Working of plastics and working of substances in a plastic state in general (B29)

B29            Working of plastics; working of substances in a plastic state in general(19608)

ethod of manufacturing of spherical two-layer products from polyurethane // 2628392
FIELD: technological processes.SUBSTANCE: providing a steel mould for the inner hemisphere, consisting of a base on which a core is mounted that forms the inner surface of the inner hemisphere and a body that forms the outer surface of the inner hemisphere. In this case, a core valve for the inner hemisphere is installed in the core of the steel mould, which includes a Schrader valve made of corrosion-resistant steel. And the mortgage valve is fixed with the fingers and the bar on the body of the mould for the inner hemisphere, and the outer surface of the embedded valve is degreased and covered with an adhesive. Then, by the method of free casting, a polyurethane material is poured into the special hole of the steel mould of the inner hemisphere and an internal hemisphere is made. In the same way, a second inner hemisphere is produced, after which the finished product is removed from the mould and grinded to the desired roughness, glued together into a single inner sphere. In this case, the gluing line is cleaned mechanically, heated to the specified temperature, degreased and then applied to the polyurethane bonding line of the base material of the internal hemispheres. Further, the inner hemispheres are joined along the gluing line and finally cleaned along the gluing line. Then, to obtain a spherical two-layer article, the inner sphere is installed in a steel mould, which consists of a casing and a base. The inner sphere is fixed in a steel casting mould with the help of axes: the upper and lower, the centralizer and the bar. Then the method of free casting through the holes in the centralizer is poured polyurethane into the steel mould, then the finished product is removed from the steel mould and cleaned to the specified roughness.EFFECT: manufacturing of products from polyurethane with the given technical characteristics.4 dwg

Tank manufacturing method // 2628386
FIELD: technological processes.SUBSTANCE: manufacturing method of the open tank from the top, contains the lower wall, the vertical perimetrical wall and vertical inner wall between one part of the perimetrical wall and the other part of the perimetrical wall. At that the perimetrical wall and inner wall form the first and the second compartments inside the tank. According to the method, the melted water-soluble polymer is injected into the mould cavity between the cooperating male and female parts of the mould. Also, there is the first and the second male parts, configured for independent movement and separated by the gap in which the inner wall is formed. At that the first and the second male parts correspond to the first and the second compartments of the moulded tank. In the manufacturing method of the mould parts, the first and the second mould parts and the female part of the mould are formed and polish all surfaces contacting to the surface polymer.EFFECT: provision the simplicity of products manufacturing with reduced wall thickness.12 cl, 7 dwg

Dry fiber material for further drinking smack // 2628374
FIELD: technological processes.SUBSTANCE: invention relates to the field of preforming and resin impregnation of structural composite components. Fibrous material can be cut into strips or strands suitable for use in the Automated Tape Line (ATL) or Automated Fiber Laying (AFP) process. Fibrous material is suitable for the formation of blanks arranged to receive resin by resin impregnation in the manufacture of components from composite structural materials.EFFECT: improved physical and mechanical properties of the resulting articles.20 cl, 5 dwg, 4 tbl, 5 ex

ethod of constructing removable tread for pneumatic tire and removable tread for pneumatic tire obtained according to this method // 2627890
FIELD: automotive engineering.SUBSTANCE: method includes building a computer model of the chosen tread design, selecting target functions and restrictions on input and output variables, numerically solving the problem of optimizing the objective functions by searching for the extreme value, determining the optimal values of the essential parameters of the tread parts and materials for its manufacture and verifying the possibility of achieving the found in the course of solving the problem of optimizing the values of parameters by computer simulation of the technological processes of manufacturing tread parts and its assembly and calculation of dependencies "composition - properties" of a rubber. As a mandatory objective function in the optimisation phase, the absence of a tread protrusion from the tire surface in the process of a movement during the computer simulation of the movement of the tire with the tread in different modes is selected. The removable tread has a lower surface of curvilinear shape approximated by three radii of curvature R1, R2, R3, the value of which decreases from the center of the tread cross section to the periphery in the ratio 1:0.9:0.8.EFFECT: increase the reliability of fixing the removable tread on the treadmill of the tire by optimizing its design for tires of the specified size.6 cl, 2 dwg

ethod of producing article from polymer composite material // 2627882
FIELD: technological processes.SUBSTANCE: laying a pack of layers of fibrous material and fix it with a patch consisting of fasteners, guide rails, and movable stops, sew, remove the patch, remove from the platform of the sewing device, place in a mould, impregnate the binder and polymerise.EFFECT: invention makes it possible to reduce the material capacity of the tooling for piercing by simplifying its design and to provide universality through the possibility of reconfiguring the firmware step without changing the tooling, to increase the processability by carrying out the impregnation operation directly in the mould intended for the polymerization of the article.2 cl, 1 dwg, 1 ex

anagement of contour moulding // 2627859
FIELD: physics.SUBSTANCE: present invention describes methods and apparatus for implementing a reduction process to approach a lens configuration, the previous DMU demonstration being modified for the next iteration. In preferred embodiments, the iterative cycle may be initiated during a reduction process in which one or more of various techniques, techniques, and methods for thickness correction can be implemented.EFFECT: improved accuracy of manufactured products.34 cl, 13 dwg, 7 tbl

ethod and device for optimized bottom contour manufacture on workpiece // 2627858
FIELD: packaging industry.SUBSTANCE: workpiece made in the injection moulding tool is removed in a cooled extraction cup and cooled in the axial part by intensive contact cooling, while the workpiece dome is mostly free of contact cooling due to a special cooled cup circuit. Due to the possible re-heating of this dome, it can be mechanically moulded in a new geometry, preferred for the blowing process, and at the same time, the wall thickness can also be influenced.EFFECT: plastic material better distributed in a bottle can lead to a greater material saving and a high-quality full-fledged bottle bottom.19 cl, 16 dwg

Core form, form for tire and method of tire manufacture // 2627856
FIELD: automotive industry.SUBSTANCE: core form fixed in the tread shape for the tire tread and a hole formation for the stud are described. The core form at one end of the main core portion is provided with an enlarged portion that has a larger outer diameter. The enlarged portion includes a carrier portion formed as a single piece with a main core portion and an outer shell disposed on the outer surface of the carrier portion to determine the maximum outer diameter of the enlarged portion. When a force from the main core portion towards the enlarged portion is applied to the outer shell, the outer shell moves so that the maximum outer diameter decreases.EFFECT: increased quality of products.8 cl, 11 dwg, 2 tbl
ethod of processing polymeric wastes based on polyamide mixture and polyethylene // 2627418
FIELD: chemistry.SUBSTANCE: previously peeled and shredded waste polymer mixtures based on polyamide and polyethylene is processed by melt extrusion at a temperature of 220-250°C. During ultrasonic processing is carried out on the melt with the impact frequency of 20-60 kHz for a time of 0.1-10 seconds, the radiation energy density of from 100 to 5000 Joules per cubic centimeter of extruded melt. The amplitude of the oscillator vibrations is from 1 to 20 microns.EFFECT: provide compositions and articles based on the waste mixture of polyethylene and polyamide with high deformation-strength and processability, delamination exception polymer waste and extrusion phase in the preparation of finished products.9 cl, 14 ex

ultilayered film // 2627410
FIELD: packaging industry.SUBSTANCE: multilayer film comprises a printing layer, a substrate and an adhesive layer therebetween, having two opposite sides attached to the printing layer and the substrate. The printing layer includes a surface coating suitable for printing, and a vacuum thermoplastic material. The surface coating can include a pearlescent coating and have a textured surface that extends into a vacuum thermoplastic material. The weight of the printing layer is 60-285 g/m2. To make the film, the printing layer and the substrate are adhered to opposite sides of the adhesive layer. Apply a coating with pearlescent coating on the surface coating, suitable for printing. The embossed printed layer is realized.EFFECT: easier application of paint, improved image quality and structural integrity.56 cl, 1 dwg

Engineered surface for providing low friction and improved comfort on devices that contact the skin or other external tissue of the user // 2627381
FIELD: textile, paper.SUBSTANCE: device comprises an elastomeric contact area that is structured for direct engagement with the face fabric. The contact area has a working surface which comprises a variety of nonrandom, provisionally produced surface elements made with the possibility to reduce friction and improve comfort for the user. In one version a step between each immediately adjacent pair of surface elements is less than or equal to the indicated maximum value of the step and the height of each of the surface elements is lower than or equal to the indicated maximum value of the height.EFFECT: reduced friction between the product and the human skin.19 cl, 20 dwg, 1 tbl
oisture protection shell corrugated in form of rigid self-supporting shirred sticks and method for obtaining it // 2627202
FIELD: packaging industry.SUBSTANCE: invention relates to a flexible-hose moisture protection shell for food products, corrugated in the form of rigid self-supporting shirred sticks, (co)-extruded from a melt, having a layer in contact with food that has a reduced adhesion to the contents. The shell has on the outer hose surface at least one binding water-soluble or water-dispersible (co) polymer in an amount of at least 10 g/m2, ensuring the adhesive connection between the corrugated folds in the shirred sticks. The shirred sticks additionally have on their outer surface a hydrophobic component reducing the adhesion strength and represented by at least one liquid substantially non-volatile at the room temperature and substantially water-insoluble organic and/or element-organic substance. The total content of the substance on the shell surface is higher than the binder polymer content on the shell surface, and ranges from 50 to 500 mg/m2. The shirred sticks are characterized by the signs: after holding for 24 hours in the free state on a smooth flat surface at 20°C and the relative humidity of 75%, their compressibility in the longitudinal direction under the action of force in 1 N does not exceed 0.5%. The shirred sticks are characterized by the absence of visible elastic bend deformation under the action of its own weight, being cantilevered, and the irreversible kink when the bending moment from 60 to 400 N⋅mm is reached; can be de-corrugated at the temperature of 20°C and RH of 60% with a speed of at least 1.5 m/s without shell ruptures. The method for manufacturing this shell corrugated in the form of rigid self-supporting shirred sticks includes the stage of extruding a flexible-hose shell of synthetic polymers, the stage of orientational drawing and thermofixing, if necessary, and the stage of its corrugating, with applying an aqueous system containing a binder polymer to the outer surface of the shell. On the outer shell surface, a hydrophobic component reducing the adhesion strength is additionally applied. The method comprises the stage of fixing the shape obtained by corrugating the shirred sticks with the fixing equipment; the stage of forced drying of the shirred sticks in the fixed state for 0.5 to 20 minutes, at which the surface temperature of these shirred sticks reaches from 45 to 75°C, and the stage of cooling to the room temperature and removal of the fixing equipment to obtain rigid self-supporting shirred sticks.EFFECT: ensuring filling the shirred sticks on high-performance automatic equipment without the occurrence of technical problems, including defects of their shape and integrity.36 cl, 2 tbl, 5 ex
anufacturing method of isolated tubes with improved properties // 2626895
FIELD: technological processes.SUBSTANCE: method includes a polyurethane system introducing into the annular gap formed between the inner and outer tubes, foaming and allowing the polyurethane system to cure. The polyurethane system comprises at least one isocyanate component (a), at least one polyol mixture (b) comprising a crosslinking agent (b3) constituting glycerin and at least one catalyst. The start time of the polyurethane system is less or equal to the filling time. In this case, the noted catalyst is an amine corresponding to the general formula (I) R1R2N(CR3R4)n-X, where R1, R2, R3, R4, n and X have the following values: R1, R2 independently of one another represent an alkyl residual with 1-8 carbon atoms, R3, R4 independently of each other represent hydrogen atoms, alkyl residuals with 1-8 carbon atoms, n is an integer from 1 to 6, and X is OR5 or NR6R7, where R5 is an alkyl radical with 1-8 carbon atoms or a heteroalkyl residual with 1-8 carbon atoms, R6 independently of the other hydrogen atoms, an alkyl residual with 1-8 carbon atoms, R7 an alkyl residual with 1-8 carbon atoms or a heteroalkyl residual with 1-8 carbon atoms.EFFECT: process of the invention makes it possible to obtain tubes having a reduced total bulk density and low thermal conductivity having thicker insulating layers and to simplify the production of longer pipe sections.11 cl, 2 tbl
Production method of articles from high-tensile ceramics // 2626866
FIELD: metallurgy.SUBSTANCE: production method of the high-tensile ceramics involves the plasma-chemical powder preparation from the tetragonal zirconium oxide and aluminium oxide, its mixing with the organic binder (plasticiser), moulding, removing the binder in the backfill and calcining. The moulding slip is prepared from the mixture of plasma-chemical ultradisperse powder, containing 75-82 wt % of zirconium oxide, 15-20 wt % of aluminium oxide, 3-5 wt % of lithium oxide, including the plasticiser in the amount of 25-60 wt % of the mixture mass. The slip is moulded in the die mould, heated up to 60-85°C, into the blank under the pressure of 0.3-0.6 MPa, are calcinated in the backfill to remove the plasticiser, then the moulded blank is sintered at the temperature 1690-1800°C.EFFECT: ceramic products with the claimed composition and the specified sintering parameters have the bending strength of at least 1215 MPa, the produced ceramic blanks are characterized by the high impact strength, heat resistance and heat stability.1 tbl

Device of fixing element production // 2626853
FIELD: printing industry.SUBSTANCE: device for fixing element manufacturing contains the metal mould for retaining the base material of the fixing element; the element of introduction into the metal mould the liquid rubber, containing the needle filler, containing the group of holes; and the exhaust element, connected to the metal mould to allow the air discharge from it upon the liquid rubber introduction. The group of holes total perimeter ratio to the sum of the inner surface perimeter of the mentioned metal mould and the outer surface of the base material is 1.3 or more and 3.3 or less.EFFECT: improvement of the device.11 cl, 9 dwg, 1 tbl, 3 ex

Connecting element for dissimilar materials, prefabricated structure of dissimilar materials, manufacturing method for prefabricated housings of dissimilar materials // 2626846
FIELD: machine engineering.SUBSTANCE: connecting element comprises of a tubular portion, flange portion, rivetable portion to be deformed, the first connecting part, made of metal, and the second connecting part, made of metal. The tubular portion extends through the first attachable element, made of polymer. The flange portion extends as a flange radially on the outer side of the tubular portion on one axial end of the tubular portion. The portion to be deformed is another axial end side of the tubular portion. In the first connecting part the portion to be deformed fixes the first attachable element between the portion to be deformed and the flange portion, which is curved in such a way that the central area is radially drawn along the axial direction on the outer side to form a bent-up area, when the compression load of pre-specified value or greater is applied to the tubular portion in the axial direction.EFFECT: increased fixity and accuracy of part connection.5 cl, 7 dwg
ethod for turning workpieces from caprolon // 2626639
FIELD: technological processes.SUBSTANCE: in a method including turning workpieces from caprolon, in which the workpiece and the cutting tool are notified of the relative shaping motion, and the feeding is discretely performed, the workpiece from caprolon is pretreated, pre-treatment of the workpiece from caprolon is carried out by heating to the temperature of 150°C with a heating rate of 60°C/hour, followed by holding at this temperature for 20 minutes and cooling at the speed of 30°C/hour to the temperature of 20°C.EFFECT: improving the quality of the surface-treated caprolon.2 dwg

ethod of manufacturing resin protected details from composite material // 2626413
FIELD: technological processes.SUBSTANCE: placing a dry composite preform and a tube to distribute the resin on the moulding element of the device. Placing a line of resin removal in the immediate vicinity of the preform. Packing the preform and the line of resin removal into the vacuum bag. Entering the resin into the preform packed into the bag through the resin distribution tube. Curing the resin-impregnated preform, packed in a bag. Placing the tube to distribute the resin during the manufacture of the preform by inserting the tube into the preform material in the process area.EFFECT: invention makes it possible to reduce labour intensity and material consumption in the manufacture of resin-impregnated composite parts by eliminating the need for the use of auxiliary tools and materials, as well as reducing resin consumption by placing a tube for distributing the resin in the preform material in the process area.3 cl, 2 dwg
ethod of seamless tubular body circumferential additional reinforcement formation, method of reinforced plastic producing (versions) and devices for implementation of indicated methods // 2626039
FIELD: construction.SUBSTANCE: methods of circumferential additional reinforcement formation of seamless tubular body, in particular polymeric and metal-polymer pipes, include the operation of spiral wound of the circumferential reinforcement. Before the spiral wound operation, the circumferential reinforcement is fed to the by-pass roller, which is configured to perform at least one turn on the surface of the by-pass roller co-axially with the spiral wound turn. Also, a device is provided for forming a circumferential reinforcement of a seamless product and a device for obtaining the noted product.EFFECT: improved quality of finished products while reducing the energy intensity of production and simplifying the equipment by means of eliminating the need to convert the material stock to produce a circumferential frame around the longitudinal axis of the product, improved conditions of the band materials use for circumferential reinforcement of composite pipes, because the proposed kinematics of the consumable material feeding for a transverse reinforcement involves the use of only transverse bending without the longitudinal bending of the circumferential reinforcement.19 cl, 6 dwg

Plant and method of forming bead-filler joint for tires // 2625976
FIELD: transportation.SUBSTANCE: method is carried out by means of a plant for tire assembly to superimpose filler belts on the bead to form a bead-filler joint for a green tire. The plant includes a bead holder for retaining the beads. Wherein the plant for tire assembly comprises the first gripping device and the second gripping device for gripping and moving the filler belts in the feeding direction towards the bead. The first gripping device is movable between the first initial position and the first end position, and the second gripping device is movable between the second initial position and the second end position. Wherein the plant for tire assembly contains the first wedge, the second wedge, the third wedge and the fourth wedge. Wherein the first gripping device and the second gripping device are configured to be shifted to the operating position in which the gripping devices grip the filler belts. The wedges are configured to counteract the shifting of the gripping devices when the gripping devices are in one of the initial positions or end positions.EFFECT: simplifying the plant design.33 cl, 25 dwg
Polyethylene terephthalate material for single-layer light- and oxygen-proof packages of milk and dairy products (versions) and method of its manufacture (versions) // 2625870
FIELD: packaging industry.SUBSTANCE: polyethylene terephthalate material for single-layer light and oxygen-proof packages of milk and dairy products contains, %: titanium dioxide 3.5-4.0; nanoclay 0,03-0,05, polyethylene terephthalate - the rest. In another embodiment, the material, in addition to titanium dioxide and nanoclay, contains, wt %: light stabiliser 0.04-0.05; Antioxidant 0.01-0.02; Dispersant 0.125-0.15, polyethylene terephthalate - the rest. As a nanoclay, the material contains an organophilic nanoclay, as a dispersant - wax polyester, modified wax polyester, montanic wax or amide wax, as a light stabiliser - hydroxyphenyltriazine, benzotriazole or benzophenone UV absorber, and as antioxidant - phenolic antioxidant, a mixture of phenolic and phosphite or a mixture of phenolic and thioester antioxidants. To prepare the material according to the invention, the polyethylene terephthalate is first mixed with modifying concentrate in a ratio of 10:1 to 50:1, the mixture is extruded, the resulting melt is cooled to form as polymer strands, which are cut into granules. According to a first version, the modifying concentrate comprises polyethylene terephthalate, titanium dioxide and nanoclay, and in the second version, in addition to these components, the modifying concentrate comprises light stabiliser, antioxidant and dispersant.EFFECT: inventions provide protection of packaged liquid food materials against rapid oxidation or degassing, and from harmful light irradiation in visible and ultraviolet regions.8 cl, 1 dwg, 2 tbl

Drum for manufacturing breaker and tyre tread // 2625862
FIELD: transportation.SUBSTANCE: drum is rotatable about the center line of the drum and comprises a rigid support surface for the tyre component located on the outwardly facing peripheral surface of the drum. The drum comprises two support elements which are spaced apart from each other in a substantially longitudinal direction of the drum. Each of the support elements comprises a tread support surface which faces away from the drum center line and the tread support surfaces are movable radially between a retracted position in which the tread support surface will be located at a rigid support surface or adjacent to a rigid support surface and an elevated position in which the tread support surface will be located in the radially outer position with respect to the rigid support surface.EFFECT: increased quality of products.27 cl, 13 dwg

Device for manufacturing mouldings of granulated plastics // 2625851
FIELD: technological processes.SUBSTANCE: invention relates to the device (01) for manufacturing mouldings of granulated plastics. The device comprises, at least, two moulds made with the possibility of separation along the separation seam parts (03, 53, 63). Herewith the closed parts (03, 53, 63) of the mould form a moulding socket (02, 52) of the mould, inside which (02, 52) granulated plastic can be foamed and/or filled with the foam material for the production of foam mouldings. The mould wall forming the making cavity (02, 52) of the mould, to which the granulated plastic is adhered on the inside, is, at least, formed by a multi-layer structure (06, 56, 65) with a thin inner layer that mechanically rests on the support element.EFFECT: reducing the cycle time for manufacturing mouldings, reducing energy consumption.14 cl, 5 dwg

Device for automated finishing of products made with 3d printing // 2625848
FIELD: technological processes.SUBSTANCE: device for automated finishing of products made with 3D printing, including a working chamber with a smoothing sample placed in it, connected to the reactor with the possibility of feeding and circulating solvent vapor, a storage tank for liquid solvent, and a heater and a refrigerator with the possibility of evaporation and condensation of the solvent, and a control unit. Herewith the heater and the solvent cooler are structurally combined in one unit, which is made in the form of a thermoelectric converter based on the Peltier effect. The working chamber can be provided with a steam supply channel at the top of the working chamber and a circulation channel at the bottom of the working chamber. In the latter, a fan, temperature and steam concentration sensors are installed. The side walls of the reactor can be provided with a heat-insulating coating, and the thermoelectric converter plate-the Peltier element-and the temperature sensor are connected to the bottom of the reactor with one side. And the second side of the Peltier element is connected to the radiator equipped with a fan. In the lower part of the reactor, a supply and evacuation tube is introduced, connected through a reversible metering pump to a container for storing the liquid solvent. The control unit may comprise a microcontroller connected to temperature, concentration, fans and a stepper motor of a reversible metering pump.EFFECT: increasing the degree of automation of the smoothing process and reducing the power consumption.4 cl, 3 dwg

andrel for pipes manufacturing by continuous winding and method for its use // 2625464
FIELD: metallurgy.SUBSTANCE: mandrel for pipes manufacturing by continuous winding comprises sector straps arranged symmetrically to its axis of rotation. Sector straps are made movable relative to each other for rolling each of them by corresponding conjugate spherical shape bodies. Mandrel includes a number of sector straps divisible by three. Each group of three sector straps arranged to reciprocating motion parallel to the longitudinal mandrel axis by spherical bodies corresponding to the group, of the same diameter.EFFECT: simplified design of the mandrel and reduced requirements for treatment cleanliness and manufacturing precision of its constituent parts.2 cl, 1 dwg
ethod of manufacturing panels of sound-absorbing screens // 2625355
FIELD: construction.SUBSTANCE: extruding the mixture of isotactic polypropylene with a m-phenylene-bis-maleimide-based modifier is carried out. Fibrous filler is represented by basalt fiber treated with a water-incompatible silane-containing lubricant. The extrusion product is cooled, cut into granules and dried. The granulate is mixed with isotactic polypropylene and the fibrous filler. The mixture is extruded. The extrusion product is cooled and cut into granules. The dried granulate is mixed with castor oil. The mixture is extruded.EFFECT: improvement of physical and mechanical properties of panels of sound-absorbing screens.1 tbl

Forming reel // 2625238
FIELD: machine engineering.SUBSTANCE: sliding forming reel includes a plurality of swivel arms. Each segment is connected to only one swing arm. Each pivot arm has a first end portion hingedly connected to an outer circumferential surface of the same cylindrical slider mounted outside the reel shaft and has a second end portion pivotally connected to the corresponding segment. The reel comprises a plurality of mechanisms for expanding/clamping the segments formed by the plurality of pivot arms and is expandable/compressible by a plurality of spreading/pressing mechanisms of the segments simultaneously with the movement of the slide in the direction of the reel shaft. A plurality of pivot arms are disposed around the reel shaft at intervals alternately in two rows behind and in front along the reel shaft. The forming reel further comprises a fixing element mounted on the reel shaft and a plurality of guide elements for guiding the second end portion of the pivot arms in the radial direction of the reel shaft on the fixing element. The guide elements are arranged at intervals in the direction of the reel shaft relative to the locking element.EFFECT: increased reel performance.3 cl, 6 dwg

ethod for processing of fiber-plastic composite of rotary laser, blanc of composite shape, and ultraviolet lamp for soliding solid witting with the use of ultraviolet matrix material // 2625237
FIELD: technological processes.SUBSTANCE: according to the method, fiber plastic composite on rotor blade is creates be treated. The local treatment zone of the fiber-plastic composite is prepared. The fiber-matrix composite comprising a hardening under the action of ultraviolet matrix material and the fiber material, is created. The fiber matrix composite is applied to a local treatment zone of fiber plastic composite. Solidification of the matrix material is carried out using ultraviolet radiation.EFFECT: improved physical and mechanical properties of the resulting articles.11 cl, 4 dwg
ethod of producing composite polymer material with higher filler content // 2625232
FIELD: chemistry.SUBSTANCE: mineral filler of 150 - 800 pts. wt. for 100 pts. wt. is added to the polymeric material, while the addition of the filler and mixing with the polymer is carried out using direct addition technology and upstream of the mixing zone for producing the masterbatch. The polymeric material includes a polymer selected from the group consisting of vinyl polymers, vinyl copolymers, acrylic polymers, acrylic copolymers, chlorinated polyethylenes, and mixtures thereof.EFFECT: reducing the time of production and saving energy, producing a high-quality masterbatch.12 ccl, 2 tbl, 8 ex

Semi-automatic machine for forming polymer coating inside axisymmetrical shell // 2625105
FIELD: machine engineering.SUBSTANCE: semi-automatic machine consists of a bed, heat chamber, heating system, driven shaft, end support with a quill, face plates and end rings. The heat chamber is designed as a two-piece horizontal cylinder, split along the generating line and having a fixed bottom part and rotatable upper part with a pneumatic drive. The quill is located in a hollow shaft to move in the axial direction with the help of the pneumatic cylinder and a spring and to rotate together with the hollow shaft. When the axisymmetrical shell rotates, the pneumatic cylinder rod is placed with a clearance to the quill.EFFECT: improved and simplified design.5 cl, 5 dwg
Pultrusion technology with filler from poly(meth)acrylimide penoplast // 2624699
FIELD: chemistry.SUBSTANCE: invention relates in particular to the new pultrusion technology (briefly referred to as Pul-Core technology), by which a fiber-reinforced profile material is produced at a single process step and is simultaneously filled with poly (meth) acrylimide foam filler. At the same time, an extremely durable compound of a poly (meth) acrylimide foam filler with a fiber-reinforced profile material is provided at the same process step.EFFECT: increase the speed of manufacturing products.12 cl, 1 dwg

Breathable film, generated from a renewable complex polyester // 2624328
FIELD: chemistry.SUBSTANCE: film comprises a thermoplastic composition containing rigid renewable polyester, and has a porous structure. To obtain such a structure a thermoplastic composition comprising a revolving polyester and polymeric additive that increases the impact strength, are extruded onto the surface to form a precursor film, wherein the additive that increases the impact strength, may be dispersed as discrete physical domains within a continuous matrix revolving polyester. Thereafter, the precursor film is stretched or drawn at a temperature below the glass transition temperature of the polyester, i.e. using "cold drawn". The deforming force and longitudinal tensile of drawing process cause debonding in the matrix revolving polyester in areas adjacent to the discrete domains, which leads to the formation pore network adjacent to the discrete domains. The absorbent article comprising mentioned film, and a method of forming a breathable film are also described.EFFECT: creating a breathable film formed from a composition revolving polyester having good mechanical properties.20 cl, 3 dwg, 2 tbl, 3 ex

Device for moulding the products from cellulose-filled compositions // 2624320
FIELD: technological processes.SUBSTANCE: device for moulding articles from cellulose-filled compositions, including a forming mould on which a wire mesh is fixed. To ensure a tight connection between the moulding matrix and the base, there is a rubber band. A flange with a grid welded to it is fastened with a screw to the moulding matrix with drainage holes of 1.5-2.0 mm, the distance between which is 5-8 mm. The stem with the reflector is fixed to the adapter cup with the nozzle.EFFECT: increasing the height of the resulting workpiece, eliminating the uneven distribution of particles along the thickness of the workpiece.2 dwg

Alloyed sheets production method // 2624293
FIELD: metallurgy.SUBSTANCE: method of production alloyed sheet product includes fusing of one surface of the stock (10) of strip-shaped sheets (for example, a continuous diaper), where (in which) many sheets are stacked in the foot in contact with supporting element (21), which has parts (27) for the light passage, through which a laser beam (30) can pass. The irradiation of laser beam (30) is carried out with a wavelength that is absorbed by sheets forming sheet stock (10), and causes heat generation by sheets of squeezed stock (10) of strip-shaped sheets through parts (27) for light passage from support element (21). Stock (10) of strip-shaped sheets is divided into parts with simultaneous alloying of cut edges of squeezed plurality of sheets formed by splitting to form a tightly bonded edge (4) (side seam). The edges of the sheets plurality are alloyed in a state where the sheets are stacked on top of each other in the stock and their cut edges are squeezed. Using the method of the invention, a bound sheet product, such as absorbing product. The device for producing alloyed sheet product contains basic components for implementing the operations of the invention method.EFFECT: necessary quality and integrity are provided in alloying sheet edge portions and production absorbing products, which in contact with the user's skin provide a soft texture.15 cl, 26 dwg, 1 tbl

ethod of producing synthetic fuel from weared tires and installation for its implementation // 2624202
FIELD: chemistry.SUBSTANCE: invention describes a process for the production of synthetic fuel from worn-out tires, including feeding worn-out tires to a reactor with heat-insulated walls through a charging device, pyrolysis of worn-out tires, subsequent separation of the solid phase, separation of pyrolysis products into liquid synthetic fuel and a gaseous phase, the pyrolysis process, the removal of the solid phase from the reactor via a discharge device, while the charging and discharging devices are filled with water with the possibility of formation of a water hydraulic shutter, and the liquid synthetic fuel obtained in the separation of the pyrolysis products is burned in a small amount in a reactor and the remaining part of the liquid synthetic fuel is sent to external consumers, characterized in that the reactor is provided with an external and internal circuit, pyrolysis is carried out at a small excess pressure in the internal circuit of the reactor, the pyrolysis process is maintained by the heat from the combustion of uncondensed pyrolysis gas and a mixture of liquid diesel and synthetic fuel in the external circuit of the reactor; after the pyrolysis process is completed, the solid carbonaceous residue in the internal circuit of the reactor and the smoke gases in the flue gas post combustion chamber by burning a mixture of liquid and synthetic diesel fuel with excess coli ETS air, and in case the reactor depressurization emergency or the inner contour of the reactor is fed inert gas - nitrogen. The process of loading worn-out tires and unloading unburned solid residues from the reactor is carried out at the expense of natural gravity without the use of conveyors with electric motors. Also, a plant for producing synthetic fuel from worn-out tires is described.EFFECT: increasing the reliability and safety of the reactor, increasing the ecological purity of the pyrolysis process, reducing the power consumption of preparation, loading tires and unloading unburned solid residue.2 cl, 1 dwg

anufacturing method of celled honeycomb filler from composite materials // 2623781
FIELD: construction.SUBSTANCE: prepreg is laid up between the forming elements and it is formed under pressure with subsequent curing. The forming element is made of elastic poroelastic material with a Poisson ratio close to 0.5. Its volume must be sufficient to fill the internal volume of the formed cell. The method allows to form simultaneously layers of two-, three-layer panels and produce a celled filler of arbitrary shape with variable cell size.EFFECT: creation of the maximum contact area between the bonded prepreg surfaces and uniform pressure on the formed cell in all directions.4 cl, 3 dwg

ethod of manufacturing panel with stiffening ribs of polymer composite materials // 2623773
FIELD: technological processes.SUBSTANCE: forming a partially cured panel of polymeric composite materials (PCM) and forming at least two preforms in the form of an L-shaped profile by laying a layer of sacrificial tissue on the surface of the mould, and then several layers of carbonaceous material. The blanks are placed in pairs on the surface of the panel to form at least one preform of the stiffener in the form of a T-shaped profile. A layer of sacrificial fabric is laid on top of the panel with a stiffening preform placed on top of it, on which a distribution grid connected to the binder feed line is placed on top of the stiffener preform. In the depressions of the stiffener preform formed by the internal corners of the T-shaped profile, crimp elements are placed on top of the distribution grid. The resulting structure is covered with two layers of a vacuum film, with each layer forming an appropriate vacuum bag, connected by means of its vacuum line to its corresponding pump, and a vacuum is created in each of the vacuum bags formed. Afterwards, the thermosetting binder is fed and impregnated with the preform of the stiffener and then it is cured. The panel is formed on the basis of a fabric of carbon fiber impregnated with a thermosetting binder by the method of vacuum infusion and pre-determined according to a given regime.EFFECT: simplification of the technology of manufacturing panels with stiffeners made of polymer composite materials and improving the quality of the resulting parts.4 cl, 3 dwg

ethod for producing three-dimensional object of composite material // 2623772
FIELD: physics.SUBSTANCE: object is made of the composite material, wherein the said object is relatively strong and light and has a complicated three-dimensional configuration. The method comprises a connection of a number of the moulded material sections, each having a laminated front surface to form an object, which bond the inner and outer laminating layers together after lamination to form a group of the structural elements. The method provides the further advantage, that the object can be formed without the form use.EFFECT: creating light and strong three-dimensional objects made of the composite material.18 cl, 6 dwg, 1 tbl, 3 ex

ethod of heating raw tape for its continuous volcanization in calender // 2623563
FIELD: technological processes.SUBSTANCE: method for vulcanizing a raw rubber tape involves continuous vulcanization on a horizontally arranged calender. The outer surface of the calender is heated by infrared radiation, maintaining the temperature of 250°C, and directing it directly to the surface between the pressure cylinders, placing the three-phase infrared heater (IRH) between them and continuously measuring the surface temperature of the calender with a pyrometer at the top of its end. Before vulcanization, the raw tape is heated by infrared radiation with a single-phase IRH, maintaining the temperature of 250°C, directing both flat surfaces of the tape and continuously measuring the temperature of the flat surface of the raw tape contacting the heated calender surface, wherein the three-phase IRH is made of linear radiators of limited length in reflectors that are mounted along the circumference of the calender without gaps, and the single-phase IRH is made of lamps FF-500 that are placed without gaps between themselves over the tape and under the tape with a uniform gap with respect to it. Each single-phase and three-phase IRH are electrically connected to their controlled output of the APHT, and their control inputs are connected to the outputs of the corresponding pyrometers, which are fixedly placed in the first quarter on top of the end face thickness of the calender cylindrical surface.EFFECT: reducing the energy consumption of heating and increasing the productivity of the vulcanization process.7 dwg
Nucleied polypropylene composition for containers // 2623430
FIELD: packaging industry.SUBSTANCE: composition comprises from 95.0 to 99.25 wt % of propylene copolymer (A) with one or more olefin comonomers in an amount of 0.1 wt % to 3.0 wt % based on the total weight of the polypropylene and the nucleating agent composition (B) which is a polymeric nucleating agent. The polypropylene composition has a tensile modulus at least 1300 MPa according to ISO 527-1:1996 and ISO 527-2:1996 for the test specimen moulded ISO 527-2: 1996 Type 1A, injection moulding was carried out in accordance with ISO 1873-2:2007. In this case, the copolymer of propylene (A) has a melt flow index determined in accordance with ISO 1133 at 230°C and under load 2.16 kg, In the range from 25 g/10 min to 200 g/10 min.EFFECT: combination of the above properties of the polypropylene composition provides castable container according to the invention an optimum balance of impact strength/stiffness, increased impact properties as well as excellent strength and good organoleptic properties.18 cl, 7 tbl
ethod for manufacturing silicone-containing contact lens with reduced diluent amount // 2623270
FIELD: physics.SUBSTANCE: invention relates to the method of manufacturing a contact lens, comprising the steps of: (i) adding the reactive ingredients into the casting mould, wherein the reactive components comprise (a), at least, one hydroxy-containing silicone component having an average molecular weight of about 200 to about 15,000 g/mol, and (b), at least, one polyethylene glycol with monoester and methacrylate terminal groups, having an average molecular weight of about 200 to about 10 000 g/mol; (ii) curing the reactive components within the mould to form a contact lens; and (iii) removing the contact lens from the said casting mould.EFFECT: reducing the mechanical damage while manufacturing contact lenses.19 cl, 14 tbl, 14 ex

ethod of manufacture of pneumatic tire // 2623269
FIELD: automotive engineering.SUBSTANCE: method for manufacturing a pneumatic tire includes the step of forming its carcass comprising of a rubberized portion of a textile or metal cord and a calendered rubber layer disposed on the sealing layer and a subsequent step of assembling the formed carcass, tread and a breaker to form a target product. During the formation of the carcass of the tire, before being placed on the sealing layer of the rubber layer, the interlayer is irradiated from both sides by an electron beam using electrons with an energy selected in the range from 400 keV to 1 MeV to reach a dose obtained by the surface of the side of the rubber layer subjected to irradiation, in the range from 10 to 80 kGy.EFFECT: ensuring recycling of the rubber interlayer while reducing energy consumption.3 cl, 2 dwg, 4 ex, 2 tbl

ethod of plastic pipe production // 2623266
FIELD: technological processes.SUBSTANCE: according to the method, plastic pipe material is fed onto the mandrel which diameter meets the inner diameter of the pipe. The material is fed in the form of continuous flow which is transferred on the mandrel, after deposition on the mandrel, along an actually helical line sidewards within the mould mounted on the mandrel. The plastic tube is formed from the material tapes and molten plastic which is fed into the gaps between the tapes. Material flow at the mandrel is directed sidewards by circular and inclined plate at the end of the mould. The front part of the plastic tube is pressed and welded to the initial pipe which is used to move this pipe sidewards relative to the mandrel during the process of its production.EFFECT: improved physical and mechanical properties of the resulting articles.8 cl, 3 dwg

Single screw extruder with grooved supply system // 2623262
FIELD: machine engineering.SUBSTANCE: single screw extruder with a grooved supply system, a cylinder and a polygonal screw mounted in the cylinder, has a softening zone, a major plasticization zone, and a secondary plasticization zone. In the plasticization main zone area, there are, at least, two rotor paths, respectively, with a wave-like variation in the depth of the screw path and the wave crests offset from each other. And in the inner cylinder wall in the plasticization main zone area, there is provided a groove extending in the longitudinal direction. At the same time, in the plasticization main zone area in the auger flange, a cutout is made before each wave crest, and the resulting cutout height corresponds to the depth of the screw, or the next wave crest respectively.EFFECT: improving the melting effect while increasing productivity, reducing the melting point and improving the pumping capacity.6 cl, 3 dwg
Device for changing direction of chain of dies with running rollers for transporting moving material web // 2623257
FIELD: transportation.SUBSTANCE: device has the running rollers (2) for transporting the moving material web, the sprocket wheel (4) and the guide rail (5) equipped with at least two running tracks (6.1, 6.2) for the running rollers (2) of the dies (1). The two running tracks (6.1, 6.2) are arranged respectively at two sides of the guide rail (5), turned away from each other, parallel to the rotation axis of the sprocket wheel (4). The guide rail (5) has at least one curved portion (5.2) for changing the chain direction. In the area of the curved section (5.2) of the guide rail (5), there are connecting elements (8, 9, 10) through which the guide rail (5) is connected to the direction change device (3). Several connecting elements (8, 9, 10) are made so that at least part of the curved portion (5.2) of the guide rail (5) is capable of radial displacement relative to the sprocket wheel (4).EFFECT: providing the direction change of the chain of dies in the radial or the tangential direction and the reduction of various disturbances in the direction change area.9 cl, 4 dwg

Production of propeller blade from composite material // 2623254
FIELD: technological processes.SUBSTANCE: spar containing the blade core is formed. A blade blank comprising a fiber cloth is formed. In this case, the fabric has a separation zone where it is divided into two overlapping encasements, the separation zone comprises a place for receiving the blade core. The blade blank is placed in the equipment containing the female mould of the blank. The separation zone is opened by separating the encasements. The spar is installed by inserting the blade core into the separation zone. The separation zones are closed by means of a denser junction of the encasements. The resin is injected into the blade blank. The resin is polymerized and the blade blank is machined. The method includes the step of creating trackers that represent reference marks at certain positions on the blade blank when forming a blade blank. The step of forming the blade blank in a certain position in the female mould after placement by aligning the trackers with the target positions set in the equipment. And also the step of pushing the blade blank into the dented form outside the separation zone before opening the separation zone and before installing the spar.EFFECT: improved manufacturing quality of the propelled blade, formed from two parts of different materials.15 cl, 11 dwg

Supporting bend for thin-wall shells from composite materials and method of its manufacture // 2623054
FIELD: construction.SUBSTANCE: reinforcing frame is a stiffener with contact surfaces in the form of a reinforced shell along the outer diameter and with an annular thickening along the inside. In this case, the stiffener is made by a flat or convex-concave double addition of the calculated number of layers of tissue with an inflection in the thickening zone and dilution of each half of the layers to the sides with the formation of developed contact surfaces. The circular thickening is formed by filling the calculated amount of a thread of a structural volume in the tissue inflection zone.EFFECT: increase in mass-strength characteristics.2 cl, 3 dwg

Equipment for forming products of polymer composite materials and method of its manufacture // 2622924
FIELD: technological processes.SUBSTANCE: equipment for forming products of polymer composite materials contains a supporting structure and a mould made of polymer composite material placed on it. At least one stiffening rib is located on the surface of the mould on the side of the supporting structure, which is made in the form of an elongated foam glass element coated with a layer of polymer composite material onto the mould surface. In this case, the shape and the layer of the polymer composite material, covering the stiffening rib, are made of layers of carbon reinforcing fiber impregnated with a low viscosity epoxy binder with an amine hardener.EFFECT: improved quality of products manufactured from polymer composite materials.12 cl, 3 dwg

Absorbent product, containing the porous polyolefin film // 2622830
FIELD: personal care items.SUBSTANCE: invention relates to the absorbent product, containing the absorbent element, disposed between the backing and the top layer, wherein the absorbent product contains a film, formed from the thermoplastic composition, which contains a continuous phase, that includes the polyolefin matrix polymer and the nanoinclusions additive, dispersed in the continuous phase in the form of discrete domains, where the porous network is defined in the composition, which includes a plurality of nanopores with the average cross-section size is about 800 nanometers or less.EFFECT: as a result of the porous network formation, the molecular orientation occurs, leading to strain hardening, which increases the mechanical strength.40 cl, 8 ex, 4 dwg

achine for producing rolls of pre-stretched extendable film // 2622429
FIELD: machine engineering.SUBSTANCE: machine comprises a pre-stretching unit (10) of the film (F) and a winding unit (100) of the film on the roll, having a series of rollers, on which the advancing film is partially wound. The pre-stretching unit (10) comprises, at least, the first pre-stretching roller (12), an auxiliary pre-stretching roller (13) pressed against the first roller (12), with the film located therebetween, and the second pre-stretching roller (14), located in sequence. The latter has a speed greater than the speed of the first roller (12), for the implementation of film pre-stretching. The winding unit comprises a winding roller (104) for winding the pre-stretched film. The pre-stretching unit (10) further comprises a strain relief roller (17) located downstream of the second pre-stretching roller (14). The roller (17) has a speed less than the speed of the second pre-stretching roller (14) and greater than the speed of the winding roller (104).EFFECT: ensuring the high quality of the pre-stretched film.14 cl, 11 dwg