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 waveguide microwave devices and elements on 3d printer by method of fused deposition modelling of thread composite abs plastic // 2642791
FIELD: radio engineering, communication.SUBSTANCE: method of manufacturing waveguide devices and microwave elements is that all parts are fully made by an additive technology - 3D printing by the fused deposition modelling of composite carbon-containing thermoplastic, and to facilitate applying the current-conducting metal coating onto the working surfaces a housing of a waveguide is separately made. The channel of the housing consists of three walls (housing) and flanges, and a cover. Then a current-conducting metal coating is applied to the working surface of the parts and then assembled into a single structure.EFFECT: reduction of weight and size characteristics, reduction of labour intensity and time of manufacture while maintaining the technical characteristics, reduction of production cost.2 dwg

Technological plates, manufactured on the basis of fused deposition modeling, for forming and replicating of objects // 2642654
FIELD: printing industry.SUBSTANCE: manufacturing method of 3D-article (10), comprising the outer layer (210) and the supporting structure (220) with cavities (230). The outer layer (210) at least partially covers the supporting structure (220). At that the method includes: (a) 3D-print stage, including 3D-printing by fused deposition modeling (FDM) with the material (201) for 3D-printing of the outer layer (210) and the supporting structure (220), and at least partially filling of the cavities (230) with the filler (204). And also (b) the post-processing stage, including the post-processing of at least the part of the outer layer (210) to reduce the surface roughness.EFFECT: increased quality of products.13 cl, 7 dwg

Tubular pack produced by butt welding // 2642043
FIELD: metallurgy.SUBSTANCE: element is applied to the inner surface of the package, at that its cross-section is defined by the width I and height h. According to the invention the package is characterised in that said dimensions comply with the following conditions: height h equals or exceeds thickness e, and the ratio (I⋅e)/h2 is selected in the range from 1 to 10. Such pack design makes the seam area non-deformable in a direction perpendicular to the welded ends of the film, substantially without changing the flexibility of the seam area in a direction tangential with respect to the welded ends.EFFECT: improved strength.16 cl, 8 dwg

ethod of manufacturing parts of thermoplastic film by deep drawing // 2641934
FIELD: technological processes.SUBSTANCE: flat film fragment is used on one or both sides. It is either coated, or covered by printing or metallization. The film fragment is placed on a frame. Only the edge portions of the film fragment are placed on the frame. The film fragment is introduced in the heating zone and heated there, so that at least one side of the entire area of the film or the predominant area of the film has a film surface temperature exceeding the Vicat softening temperature V/50 by an amount ranging from 10 to 65°C. This heating is non-contact. Then the heated film fragment is quickly fed into the moulding area, and is treated by a fluid, transferring the pressure, which is under the pressure of more than 20 bar and isostatic moulding is performed to shape a target part, made by deep drawing, over a period of time less than 5 seconds.EFFECT: exact location of the decorative or functional design.28 cl, 3 dwg, 2 tbl
ethod for producing polyurethane tire with improved shock-absorbing properties and device for its implementation // 2641932
FIELD: machine engineering.SUBSTANCE: according to the method, the mould is set horizontally. Hollow spherical elements are filled into the mould cavity. The mould is closed. The mould drainage hole is sealed. Non-polymerised polyurethane is supplied under pressure, and air is evacuated. After partial filling of the mould cavity with non-polymerised polyurethane, the mould is subjected to vibrations. After vibration is stopped, the drainage hole is opened, the mould is moved to vertical position and rotated about its axis. After polyurethane polymerisation, the mould is stopped and returned to the horizontal position, non-polymerised polyurethane is supplied under pressure to the non-filled part of the mould cavity adjacent to the rim for filling the cavity.EFFECT: higher physical and mechanical properties of produced articles.2 cl, 1 dwg

ethod for production of turbomachnine blade tang made of composite and blade root made by method // 2641927
FIELD: machine engineering.SUBSTANCE: blade tang of the turbomachine is made of composite and comprises a fibrous rigidity element densified by a matrix. In this case, a central fibre strip and two outer fibre strips are made of three sets of layers of threads joined together by three-dimensional weaving. The fibre strips extending in the same direction corresponding to the longitudinal direction of the blade tang under production, and the threads of plurality of layers of threads are not connected between different fibre strips. Then two outer strips are passed through the central strip with crossing of two outer strips inside the central strips. Removal is performed by cutting parts of two outer strips which are external to centre strip to form fibrous blank of the blade tang. A fibrous preform is formed to create a fibre preform comprising a main portion forming a preform of the blade tang as a single piece with two second portions forming preforms of supports. The fibre preform is sealed by the matrix to create a composite blade tang composite comprising a fibre stiffness element formed by the preform and the densified matrix.EFFECT: elimination of additional inserts and stresses arising around them, increase of blade tang strength.13 cl, 3 dwg

Improved methods of creating an electrofusion connection // 2641925
FIELD: machine engineering.SUBSTANCE: group of inventions relates to methods for creating electrofusion compounds providing continuity and reproducibility of welds between electrofusion fitting and inner coating of a tube (or a separate pipe). The electrofusion fitting for connecting the sections of the tube having the inner coating has heating elements for creating at least one weld connection between the electrofusion fitting and inner coating of a tube, however, prior to the welding stage, the electrofusion fitting is heated and expanded to provide contact with the inner coating of the tube. Preheating of the electrofusion fitting also provides predetermined initial temperature for the fitting and the inner coating.EFFECT: increased reliability of fusion cycle and elimination of need for clamps or support frames to support the electrofusion fitting at the work area, thereby the duration of cycles is shortened, and level of complexity is decreased.25 cl, 4 dwg
Electrically conductive metal-filled polymer compound for 3d-printing (versions) // 2641921
FIELD: electricity.SUBSTANCE: electrically conductive polymer composition contains syndiotactic 1,2-polybutadiene (1,2-SPB) in the amount of 60-50 wt % as a polymeric base and a solder of Sn-63 or lead is the rest as a conductive metal filler. The version of composition contains syndiotactic 1,2-SPB in the amount of 70-50 wt % by as polymeric base, and as a conductive metallic filler: copper or aluminium for the rest.EFFECT: increase in electrical conductivity and melt flow index for polymer composites intended for 3D printing.2 cl, 1 tbl, 20 ex
ethod for moulding article by direct of premix pressing with use of reinforcing element // 2641918
FIELD: machine engineering.SUBSTANCE: according to the method, the reinforcing element is preliminarily installed on a platform of the mould lower portion contacting with the central portion of the reinforcing element lower surface. The upper surface, the ends and edges of the reinforcing element lower surface are left open for contacting the premix. The premix is loaded into the lower mould portion and the upper and lower mould portions are closed. The reinforcement element is compressed.EFFECT: increased strength of produced article.5 cl, 5 dwg

ethods for manufacturing and application of ophthalmological devices with power supply, with energy saving mode // 2641917
FIELD: medicine.SUBSTANCE: invention describes a method for manufacture and application of an ophthalmic device with power supply with an integrated energy saving mode. The method comprises the step of integrating an insert with a medium into an ophthalmic device with power supply, the medium insert comprising an electrical circuit including an electric power source, an electric load, and the first switching mechanism. The first switching mechanism has many modes, including the first mode, transferring the ophthalmologic device to the specified low-power state. The first switching mechanism introduces resistance to limit current passage through the electrical load when the first saving mode and the operating mode are in effect. The first switching mechanism provides an increase in current passage through the electrical load when the operating mode is active. The method comprises the step of first switching mechanism transfer to the first saving mode.EFFECT: decreased power consumption in ophthalmic devices.22 cl, 7 dwg

ethod of manufacture of composite structural element, composite structural element and wind-driven power plant // 2641867
FIELD: power industry.SUBSTANCE: method of manufacture of composite structural element, in particular for wind-driven power plant, which includes a lot of, at least, two-component composite shaped parts, wherein the first component is formed from the core shaping material and the second component is formed as a part of the connecting layer, the shaping core material is formed, in the prism shape, in the form of a prismatic body with a polygonal base. The polygon of the base has a basis and an angle to the basis, which is from 30° up to 60°, and connect a set of prismatic bodies, and on the joined sides, the functional orientation of the connecting layers is performed in such a manner that the connecting layer passes at an angle 30-60° to the basis surface of at least one of the prisms adjacent to each other. The second component is formed as a woven mat, the woven mat is placed between the first and the second prismatic bodies and connected with the shaping core of the prismatic bodies and the core shaping material is being obtained by extrusion. The composite structural element is connected by a hot joint.EFFECT: increase bending and shear stiffness.14 cl, 8 dwg
Sheet thermoplastic textolites manufacturing plant // 2641756
FIELD: machine engineering.SUBSTANCE: sheet thermoplastic textolites manufacturing plant includes the feeding mechanism, the moulding unit, the mechanism of the sheet thermoplastics moving and the cutting device. The forming unit contains the upper and the lower plates with the integral heating elements installed therein. The heating elements are installed in each plate forming three temperature areas substantially arranged in the direction of the workpiece package travel: the preheating area, the moulding area and the cooling area. The preheating area is made at least 1/6 of the plate length, the moulding area is at least 1/6 of the plate length and the cooling area is at least 1/4 of the plate length. The preheating area is rectilinearly expanding to the moulding area, the latter has the temperature part, rectilinearly expanding and coming into the section constant over the width of the latter, and the separating thermal layer is made between the cooling area, made constant across the width of the plate, and the forming area.EFFECT: simplification of the plant design and increasing of the sheet thermoplastic textolite uniformity.1 cl

Tube, obtained by extrusion blow moulding // 2641746
FIELD: technological processes.SUBSTANCE: tube is made by extrusion blow moulding and filled or can be filled through its rear end. The tube has a casing, an arm and a neck, which are made in one piece by means of extrusion blow moulding. The tube has a layer with a high LLDPE content of 50 to 95 wt %. The average thickness of the tube wall in the casing area is from 0.3 to 0.85 mm. The method for manufacturing a tube includes extruding a tubular blank and blowing it to form a bottle-like product.EFFECT: ensuring the production of a tube optimized for transparency and shape recovery effect.21 cl, 2 dwg

ethod of producing ceramic products of complex volume form // 2641683
FIELD: technological processes.SUBSTANCE: method includes manufacture of a matrix, casting of a product by means of the matrix and heat treatment of the produced product. A 3D model is produced from the thermoplastic mass by additive moulding, immersed in a silicone mass to make a silicone shell, which is the product matrix. A heated ceramic slip is cast into the silicone matrix. The heat treatment of the product includes: preliminary sintering for 6 hours at a temperature of 300oC with holding for 1 hour, then the heating is continued up to 1100oC for 11 hours with holding for an hour, cooling and machining, after which the final sintering is carried out at 1450-1700oC with holding for 1 hour in air for VK-95 and in vacuum for VK-94 to produce a ceramic product.EFFECT: producing ceramic products of a complex volume form with high technical and functional characteristics.4 cl, 2 dwg, 3 ex
ethod of manufacture of heating pipe for pipeline, heating pipe for pipeline and its application // 2641412
FIELD: heating system.SUBSTANCE: manufacture comprises extruding a two-layer pipe with an electrical insulating inner layer and a first electrically conductive layer. Then, at least two current conductors are spirally wound around the first electrically conductive layer. The first electrically conductive layer with wound current conductors is heated so that it softens on the surface, and the conductors are pressed and closed. Further, by extrusion, a second layer is applied from the electrically conductive moulding material, wherein the thickness of this layer is from 0.1 to 1.5 mm. The current conductors are sealed in such a way that the metal is surrounded and wetted by the melt between the two electrically conductive layers. On top of the layers, an outer shell of electrically insulating plastic material is applied.EFFECT: effectively prevents the reduction of heating power during the service life.10 cl, 3 dwg

ethod for continuous curing tape of raw rubber or gum // 2641280
FIELD: chemistry.SUBSTANCE: according to the method, a raw tape is converted into the finished one continuously moving and clamping it from above to the heated, smooth, slippery and level surface of the curved arc of a stationary table heated to 240°C, by means of a strong, endless mesh embracing and stretched over two parallel clamping cylinders. Each of the cylinders is located horizontally and, respectively, on both lengthwise ends of the table with the possibility of rotation. The mesh width corresponds to the tape width. The opposite surface of the table is heated by directional focused radiation in the near infrared region, controlling the temperature of the table surface with the tape automatically. The tape is clamped to the table with a force of, at least, 50 tons, which is evenly distributed over the surface of the table under the tape. One of the clamping cylinders is provided with a rotary drive.EFFECT: increasing the curing process speed.2 cl, 8 dwg

ethod of manufacturing substantially cup-shaped part from fibreglass // 2641135
FIELD: technological processes.SUBSTANCE: workpiece is laid in a forming device, with an upper matrix and a lower matrix, and then the forming device is closed to form a workpiece. And the workpiece consists of fibrous material impregnated with a matrix material - prepreg. Herewith the workpiece is preheated by means of a heating device, and the shaping surface of the forming device with the preform is cooled to a temperature below about 10°C and/or its cooled state is pre-provided by the cooling device. Herewith after forming the workpiece, it is removed from the forming device and placed in a curing device, in which both the thermal curing and compaction of the workpiece are simultaneously performed.EFFECT: increasing the flexibility in moulding the polymer part to be manufactured.14 cl, 4 dwg
Electrically conductive metal-filled polymer compound for 3d-printing (versions) // 2641134
FIELD: electricity.SUBSTANCE: electrically conductive polymer compound as a polymer base contains a polymer of styrene-butadiene-styrene (SBS) in the amount of 10 wt %, as a conductive metal filler - solder Sn-63 or lead in amount of 40 wt %, and as a plasticiser - oil OP-6s in amount of 50 wt %. Version of compound as polymer base contains the SBS in the amount of 10-20 wt %, as conductive metal filler - copper or aluminium in the amount of 30-40 wt %, and as a plasticiser - oil OP-6s in the amount of 50 wt %.EFFECT: increase in electrical conductivity and melt flow index for polymer composites intended for 3D printing.2 cl, 1 tbl, 16 ex

Hard reinforcement ring and method for tyre curing using it // 2641131
FIELD: technological processes.SUBSTANCE: method is implemented by applying a hard reinforcement ring, serving as a cylindrical ring. The ring, when the uncured tire is placed in the mould and the diaphragm is pressed from the inside of the uncured tire to its outer side in the radial direction of the tire to perform the mould curing, is located between the inner circular surface of the uncured tire area, corresponding to the tread portion, and the outer circular surface of the diaphragm area, corresponding to the tread portion. The stress necessary to cause stretch elongation of a predetermined value in the circumferential direction of the ring is greater than the stress necessary to cause compression deformation of a predetermined value in the circumferential direction.EFFECT: increase in the accuracy of the dimensions of the pneumatic tire and prevention of performance degradation and limiting the range of possible solutions in the design.23 cl, 29 dwg, 2 tbl, 7 ex

ethod of foamed moulded products manufacturing // 2641129
FIELD: technological processes.SUBSTANCE: invention relates to a process for the manufacture of foam moulded articles comprising the steps of: A) providing a mould and B) introducing the foaming reaction mixture into a mould with variable injection pressure, wherein the exit velocity of the foaming reaction mixture introduced in step B) is ≥ 1 m/s - ≤ 5 m/s, and the injection pressure in step B) decreases in time dynamics, and the foaming reaction mixture has an experimentally determined setting time at a temperature of 20°C, which is 20 ≥ s - ≤ 60 s. The invention also relates to a refrigerator, a freezer and a combination of a refrigerator and a freezer compartment that comprise a foamed moulded article, which in particular is a component of the casing.EFFECT: more uniform foam density distribution and no voids.19 cl, 5 dwg, 3 tbl, 9 ex

Device for application of multi-layer coating to optical flat by centrifuging method // 2641123
FIELD: machine engineering.SUBSTANCE: device for application of a coating by centrifuging method comprises a coating device tank, the structure of which is designed so that it collects excess coating material that is dropped from the optical flat onto which it is applied. The device also includes a rotatable holder, the structure of which is designed so that it receives and rotates the optical flat contained in the tank of the coating device. In addition, the device comprises several coating tanks, each comprising a coating (material) composition for selectively coating an optical flat. Also, the device comprises an indexable platform with coating tanks, comprising a plurality of tanks and moving the selected coating tank in stages to a dispensing position above the tank of the coating device. The device for application of the coating by centrifuging method may comprise a tank configured to collect excess coating material discarded from the coated optical flat. Each coating tank comprises a coating material for selectively coating the optical flat. Each coating tank comprises an elongated barrel and a movable piston for discharging the coating material from the coating tank, and each tank with the coating composition discharges the coating material through a valveless outlet located at the outer end of the barrel. The indexed platform on which the coating tanks are located is arranged to move the selected coating tank to a dispensing position that is located above the tank of the coating device. The platform with the coating tanks further comprises a dispenser that is located in the dispensing position. The spraying device is adapted to engage in a dispensing position with a movable piston of a selected coating tank to release a predetermined amount of coating material from the selected coating tank. In addition, the device may comprise at least one curing unit. Each curing unit is independently configured to selectively and at least partially cure at least one coating material applied to the optical substrate. Each curing unit independently comprises at least one of the following: a thermal curing unit; UV curing unit; an infrared curing unit and combinations of at least two of the units.EFFECT: ensuring the possibility of using a variety of different coating compositions.34 cl, 6 dwg
ethod for obtaining polyurethane foam with emulsified foaming agent // 2641119
FIELD: chemistry.SUBSTANCE: method for obtaining polyurethane foam comprises the steps of: supplying an isocyanate-reactive component A comprising a polyol component A1 which further comprises a physical foaming agent T; mixing at least the isocyanate-reactive component A and the isocyanate component B, thereby obtaining a polyurethane reactive mixture; feeding the polyurethane reactive mixture into the cavity (11) and lowering the pressure inside the cavity (11) to a pressure lower than the ambient pressure. The physical foaming agent T is present in the isocyanate-reactive component A in the form of an emulsion. The polyol component A1 constitutes a continuous phase, and the drops of the physical foaming agent T are a dispersed phase emulsion. In the latter, the average drop size of the physical foaming agent T is from ≥0.1 mcm up to ≤20 mcm. The drop size is determined by means of an optical microscope operating in a light-field translucent mode.EFFECT: stability of foam resistance to its phase separation during storage or under shear.19 cl, 5 dwg, 3 tbl

Layer applying device for 3d-printer and a method for applying two layers of the structural material in the form of particles // 2641115
FIELD: physics.SUBSTANCE: invention refers to the layer applying system for the three-dimensional printer, a 3D printer and a method for applying two layers of the structural material in the form of particles. The layer applying system (1) for the 3D printer comprises a layer applying device (3) with a container (17) defining an internal cavity for receiving a particulate structural material leading to a dispensing aperture of the structural material in the form of particles. A smoothing element (15a) forms a downward-smoothing surface and is configured to smooth the structural material issued from the openings using the smoothing surface thereby levelling and/or compacting the material issued in the form of particles. The layer applying system (1) further comprises an adjusting device (13) configured to adjust the inclination angle of the smoothing surface (15a) in an adjustable manner.EFFECT: improving the quality of manufactured products.23 cl, 23 dwg

Glass fibre composition // 2641050
FIELD: chemistry.SUBSTANCE: invention relates to glass fibre, which can be used to reinforce composite materials for the production of windmill blades, pressure vessels, components in the automotive, engineering, aerospace, and the like. The glass fibre composition contains the following oxides, wt %: SiO2 57.5-59.5, Al2O3 17.0-20.0, CaO 11.0-13.5, MgO 8.5-12.5, where the sum of Na2O, K2O, TiO2 is at least 0.1 wt % and Li2O≤ 2.0 wt %. All amounts are expressed in terms of weight % with respect to the total weight of the composition. The temperature difference ΔT, defined as the difference between the temperature T3, at which the composition has a viscosity of 103 poise, and liquidus temperature Tliq, is at least 50°C, wherein Tliq is not more than 1233°C.EFFECT: combination of good mechanical and thermal properties of fibres with cost-effective processing temperatures of the compositions.12 cl, 1 tbl, 4 dwg

Power stress boxes and methods to obtain them // 2641026
FIELD: airpower.SUBSTANCE: power stress box contains upper and lower composite complex sandwich panels. Panels include sheet casings forming a sandwich structure with one or more aggregates and adjacent dense packages oriented in the axial direction. The stress box additionally contains plenty spars. Each spar has a wall and wall fastening elements and the long side of the spar is located in the axial direction. Plenty spars are connected to the panels with wall fastening elements located near the dense packages. Sheet casings are made with the ability to withstand the main torsional and compressive loads under shear and inessential axial loading. Dense packages are designed to withstand the entire substantial bend of box under axial tensile and compressive loading. The air vehicle comprises a power stress box. The method is for producing bonded stress box for an air vehicle.EFFECT: improved composite bonded stress boxes for an air vehicle.25 cl, 13 dwg

ould for vulcanizing winter and all-season tires of vehicles, method for manufacturing mould for vulcanization and pneumatic vehicle tire // 2640786
FIELD: transportation.SUBSTANCE: mould has, on the inside, moulding surfaces (3) with a negative tread profile, comprising elements (7) of the negative profile for moulding a positive tread profile containing elements of the positive profile of the vehicle tire (4) to be vulcanized. Wherein lamella plates (9) located in the negative profile elements (7) form slit-like grooves in the elements of the positive profile of the vehicle tire (4) to be vulcanized. In addition, at least one ventilation slot (11) is located within the negative profile element (10) of the shoulder area as a ventilation means (5). This ventilation slot (11) extends parallel to the lamella plate (9) located in this element (10) of the negative profile of the shoulder area and at a distance from it. Wherein at least one cylindrical ventilation means (12) is additionally located only axially, externally with respect to this ventilation slot (11).EFFECT: improving the quality of manufacturing products.17 cl, 5 dwg

ethod of manufacturing filler-containing polymer sheet // 2640774
FIELD: technological processes.SUBSTANCE: method of manufacturing polymer sheet contains a stage of bending that includes bringing a billet of the polymer sheet containing a filler in the amount of 50% or more and 85% or less in contact with the surface of a solid body in such a way that the sheet is pressed the solid body surface in the transverse direction relative to the direction of the production flow while moving the sheet during the extraction towards the production flow, ensuring the sheet bend in the contact area to create a tension, which affects the internal side of the sheet.EFFECT: increasing the physical and mechanical properties of the products.6 cl, 3 dwg, 2 tbl, 8 ex

ethod and plant for manufacturing vehicle wheel tires // 2640762
FIELD: transportation.SUBSTANCE: in each request for the vulcanization of a non-vulcanized tire in a vulcanizer, from a plurality of vulcanizers, the gripping logic set in correspondence with said vulcanizer is used for selecting and gripping a non-vulcanized tire from the storage area. The respective gripping logic set in correspondence to each vulcanizer comprises a first gripping rule for unvulcanized tires from the storage area, and for at least one of the plurality of vulcanizers, the first gripping rule is changed to at least one second gripping rule, at least once during manufacturing at least one batch of tires in the plant.EFFECT: increasing the tire manufacturing productivity.29 cl, 10 dwg

ethod and device for filler arrangement on bead core // 2640761
FIELD: machine engineering.SUBSTANCE: method of ribbon-like filler arrangement in an annular shape on the outer periphery of the bead core includes the step of attaching the filler to the outer periphery of the bead core. The method includes the step of grasping the opposite ends of the filler and separating the opposite ends of the filler from the outer periphery of the bead core. The method includes the step of sequent attaching of the opposite end of filler surfaces to each other from inner peripheral sites of the opposite end surfaces to their outer peripheral sites and the step of pressing of the filler part, which was separated from the outer periphery of the bead core to the outer periphery of the bead core.EFFECT: increase the speed of the cord arrangement on the outer periphery of the bead core.2 cl, 11 dwg

ethod of composite shaped piece manufacture, composite shaped piece, multilayer structural element and rotor spare element and wind power plant // 2640760
FIELD: machine engineering.SUBSTANCE: composite shaped piece includes a thermoplastic plastic and a fibrous composite billet. The method includes providing a thermoplastic plastic and a fibrous composite billet with a flexible fiber system made in the form of a woven structure. The distribution of thermoplastic plastic in the form of a shaping core material in a flexible, woven structured fiber system and their connection. Moreover, the flexible, woven structured fiber system in conjunction with the shaping core material has intersecting fibers that are oriented with respect to each other and have an angle of fiber that is 10° up to 90°, in particular from 30° up to 60°. Preferably, the fibers are oriented with respect to each other at a fiber angle of 45° with a range of deviations in ±5°. Woven structured fiber system forms an outer functional layer of the composite shaped piece. Wherein the thermoplastic plastic is provided in the form of a thread, and a flexible, woven structured fiber system is provided in the form of a sleeve-like, woven structured fiber system. Wherein the thermoplastic plastic in the form of shaping core material is distributed in a flexible, woven structured fiber system of the fiber composite billet, due to the fact that it is introduced into the sleeve in form of woven structured fiber system in the form of a soft thread. When the soft thread solidifies, the thermoplastic plastic in the form of an outer functional layer of composite shaped piece forms a connection with a woven structured fiber system.EFFECT: increasing the strength and stiffness of composite piece.15 cl, 7 dwg

Composite reinforcing yarn, prepreg, tape for 3d printing and installation for their production // 2640553
FIELD: chemistry.SUBSTANCE: composite reinforcing yarn contains a roving of reinforcing fibers impregnated with a thermosetting binder, with a cross-section in the form of a circle with the diameter of 0.1-0.7 mm or ellipse with the ellipticity of 1 to 2 and the largest diameter of 0.1-0.7 mm. Impregnated roving is subjected to a temperature treatment until the thermosetting binder is completely cured. From the filament, prepreg is obtained by adding a thermoplastic binder. The tape is obtained by joining the yarn or prepreg with jumper wires made of thermoplastic material. The yarn is produced in an installation containing a bobbin, on which a coil with roving of reinforcing fibers or reinforcing and functional fibers is installed, an impregnating device, two heat treatment chambers, a ready-made filament receiving unit, a receiving coil. The temperature in the first chamber is 70-130°C, in the second chamber - 160-400°C. To produce the prepreg, a thermoplastic coating device is added to the installation to impregnate the thermosetting binder and fully cured roving.EFFECT: invention allows to reduce the complexity of producing parts with a thermoplastic matrix, the duration of producing the product; increasing the shelf life of raw materials and the efficiency of producing the products from composite materials.13 cl, 6 dwg

3d-printer, 3d-printer system and generative manufacturing method // 2640551
FIELD: physics.SUBSTANCE: invention relates to a 3D-printer, a 3D-printer system, and a generative manufacturing method. The 3D-printer (100) is adapted to form layer-by-layer a three-dimensional component through the formation of the construction material layers in the form of particles, lying one upon another, and by selective curing the partial area of the corresponding layer of the structural material. In addition, the 3D-printer (100) carries out the formation of one or more of the first three-dimensional components in the first structural space (B1) located in the 3D-printer, and at the same time one or more second three-dimensional components in the second structural space (B2) located next to the first structural space at a distance from it horizontally in the 3D-printer.EFFECT: improving the quality of manufactured objects.16 cl, 18 dwg

ethod for forming multicomponent insert device with seal for ophthalmological devices // 2640541
FIELD: physics.SUBSTANCE: invention relates to a method for forming an ophthalmic lens, to a method for forming a multicomponent insert for an ophthalmic lens, according to which at least the first rear and front curved insert elements are formed. Conductive material is placed on one or both of the first front and rear curved insert elements. An electronic component is attached to one or both of the first front and rear curved insert elements. The attachment is done to the conductive material. The first material is applied to form a first seal on the surface of either or both of the first front and rear curved insert elements. The first rear curved insert element is combined with the first front curved insert element to form the first element of the ophthalmic insert. The combination results in sealing the first cavity, internal to the combination of the first rear and front curved insert element, with the first material.EFFECT: increasing the functionality of the ophthalmic lens.20 cl, 13 dwg, 1 tbl

Portable curing system // 2640538
FIELD: technological processes.SUBSTANCE: device for curing a workpiece for forming a part comprises of: a mandrel having a shape selected for the part; a portable structure having a securing structure, configured to secure the mandrel, while the securing structure has the first side and the second side; a heating system, configured to cover the mandrel on the first side of the securing structure by the first heating device and the second side of the securing structure by the second heating device. The heating system is configured to generate heat for use in curing of the blank, disposed over the mandrel to form said part. In this case, the first heating device and/or the second heating device comprises of a deformable material selected in such a way that, in response to the vacuum, the first heating device and/or the second heating device is deformed.EFFECT: reduced energy consumption.12 cl, 15 dwg

Casting mould for plastic blank // 2640537
FIELD: technological processes.SUBSTANCE: mould comprises the first and second parts attached to each other, and the third part. The third part has a casting mould cavity which specifies the axis (Y'), and is adapted to be attached to the first surface of casting mould support frame as a unit. The second part located between the third part and the first part is adapted to move along the mentioned axis to close or open the cavity. The first part contains a longitudinal rod adapted to glide along the mentioned axis (Y') through the second surface of the support frame, located opposite and at some distance from the first surface. The second part is equipped with a guide frame containing the first plate with a through-hole through which a longitudinal rod may pass and is configured to rest upon the mentioned second surface. The second part is equipped with parallel guide rods, with their first ends attached to the first plate, and with their second ends - to the mentioned structure. The second part is equipped with a node sliding within the mentioned framework, with its first end attached to the rod by quick-release coupling, and containing a press at its second end, sliding inside the structure and specifying the first complementary cavity component. The structure is equipped with two half couplings and is configured in such a way that together with the press it specifies cam system for opening and closing two half couplings, which, when closed, limit the second complementary cavity component.EFFECT: increased productivity of the casting mould.16 cl, 23 dwg

Separation device for reduced polymer wastes // 2640453
FIELD: machine engineering.SUBSTANCE: invention refers to the separation devices for plastic scrap, which is a polymer waste of different textures with different density and aerodynamic characteristics, and may be used for separation of reduced waste generated in the processing of PET bottles. The separation device for reduced polymer waste, containing two fractions with different specific gravity, contains a separation chamber with one inlet port for supplying a stream of reduced wastes placed in the upper part of mentioned chamber, and at least two outlet ports, one of which is intended for the reception of heavy fractions and is made in the lower part of the chamber and placed directly under the inlet port and another for the reception of light fraction, a cyclone for separating the air from the stream of reduced waste, the outlet branch of which is located above the mentioned separation chamber and a blowing fan for supplying air stream with reduced waste into the cyclone. The device is provided with at least one air blower connected by an air duct with an inlet port formed in the side wall of the separation chamber to form a horizontally directed working air flow in the upper part of the latter, in the zone of the inlet port, and the distributor of a flow of the reduced waste which is unsightly adjoining the outlet branch pipe of the cyclone, connecting it to an inlet port of the separation chamber. The inlet port of the separation chamber is made in its upper wall, has a slot-like shape and is located along the side walls of the separation chamber to form two crossing streams of air in the separation chamber - the working air is being fed horizontally through the mentioned inlet port and the second one is carrying the above-mentioned reduced waste coming from above through the inlet port to the separation chamber. The outlet port for the heavy fraction is equipped with a diffuser expanding towards the inlet port. The outlet port for the light fraction is made in the lower part of the chamber and is located behind the outlet port for the heavy fraction in the direction of the horizontal air flow in the separation chamber.EFFECT: increase separation efficiency, and increase its productivity.3 cl, 2 dwg
ethod for manufacturing polymeric product on three-dimensional printer // 2640063
FIELD: machine engineering.SUBSTANCE: method includes layer-by-layer fusing of product with polymeric material. When fusing the product, rectilinear or smoothly curving inner channels filled with a reinforcing polymer material with a hardener are formed. A pre-heated polyurethane resin is used as such reinforcing material into which a wollastonin powder is added in amount of 20 wt % of the resin.EFFECT: use of the invention makes it possible to manufacture large-size and geometrically complex products and increase their strength and stiffness characteristics.1 cl

Vacuum method of producing polyurethane foam // 2640040
FIELD: chemistry.SUBSTANCE: method includes providing reactive to isocyanate component A, mixing, at least, reactive to isocyanate component A and isocyanate component B, thereby obtaining a polyurethane reactive mixture, providing polyurethane reactive mixture in the cavity (11), and lowering the pressure inside the cavity (11) to a value lower than ambient pressure. The said cavity (11) is ventilated to ambient pressure until the gelling time of the polyurethane reaction mixture is reached. Reactive to isocyanate component A contains polyol component A1, which further comprises a physical foaming agent T. The specified component A1 contains simple polyetherpolyol (A1a) obtained by adding epoxide to one or more initial substance chosen from carbohydrates and/or, at least, difunctional alcohols, simple polyetherpolyol (A1b) obtained by adding epoxide to aromatic amine, and complex polyetherpolyol of polyether (A1c) obtained by adding epoxide to the etherification product of derived aromatic dicarboxylic acid and, at least, difunctional alcohol.EFFECT: improved tightness.19 cl, 5 dwg, 3 tbl, 4 ex

Simple ethers of cellulose that have increased thermal strength of gel // 2640024
FIELD: chemistry.SUBSTANCE: invention relates to a thermogel forming composition, which is produced by combining nanocrystalline cellulose with cellulose ethers. This mixture can be used as a binder in a variety of different cases, for example, in food and raw ceramics. It can also be used to manufacture capsule shells for pharmaceuticals.EFFECT: inventionprovides increased gel strength at a high temperature.12 cl, 1 tbl, 5 ex, 4 dwg
anufacture of panels from polyisocyanurate foam // 2639871
FIELD: chemistry.SUBSTANCE: method comprises injecting a reaction mixture into a closed cavity and curing the said mixture to form a polyisocyanurate foam. The specified mould cavity is at an absolute pressure of 300 to 950 mbar. The specified reaction mixture comprises organic polyisocyanate (a), a polyol mixture (b), a trimerization catalyst (c), at least, one non-flammable substance (d), optionally auxiliary substances (e), and a blowing agent (f). The isocyanate index of this reaction mixture is more than 250. The polyol mixture (b) comprises an aromatic polyester polyol in an amount of, at least, 35 wt % and a novolak-based polyol. The combination of a certain blowing composition based on polyisocyanurate and the reduced pressure in the mould cavity ensures producing and getting a layered "sandwich"-type panels using a periodic process.EFFECT: panels are characterized by the increased fire resistance.12 cl, 4 tbl, 6 ex

Windshield wiper, primarily, vehicle windshield wiper // 2639841
FIELD: automotive engineering.SUBSTANCE: windshield wiper has a wind-deflecting device 22a. According to the invention, the wind-reflecting device 22a is made by a coextrusion method and has two wind-reflecting elements 32a, 34a, differing from each other in terms of their rigidity, and a carrier 10a comprising a carrier 12a with a longitudinally-guiding channel 14a for guiding the elastic element 16a to be placed therein. The carrier 12a is designed to connect the wind-reflecting device 22a, the elastic element 16a and the rubber band 40a of the wiper blade with geometric circuit, and has, at least, one fastening element 18a, 20a for securing the wind-reflecting device 22a in the assembled state with a positive circuit. The carrier 12a has a longitudinal opening 84a, by which the longitudinal guide channel 14a is open in a direction towards the wind-deflecting device 22a.EFFECT: stability of the wind-reflecting device and economical manufacture of the windshield wiper.6 cl, 16 dwg

System and method for carrying out internal re-lining of underwater pipeline // 2639828
FIELD: construction.SUBSTANCE: system 2 is designed to perform an internal re-lining of an underwater pipeline 5 having an inlet 13 and an outlet 11 below the sea level 8. The system comprises a coiling drum 3 located above sea level and having a section of the internal lining 1, wound thereon, arranged in a flattened orientation. The coiling drum 3 is made with the possibility to feed said internal lining 1 to the inlet 13. An executive mechanism made with the possibility of applying the tension force 6 to said internal lining 1 in order to stretch the internal lining through the pipeline is interfaced with the leading end of said internal lining. The internal lining is made of a composite structure having a fibrous core.EFFECT: said fibrous core has a tensile strength in the axial direction, exceeding the tensile strength in the radial direction and exceeding the tensile strength of the plastic layer.12 cl, 10 dwg

ethod and apparatus for hard insert encapsulation into contact lens for vision adjustment in patients with astigmatism // 2639785
FIELD: medicine.SUBSTANCE: method for formation of an ophthalmic lens with a rigid insert, which contains the following steps: addition of an initial volume of reactive monomers mixture to the anterior curvature mould part, at that, the initial volume of the reactive monomers mixture is less than the volume needed for ophthalmic lens formation; rigid insert placement on the initial volume of the reactive monomers mixture; preliminary curing of the initial volume of the reactive monomers mixture for fixed retention of the rigid insert near the anterior curvature mould part, with preliminary curing forming the anterior curvature unit; addition of an extra volume of the reactive monomers mixture required for ophthalmic lens formation, to the anterior curvature unit. The initial and the extra volumes of the reactive monomers mixture encapsulate the rigid insert, posterior curvature mould part placement near the anterior curvature unit, forming the anterior and posterior curvature unit; curing of the initial and extra volumes of the reactive monomers mixture with ophthalmic lens formation; extraction of the anterior and posterior curvature unit; lens extraction from the extracted anterior and posterior curvature unit; ophthalmic lens hydration.EFFECT: expansion of the arsenal of technical means.17 cl, 5 dwg, 1 tbl

ethod and plant for handling raw tyres // 2639780
FIELD: technological processes.SUBSTANCE: at least one row of raw tyres (P) is built on at least one line for building raw tyres. The raw tyres (P) sequentially running out of at least one said line, are placed in at least two storages. Free vulcanizing moulds are found in at least two lines of vulcanization. A raw tyre (r), suitable for the free vulcanizing mould, is selected in the storages. When the free vulcanizing mould belongs to the line of vulcanization, directly connected with the storage, which is not the storage, where the raw tyre (P') is, this selected raw tyre (P') is transferred to the free vulcanizing mould, passing it at least through the storage, directly connected with the line of vulcanization with the free vulcanizing mould, or at least through the line of vulcanization, directly connected with the storage, which contains the selected raw tyre.EFFECT: increasing the process performance.34 cl, 2 dwg

Built-up press-mould // 2639162
FIELD: metallurgy.SUBSTANCE: built-up press-mould comprises a stationary block having a movable and a stationary part, and replaceable pack - a forming block consisting of a die, a punch, a plate of ejectors, and ejectors. The movable part is made of interconnected support plate, a fastening plate, a shank plate connected to the stem and mounted with for movement along the guide columns, and fastening strips. The fixed part consists of the fastening plate connected to the gate plate, on which the hold-down strips are fixed, and the columns connected to the fastening plate and the gate plate are installed.EFFECT: reduced number of stationary press moulds, simplified design and possibility for using changeable block-packs which makes it possible to increase the range of manufactured products and reduce costs for production of casting moulds.3 dwg

Thermoformed devices of ophthalmological insert // 2639033
FIELD: medicine.SUBSTANCE: ophthalmic lens comprises: an insertion device comprising: the first insertion member and the second insert member that are thermoformed three-dimensional material; and a hydrogel sealant around the insertion device; wherein a cavity is formed at a portion between the first insertion member and the second insertion member. In another version of the ophthalmic lens, the insertion device may further comprise alignment elements to position the components on the insertion device, or the insertion device comprises a plurality of material layers; wherein the first material layer has dielectric properties and includes a portion of conductive material located on the surface of the insertion member.EFFECT: arsenal of ophthalmic devices is expanding.19 cl, 10 dwg, 1 tbl

Fabric with organosilicone base of optics // 2638985
FIELD: textile, paper.SUBSTANCE: method includes the steps of: feeding the organosilicone material and the fibrous material; wetting the fibrous material with the organosilicone material; hardening of the organosilicone material so that the fibrous material is partially immersed in the organosilicone material; feeding a textile-based element; and fixing the organosilicone-based element to the textile-based element with a binder, and the mentioned fibers in the fibrous material strengthens the bond between the organosilicone-based element and the textile-based element. In addition, a product made in such a way is offered.EFFECT: invention allows to create a product particularly suitable for application on the leather due to the high biocompatibility of the organosilicone compound, in particular polydimethylsiloxane.13 cl, 7 dwg
Combined method of turning plastic workpieces // 2638966
FIELD: technological processes.SUBSTANCE: according to the method of turning plastic workpieces, the workpiece and the cutting tool are imparted the relative motion of forming and the feeding is carried out discretely. Herewith pre-treatment of the plastic workpiece is carried out by twisting it to a tangential stress value of not more than 0.8 of the tensile strength of the workpiece material. Twisting of the workpiece is carried out in the direction opposite to the direction of the workpiece rotation during turning.EFFECT: increasing the productivity and quality of processing the workpiece, receiving the set physical and mechanical properties of products.1 cl

ethods and device for manufacturing bio-compatible batteries with inbuilt fuel cells for biomedical devices // 2638949
FIELD: electricity.SUBSTANCE: bio-compatible battery comprises the first hole located in the anode spacer layer; the second hole located in the cathode spacer layer, the second hole is being aligned to the first hole, and wherein the second hole is larger than the first hole, so that when the first hole and the second hole are aligned, the edge of the anode spacer layer is exposed in the second hole; the membrane layer disposed within the second hole and attached to the edge of the anode spacer layer; the first cavity between the sides of the first hole and the first surface of the membrane layer is filled with an anode solution; the second cavity between the sides of the second hole and the second surface of the membrane layer is filled with a cathode solution; and the third cavity is filled with fuel solution, and wherein the channel connects the third cavity to the first cavity.EFFECT: invention allows to create designs that can effectively retain the chemical composition of the fuel cell.34 cl, 9 dwg

ethod for manufacturing rotation shells and device for its implementation // 2638857
FIELD: machine engineering.SUBSTANCE: method is implemented by successive moulding of the sides and the central part of the blank in claimed device with an outer half-mould, an inner half-mould and a mandrel tip configured for mutual displacement.EFFECT: improved quality of rotation shells, increased manufacturability of their production, and increased versatility of the device, possibility for manufacturing claimed device of rotation shells with different positions of sides.2 cl, 3 dwg
 
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