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140 results about "Plastic compounding" patented technology

Compounding consists of preparing plastic formulations by mixing and/or blending polymers and additives in a molten state, these blends are automatically dosed with fixed setpoints usually through feeders/hoppers. It is mostly a blend of copolymers such as ABS, SAN, SMA etc. with additives such as anti-oxidants, UV-stabilizers and other value adding agents and sometimes a strengthening component is added such as glass fibre.

High-pressure high-ring-steel triangular steady-state steel skeleton plastic composite pipeline and manufacturing system and method thereof

The invention discloses a high-pressure and high-ring-steel triangular steady-state steel framework plastic composite pipeline and a manufacturing system and method thereof, and relates to the technical field of steel framework plastic composite pipeline production, the high-pressure and high-ring-steel triangular steady-state steel framework plastic composite pipeline comprises a warp wire arrangement frame, and a weft wire storage rotating seat is arranged on one side of the warp wire arrangement frame; according to the full-automatic injection molding machine for the steel framework, preheating before injection molding of the steel framework is achieved, then the temperature difference between the steel framework and molten plastic is effectively reduced, the temperature difference between the steel framework and the molten plastic is effectively reduced, and the temperature difference between the steel framework and the molten plastic is effectively reduced; the situation that plastic on the outer side of the steel framework is contacted firstly during injection molding of the steel framework and is rapidly cooled and hardened to influence normal flowing of follow-up molten plastic is effectively prevented, and it is ensured that gaps on the outer side of the steel framework can be fully filled with the molten plastic in the injection molding process; the internal defects in the production process of the steel skeleton plastic composite pipe are effectively removed, and the quality of the steel skeleton plastic composite pipe product is further improved.
Owner:HEBEI ZHONGSU PIPE TECH CO LTD

Production method of high-wear-resistance metal / plastic composite harness wire for high-speed jacquard loom

PendingCN121198826AFurnace typesHealdsWire rodJacquard loom
The invention discloses a production method of a high-wear-resistance metal / plastic composite harness wire for a high-speed jacquard loom, which comprises the following steps: S1, preparation of a stainless steel wire: selecting 316L type stainless steel for multi-pass wire drawing treatment to obtain a cylindrical wire rod with the diameter of 1-1.5 mm; carrying out annealing treatment on the wire rod; s2, stamping the wire rod: performing torsion releasing, straightening, cutting, middle flattening and punching treatment on the coiled wire rod to obtain a stainless steel part crude product with a heald eye in the middle; s3, treatment of the heald eye of the stainless steel part, wherein pretreatment, deburring and polishing are included; and S4, the stainless steel part and the plastic parts are compounded, specifically, the stainless steel part treated in the step S3 is cleaned and dried, and then the plastic parts are directly formed at the two ends of the stainless steel part in an injection molding mode. Through optimized material selection, precise machining and a unique surface treatment process, the produced composite harness wire has the advantages of no magnetism, smooth and wear-resistant harness eyes, firm combination of metal and plastic, long service life and the like, and is suitable for a high-speed operation condition.
Owner:JIAXING YUANZHI NEW MATERIAL TECH CO LTD

Composite panels having a melamine impregnated protective layer

The disclosed panels generally comprise a protective layer composed of a paper impregnated with a melamine resin. The protective layer may be incorporated into a panel comprising a rigid composite core, such as a plastic composite core or a mineral composite core. Disclosed are also methods for manufacturing the panels.
Owner:COLUMBIA INSURANCE CO

Insulation piercing connector and forming process

The application relates to an insulation piercing connector and a forming process, and relates to the technical field of insulation piercing connectors. The process comprises the following steps: providing a blade belt and a gasket belt; synchronously feeding the blade belt and the gasket belt into a co-extrusion die head and compounding with molten plastic, continuously extruding a first plastic body, so that the blade belt is exposed on the blade edge side and the rest is embedded in the plastic body, and the gasket belt is completely embedded in the plastic body; cutting to a fixed length; stamping and forming piercing teeth and bolt holes; and covering exposed end faces with plastic elastic second plastic bodies at both ends. The product comprises the first plastic body, the embedded piercing blade, the completely embedded gasket and the second plastic body covering the end faces. The traditional discrete injection molding is reconstructed into a continuous co-extrusion integrated process, the production efficiency is doubled, the positioning precision of the embedded part is high, and the double end face sealing guarantees long-term electrical reliability.
Owner:YUEQING KEYI ELECTRIC GROUP

Positioning and guiding structure of plastic composite pipe expanding machine

The utility model relates to the technical field of flaring machines, and discloses a positioning guide structure of a plastic composite pipe flaring machine, which comprises a support table, the bottom of the support table is slidably connected with a base, the inside of the base is rotatably connected with a rotating shaft, and the surface of the rotating shaft is sleeved with two groups of pushing components. A positioning plate is fixedly connected to the top of the supporting table, two sets of sliding blocks are slidably connected to the interior of the positioning plate, an adjusting assembly is fixedly connected to one end of each sliding block, and the pushing assembly comprises a rotating rod connected to the surface of a rotating shaft in a sleeving mode. According to the positioning and guiding structure of the plastic composite pipe expanding machine, the pushing assembly is arranged, the effect of stably adjusting the height of the expanding machine is achieved, when different pipe diameters are replaced, the supporting height can be rapidly and synchronously adjusted to ensure accurate alignment of a pipe opening and a mold, the center line of a pipe is strictly aligned with the center line of the expanding mold, and the production efficiency is improved. Flaring deflection or uneven stress caused by height dislocation is avoided, and flaring size consistency and sealing performance are guaranteed.
Owner:JILIN YUTONG SPECIAL PIPE IND CO LTD

Side structure of vehicle body

An embodiment side structure of a vehicle body includes a side body, a surround panel coupled to the side body and having an opening, and a side outer panel including a plastic composite material coupled to the surround panel. In an embodiment, the surround panel includes a plurality of pillar reinforcement parts coupled to a plurality of pillars provided on the side body, a side sill reinforcement part coupled to a side sill provided on the side body and connected to the plurality of pillar reinforcement parts, and a rear wheel arch reinforcement part coupled to a rear wheel arch provided on the side body and connected to the plurality of pillar reinforcement parts.
Owner:KOLON SPACEWORKS CO LTD +2

Method for producing a composite material of metal and plastic to form a plastic-metal hybrid component, and use of the hybrid component produced according to the method.

A method for producing a composite material of metal and plastic to form a plastic-metal hybrid component, in which macroscopic undercuts with microscopic undercuts having stochastically random roughness shapes and depths are introduced into the metal surface by means of short-pulse laser radiation to improve the adhesion between the metal surface and at least one plastic component, wherein the shapes and depths of the laser structuring of the metal surface are produced by changing the guidance and / or speed of the laser beam movement and simultaneously adjusting the power and / or the repetition rate of the short-pulse laser radiation, and the stochastically random roughness shapes are each at least partially filled with the at least one plastic component in an injection molding process such that the latter is gripped in the macroscopic and / or microscopic undercuts.wherein, following the roughening of the metal surface prior to the injection molding process of the at least one plastic component, at least the roughened surface of the metal is heated to a temperature which, in the processing range from room temperature to 100°C, is above the processing temperature of the at least one plastic component.
Owner:ALBIS PLASTIC GMBH +7

Leak repairing method for steel skeleton plastic composite pipe

The invention discloses a leakage repairing method for a steel skeleton plastic composite pipe. The leakage repairing method comprises the steps that firstly, a leakage point is primarily sealed through a plastic welding gun; step 2, filling a gap with a leaking stoppage agent; and step 3, glass fiber reinforced plastic resin mouth pasting enhanced protection. The defects that an existing single leak repairing method is not thorough in sealing, insufficient in pressure resistance, poor in adhesive force and prone to being affected by the environment are overcome, and the leak repairing method for the steel framework plastic composite pipe is durable in sealing, high in pressure resistance, high in adhesive force and wide in environmental adaptability through the synergistic effect of primary sealing of the plastic welding gun, filling of the leak stopping agent and reinforcement of the glass fiber reinforced plastic resin.
Owner:GUANGXI JINCHUAN NONFERROUS METAIS CO LTD

Antibacterial and deodorant plastic composite material applied to pet cart and preparation method of antibacterial and deodorant plastic composite material

PendingCN122037390ABismuth vanadateAntioxidant
The invention discloses an antibacterial and deodorant plastic composite material applied to pet carts and a preparation method of the antibacterial and deodorant plastic composite material. The composite material comprises a thermoplastic resin matrix, a composite inorganic antibacterial deodorant, a compatible dispersant, an antioxidant, a light stabilizer and a processing aid, the preparation method comprises the steps that silver-doped porous spherical bismuth vanadate powder / nano cerium oxide is synthesized to serve as an inorganic antibacterial deodorant, then the inorganic antibacterial deodorant and other components are subjected to melt blending, the porous structure of the inorganic antibacterial deodorant can efficiently adsorb peculiar smell molecules, silver ions are slowly released from deep pore channels, the material can still keep activity in a weak light environment, and the material has a good antibacterial effect. The BiVO4 / CeO2 composite photocatalyst has the advantages that the BiVO4 / CeO2 composite photocatalyst is prepared by the aid of the BiVO4 / CeO2 composite photocatalyst, accordingly, long-acting and lasting antibacterial effects can be realized, defect energy levels can be introduced by doping Ag in BiVO4 crystal lattices, heterojunction can be formed between Ag-doped BiVO4 and CeO2, effective spatial separation of photo-induced electrons and holes can be realized, sufficient active oxygen species can be generated, and efficient and broad-spectrum antibacterial effects can be realized.
Owner:HU BEI DOU HA HA KE JI YOU XIAN GONG SI

Aluminum-plastic panel production equipment with residual defoaming powder eliminating structure

The utility model discloses aluminum-plastic panel production equipment with a residual defoaming powder eliminating structure. The aluminum-plastic panel production equipment comprises an aluminum-plastic compound machine, a plastic forming press, a plastic extruder and a defoaming pool, the defoaming tank is arranged between the plastic forming press and the plastic extruder; the defoaming tank is filled with water; and a material strip extruded by the plastic extruder passes through the water body of the defoaming tank and then is fed into the plastic forming press. According to the utility model, the plastic plate extruded by the plastic forming press is immersed in the water body of the defoaming tank, so that the unreacted quick lime and other defoaming agents fully react with the water under the controlled condition to generate calcium hydroxide, residual particles and reaction byproducts on the surface of the plastic plate are washed and removed after the plastic plate is washed, and the cleanliness of the composite interface of the plastic substrate and the aluminum plate is obviously improved; and after aluminum-plastic compounding, the interlayer bonding strength is improved, and the anti-stripping performance of the aluminum-plastic panel is effectively improved.
Owner:JIANGMEN XINWANG JIXIANG DECORATION MATERIALS CO LTD

Combination printing for the additive manufacturing of a component made from a metal-plastic combination

ActiveDE102016010923B4Polymer sciencePlasticulture
A combination printing process for producing a multi-component component comprising areas of both metal and plastic, wherein at least one metal is plasticized by means of a first extruder (5) and at least one thermoplastic material is plasticized by means of a second extruder (5) and selectively applied two-dimensionally in the x- and y-axis directions to a build surface (7) on a build platform (8) and cooled, after which the build platform (8) is lowered in the z-axis or the extruders (5) are raised in the z-axis and the steps are repeated until the component is completed, and the extruders (5) and the build platform (8) are arranged on a kinematic system (6), wherein, for the production of a positive-locking bond between the at least one metal and the at least one thermoplastic material, the at least one metal and the at least one thermoplastic material have similar melting and / or glass transition temperatures.
Owner:UNIVERSITY OF ROSTOCK

Propeller blade spacer for aquaculture net cleaning

A propeller assembly to facilitate the cleaning of aquaculture nets. The propeller assembly has a centrally disposed hub with a plurality of plastic composite blades extending outwardly to a perimeter ring. A plurality of triangular shaped rigid knuckles are coupled to the perimeter ring. A blade spacer is attached to a leading edge of each blade, the knuckle and blade spacer are constructed of a wear resistant non-ferrous material, ferrous material, or combination thereof. In operation, rotation of the blades provides thrust for positioning the knuckles against an aquaculture net, whereby the knuckles remove fouling from the aquaculture net by violently shaking the aquaculture net. The blade spacer positions the propeller assembly a predetermined distance from the aquaculture net to protect the leading edge by distance and / or use of the wear resistant material.
Owner:LINDGREN PETER B

Cutting device for plastic composite coiled material

The utility model discloses a cutting device for a plastic composite coiled material, and relates to the technical field of plastic composite coiled material processing. The cutting device comprises a workbench. The workbench is provided with a guiding assembly, a conveying assembly, a cutting assembly, an adjusting assembly and a cutting assembly. The bottom end of the guide assembly and the top end of the workbench are fixedly mounted, so that the guide assembly guides and supports the composite coiled material; according to the composite material cutting device, the positions of the cutting assemblies are adjusted, so that the distance between the cutting assemblies is equal to the width needing to be cut, then the adjusting assembly is rotated to drive the cutting assembly fixed to one side to move downwards, the cutting end of the cutting assembly penetrates through a composite material, and then the width of the composite material can be adjusted; therefore, the cutting device for the plastic composite coiled material can cut composite materials with different widths and lengths, and the practicability of the cutting device for the plastic composite coiled material is improved.
Owner:BEIJING UNIDE RAILWAY TECH CO LTD

Plastic composite material, ethylene bisstearamide and preparation method and application thereof

The invention provides a plastic composite material, ethylene bis stearamide and a preparation method and application thereof, and relates to the technical field of high-molecular compounds and plastics. The plastic composite material is prepared from the following components: 200 to 380 parts of polyvinyl chloride, 1.5 to 3 parts of ethylene bis stearamide, 5 to 10 parts of plasticizer, 5 to 10 parts of coupling agent, 1 to 2.1 parts of lubricant, 1.5 to 3 parts of zinc stearate, 0.5 to 1.5 parts of barium stearate and 1 to 3 parts of nano montmorillonite. The lubricant is selected from at least one of pentaerythritol stearate and polyethylene wax. Ethylene bis stearamide is compounded with the plasticizer, the coupling agent, the lubricant and the nano montmorillonite, so that the mechanical property and the heat resistance of the plastic composite material are synergistically improved; in addition, the preparation method of the ethylene bis stearamide is improved, and the acid value and the amine value of the ethylene bis stearamide are reduced. The plastic composite material can be widely applied to plastic preparation in different fields.
Owner:GUANGZHOU CARDLO BIOCHEM TECH

A modified plastic compounding apparatus

This utility model discloses a modified plastic mixing device, specifically relating to the field of plastic mixing technology. It includes a mixing tank, with a mixing motor located in the middle of the upper end of the mixing tank. A small motor is located on the outer side of the upper end of the mixing tank, near the mixing motor. In actual use, by configuring the small motor, drive gear, equalization plate, support sleeve, guide protrusion, rotating gear, and adaptable sliding plate accordingly, an external control device can drive the small motor to rotate. The drive gear then drives the rotating gear to rotate, thereby rotating the equalization plate and support sleeve. When plastic granules are introduced into the mixing tank, the granules first fall onto the upper end of the equalization plate. As the equalization plate rotates, it evenly disperses different types of plastics inside the mixing tank, effectively increasing the mixing efficiency of the plastic granules and making the mixing more uniform.
Owner:ZHEJIANG ZHEKANG POLYMER MATERIALS TECHNOLOGY CO LTD

Four-piece combined flange plate

The utility model discloses a four-piece combined flange plate, which relates to the technical field of flange plates and comprises a first connecting flange plate and a second connecting flange plate. The second connecting flange plate is arranged below the first connecting flange plate, a first pipe is arranged on the inner sides of the first connecting flange plate and the second connecting flange plate, a second pipe is arranged on the right side of the first pipe, and a first connecting assembly is arranged on the inner side of the upper end of the first connecting flange plate; a second connecting assembly is arranged at the joint of the first connecting flange plate and the second connecting flange plate, and a butt joint protruding block is arranged at the lower end of the first connecting flange plate. The technical problems that the axial tensile strength of a pipe end connector is insufficient, the strength of a plastic composite pipe flange head connector is poor, construction and installation are not convenient, a pipe body to be connected needs to be sleeved with the plastic composite pipe flange head connector before use, the annular tensile strength and the axial tensile strength are reduced, and meanwhile the sealing performance is poor easily due to combined installation are solved.
Owner:ANHUI RUIYUAN PIPELINE CO LTD

Antistatic bulk molding compound composite material and method for producing the same

ActiveCN118956097BEpoxyGlass fiber
The present application relates to the technical field of bulk molding compound, in particular to an antistatic bulk molding compound composite material and a preparation method thereof; in order to enhance the antistatic performance and mechanical properties of the bulk molding compound, modified glass fiber material and carbon black material are added in the bulk molding compound respectively; after the surface of the glass fiber material is treated by low-temperature plasma, an epoxy group structure is introduced on the surface of the glass fiber material, so that the bonding strength between the glass fiber and the epoxy resin is improved, and a benzophenone structure and a silicon-oxygen bond structure are introduced in the crosslinking network of the epoxy resin, so that the impact resistance and the ultraviolet resistance of the epoxy resin are enhanced, and the service life of the bulk molding compound composite material prepared by the present application is improved.
Owner:HUIZHOU ZONGSHENG ELECTRONICS MATERIAL CO LTD +1

Fixed type plastic composite pipe reinforcing band ultrasonic welding machine

The utility model discloses a fixed ultrasonic welding machine for a reinforcing band of a plastic composite pipe, and belongs to the technical field of plastic base pipe forming. The center of the mounting plate is provided with a through hole for a base pipe to pass through, and a reinforcing belt is wound on the surface of the base pipe; the at least three ultrasonic welding mechanisms are evenly distributed on the mounting plate, each ultrasonic welding mechanism comprises a welding head, the welding heads are used for making contact with reinforcing belts on the surface of the base tube and applying pressure, and friction heat is generated on the joint faces between the reinforcing belts and the base tube or between the adjacent reinforcing belts for welding through high-frequency vibration of the welding heads; the sum of the contact perimeters of the welding heads and the base tube is larger than or equal to the perimeter of the base tube. As the reinforcing belt and the base pipe do not need to be preheated, the problem that gaps between adjacent belts are changed after winding due to the fact that the preheated reinforcing belt is heated and stretched under the action of tension is avoided, the problem that the base pipe is stretched and deformed due to heating in the forward traction process is also avoided, and the quality of the formed composite pipe is guaranteed.
Owner:NINGBO FANGLI TECH

Metallized plastic composite current collector and preparation method and application thereof

The invention belongs to the technical field of energy materials, and particularly relates to a metallized plastic composite current collector and a preparation method and application thereof. The metallized plastic composite current collector is prepared by selecting a first polymer with a melting point of 60-100 DEG C and a conductive filler to form a PTC compound, then blending the PTC compound with a second polymer with a melting point of 120-200 DEG C to form a thermal response polymer layer, and forming a metal layer on the surface of the thermal response polymer layer. The thermal response temperature range of the metallized plastic composite current collector is reduced to 60-100 DEG C, internal electrochemical reaction of the battery is cut off at a proper temperature, internal components and structure degradation of the battery is avoided, the battery is better protected, meanwhile, the metallized plastic composite current collector has good mechanical performance and interface stability in the processing and thermal response process, and the service life of the battery is prolonged. And the structure of the composite current collector is not damaged. Rapid and reversible thermal turn-off at a low temperature is realized, and the structural integrity at a high temperature is ensured at the same time.
Owner:HUAZHONG UNIV OF SCI & TECH +1

Plastic particle mixing device

The utility model discloses a plastic particle mixing device and relates to the technical field of plastic mixing. Comprising a base, and a supporting frame is arranged on the outer side of the base; and the stirring mechanism is arranged on the outer side of the supporting frame and used for mixing the plastic particles, the stirring mechanism comprises a storage part, a control part and a stirring part, the storage part is arranged on the outer side of the supporting frame and used for driving the plastic particles to turn over, and the stirring part is arranged in the storage part and used for stirring plastic. According to the plastic particle mixing device disclosed by the utility model, through the arrangement of the storage piece, the control piece and the stirring piece, the matching of the rotating frame, the fixed barrel, the fixed ring, the groove, the gear ring, the rotating rod, the stirring paddle and the gear is realized, so that various plastic particles are fully mixed in the mixing process; the problem that the material proportion of a local area of the plastic particles is unbalanced under the acting force of the stirring blades is solved, the mixing uniformity of the plastic particles is improved, and the quality stability of the mixed plastic particles and the product performance consistency are improved.
Owner:JIEYANG SHUANGZHAN PLASTIC CO LTD

Metal-plastic composite car lamp frame shell integrated injection molding device

ActiveCN119635944BRobot handPlastic materials
The application relates to the technical field of hollow piece production, and discloses a metal-plastic composite car lamp frame shell integrated injection molding device which comprises an injection molding machine, the inner part of the injection molding machine is respectively provided with a movable mold and a fixed mold, the outer part of the injection molding machine is provided with an external mechanical hand and an external cooling module, the outer surface of the movable mold is symmetrically provided with two fixing holes, the inside of the injection molding machine is provided with an injection molding assembly, the injection molding assembly comprises metal pipes with a number not less than two and extension pipes with a number not less than four, in the cooling process, the metal pipes are cooled from the inside to the outside based on the physical properties of the metal pipes, the above cooling mode makes the middle part of the plastic material shrink first due to the fact that the metal pipes are located inside the plastic material, the cooling mode changes the situation that the outer layer is solidified first due to the traditional cooling from the outside to the inside of a mold cavity, when the inside material shrinks, the inside material is not limited by the solidified outer layer material, so that the problem of cavities caused by inconsistent shrinkage is effectively prevented.
Owner:ZHEJIANG HENGDAO TECH

Composite intelligent monitoring cable bridge system for intelligent manufacturing and manufacturing method

The invention relates to the technical field of cable bridge manufacturing and intelligent manufacturing, and discloses a composite intelligent monitoring cable bridge system for intelligent manufacturing, which comprises a bridge body, an intelligent monitoring module, a data processing unit and a self-adaptive adjusting unit, the bridge body adopts a carbon fiber reinforced plastic and glass fiber reinforced plastic composite laminated structure, the intelligent monitoring module is integrated with a fiber grating sensor array, the sensor array is distributed at equal intervals along the longitudinal direction of the bridge, and the data processing unit comprises a microprocessor, a memory and a power management module. According to the system, through the composite lamination design of carbon fiber reinforced plastics (CFRP) and glass fiber reinforced plastics (GFRP), the fiber bragg grating sensing technology, the LSTM neural network algorithm and the fuzzy PID control strategy are combined, real-time monitoring and dynamic adjustment of the cable operation state are achieved, and the system is suitable for high-temperature, high-vibration, strong-electromagnetic-interference and other complex industrial environments.
Owner:ZHENJIANG SHENLONG ELECTRICAL FITTINGS CO LTD

Preparation method of steel skeleton plastic composite pipe and steel skeleton plastic composite pipe

The application discloses a preparation method of a steel skeleton plastic composite pipe and the steel skeleton plastic composite pipe and belongs to the technical field of pipes. The method is characterized in that: low-carbon steel wires are subjected to electrochemical etching to form a nano-scale porous structure, and are woven into a gradient porosity steel wire mesh with porosity gradually decreasing in the thickness direction of the pipe wall; the steel wire mesh is subjected to immersion in a molten mixed liquid containing maleic anhydride grafted high-density polyethylene and an initiator under ultrasonic vibration, so as to form a chemical bonding interface layer on the surface of the steel wire; and the steel wire mesh is sent into a co-extrusion die to fill high-density polyethylene melt under high pressure and is once composite formed to obtain a pipe blank, and the pipe blank is subjected to step temperature control cooling and heat treatment to obtain a finished product. The steel wire surface of the composite pipe is connected with the plastic matrix through a covalent chemical bond, and the steel wire end face at the pipe end is completely closed by the continuous plastic matrix. The application realizes synergistic effects in the aspects of interface bonding strength, corrosion resistance and thermal cycle stability.
Owner:JIANGSU LANGBO PIPELINE MFG CO LTD

Weft disc supporting structure for steel skeleton plastic composite pipe production

ActiveCN224147373Uprevent rotationReduce the size of the forceFilament handlingPlastic compoundingFastener
The utility model discloses a weft disc supporting structure for steel skeleton plastic composite pipe production, which relates to the technical field of steel skeleton plastic composite pipe production, and comprises a supporting seat, a weft disc coaxially sleeved on the supporting seat and capable of rotating on the supporting seat, a guide component coaxially arranged on the supporting seat, a locking component arranged on the guide component, and a connecting component arranged on the locking component. The weft disc can be locked and pressed on the supporting seat; the guide assembly comprises a roller end cover, the roller end cover is arranged on the supporting seat, a locking assembly is arranged on the guide column and penetrates through the roller end cover, and the fastener is arranged between the roller end cover and the guide column; the polygonal groove is coaxially formed in the bottom of the roller end cover, and the limiting disc is coaxially arranged at the bottom of the guide column and matched with the polygonal groove in an inserted mode. According to the weft disc supporting structure for steel skeleton plastic composite pipe production, common rotation of the guide column and the roller end cover can be achieved, influence on weft disc replacement time is avoided, in-place locking and pressing of the weft disc are achieved, and replacement of the weft disc can be facilitated.
Owner:ANYUAN PIPELINE IND CO LTD

Modified silicone oil for improving dispersibility of pigment as well as preparation method and application of modified silicone oil

The invention discloses modified silicone oil and a preparation method and application thereof, the modified silicone oil is prepared by simultaneously introducing vinyl silane and aromatic functional monomers into hydrogen-containing silicone oil and carrying out addition reaction under the action of a platinum catalyst to prepare a dispersing agent with coupling effect and steric hindrance effect. The dispersing agent can fully stretch in a plastic melt to form a three-dimensional barrier, so that pigment particles are effectively prevented from re-aggregation, and the uniformity and stability of the color are remarkably improved. A plastic composite material prepared from the modified silicone oil is free of pigment agglomeration, free of color powder points, small in color difference change, uniform in color distribution and small in color change after being subjected to high temperature and xenon lamp aging in the melt extrusion process, and shows excellent high temperature resistance and weather resistance; the composite material is suitable for the fields of automobile parts, household appliances, daily necessities and the like with high requirements on appearance and performance.
Owner:KAMELON (GUANGZHOU) ENERGY TECHNOLOGY CO LTD

Degradable low-smoke halogen-free flame-retardant cable

The utility model discloses a degradable low-smoke halogen-free flame-retardant cable, which comprises the following components from inside to outside in sequence: a conductor of which the surface is coated with an anti-corrosion coating; an insulating layer; the shielding layer comprises a composite structure of a metal net and a degradable plastic layer; the sheath layer comprises an inner layer and an outer layer, and the shielding layer adopts a separable metal net and degradable plastic composite structure. The metal net is a copper net or an aluminum net and provides good electromagnetic shielding performance; while the shielding effect is ensured, the degradability of the shielding layer is realized. In addition, the connection mode between the metal net and the degradable plastic layer facilitates separation of metal and plastic in the recycling process, and the recycling rate is increased.
Owner:ZHEJIANG HUAJIADA CABLE GROUP CO LTD

A polyurethane polyurea two-component coating composition, and a method for preparing and using the same

The present application relates to a kind of polyurethane polyurea two-component coating compositions, including component A and component B, component A includes 5-30 parts of polyamine resin, 40-70 parts of polyol resin, 10-35 parts of first solvent, 0.5-3 parts of ultraviolet light absorber, 0.5-2 parts of light stabilizer and 0.1-3 parts of additional auxiliary agent by weight;Component B includes 40-85 parts of isocyanate curing agent and 15-60 parts of second solvent;The weight ratio of component A and component B is between 1:10-10:1.The polyurethane polyurea two-component coating compositions provided by the present application has the characteristics of high solid content, low viscosity, high weather resistance and low temperature rapid curing, and can be applied to the surface treatment of different types of substrates such as metal, concrete, plastic and composite material.The present application also relates to a kind of preparation method of the above-mentioned polyurethane polyurea two-component coating compositions and a substrate based on the coating compositions.
Owner:NIPPON PAINT CHINA

Stator liner, stator, and method of manufacturing a stator liner

The invention relates to a stator lining (3) for an eccentric screw pump stator (1), comprising: a rotor receiving space (8) formed axially through the stator lining (3) from a suction end region to a pressure end region of the stator lining (3) with respect to a longitudinal central axis (L) of the stator lining (3); and at least one pressure chamber recess (17) which is spaced radially outward from the rotor receiving space (8) and which is open radially outward and / or at least one pressure chamber (24, 25) which is spaced radially outward from the rotor receiving space (8) and which is formed entirely within the stator liner (3); wherein the pressure chamber recess (17) and / or the pressure chamber (24, 25) are / is in communication connection with a pressure end region of the stator liner (3). In order to create a stator (1) that minimizes the return of the delivery medium to the suction side of the eccentric screw pump even under relatively high delivery pressure loads, the stator liner (3) is made of a material selected from the group consisting of at least one metal, at least one metal alloy, and at least one metal alloy. And at least one plastic or plastic composite having a hardness of at least 65 Shore D hardness.
Owner:拉尔夫·道恩海默

Die-casting and injection molding integrated forming equipment and forming method

The invention discloses die-casting and injection molding integrated forming equipment and a forming method. The die-casting and injection molding integrated forming equipment comprises a fixed mold plate and a movable mold plate, and a die-casting unit is integrally arranged on one side of the fixed mold plate; an injection unit is integrally arranged on one side of the movable template and synchronously moves along with the movable template; the die-casting unit and the injection unit are arranged in a bijection structure, and the high-strength molecular-level combined metal-plastic composite part is integrally formed through one-time die assembly of the die-casting unit and the injection unit. According to the die-casting and injection-molding integrated forming equipment, die-casting and injection-molding dual-process integrated forming is adopted, the dual processes are deeply fused, an aluminum alloy high-pressure die-casting technology and an engineering plastic precise injection-molding technology are integrated in the same machine table, and high-strength molecular-level combination of metal and plastic is achieved; assembling links of traditional multi-process manufacturing are reduced, the production period is shortened, and the manufacturing efficiency is improved; and an intelligent temperature control and pressure regulation system is adopted, so that high bonding strength of an aluminum-plastic interface is ensured, and material deformation and defects are avoided.
Owner:TEDERIC MACHINERY +1