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1233 results about "Thermoplastic materials" patented technology

Thermoplastic materials are those materials that are made of polymers linked by intermolecular interactions or van der Waals forces, forming linear or branched structures.

Electrofluid-driven deformable flexible fiber pump and manufacturing method

The invention relates to an electrofluid-driven deformable flexible fiber pump and a manufacturing method, the flexible fiber pump comprises a flexible pump body, a three-dimensional electrode module and an external voltage driving control unit, the flexible pump body is made of a thermoplastic plastic material, and the whole flexible pump body is of a hollow tubular structure; the three-dimensional electrode module comprises a polytetrafluoroethylene film and electrodes, and the electrodes comprise a positive electrode and a negative electrode; the polytetrafluoroethylene film is fused with the inner surface of the flexible pump body, the external voltage driving control unit is electrically connected with the positive electrode and the negative electrode, and the manufacturing method mainly comprises the steps of electrode printing, electrode winding and thermoplastic forming. Compared with the prior art, the electrode has the advantages that a planar electrode structure is converted into a three-dimensional structure through winding, so that the integration of the electrode is enhanced, and the application range of the three-dimensional electrode design is widened; and the shapes of the three-dimensional electrode module and the flexible pump body are fixed while heating, so that the electrode can adapt to the change of the shape of the pump, and the flexible deformation capability of the pump is improved.
Owner:SHANGHAI UNIV

Seat assembly and method of manufacture

A product includes a filament mesh member, a trim cover, and a hook and loop fastening system. The filament mesh member comprises a set of filaments of thermoplastic material, wherein each member of the set of filaments is bonded to at least one other member of the set of filaments. The trim cover is disposed over the filament mesh member. The hook and loop fastening system comprises a loop portion and a hook portion. One of the loop portion and the hook portion is attached to the filament mesh member. The other of the loop portion and the hook portion is attached to the trim cover. The loop portion and the hook portion cooperate to secure the trim cover to the filament mesh member.
Owner:LEAR CORP

Thermoplastic sleeve with high insulating property and method for preparing thermoplastic sleeve based on co-extrusion process

The invention relates to the technical field of high-voltage electrical equipment, and particularly discloses a high-insulating-property thermoplastic sleeve and a method for preparing the same based on a co-extrusion process, the surface of a nonlinear layer is wrapped with an insulating material, so that the corona discharge phenomenon is avoided; and meanwhile, the same thermoplastic material is adopted as the insulating layer (including the first thermoplastic layer and the second thermoplastic layer) material and the base material of the nonlinear layer, so that no obvious interface exists between the insulating layer and the nonlinear layer, charge accumulation is avoided, insulation failure is avoided, the insulation and voltage resistance of the sleeve is improved, and the operation reliability is improved.
Owner:TSINGHUA UNIVERSITY

Method and assembly for manufacturing a board element comprising a recycled material

A method for manufacturing a board element, such as a floor element, including an at least partially recycled board layer. The method includes providing a pre-processed material from at least one weight-reduced preformed board element, preferably being obtained by removal of material from a rear side thereof, wherein the pre-processed material includes a thermoplastic material, and providing a virgin material including a thermoplastic material. The method further includes applying heat and pressure to the pre-processed material and the virgin material in a double-belt press to form the board layer, and forming a board element comprising the board layer. Also, a corresponding assembly for manufacturing of a board element.
Owner:CERALOC INNOVATION AB

Structural component and method of providing the same

A structural component serves as a container for a vehicle. The structural component comprises a trough-shaped container section, an edge region, and fastening elements that are provided in the edge region. The container section forms a compartment and defines a bottom region and two or more wall regions, which are at least sectionally inclined with respect to the bottom region. The two or more wall regions are arranged between the bottom region and the edge region. The fastening elements are arranged and distributed around the container section. The container section and the edge region are formed of an injection moldable fiber reinforced thermoplastic material. The structural component at least sectionally has a porous internal structure that is formed by foaming the thermoplastic material.
Owner:BBP KUNSTSTOFFWERK MARBACH BAIER GMBH & CO KG

Primer composition, primer as well as preparation method and application of primer

The invention provides a primer composition, a primer as well as a preparation method and application of the primer. The primer composition comprises a component A, a component B and a component C in a mass ratio of (5-10): 1: 1, the component A comprises maleic anhydride modified chlorinated polypropylene, gaseous silicon, carbon black and a first organic solvent; the component B comprises an isocyanate prepolymer and a second organic solvent; the component C comprises epoxy resin, a silane coupling agent and a third organic solvent. The primer can effectively shield visible light, meets the reliability requirement of an automobile terminal, can be directly coated on the surface of automobile glass, and can meet the requirements of customers on light shielding and subsequent reliability after being dried and subjected to injection molding; the adhesive can be applied to bonding of different thermoplastic materials and glass, has a good bonding effect, and does not generate a degumming phenomenon under a strong demolding condition, so that the adhesive has the effect of quickly improving the bonding strength.
Owner:STEADYCHEM (SHANGHAI) CO LTD

Footwear sole structure having a composite element and methods for manufacturing same

One or more aspects of the present disclosure provide for composite elements that include a textile having a plurality of fibers, the plurality of fibers comprising a first thermoplastic material; and a second thermoplastic material surrounding the plurality of fibers of the textile and consolidating at least a portion of the textile, wherein the second thermoplastic material has a melting temperature lower than a melting temperature of the first thermoplastic material. The composite elements can be used as part of a fluid chamber or cushioning element, whereby the composite element imparts puncture resistant to the fluid chamber or cushioning element. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present disclosure.
Owner:NIKE INC

Fully-degradable bamboo-based composite material for 3D printing and preparation method of fully-degradable bamboo-based composite material

The invention relates to the technical field of 3D printing materials, and discloses a full-degradable bamboo-based composite material for 3D printing and a preparation method of the full-degradable bamboo-based composite material for 3D printing. 30%-50% of a bio-based thermoplastic material; the bio-based thermoplastic material is selected from at least one of polyhydroxyalkanoate (PHA), poly (butylene succinate) (PBS) or thermoplastic starch (TPS); 5%-10% of an interface modifier; the interface modifier is a compound of chitosan and citric acid, and the mass ratio of the chitosan to the citric acid is (1: 1)-(2: 1); 0.5%-2% of a functional auxiliary agent; the functional auxiliary agent comprises but is not limited to a natural antioxidant, a bio-based plasticizer and a halogen-free flame retardant. The bamboo fiber powder and the full-degradable bio-based material (PHA / PBS / TPS) are compounded according to a specific proportion, and the chitosan-citric acid composite interface modifier is combined, so that the interface bonding force is remarkably improved. Natural functional auxiliaries are added, and the requirements for oxidation resistance, plasticizing flowability and flame retardance are synchronously met.
Owner:吴宏宇 +1

Glass fiber reinforced welding method, welded structural part and application of welded structural part

The invention discloses a welding method reinforced by glass fibers, a welding structural part and application of the welding method and the welding structural part. The method comprises the steps that a first welding rib material is sprayed into a groove of a lower workpiece to form an initial welding rib structure, and the first welding rib material comprises a first thermoplastic material, an adhesive and a light absorbing agent; a second welding rib material is sprayed to the surface of the preliminary welding rib structure, the preliminary welding rib structure is wrapped with the second welding rib material, an integral welding rib structure is formed, and the second welding rib material comprises glass fibers; and the upper workpiece and the lower workpiece with the welding rib structure are stacked and fixed, the upper workpiece and the lower workpiece are welded into a whole through laser welding, and the welded structural part is obtained. The defects of an existing laser transmission welding process are overcome, the problems that the machining process of a welding rib and workpiece integrated machine is tedious, a light absorbing agent needs to be additionally added to the workpiece to meet the requirement for the light absorption performance of the welding rib are solved, and the problem that the surface of the welded workpiece is uneven is solved.
Owner:CHINA UNIV OF PETROLEUM (BEIJING)

Thermoplastic fiber web structure and automotive interior part

The present disclosure relates to a thermoplastic fiber web structure (2a, 2b, 2c, 2d), which forms a support structure through fiber filaments (21a, 21h, 21i, 21k, 21l, 21m, 21n, 21q) that are melt-bonded together, the fiber filaments being formed from a thermoplastic elastomer material. The present disclosure further relates to an automobile interior part comprising a thermoplastic fiber web structure as described above and a sleeve and / or fabric (1a, 1b, 1c, 1d) fastened to the thermoplastic fiber web structure. The thermoplastic fiber web structure forms a support structure by melt extrusion of a thermoplastic elastomer material into a three-dimensional network structure, which has high resilience and recyclability. The automobile interior part, at the same time of ensuring support and comfort, achieves environmental protection, breathability and light weight. In particular, the thermoplastic material is subjected to a physical reaction rather than a chemical reaction during the melt extrusion process, so that the stability in the preparation process is better, and the product can be smoothly and controllably made. In addition, considering that conventional sleeve foaming fastening form cannot be applied to the thermoplastic fiber web structure, a completely novel fastening form is provided for the automobile interior part to match the wrapping of the thermoplastic fiber web structure.
Owner:YANFENG INTERNATIONAL AUTOMOTIVE TECHNOLOGY CO LTD

Ultrathin / broadband / bearing wave-absorbing honeycomb sandwich multilevel structure and preparation method thereof

The invention discloses an ultrathin / broadband / bearing wave-absorbing honeycomb sandwich multilevel structure and a preparation method thereof. The ultrathin / broadband / bearing wave-absorbing honeycomb sandwich multilevel structure is formed by connecting unit bodies of rectangular structures. Each unit body comprises a reflecting plate, a square hole honeycomb core body and a metasurface, the square hole honeycomb core body is made of a functional fiber reinforced composite material, and the reflecting plate is made of a carbon fiber composite material; wherein the metasurface and the reflecting plate are arranged on the upper surface and the lower surface of the core body respectively, the square hole honeycomb core body comprises an external square hole and a honeycomb arranged in the square hole, and the inner surface of the square hole is provided with a coating; a lattice structure made of a thermoplastic material is arranged in the honeycomb in the square hole, and the metasurface is a periodic array pattern and is made of a conductive carbon-based nano material; and each unit body is connected with the adjacent unit body in a clamping groove interlocking manner. The broadband electromagnetic absorption effect within the frequency band of 4-40 GHz is achieved, meanwhile, the high specific strength and specific stiffness of the whole sandwich structure are achieved, and an efficient way is provided for achieving a high-performance electromagnetic function structure.
Owner:NORTHWESTERN POLYTECHNICAL UNIV

Method for producing containers, and facility for implementing the method

A method for producing containers from preforms. In example embodiments, the containers can have different formats. In example embodiments, the method includes thermal conditioning of a preform made of a thermoplastic material, moulding by blow-moulding or stretch blow-moulding of the container by means of a unit for forming containers, and calibration. The calibration includes providing a sample preform for said format; placing, on said sample, at least two reference markers distributed along the height of said sample; thermally conditioning the sample and blow-moulding the sample in order to obtain a container according to said format; reading off the position of the reference markers on said container obtained; and assigning each of the heating means to at least one of the three portions on the basis of the position of the reference markers on said container obtained. The invention also relates to a facility implementing the production method.
Owner:SIDEL PARTICIPATIONS SAS

Shoe material master batch based on coffee grounds and preparation method thereof

The invention provides a shoe material master batch based on coffee grounds and a preparation method thereof. The shoe material master batch comprises the following raw materials in parts by mass: 100 parts of coffee grounds, 30-70 parts of a thermoplastic material, 5-10 parts of an isocyanate-terminated polyurethane prepolymer, 3-10 parts of a compatibilizer, 1-5 parts of a filler and 0.1-1 part of an antioxidant. The content of the coffee grounds in the shoe material master batch is 50% or above, the isocyanate-terminated polyurethane prepolymer is applied to the highly-doped coffee grounds system, the interface bonding force between the coffee grounds and a thermoplastic material matrix and the melt supporting capacity can be remarkably improved through the cooperation of the isocyanate-terminated polyurethane prepolymer and the filler, the shoe material master batch has the good melt index and melt strength, and the service life of the shoe material master batch is prolonged. The foaming material has good processability and foaming performance, so that the foaming material can be better applied to foaming shoe materials.
Owner:WUHAN HUALI ENVIRONMENTAL PROTECTION IND CO LTD

Splashguard device for a wheeled vehicle and assembly comprising such a device

The invention relates to a heatable mixer (1) for composite products based on thermoplastic material(s), having an elongate structure defining a longitudinal processing path between at least one inlet and at least one outlet (2′) and comprising a heated trough (3) in which two mutually interpenetrating parallel twin screws (4 and 4′) are mounted, forming member(s) for dimensionally reducing, heating and moving the products to be processed which are inserted at the inlet, each screw (4, 4′) comprising a heated and driven support shaft (5) arranged in the path direction (DT). The mixer (1) is characterised in that it comprises, at the or at each outlet (2′), a member (20) for controlling the liquid or semi-liquid output stream of processed products, flowing through the associated outlet (2′), advantageously under the effect of gravity.
Owner:SOPREMA SA

Bicycle frame for a sprung bicycle and methods for its manufacture

The invention relates to a bicycle frame (10, 30) for a sprung bicycle, which is at least predominantly injection-molded in one piece from a fiber-reinforced thermoplastic material, comprising several frame tubes selected from a group of frame parts, including a top tube (16), a down tube (14), a seat tube (12), chainstays (18) and seat stays (19), wherein the bicycle frame has at least one main frame (11) comprising at least the seat tube (12) and the down tube (14) and a bottom bracket housing or motor bearing housing (13) connecting these in one piece and a rear triangle (17) molded in one piece, wherein the rear triangle (17) of the bicycle frame (10, 30) is formed with seat stays (19) and chainstays (18), the rear triangle (17) is designed to be resiliently compliant about a virtual bottom bracket axis (Z), wherein at least the rear triangle (17) includes at least one further frame part designed as a spring element (21, 31). includeswhich defines at least substantially linear spring travel, and wherein at least the further spring element (21, 31) is designed as an integral part of the bicycle frame (10, 30). The invention further relates to a method for manufacturing the bicycle frame.
Owner:IGUS SE & CO KG

Device for containing liquid, of the container or circulation circuit type, and manufacturing processes for this device

Device for containing liquid, of the type container or circulation circuit, and methods of manufacturing this device. The invention relates to a device (1) for containing liquid, of the type container or thermal regulation circuit with heat transfer fluid, comprising at least one metal wall (2) which has openings (3, 3') for the passage of the liquid through said wall (2), a supply or discharge pipette (4, 4') being present on the external face of said wall (2), at the level of each opening (3, 3') and being connected in a hermetic manner to the opening (3, 3') concerned.Device (1) characterized in that each pipette (4, 4') is a pipette made of thermoplastic material, attached exclusively indirectly to the metal wall (2), around the relevant opening (3, 3'), through an intermediate metal piece (5), assembled directly with the outer face of said metal wall (2), and / or, through an intermediate piece or layer made of thermoplastic material (5'), attached by welding or overmolding onto the outer face (2') of said metal wall (2) or onto an intermediate metal piece (5) assembled directly with said outer face (2') of the metal wall (2). Figure to be published with the abbreviation: Fig. 5A.
Owner:SOGEFI AIR & COOLING (SAS)

Improved method for the manufacture of a skin for an aeronautical engine

Method for the manufacture of at least one skin, in particular of an acoustic panel for an aeronautical engine, including the laying of a thermoplastic material on a surface of a lay-up tooling, via a depositing tool configured to exert a pressure on the thermoplastic material and to heat the latter while it is being laid, wherein the lay-up tooling includes a thermal regulation device configured to locally heat the surface of the lay-up tooling.
Owner:SAFRAN SA

Thermoplastic support structure, underbody protection device and motor vehicle with underbody protection device

The present invention relates to a support structure (2) comprising, for example, a thermoplastic material or constructed from it, for optional arrangement below a traction battery (3) of a motor vehicle (1) and / or optional arrangement above an underbody protection device (4) on an underbody (7) of the motor vehicle (1), which support structure can be installed or is installed in a gas guidance system (5) that is sufficiently / predominantly / substantially / practically airtight from the ambient atmosphere, wherein the support structure (2) has a geometry such that it defines / fixes one or more degassing cross sections (6) for the passage of hot gas escaping from the traction battery (3), wherein a design and material selection are made such that a narrowing of the degassing cross section (6) or the degassing cross sections (6) is counteracted.The invention also relates to an underbody protection device (4) with an underbody protection plate (13) on which such a support structure (2) is arranged and / or fastened. The invention also relates to a motor vehicle with a battery (7), the battery housing (10) of which is supplemented with such an underbody protection device (4).
Owner:UMWELTTECHN GEORG FRITZMEIER

Stackable moulded container for a medical / pharmaceutical preparation, which moulded container is made of a thermoplastic material

A molded container is configured for containing a medical and / or pharmaceutical preparation and for vertical stacking during transport and / or storage. The container has a bottom portion at one end of a trunk section and a shoulder portion at an opposite end of the trunk section. The shoulder portion includes a container neck that can be closed by a cap. A hollow is recessed in a bottom surface of the bottom portion. The hollow is form-fitted or configured to contactlessly accommodate a container neck of another container. The bottom surface outside the hollow is molded as a relief-like bottom contour surface with at least one axially recessed bottom recess molded segment and with bottom load contact molded segments adjacent to the bottom recess molded segment and axially protruding from it, so that the at least one bottom recess molded segment is exempted from a base area of the molded container.
Owner:B BRAUN AVITUM

Deformable FDM filaments with functional ribbons

The invention provides a method for producing a 3D item (1) by means of fused deposition modelling, wherein: (A) the method comprises: 3D printing a filament comprising 3D printable material (202) to provide the 3D item (1) comprising 3D printed material; (B) the filament comprises (i) a first core, comprising a core material, wherein the core material comprises a first thermoplastic material, and (ii) a first ribbon structure (2280), comprising a plurality of first rounds, wound around the first core; and (C) nearest neighboring first rounds of at least one set of two first rounds have a non-zero first mutual distance thereby defining a first inter-ribbon region where the core material is exposed.
Owner:SIGNIFY HOLDING BV

Preparation method of carbon fiber felt reinforced composite material

The present invention relates to the technical field of composite materials, and particularly relates to a preparation method of a carbon fiber felt reinforced composite material, comprising the following steps: S1. Surface ion etching treatment is respectively carried out on thermoplastic material fiber filaments and sized continuous carbon fiber yarns, and the treated thermoplastic material fiber filaments and the sized continuous carbon fiber yarns are woven to obtain a mixed woven plain fabric; S2. Using the mixed woven plain fabric as a base layer and carbon fiber pre-oxidized short fibers as fillers, a carbon fiber reinforced thermoplastic material composite felt sheet is obtained through needling treatment; S3. After the carbon fiber reinforced thermoplastic material composite felt sheet and a thermoplastic material film are alternately laminated and laid, hot pressing is carried out to form a carbon fiber felt reinforced composite material; The carbon fiber felt reinforced thermoplastic composite material prepared by the method of the present invention has high toughness and interfacial strength.
Owner:江苏君华特种高分子材料股份有限公司 +1

Nitrogen flush to improve heat resistance of heat-sensitive materials during injection molding of thermoplastic automotive parts

PCT designated stage expiredWO2025076528A1Domestic articlesPolymer scienceCarbon footprint
A thermoplastic component formed by an outer surface layer and a core material for the purpose of using in vehicle exterior trim, exterior panel, or exterior body part with class A surface appearance. A process for injection molding of a reduced carbon footprint thermoplastic material comprising the steps of: a. Providing a first phase material which includes a thermoplastic resin; b. Adding a second phase organic waste filler material to said first phase thermoplastic resin, and, c. Injection molding an article from the combination in the presence of an inert gas for attenuation of any thermal degradation of the second organic waste filler during injection molding.
Owner:MAGNA EXTERIORS INC +1

Integration of an LED array into a transparent optical element

A light-emitting apparatus includes: a transparent substrate; electrically conductive traces, bond pads, or land pads on the substrate; LEDs; and transparent molded material. The traces, bond pads, and land pads can be transparent, or can be sufficiently small and sufficiently sparse, to enable visual observation of a scene through the substrate and the traces, bond pads, or land pads. The LEDs are connected to the bond pads, and are sufficiently small and sparse so as to enable visual observation of the scene through them. The molded material can be a thermoplastic material or a thermoset material and is molded directly onto the substrate surface, without any intervening adhesive, and encapsulates the LEDs and the traces, bond pads, or land pads. Molten material or liquid precursors are injected into a mold enclosing the substrate with the LEDs and the traces, bond pads, or land pads.
Owner:LUMILEDS LLC

Insect net lamella and method of producing the same

Described is an insect net strip produced from a wide insect net which has been cut in a warp direction (xnet) by means of a one-step ultrasonic cutting and welding process. The insect net strip includes warp yarns and weft yarns extending substantially perpendicular to each other and at least 90% of the warp and weft yarns are monofilament yarns made of a thermoplastic material. After cutting and welding process the insect net strip has a first and a second edge extending parallel to said warp yarns each including a deformation zone being constituted by consolidated thermoplastic material deriving at least from said weft yarns. The deformation zone has a width (wdz) in the transverse direction (ystrip) of between 0.5-35 times the weft yarn diameter (øwe). At least 90% of gaps between adjacent weft yarns in the deformation zone are closed by consolidated thermoplastic material at least from the weft yarns which has been melted together to form a continuous or substantially continuous reinforced band-shaped edge portion of said insect net strip. The insect net strip is suitable for use in accordion-style constructions in greenhouse ventilation openings. A method for producing the insect strips is also described.
Owner:LUDVIG SVENSSON INT

Intelligent compression healing promoting device free of dressing change after cardiac pacemaker implantation

The invention discloses a dressing-change-free intelligent compression healing promoting device after cardiac pacemaker implantation. The dressing-change-free intelligent compression healing promoting device comprises a composite dressing, a polymorphic biosensor, a medicine injection hose, a pressure applying air bag, a thermoplastic material and an acceleration sensor, the polymorphic biosensor medicine injection hose and the pressure applying air bag are arranged in the inner layer of the composite dressing, the position, corresponding to an incision, of the medicine injection hose is arranged in the composite dressing, and one end of the medicine injection hose is connected with the antibiotic storage injector in a split mode; the thermoplastic material is integrally connected to the side, close to the clavicle, of the upper portion of the composite dressing, the acceleration sensor is arranged in the thermoplastic material, the pressure applying air bag is detachably connected with the air pump through the air adding hose, and the one-way valve is installed on the air adding hose. According to the dressing-change-free intelligent compression healing promoting device used after cardiac pacemaker implantation, the positions and the connection relation of all the components are defined, function cooperation is achieved, and the problems existing in an existing nursing mode are effectively solved.
Owner:AFFILIATED RENHE HOSPITAL OF CHINA THREE GORGES UNIV

Consumable friction solid-phase welding device and using method thereof

The invention relates to the technical field of welding, and provides a consumable friction solid-phase welding device and a using method thereof.The consumable friction solid-phase welding device comprises a base plate, a first pressing plate, a second pressing plate, a cutter and a filling bar; the base plate is provided with a placing groove for placing the first plate, and the second plate and the third plate are spaced to form a stirring groove; the first pressing plate is used for clamping and fixing a second plate; the second pressing plate is used for clamping and fixing a third plate; the cutter is provided with a feeding channel, and a filling bar is arranged in the feeding channel in a penetrating mode. And the pressure applying assembly is used for applying loading force to the filling bar to push the filling bar to move, so that the filling bar rubs, extrudes and stirs the first plate, the second plate and the third plate to form a thermoplastic material, and the stirring groove is filled with the thermoplastic material to form a butt joint. The problem that a wear material of the stirring needle enters a welding seam and pollutes the welding seam can be solved, and the prepared welding seam is pure in quality and excellent in mechanical property.
Owner:AVIC BEIJING AERONAUTICAL MFG TECH RES INST

Hybrid acoustic floor panel

A floor panel includes a rigid base slab of thermoplastic material and a flexible decorative top structure fixed on the base slab, the top structure including a wear layer for forming a walking surface of the floor panel, and the top structure including at least one footfall sound reducing foam layer arranged between the wear layer and the base slab.
Owner:TARKETT GDL

Method for producing a structural component for a bicycle, method for producing a bicycle frame, and bicycle frame

The invention relates to a method for producing a structural component, at least part of which is in the form of a hollow profiled element, for a bicycle (1), comprising the method steps of: providing an injection molding device; producing and / or providing at least one lost core (30) which can be melted out and / or dissolved and / or mechanically destroyed and which is adapted at least to a first part of an inner contour of the structural component; introducing the lost core (30) into a mold tool; closing the mold tool and keeping it closed and overmolding the lost core (30) with a thermoplastic material; opening the mold tool and removing an injected-molded intermediate product; melting out and / or dissolving out and / or mechanically removing the lost core (30). The method is in particular characterized in that at least one further part of the inner contour of the structural component is molded by means of at least one movable tool core (31) or movable mold slide of the mold tool. The invention also relates to a structural component of a bicycle (1).
Owner:IGUS GMBH

Preparation method of 3D printing composite material

The invention provides a preparation method of a 3D printing composite material, which comprises the following steps: S10, providing a 3D printing skeleton which is printed by adopting a first thermoplastic material and has a three-dimensional communicated open pore structure, and reserving a layer grain structure formed in the printing process on the surface of the 3D printing skeleton; s20, the 3D printing framework is placed in a constant-temperature environment of 70-90 DEG C and kept dry; s30, the heated 3D printing framework is moved into a cavity of an injection mold, the mold is closed, and the temperature of the cavity of the injection mold is set to be 30-60 DEG C; s40, a molten second thermoplastic material is injected into the cavity, so that the second thermoplastic material wraps the 3D printing framework and fills the groove of the layer grain structure; the shore hardness of the second thermoplastic material is lower than that of the first thermoplastic material, and the softening temperature of the first thermoplastic material is higher than the melt injection temperature of the second thermoplastic material. According to the 3D printing composite material prepared by the preparation method, the problem that the comfort degree of an existing 3D printing insole is relatively low can be solved.
Owner:ANTA (CHINA) CO LTD

Method for manufacturing an ammunition cartridge and ammunition cartridge

The present invention pertains to the field of the arms industry and metallurgy, and also to the fields of materials engineering and chemical engineering. More specifically, the present invention refers to a novel ammunition cartridge comprising reinforced polymer and the manufacturing process thereof. The ammunition cartridge serves for receiving the gunpowder so that explosions can occur inside the weapon barrel. The technology proposed reduces the quantity of components to be pre-manufactured and assembly processes on the product, producing a full cartridge, directly upon injecting the thermoplastic, and can also use bi-component injection. With this, the portion of the collar ring can be made entirely of fiber-reinforced polymer material, which reduces the weight of the item and is beneficial for the useful life of the weapon in the bolt region.
Owner:COMPANHIA BRASILEIRA DE CARTUCHOS +1