Working cement, clay, or stone (B28)

B28            Working cement, clay, or stone(16257)
Cassette form for casting concrete products and relevant method // 2642761
FIELD: construction.SUBSTANCE: cassette form contains at least one forming compartment formed by at least two parallel surfaces form and many elements of the side planking between the parallel surfaces form that define the thickness of cast products. In this case, the side formwork element comprises a surface moulding cover and a supporting structure with which the surface melding cover is detachably connected.EFFECT: increase the efficiency of adjusting the width of the cast product.10 cl, 5 dwg
ould set for forming complex ceramic workpieces // 2642575
FIELD: metallurgy.SUBSTANCE: mould set contains a water-absorbing matrix located in a metal frame, a core and a boosting unit. At that, the water-absorbing matrix is made of a porous polymer that fills the entire volume formed by the outer contour of the workpiece and the frame. In the body of the matrix, there are channels with a diameter from 2 to 15 mm, located from the base of the frame to the working surface of the matrix. The distance between the centers of the channels, as well as from the working surface of the matrix to the end of the channel, is from 15 to 40 mm. The matrix in the area of the frame base is made with a gap, and the frame has branch pipes for supplying air and water under pressure to this gap. The boosting unit contains a branch pipe for feeding slurry under pressure.EFFECT: increased productivity of mould sets for forming complex ceramic workpieces.1 dwg
ethod for production of composite carbonized products // 2642573
FIELD: construction.SUBSTANCE: method for production of composite carbonized products includes mixing of killed calcium or dolomite lime and carbonate filler in the form of waste from extraction and processing of limestones fractions up to 5 mm with to produce moulding mass, the carbonization of the products with carbon dioxide. In addition, the cutting of the products is carried out. And the moulding mass is prepared by extrusion method. Provide the extrusion moulding of the products from the moulding mass under the pressure of 55-75 kg⋅s/cm2. At the same time the wastes from stone sawing of the shelly limestones or nummulite limestones, or crushing and processing wastes of calcareous rock for break stone, or crushing and processing wastes from volcanic rocks for break stone are used as the carbonate filler.EFFECT: product strength increase.12 ex
High-strength fine grain concrete // 2641813
FIELD: construction.SUBSTANCE: mixture for modified concrete containing portland cement, sand, nanosilica sol, white carbon, superplasticizer and water, characterized in that as a superplasticizer, a Linamix PK additive is used, with the following ratio of components wt %: sand: 66.3-67.8, portland cement 22-22.5, water 5.8-6.1, Linamix PK 3.38-3.45, microsilica 0.225-3, nanosilica sol 0.084-0.351, white carbon 0.045-0.158.EFFECT: obtaining a mixture for modified concrete of the brand by mobility P2 with a minimum consumption of cement.4 tbl

ethod for forming long-length rod articles with maximum cross-sectional area on single auger presses of equal or larger cross-sectional area of auger path and device for its implementation // 2641798
FIELD: machine engineering.SUBSTANCE: method for forming long-length rod articles with maximum cross-sectional area on single auger presses of equal or larger cross-sectional area of auger path includes movement of initial forming material by means of the auger through channel of auger press and its feeding with rotation into a deformation channel, the axis of which intersects the axis of the auger press channel at an angle from 10 to 45°. When material passes through the junction zone of these channels, its rotation gets blocked, and direction of its translational motion changes, which causes torsion deformation in the material of this zone and changing sinusoidal cycle every auger revolution by expansion and contraction strains parallel to axis of deformation channel, and deformation and compression in planes orthogonal thereto, and as a result sealing the material to compact state. The compacted material moves through deformation channel which shape of cross-sections is in the plane of junction with the auger press channel orthogonal to its axis has axially symmetrical cross-section, and in the plane orthogonal to the axis of deformation channel having elliptical cross-section shape which transitions along the channel length from elliptical to axially symmetrical with increase of cross-section area. The material is fed from the deformation channel into a shaping channel, in which the area and the shape of rod cross-sections formed from the material is changed along the channel length to the size and shape of the ready product. Material is subjected to deformation of axial compression in the deformation channel, and in forming channel it is subjected to strain deformation along the channel axis. The device for implementing the method is described.EFFECT: increased production efficiency from powder, granular and discrete plasticised materials of long-length compact rod billets and articles uniform in structure and composition of material, which cross-sectional area can be greater than the cross-sectional area of the auger press channel.4 cl, 8 dwg
ethod of manufacturing products under pressure from high-strength fibrous concrete // 2641363
FIELD: construction.SUBSTANCE: method of manufacturing products under pressure of high-strength fibrous concrete, by which reinforcement is installed (if necessary) and concrete mixture is laid in the mould cavity. Thereinafter, the mould is closed and pressure is created inside the mould by means of a press, whereby the concrete mixture is pressed out. After the concrete has gained strength, the product is released from excess pressure and removed from the mould. Wherein the concrete mixture is filled with metallic or non-metallic fibres before the concrete mixture is laid in the mould, whereby fibrous concrete is obtained. The concrete mixture laid in the mould is held therein at a pressure of not less than 2.5 MPa before gaining the stripping strength, but not less than for 240 minutes. The hardening concrete mixture is heated to a temperature of not more than 80°C due to feeding a coolant inside the mould cavity. Wherein the coolant temperature for heating up the products to be moulded should not exceed 95°C, and the temperature increase rate should not exceed 35°C per hour.EFFECT: improving the technical characteristics of products, reducing the reinforcement consumption, reducing the labour intensity and the work implementation time.4 dwg

Device for clay bar moisture control // 2641048
FIELD: construction.SUBSTANCE: device for clay bar moisture control contains a device for determining the bar density, connected to the registrar connected to the control system of the water supply to the mixer. The device consists of a housing in which a loading lever with an indenter mounted on the axis rotatably and a position sensor are mounted. The indenter is made in the form of a wedge-shaped tapered in the radial direction of the wheel. The device body is equipped with two support rollers, between which the indenter is located. The rotation axes of the support rollers and the indenter are coaxial. Outside, the body is equipped with a hinged mounting mechanism.EFFECT: increased operational reliability and durability of the device, increased measurement accuracy of clay bar density.4 cl, 4 dwg
ethod for manufacturing pallet for vibrocompression // 2640241
FIELD: construction.SUBSTANCE: method for manufacturing a pallet for vibrocompression includes manufacturing a wooden base with flat surface, fixing wooden elements with strainers, manufacturing and fixing protective C-shaped profiles at ends. First, an intermediate layer of wear-resistant coating is created on the levelled surface of the wooden pallet base, for which purpose the pallet base surface is impregnated with a compound - a polyester resin with a hardener. After that, the wear-resistant surface layer of the pallet is directly created by applying a glass base to the surface of the primed pallet and impregnating it with the compound, then the pallet is placed on a thermovacuum table, covered with an elastic membrane and vacuum of 0.006-0.008 MPa is created between the table surface and the membrane. The pallet is heated to a temperature of 70-80°C and held at such pressure and temperature for 20-30 minutes, and after solidification, the compound excesses are removed from the pallet surface.EFFECT: expanding production capabilities by means of imparting strength and wear resistance to the sheet surface.5 cl, 3 dwg

Boer // 2639746
FIELD: mining.SUBSTANCE: boer contains a rotation axis, a shank for clamping the drill in the tool holder, and a rod for removing the drilling dust produced during drilling. At the end of the rod turned in the feeding direction, a bit head is fixed, which has a point (8) on the end facing towards the feed end. Rod with facing side in the feed direction and head with the request to the Web part are limited to relevant connecting surfaces through which the boer head is connected to the backbone. Dependence is given to determine the ratio of the diameter of the boer head to its height.EFFECT: high drilling speed with a compact boer head shape.16 cl, 25 dwg
ethod of manufacturing products based on binder with thermal insulating layer from mineral wool thermal insulation for construction of buildings and structures // 2639218
FIELD: construction.SUBSTANCE: method of manufacturing long products is characterized by the fact that a thermal insulating layer represented by mineral wool insulation is laid in a mould, so that fibres of mineral wool insulation are directed mainly perpendicular to the carrier layer made on the basis of a binder. The reinforcing cage of the carrier layer is laid. After that, the carrier layer is laid or poured. Wherein the possibility for the mineral wool insulation fibres to at least partially penetrate into at least a carrier layer part larger by area is provided.EFFECT: improving the reliability of fastening a thermal insulating layer to concrete layers due to the interaction of the mineral wool thermal insulation fibres with the concrete layers, that allows to considerably increase the strength, reliability and durability of products, to increase the service life of buildings and structures, and simplifying the manufacturing technology of the products.28 cl

Suspension distributor and method for its use // 2638666
FIELD: machine engineering.SUBSTANCE: gypsum suspension mixing and distribution unit includes a mixer configured for mixing water and calcined gypsum to form water calcined gypsum suspension, and the suspension distributor communicating with the mixer by fluid medium. The suspension distributor includes a feed tube having a first inlet portion with a first inlet feed opening and the second inlet portion with a second inlet feed opening located at a distance from the first inlet feed opening. The first inlet feed opening is adapted to receive the first flow of aqueous calcined gypsum suspension from said mixer and the second inlet feed opening is adapted to receive the second flow of aqueous calcined gypsum suspension from said mixer. In addition, the suspension distributor includes a distribution tube, extending generally along the longitudinal axis and comprising an inlet portion and an outlet distribution opening in fluid communication with the inlet portion which is in fluid communication with the first and second feed openings of the feed tube. Wherein the outlet distribution opening extends a predetermined distance along a transverse axis substantially perpendicular to the longitudinal axis. In this case, the outlet distribution opening in fluid communication with the first and second inlet feed openings and is configured to discharge the first and second flows of the aqueous calcined gypsum suspension from said suspension distributor through the outlet distribution opening. The cross-sectional area of the distribution tube inlet portion openingis greater than the total area of cross-sectional area of the first and the second inlet feed openings.EFFECT: increase in efficiency of mixing and distribution of gypsum suspension.22 cl, 39 dwg, 3 tbl

ultilayer construction block and method of its manufacture // 2638197
FIELD: construction.SUBSTANCE: invention relates to the manufacture of construction materials, namely the manufacture of heat-efficient multilayer blocks (heat blocks) intended for erecting external fencing structures of residential, public, heated industrial and agricultural buildings. A multilayer construction block consists of an outer layer, an inner layer, and a heat-insulating layer arranged therebetween, fastened together by basalt plastic reinforcing bars, the heat-insulating layer being made of polyurethane foam. The outer layer consists of a texture layer and a carrier layer. The thermal insulation layer is made of rigid foam polyurethane and additionally has surface perforation on both sides. The basalt plastic reinforcement is made with sandy covering and is inserted at different angles in an amount of 4-6 pieces at a distance of 30 mm from the block edge and evenly distributed along the block plane. A method for manufacturing such a block is also described.EFFECT: high operation indices, such as heat and sound insulation, strength, durability; is environmentally friendly and safe.6 cl, 2 dwg

Yarn-cement slab manufacturing method for production of fiber-cement slabs // 2638196
FIELD: technological processes.SUBSTANCE: method comprises the steps for producing a continuous fiber-cement multilayer preform in production area by laying at least one monolayer of first type of monolayers having a first width (W1) in transverse direction and at least one monolayer of the second type of monolayers having a second width (W2) in said transverse direction. Herewith specified first width (W1) is less than said second width (W2). At least one monolayer of the second type of monolayers extends laterally beyond at least one monolayer of the first type of monolayers. At least one layer of said continuous fiber-cement multilayer preform is accumulated on a profiled collecting roller. Said collecting roller has a recess in axial direction along at least a part of its circumference, as a result of which at least the first monolayer is produced inside said recess, whereby an accumulated blank is produced. Said accumulated blank is removed from the collecting roller, whereby an uncured shaped fiber-cement slab is produced. Said uncured fiber-cement slab is cured to produce said shaped fiber-cement slab.EFFECT: increase of fiber-cement slab production efficiency.14 cl, 18 dwg

achine for decoding by image transmitting method and image transmitting method // 2638192
FIELD: physics.SUBSTANCE: machine, in which the powdered material or granules is used, comprises a support surface movable in a predetermined direction and a decorating device operating above the said support surface. The said device has a movable transfer belt, which is a closed loop disposed between the drive rollers and performs the function of receiving the decor obtained by the powder material or granules and transferring it to the said support surface. The device comprises the first unit configured to form one such decor on the transfer belt, and the second unit adapted to carry the said decor from the transfer belt. Moving the transfer belt is provided in the specified direction of advance. The second unit comprises a lower section of the transfer belt, which has an outer side facing downwards to the said movable support surface. This section extends between the first abutment upstream and the second abutment downstream. An actuating means is provided that operates on the inside of the said section and is configured to rapidly move gas present in the immediate vicinity of the said section and transfer vibration to the said section by the said gas. The driving means is a gas jet disposed in a row transverse to the transfer surface of the said movable belt and configured to create a turbulent motion situation.EFFECT: improving the effectiveness of decoration.17 cl, 9 dwg

ethod for forming facial surface of monolithic structures // 2638048
FIELD: construction.SUBSTANCE: method for forming facial surface of monolithic structures includes cutting facing sheets with dimensions corresponding to the inner surface area of the board formwork and the inner surface area of the cutoff. Then, on a facing sheet, at a distance equal to the cutoff length, a chamfer is made. In the chamfer place, the sheet is bent at an angle of 90°. The outer surfaces of the board formwork and of the cutoff are pre-cleaned and degreased. A double-sided adhesive tape is glued in the form of lines with an equal pitch on the board formwork and cutoff surfaces. Between the adhesive tape lines, glue or liquid nails are applied in zigzag. Thereinafter, the facing sheet bent L-shaped at the chamfer points is applied to the inner surface of the cutoff and the board formwork and is pressed tightly. Then, likewise, the facing sheets are glued onto the inner surface of the counter board and the cutoff, connected to the first board.EFFECT: simplifying the technology of forming the facial surface of monolithic structures due to minimizing the number of formwork joints, obtaining a concrete structure with corners without laitance bleeding.4 cl, 2 dwg

achine and method of manufacturing construction panel // 2637677
FIELD: construction.SUBSTANCE: machine for finishing construction panels comprises a conveyor line designed to receive incoming housing elements of construction panels and to transport the housing elements in the working direction (F) along the group of treatment stations (A, B, C, D) in the machine. Moreover, construction products are essentially made in the form of rectangular parallelepipeds having: a base, main, side and an opposite additional main side, each of which has a relatively large contoured area; and four edge sides having a relatively small contoured area. Wherein the first treatment station (A) from said treatmentstations comprises treatment means acting in the width direction, designed for introducing, by means of gluing, a first edge strip along the first edge side, from the four edge sides, so that the first edge strip is located parallel to the base, main, side. The second treatment station (B) from said treatment stations, comprises treatment means acting in the vertical direction, designed for introducing, by means of gluing, a basic surface layer covering the entire base, main, side and the base side of the first edge strip. Thereinafter, vertical pressure is applied to the housing element and the first edge strip in the direction transverse to the working direction (F), when the housing element and the first edge strip are passed through the second treatment station, so that the basic side of the first edge strip is aligned with base, main, side of the housing element when they are passed through the second treatment station (B).EFFECT: improving the panel finishing efficiency.19 cl, 6 dwg
Device for cutting off cured concrete product obtained by means of sliding formwork // 2636193
FIELD: construction.SUBSTANCE: device comprises a frame with wheels to move the device along the stand for casting and a saw for cutting concrete, connected to the frame with the ability to move. The device comprises a brush unit for cleaning the stand for casting. The brush unit is connected with the device frame with the possibility of adjustable movement in the vertical direction, to use the brush unit to clean the upper surface of a cast concrete product on the stand for casting.EFFECT: reducing the time required for changing the running process - from cutting to cleaning and converting the stand for casting, as well as for the stages of cleaning and conversion, eliminates the need in machine lifts at a manufacturing plant and, accordingly, the risk to personnel.7 cl, 1 dwg

Device and method for mixing and stirring and method for manufacturing lightweight gypsum plate // 2635811
FIELD: technological processes.SUBSTANCE: device (10) for mixing and stirring for a gypsum solution has a round case (20) forming a mixing area, a rotating disk (32) located in the case, and a tube (50, 90, 95, 96, 97, 97') for feeding the solution to a sheet paper to cover (1) the gypsum plate. The groove has a fluid channel portion (60, 61, 91, 92) and its cross section is non-axisymmetric relative to the central axis (C, C1) of the tubular channel, or a fluid channel portion (98.99) changes the position of the central axis of the tubular channel as a result of a change or lateralization of the fluid channel cross-section. Axisymmetric vortex flow generated in the tubular channel in the form of the twisted intra-tubular flow (F) is torn at the fluid channel portion, and therefore its twisted movement which may lead to inhomogeneity or instability of the density distribution, essentially disappears in the solution (3) poured on a sheet of paper.EFFECT: prevention of misdistribution, deviation or irregular distribution of the solution density on a sheet of paper.13 cl, 21 dwg

Drilling bit for diameter expansion // 2635703
FIELD: mining.SUBSTANCE: bit inserted for use into the prepared hole drilled in the structure comprises: a cutting blade portion that has a plurality of separate cutting blade portions used to bore sections of the prepared hole; a cutting blade retaining portion that supports a plurality of separate portions of the cutting blade in the radial direction with the possibility of sliding; and a shank portion that supports the cutting blade retaining portion. Plurality of individual portions of the cutting blade are arranged in a circumferential direction and placed on a plurality of steps in the shaft direction. Plurality of individual portions of the cutting blade of the respective steps are set in sliding by the centrifugal force resulting from the rotation, so as to expand radially outwards with the respect to the cutting blade retaining portion. Plurality of individual parts of the cutting blade of the respective steps have different movement pitches in the radial direction.EFFECT: increased efficiency of diameter expansion by boring.8 cl, 10 dwg
ethod of manufacturing products based on binder with thermal insulating layer from mineral wool thermal insulation for construction of buildings and structures // 2635666
FIELD: construction.SUBSTANCE: invention relates to a method of manufacturing concrete products with a thermal insulating layer for the construction of buildings and structures, in particular flooring panels. A layer of thermal insulation, which is mineral wool insulation, is placed in a mould in such a way that the fibers of the mineral wool insulation are directed predominantly perpendicular to the carrier layer made on the base of a binder. The reinforcing framework of the carrier layer is laid in such a way that a clearance is formed between the thermal insulation layer and the reinforcing framework of the carrier layer. After that, the carrier layer is laid or filled. Wherein it is possible for the mineral wool insulation fibers to at least partially penetrate into at least a larger by area part of the carrier layer.EFFECT: increasing the strength, reliability and durability of products, increasing the service life of buildings and structures and simplifying the production technology of such products.28 cl
oulding set shaping composite ceramic blanks // 2635151
FIELD: technological processes.SUBSTANCE: moulding set for shaping composite ceramic blanks comprising a water-absorbent matrix, a core, assemblies for their mutual co-axial installation and make-up, core fixing units, each consisting of a guide bushing located on the core flange and a locking rod disposed on the flange of the matrix, wherein the rod is made to have a length of not less than one-third the core length, characterized in that the fixing points are arranged in mutually perpendicular planes two in each plane, wherein the length of the two fixing points located in the same plane is 20-50 mm shorter than the two points that are in a different plane.EFFECT: increasing the productivity of assembly of mould set when forming complex profile ceramic blanks.1 dwg

ethod for manufacturing segment of wind power plant tower from precast concrete element and formwork of tower segment from precast concrete element // 2635149
FIELD: construction.SUBSTANCE: method for manufacturing a segment of a wind power plant tower from a precast concrete element includes installation of an inner formwork having at least one opening and at least one holding assembly on the inner side of the inner formwork in the area of the opening. The first end of the concrete anchor or the removable element is introduced at the first end of the concrete anchor from the outside of the inner formwork through the opening into the holding assembly to hold the concrete anchor. The outer formwork is installed. Concrete is poured between the inner and outer formworks. The removable element at the first end or the first end of the concrete anchor is removed. The inner and outer formworks are removed. The holding unit has first and second holding plates arranged parallel to each other, back plates and the first and second holding elements. Each of the first and second holding elements has the first spring end, a stop portion and the second end. The first spring ends of the first and second holding elements create spring loading when the first end of the concrete anchor is inserted in the first direction, and the stop portions of the first and second holding elements create a lock in the second direction opposite to the first direction.EFFECT: improved efficiency of manufacturing the segment of the wind power plant tower.5 cl, 7 dwg
ethod of bedder-supports manufacturing for glass-ceramic products bakeout // 2634771
FIELD: technological processes.SUBSTANCE: invention relates to the bedder-supports manufacturing for the large-sized ceramic products bakeout made of glass-ceramic of lithium aluminium silicate composition. Crystallized glass, or rejected after heat treatment products, or used bedder-supports, or castings of arbitrary shape, obtained from slips left in the makeup tanks of the mould equipment after the end of the set of glass-ceramic products until obtaining water slip with a density of 2.10÷2.20 g/cm3, with a grinding fineness with a residue on a sieve of 0.063 mm 7.1÷12.5% are crushed by the wet method. Workpieces in plaster moulds are formed. The moulded workpieces are dried in drying cabinets for 10÷20 hours at a temperature not more than 80 degrees Celsius, or under natural conditions for at least 48 hours.EFFECT: simplification of the bedder-supports manufacturing.1 cl

Device for loosening and dosing clay raw materials // 2634756
FIELD: agriculture.SUBSTANCE: device for loosening and dosing clay raw materials comprises a raw material hopper and a feeder placed beneath it, in the housing of which counter-rotating shafts with loosening elements in the form of blades are mounted. Under an unloading window located at the feeder butt, a weighing conveyor is placed. The unloading window is located at the feeder butt and is made in the form of cylindrical branch pipes, in the volume of which the shafts are arranged, the internal surface of the branch pipes is made with corrugations in the form of longitudinally arranged strips; in the feeder housing, before the unloading window, raw material rotation breakers made in the form of pins are cantilevered radially to each shaft, and cutting knives are mounted behind the unloading window on the shafts.EFFECT: device allows to increase the degree of loosening clay raw materials and to increase the dosing accuracy.7 cl, 5 dwg

ethod of manufacturing monolithic reinforced concrete beam flooring slabs with round voids, with use of non-extractable cardboard-polyethylene core drivers // 2634156
FIELD: construction.SUBSTANCE: manufacturing method of monolithic reinforced concrete beam flooring slabs with round voids, with the use of non-extractable cardboard-polyethylene core drivers, includes arranging a formwork, reinforcing, installing non-extractable core drivers and laying concrete. Wherein the core drivers are made of round cardboard pipes covered with a waterproof polyethylene film with the thickness of 0.045 mm. Wherein the pipe butts are closed with cardboard-polyethylene lids.EFFECT: weight reduction of monolithic reinforced concrete slabs.1 tbl, 2 dwg

ould for manufacturing concrete and reinforced concrete structures // 2633932
FIELD: construction.SUBSTANCE: mould contains a load frame with a formed working cavity, a hydrostatic pressing chamber located between the punch and the load frame, and a perforated tray located under the load frame, bolted to the traverse located above the load chamber. The load frame is made as a one-piece formwork with a punch. The punch consists of closely spaced closed metal profiles joined together by compressed bolts with elastic filtres.EFFECT: reduced material consumption of the mould, improved quality of the product and reduced labour costs in the manufacture of products and the mould.5 cl, 5 dwg

ethod of device system control while workpiece separation along separation line // 2633114
FIELD: construction.SUBSTANCE: method of device system (10) control while workpiece (18) separation along separation line (43) is carried out up to the first end point (E1). The separation of the workpiece (18) is performed with the saw head (12), which is moved along the guide rail (11) along the feeding direction (26). The saw head (12) is placed on the guide rail (11) in the starting position (X0) and the first part of the length (L1) is set from the starting position (X0) to the first end point (E1) of the separation line (43).EFFECT: increased accuracy of the cut.6 cl, 3 dwg

Gypsum composition, gypsum suspension, gypsum hardened body, gypsum-based building material, gypsum board and method for manufacturing gypsum-based building material // 2631751
FIELD: construction.SUBSTANCE: means for problem solving: a gypsum composition, a gypsum suspension, a gypsum hardened body, a gypsum-based building material, a gypsum board and a method for manufacturing a gypsum-based building material are provided so that they include calcined gypsum and starch-urea phosphate.EFFECT: production of a gypsum hardened body with high strength without significant increase in the amount of added water when obtaining a gypsum suspension.6 cl, 6 tbl, 4 dwg

Flow divider for the system for the apportionment of the astringent suspension // 2631725
FIELD: chemistry.SUBSTANCE: flow divider of astringent suspension contains the input pipeline that has the input end and the connecting end. The mentioned inlet conduit is arranged along the axis of the main flow passing between the inlet end and the connecting end. In this case, the inlet end forms an inlet opening. The connecting end forms the first and second connecting holes. The first connecting hole is located at a distance from the second connecting hole. In this case, mentioned inlet conduit forms an inlet channel extending between the inlet port and the first and second connecting holes. The divider also includes a first outlet conduit that communicates with the first connecting hole of the inlet conduit, a second outlet conduit and a connecting portion. The first outlet pipe has an outlet end forming the first outlet. The second outlet conduit communicates with the second connecting hole of the inlet conduit. The second outlet conduit has an outlet end forming a second outlet. The connecting part is located at the connecting end of the inlet pipeline. And mentioned connecting part is located between the first connecting hole and the second connecting hole. In this case, the inlet conduit comprises a profiled portion that forms a constriction in the inlet channel adjacent to the connecting portion. The profiled portion forms the first and second guide channels and the constriction extending laterally between the first and second guide channels along the transverse axis, substantially perpendicular to the axis of the main flow. Each of the first and second guide channels has a cross-sectional area that is larger than the cross-sectional area of mentioned narrowing. The restriction has a maximum height along the vertical axis, which is perpendicular to the axis of the main flow and the transverse axis. Each of the first and second guide channels has a maximum height along the vertical axis, which is greater than the maximum height of mentioned narrowing.EFFECT: increasing the efficiency of the distribution of aqueous gypsum suspension.20 cl, 13 dwg

Boring crown with replaceable cutting unit // 2631566
FIELD: machine engineering.SUBSTANCE: boring crown contains the cutting unit with the circular section, which at the first end is connected to one or more cutting elements and at the second end has the first plug-in element and the bore rod section with cylindrical shank. The second plug-in element is performed at the shank end, faced to the cutting part. The mentioned plug-in elements form in the plug-in direction, parallel to the axis of rotation, the insert connection and have the possibility of additional connection by means of at least one rod element, which can be inserted into at least one opening in the form of the slot.EFFECT: reliable connection of the boring crown plug-in elements, increase of the drilling stability and the resistance to the tensile load during operation.21 cl, 5 dwg

Solvent-concrete mixing plant // 2631448
FIELD: construction.SUBSTANCE: solvent-concrete mixing plant consists of a frame 1, mounted on wheels 2 with the supports 3. The frame 1 is made in the form of two support pillars (not indicated), on which a drum 6 with at least three blades 7 inside, each of which is made at the angle 135°, is movably supported by means of a cross beam 4 on sleeves 5, and a drive mechanism, the drum 6 is mounted on s shaft 8, and the latter is located in the bearing housing 9 with a nut 10. The shaft 8 is adapted to fit the bearings (not indicated) from the nut 10 side at the sliding fit and from the drum 6 bottom 11 at the pressing fit to prevent the shaft 8 neck galling at the place of great load. The drum 6 is made in the form to be able to inscribe the circumference inside it, which allows to reduce the metal content, and the drive mechanism consists of an electric motor 12, the pulleys 13, the tapered belt 14, the drive gear 15, fixed to the pulley 13, the telescopic fastener 16 at the cross beam 4 and the rim 17 in the form of the crown, mounted on the bottom 11 of the drum 6, driven by the driving gear 15. In order to overturn the drum 6, it is provided with a steering wheel 18, connected to the cross beam 4 through the sleeves 5, and to fix the drum 6 in the inclined position, the steering wheel 18 is provided with a pin 19 towards a lock 20, made in the form of a ring with holes (not indicated) for selecting the drum 6 inclination with the ability to provide the reliable position of the drum 6 in the engagement, excluding its spontaneous overturn. The pin 19 is provided with bushings 21 for guiding the pin 19 movement into the holes of the lock 20 and the spring 22 to allow the pin 19 to return to the holes of the lock 20 and by the toe 23 to facilitate the operator's work, and the electric motor 12 for the start uses the capacitor 24. The wires 25 from the electric motor 12 passes through the tubes (not indicated) of the cross beam 4 to the switch 26, and from it through the cable (not indicated) to the plug 27, to create the greater rigidity, the core barrel 28 is welded with the full penetrated weld at the drum 6 neck. Since the shaft 8 passes through the opening (not indicated) in the drum 6 bottom 11, the shaft 8 is welded from the outside to create the stiffness, and from the inside its fastener stiffness is provided by the installed fixing element 29, made, for example, in the form of the truncated pyramid, the hemisphere and so on, thus such design is reliably locks the shaft 8 with the bottom of the drum 6 and provides the long service life of the plant.EFFECT: reduction of metal consumption, ease of operation and transportation, high reliability and extended service life.2 cl, dwg

ulti-channel discharge distribution device for spreading the binder suspension // 2631443
FIELD: technological processes.SUBSTANCE: multi-channel discharge device for spreading the binder suspension contains the inlet pipeline, containing the inlet part, the transition part and the heel part, located between them. Moreover, the inlet part has the inlet end, forming the inlet hole. While the inlet part located along the main flow entrance, passing between the inlet end and the heel part. Transition part has the connecting end. Moreover, the transition part is located along the main flow discharge axis, passing between the heel part and the connecting end. When the connecting end forms the first and the second attaching holes, the first attaching hole is located at the distance from the second attaching hole. The heel part has the surface, configured to redirect the suspension flow, moving from the inlet hole along the main flow inlet axis through the heel part to the transition part along the main flow discharge axis. The inlet pipeline forms the inlet channel, passing between the inlet hole and the first and the second attaching holes. The device also contains the first outlet pipeline, which is connected with the first attaching hole of the inlet pipeline. At that the first outlet pipeline contains the outlet end, forming the first outlet hole. Besides, the device contains the second outlet pipeline, that communicates with the second attaching hole of the inlet pipeline, the second outlet pipeline, containing the outlet end, forming the second outlet hole; and the connecting part, located at the connecting end of the inlet pipeline. The connecting part is located between the first attaching hole and the second attaching hole. At that, the inlet pipeline contains the profiled part, that forms the tapering in the inlet channel next to the connecting part. At that the profiled part forms the first and the second guide channels. The tapering is formed laterally between the first and the second guide channels along the transverse axis, substantially perpendicular to the main flow discharge axis, and the cross-sectional area of each mentioned the first and the second guide channels is greater than the cross-sectional area of the tapering.EFFECT: increase of the suspension spreading efficiency.21 cl, 12 dwg

Cutting device and method for pile cutting // 2631434
FIELD: construction.SUBSTANCE: device (100) comprises a housing (102) including means (103) for connecting the cutting device to the work machine, gripping means (104) attached to the housing (105) to bring the cutting device into motion around the pile to be cut. Said gripping means (104) comprise at least two opposing gripping parts (106) intended to provide gripping the pile to be cut for retaining the pile, to provide gripping the pile to be cut for removing the pile and for releasing the gripping means (104) from said grippings. The device (100) comprises at least two saw parts (108) made movable to the sawing position and to the safe position, and saw means (110) attached to the saw parts (108) for carrying out the sawing operation, when at least one saw part is in the sawing position. The device (100) comprises resilient means (114) intended for adapting to forces arising during the sawing motion of the saw means (110). The saw means (110) are intended to move during the sawing motion substantially horizontally with respect to the pile to be cut when the saw portion (108) is in the cutting position, said resilient means (114) are adapted to the forces arising during the sawing motion of the saw means (110) to prevent damaging the saw parts.EFFECT: simplifying the operation and increasing the durability of sawing means.14 cl, 6 dwg

System and method for obtaining bound fiber mats // 2630485
FIELD: construction.SUBSTANCE: in accordance with the invention, continuous strands of a filament are pre-coated with molten thermoplastic. The pre-coated filaments are then laid on a tape to form a fibrous mat. The filaments can be laid in continuous segments, or they may be cut into discrete segments. After laying the filaments, they are heated to re-melt the thermoplastic and simplify the mutual binding of the intersecting fibers. The invention additionally relates to a system and method for introducing the resulting fibrous mats into a composite construction slab.EFFECT: creation of fibrous mats together with composite construction slabs.7 cl, 7 dwg

Boring crown with replaceable cutting unit // 2630396
FIELD: machine engineering.SUBSTANCE: boring crown contains the cutting unit with the circular section, which at the first end is connected to one or more cutting elements, and the second end has external plug-in element and the shoulder. The section of the bore bit core has the cylindrical shank, which has at one end facing the cutting part, the internal plug-in element with the end surface. The plug-in element forms the insertion connection in the direction parallel to the axis of rotation. In addition, it can be connected by means of at least one rod element, which can be inserted into at least one opening in the form of the slot. At least one rod element is fixed to the outer side of the inner plug-in element. The outer plug-in element has at least one opening in the form of the slot.EFFECT: unintentional opening of the boring crown elements and the disconnection of the replaceable cutting unit are excluded, the drilling stability and the tensile load resistance from the drilling machine side are increased.22 cl, 5 dwg
ine agitator for foam suspension // 2630010
FIELD: machine engineering.SUBSTANCE: mine agitator for the foam suspension, containing the mixer housing (7) and the hollow screw rod (5), mounted inside the agitator housing (7); the agitator housing (7) is provided with the inlet (1) for the two-phase gas-liquid foam, that is located at the front end of the agitator, the suspension inlet (2) at the rear end and the hand valve (15) and the foam suspension outlet (16) at the rear end of the agitator; the hollow screw rod is equipped with the front bearing (3) at the forward end of the agitator and the rear bearing (13) at the rear end of the agitator; the front bearing and the rear bearing are fixed inside the agitator housing with the help of the support bracket (14), respectively; the hollow screw rod is the hollow rod, that has several helical blades, welded evenly on the agitator, and the plurality of flow direction holes (8), evenly spaced along the rod; several drive blades are installed on the front part of the hollow screw rod in front of the inlet for two-phase gas-liquid foam, the angle of the drive blades installation is 30-40°.EFFECT: agitator has the low foam fracture rate and the high quality of foam mixing and is able to produce the large flow of foam suspension continuously.8 cl, 3 dwg

ethod for manufacturing architectural decorative elements of glass-fiber reinforced concrete // 2629633
FIELD: construction.SUBSTANCE: method for manufacturing architectural decorative elements from glass-fiber reinforced concrete includes a workpiece manufacture, that repeats the architectural element. At the same time, initially manufacture a wooden box, for example, from the plywood, having a rectangular shape according to the dimensions of the manufactured architectural element. The workpiece is manufactured, for example, from the expanded polystyrene, on which the contour and the relief of the architectural element are cut in the mirror image, then it is put into the wooden box and filled with glass-fiber reinforced concrete. Then after the full cure of not more than 24 hours, the resulting architectural element is removed, separated from the expanded polystyrene and cleaned.EFFECT: reduction of the architectural and decorative elements manufacturing period.1 dwg

ethod of manufacturing frozen samples structurally comparable with explosed massif of roaches // 2629610
FIELD: mining engineering.SUBSTANCE: first, inclusions of cubic form are made in a special lattice tray, the compaction of roach is carried out by vibration, after which the inclusions are frozen to the temperature specified by the experiment. Then, tray with cells is dismantled, the inclusions are removed, they are incubated at room temperature for a while until condensate appears on the surface for better adhesion to binder, the inclusions are mixed with binder - occurrence solid, mixed inclusions with binder are placed in a specially manufactured detachable cylindrical shape (collet). Then, collet with solid is installed in the climatic chamber and frozen to the temperature, corresponding to the temperature of solid in massif, applied to different periods of year, and held in refrigerator until the temperature in the center of sample with the thermal sensor installed in it is equal to the set temperature.EFFECT: possibility of making samples that are structurally comparable to a blown up massif of roaches, allowing to determine on them the resistance to soil shear by the single-plane cut method.2 dwg

Device for separation of basis along the separation line and method of controlling them // 2629505
FIELD: technological processes.SUBSTANCE: device for dividing the substrate along the dividing line between the first endpoint (EA) and the second endpoint (EB), including a saw unit with a saw blade that can rotate about the axis of rotation, a guide carriage for driving the saw unit along the guide rail, a control unit for controlling the saw unit and the carriage, and a first indicator device that marks the first end point (EA) of the dividing line. A second indicator device is provided which marks the second end point (EB) of the dividing line. The first and second indicator devices have an optical indicator element that optically marks the end point (EA, EB), A signal generator and a detector device, wherein the signal generator sends a position signal corresponding to the position of the end point (EA, EB) or the position of the origin point (RA, RB), which is located at a certain distance (DA, DB) from the end point (EA, EB), and the detector device receives the position signal of the signal generator.EFFECT: improvement of the device for dividing the substrate along the dividing line.8 cl, 4 dwg

anufacturing method of concrete construction, premanufactured element of concrete construction, as well as concrete construction // 2629183
FIELD: construction.SUBSTANCE: objects of the present invention are manufacturing method of concrete construction, a prefabricated element serving as a semi-finished product for the manufacture of the concrete construction produced using the mentioned method, as well as corresponding concrete construction. The mentioned method comprises the following steps: manufacture of the prefabricated structural element comprising first reinforcing structures, which have three-dimensional textile net structures and first thermal insulating elements, pouring into the concrete formwork to form the first concrete layer, lowering of the prefabricated element onto the first concrete layer.EFFECT: reduced costs, increased strength.14 cl, 12 dwg

ethod for manufacturing gypsum panels and relevant device // 2627331
FIELD: construction.SUBSTANCE: method includes the stage of continuously injecting gypsum pulp into the space between a pair of the upper and the lower sheets of construction paper while simultaneously feeding a pair of the upper and the lower sheets of construction paper to obtain a multilayer material and ensuring the passage of the multilayer material between the pair of the upper and the lower moulding plates for obtaining a moulded object, the thickness of which depends on the gap between the plates. Wherein as at least one of a pair of upper and lower moulding plates, a moulding plate is used, comprising: a main plate body made of an electrically conductive material; and an embedded electrode embedded in the main plate body. Wherein the embedded electrode is electrically insulated from the main plate body by an insulator and is embedded so that its portion extends to the surface of the main plate body, in contact with the sheet of construction paper. Wherein an electric circuit is formed by electrically connecting the main plate body and the embedded electrode embedded in the main plate body, and voltage is supplied into this circuit. When cutting a construction paper sheet bringing the main plate body and the embedded electrode into contact with the gypsum pulp, and when electric current appears in the electrical circuit, the gap between the pair of the upper and the lower moulding plates is expanded to eliminate the cause of conduction. After that, the gap between the pair of the upper and the lower moulding plates is restored to the original gap size.EFFECT: increasing the efficiency of continuous production of gypsum slabs without stopping the production process, reducing the manufacturing of a significant number of defective products.10 cl, 10 dwg

Device for preparation of the porcelained mixture // 2626202
FIELD: machine engineering.SUBSTANCE: cavitation mixer is designed for various heat and mass transfer processes in liquid and gaseous media in chemical technology, the production of building materials in which the creation of a uniform field of concentrations and temperatures throughout the volume of the stirred medium at a reasonable cost of power is required. Device for preparing porous mixture includes the mixing bowl, the vertical drive shaft with radial girders on it, on the ends that have a hollow tapered blades with nozzles directed blades pointing in the direction of rotation of the drive shaft, internal cavity blades connected with gas source. Wedge-shaped blades made of hollow cones with nozzles in the form of diffusers. Nozzles are placed at the basis of hollow cones. Outside the cones, the cylindrical guides are coaxially mounted in the head part of them, the cylindrical guides are made with a diameter smaller than the diameter of the bases of the cones. The internal cavity of the cones are connected with gas source via hollow radial arms and hollow vertical drive shaft. The walls of the cylindrical guides can be made in the head part of the blades by solid ones, in the rear part they are perforated. Perforated part of the cylindrical guide rails can be made of twisted coil springs or multi-turn cylindrical wave springs. To the rear parts of the cylindrical guides, coaxially hollow toroidal chambers may be joined, along the perimeter of toroidal chambers from the exterior surfaces of hollow cones are made doughnut holes conical shape, internal volume of toroidal chambers connected through hollow radial mounts gas source.EFFECT: increasing the efficiency of mixing and dispersion processes of liquid materials in the production of small tonnage.5 cl, 4 dwg
ixture of powder materials of gravitational type // 2626102
FIELD: machine engineering.SUBSTANCE: mixer of powder materials includes a mixing chamber on a moving wheel which axis is fixed in a stationary bed and a motion generator that converts the reciprocating motion of the pendulum into a rotation of the wheel in which the mixing chamber is fixed.EFFECT: obtaining a homogeneous powder mixture due to the operation of the generator of motion, as a result of which the mixing chamber with the powder mixture rotates together with the wheel, and the movement of the mixture along the movable inclined trays and walls of the chamber ensures its more intensive mixing.1 dwg
Facade decorative composite material // 2625059
FIELD: construction.SUBSTANCE: coating composite material includes, wt %: magnesia binding material, obtained by calcining dolomite waste and its subsequent grinding, 48.5-57.5; preservative - methacid 5.9-7.9; thickener - glue on an organic basis 13.5-17.5; distributor of the modifying additive - polycarboxylate superplasticizer 0,6-0,7; multi-walled carbon nanotubes MWNTs, surface-modified by photocatalytically acting nanoparticles in the form of titanium, zinc, iron, manganese, molybdenum, chromium or tungsten compounds separately deposited on the MWNT surface, 0.05-0.8, depending on the operating conditions of the coating material; water is the rest.EFFECT: high mechanical strength, wear resistance, adhesion to the concealed surfaces of facade decoration composite material, self-cleaning, long time of use without renovation.1 dwg, 3 tbl

Plant for manufacturing drywall and method of manufacturing gypsum slab // 2624847
FIELD: construction.SUBSTANCE: plant for manufacturing drywall comprises at least one circulating device (10) in the form of a conveyor belt for obtaining a gypsum layer formed from the upper shell (27), the lower shell (28) and the single-layered or multilayer gypsum core (26) arranged therebetween, and for moulding and curing the gypsum layer (16). Wherein the device (10) in the form of a conveyor belt has a support belt (11) providing a support for the bottom side (17) of the gypsum layer (16). Wherein in the vicinity of the device (10) in the form of a conveyor belt, there is a device for ultrasonic impact with one or more ultrasonic radiators (15, 20, 22, 24). Wherein at least one lower ultrasonic radiator is arranged between the support belt (11) and the bottom side (17) of the gypsum layer (16), and the support belt in the vicinity of said ultrasonic radiator passes along the deflecting device (13).EFFECT: increasing the effectiveness of ultrasound application and its introduction into the gypsum layer.15 cl, 4 dwg

Joist for producing cast-in-place and precast building frame // 2624476
FIELD: construction.SUBSTANCE: joist for producing cast-in-place and precast building frame is made cast-in-place and precast in the form of three-dimensional bodies with a precast lower broadened part and a cast-in-place upper part narrowed relative to the lower part in the form of an extended polyhedron with a cross section mainly in the form of a rectangle or trapezium forming a single bearing profile with local broadenings in the form of projections arranged along the length of the joist at a pitch corresponding to the pitch of hollows leaning against the joist of floor hollow slabs, together with the precast part. The projections are extended in the direction of the hollow axes, have a length not less than 1.3 of the thickness of the corresponding slabs, and are placed in the presupport and support zones of the slab hollows. In this case, the precast broadened part of the joist on one side consists of a main bearing element of rectangular cross-section and an auxiliary bearing element of rectangular cross-section parallel to it. The main and auxiliary elements are joined together by reinforced connecting elements of rectangular cross-section with a width of 0.68, a length of 0.568-0.795 of the hollow slab thickness and thermofillers made of thermal insulating materials with a bulk density of 35-200 kg/m3 are mounted between the main, auxiliary and connecting elements. In the cast-in-place joist part narrowed relative to the precast lower broadened part the projections are arranged on its other side at a pitch of the connecting elements of the precast lower broadened joist part and have a length of 0568-0795, a width of 0.68 of the corresponding plates thickness. The height of the projections must be not less than the height limited by the highest point of the cross section of the projections, which are inserted into the hollows of the slabs leaning against the joist. The cast-in-place upper joist part narrowed relative to the lower part is made with the possibility of mounting an outer layer of enclosure structures on the auxiliary elements of the joist, structures are made of piece materials of a height equal to or greater than the height of the cast-in-place part of the joist, which fulfils the role of form system for grouting the upper part narrowed relative to the lower part of the joist; as well as for grouting the frame joints and the building's overlap, thermofillers made of thermal insulating materials with a bulk density of 35-200 kg/m3 are mounted between the outer layer of enclosure structures, projections over the connecting elements of the precast lower broadened part of the joist, polyhedron at the cast-in-place part of the joist. U-shaped rods passing through all joist cross-section are mounted over the upper surface of the joist main elements along their longitudinal axis, are located between prestressed reinforcement of lower and upper layers of prestressed rods, and are required for mounting the upper working reinforcement of the joists.EFFECT: reduction of labour and material costs while reducing production time of works and ensuring that they can be conducted in all weather conditions, in regions belonging to the harsh climate zones with low negative temperatures in winter as well, and providing straightness state of the joist surfaces at facade surfaces of buildings and structures.16 cl, 6 dwg

String tension device of machine for cutting raw material // 2623764
FIELD: construction.SUBSTANCE: string tension device of the machine for cutting raw material includes a feed drive for the raw material, an air cylinder, a string rigidly fixed with one end to one support of the machine, and with the other end - to the rod of the pneumatic cylinder, the housing of which is rigidly fixed to the other support of the machine. Wherein it additionally contains a pneumatic distributor with electromagnetic control, a strain gauge, a pressure sensor in the pneumatic cylinder, a selector generating a signal proportional to the string tension force, the first and the second comparison devices, a string tension force regulator, and an air pressure regulator in the pneumatic cylinder. Wherein the selector output is connected to the direct input of the first comparison device, the inverse input of which is connected to the strain gauge. The output signal of the first comparison device is supplied to the input of the string tension force regulator, the output signal of which is supplied to the direct input of the second comparison device, the inverse input of which is connected to the pressure sensor output in the pneumatic cylinder. The output signal of the second comparison device is supplied to the air pressure regulator inlet in the air cylinder. The output signal of the air pressure regulator in the pneumatic cylinder is supplied to the pneumatic cylinder input with electromagnetic control, the output of which is connected to the pneumatic cylinder input.EFFECT: increasing the service life of the string of the machine for cutting raw material and reducing the technological waste while manufacturing construction products.2 dwg

ethod of cutting raw material massive of cellular concrete // 2623763
FIELD: construction.SUBSTANCE: method of cutting a raw material massive of cellular concrete by means of feeding the raw material to a workplace equipped with a feed drive for a raw material massive, pneumocylinders and strings rigidly fixed with one end to the support of the machine for cutting raw material, and the other to a rod of a pneumatic cylinder. Wherein the automatic string tension control system is additionally connected, consisting of a strain gauge, pressure sensors for pneumatic cylinders, a selector generating a signal proportional to the string tension force, two comparating devices, a string tension force regulator, a regulator of air pressure in a pneumatic cylinder, a pulse width converter and a pneumatic distributor with electromagnetic control forming the control action on pneumatic cylinders. Wherein before the start of cutting the raw material massive, the matrix-column of permissible values of string tension forces is determined, conditioned by the mechanical properties of the strings, the cutting speed and the rheological properties of the raw material. The tension force of each string is measured, and a matrix-column of measured values is formed. The permissible value of the tension force for each string is compared with the measured values, the difference signal of which is supplied to the input of the string tension force regulator. The pressure in each pneumatic cylinder is then measured. The output signal of the string tension force regulator is compared with the changed value of the pressure in the pneumatic cylinder. The difference signal is supplied to the input of the air pressure regulator in the pneumatic cylinder. The output signal of the air pressure regulator in the pneumatic cylinder is supplied to the input of the pulse-width converter. The output pressure of the pulse-width converter is supplied to the pneumatic cylinder pulling the string with the required force.EFFECT: increasing the service life of the string of the machine for cutting raw material and reducing the technological waste while manufacturing construction products.2 dwg

ethod of manufacturing crucible with quartz ceramic bottom branch pipe and device for its implementation // 2623404
FIELD: technological processes.SUBSTANCE: crucible preforms with a bottom hole are made separately from the branch pipe. In gypsum molds, inserts are installed with a gap equal to the wall thickness of the future crucible preform or the branch pipe. In the gaps, a slurry of quartz glass grits is poured. The preforms of the crucible and the branch pipe are formed. The inserts are removed, and the preforms are dried in gypsum molds in the air for, at least, 48 hours. The gypsum molds are removed. Assembly of the crucible preforms and the branch pipe is made into one product. The branch pipe is fixed in a tripod, onto which the support ring is mounted. Above, the crucible is fed in such a way that part of the branch pipe above the support ring protrudes at a small distance above the inner wall of the crucible. Between the gaps formed between the parts of the outer wall of the branch pipe and the bottom of the crucible, which are attached to fixing, a slurry is poured. Drying in the open air is not less than 72 hours. Then it is fired at a stepwise rise in temperature from 20 to 1200°C with an exposure of up to 2 hours at each temperature range, with a temperature rise rate of 50°C/hour up to 150°C/hour.EFFECT: obtaining a crucible with a quartz ceramic bottom branch pipe with a uniform wall thickness.2 cl, 5 dwg
Device for forming ceramic articles by slip casting // 2623393
FIELD: technological processes.SUBSTANCE: invention relates to devices for forming ceramic articles by slip casting and can be used in production of tubular articles, for example, from silicon carbide, used as containers for a long period burial of radioactive wastes. Device for forming ceramic articles by slip casting comprises an outer shell made of sheet steel perforated with holes and an internal forming core. Inner surface of the perforated shell is covered with a layer of filtering paper. Square of holes on the perforated shell increases along the height from 35 % on the upper part to 65 % on the lower part, herewith the square of holes is distributed discretely along the perforated shell, herewith the length of each discrete section is equal to 50 mm, and the number of discrete sections is equal to the relative length of the article to the length of a discrete section, on each of which the holes square is increased by a value equal to the difference of the hole square of the lower and the upper parts of the shell, which is related to the number of discrete sections in percentage.EFFECT: higher uniformity of casts, reduced spoilage during formation of ceramic articles of tubular shape by slip casting.1 cl, 1 ex, 1 tbl
 
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