79 results about "Heat resistant" patented technology

The invention relates to the technical field of aluminum alloy wire processing, and particularly discloses a high-modulus high-conductivity heat-resistant aluminum alloy material, an aluminum wire, a preparation method and a power transmission cable. According to the high-modulus, high-conductivity and heat-resistant aluminum alloy material provided by the invention, the nanoscale TiB2 particles and the micron-sized SiC particles are compounded in the aluminum alloy powder, a dual-reinforcement system is constructed, and the mechanical property and the electrical property of an aluminum conductor are synergistically improved. The invention further provides a preparation method of the high-modulus and high-conductivity heat-resistant aluminum conductor. According to the process, a multi-stage coupling plastic processing technology of hot extrusion, continuous rolling, drawing and surface treatment is adopted. The grain structure is refined through the dynamic recrystallization effect in the series of machining processes, oxidation film defects on the surface and in the structure are damaged through plastic deformation, the rigidity and the conductivity of the aluminum wire are further optimized, and the technical bottleneck that high modulus, high conductivity and heat resistance of traditional aluminum alloy are difficult to consider at the same time is effectively solved.

The invention discloses a diesel engine piston material, a diesel engine piston casting method and a diesel engine piston, and relates to the technical field of composites.The diesel engine piston material comprises, by weight, 12.0%-12.5% of Si, 5.6%-5.8% of Cu, 3.0%-3.4% of Ni, 0.1%-0.3% of Mg, 0.1%-0.3% of Mn, 0.4%-0.6% of Fe, 0.10%-0.14% of Ti, 0.10%-0.14% of V, 0.10%-0.14% of Zr, 0.02%-0.06% of Cr and the balance Al and alkali metal impurity elements. The high-strength and heat-resistant aluminum alloy material special for the diesel engine piston is obtained by taking the aluminum alloy as a base body and coordinating multiple alloy elements and accurately regulating and controlling the proportion of all the alloy elements, the material meets the long-term service requirements of the high-load diesel engine piston at the high temperature of 350 DEG C and under the explosion pressure of 20 Mpa of 107 times or above high-frequency reciprocating loads, and the service life of the high-load diesel engine piston is prolonged. And the working conditions of high detonation pressure and thermal load of the diesel engine piston are met, so that the high-temperature mechanical property, long-term service reliability and safety stability of the piston are improved.

The application discloses an alloy cushion block for a large walking beam heating furnace and a preparation method thereof, and the preparation method comprises the following steps: S1, determining the melting point of the alloy cushion block based on the atomic penetration depth of an alloy B containing FeO on multiple different alloy A with a melting point higher than that of the alloy B; S2, studying the load-bearing condition of the alloy cushion block to determine the required compressive strength; S3, designing the composition of the alloy cushion block; and S4, carrying out the industrial design of the alloy cushion block and starting smelting. Through reasonable alloy composition and production process design, the application provides a high-temperature heat-resistant alloy cushion block, improves the strength and melting point of the alloy cushion block, enables the alloy cushion block to maintain high strength at high temperature, solves the problem of FeO bonding in a molten state, reduces the phenomenon of heating furnace nodulation, and has universality and is suitable for various casting processes.

The utility model provides a heat-resistant multi-strand photovoltaic control cable, which relates to the technical field of photovoltaic control cables and comprises a plurality of cable bodies. When the photovoltaic control cable is used, the inner ring sleeve is arranged on the outer surface layer of the multi-strand photovoltaic control cable, so that the temperature generated in the working process of the interior of the multi-strand photovoltaic control cable can be transmitted to the outer ring sleeve through the inner ring sleeve, the contact surface with air can be increased by the outer ring sleeve and the annular pile cooling fins arranged on the outer ring sleeve and the surface of the outer ring sleeve, and the heat in the multi-strand photovoltaic control cable can be relieved; meanwhile, the space between the inner ring sleeve and the outer ring sleeve is partitioned into a plurality of cavities by a plurality of supporting blocks, and the plurality of cavities are communicated by a plurality of through holes to form a heat insulation layer, so that the internal temperature of the multi-strand photovoltaic control cable is prevented from being increased when sunlight directly irradiates the control cable, and the internal temperature of the multi-strand photovoltaic control cable has a relatively good heat-resistant effect; and the stability of the heat-resistant multi-strand photovoltaic control cable is improved.

A composite liquid guide cotton for a vaporizer includes: at least one heat resistant layer, at least one first isolation layer, at least one rapid liquid guide layer, and at least one second isolation layer that are stacked in sequence. The heat resistant layer contacts a heating body and comprises a high-temperature resistant material. A liquid guide rate of the rapid liquid guide layer is higher than a liquid guide rate of the first isolation layer and the second isolation layer.

A family of propylene-ethylene copolymers have been discovered can be readily utilized in high heat resistance applications and form adhesives with improved mechanical strength and heat resistance. More particularly, the propylene-ethylene copolymers have a particular propylene content, triad tacticity, Ring and Ball softening point, and crystallinity that provide copolymers that exhibit desirable high heat resistance, tensile strength, and elongation. Furthermore, the propylene-ethylene copolymers may be used to produce adhesives that exhibit excellent heat resistance characteristics and superior cohesive strength.

Multilayer films are disclosed. The multilayer film may include a core layer and a heat seal layer where the heat seal lay comprises a polypropylene copolymer and a polyethylene copolymer. The polypropylene copolymer of the heat seal layer has specific properties such as ethylene content and iCCD elution profile to contribute to the desirable properties of the film. The multilayer film can form effective heat seals, even when in contact with heated contents. The multilayer film can be formed into a bag where the bag is suitable for carrying hot or heated contents.

An improved portable cooking shield for enclosing a cooking device is presented. The portable cooking shield features a plurality of heat-absorbing side panels in an extended spaced-apart relationship and being pivotally coupled by collapsible support hinges. Heat resistant handles are provided for lifting the shield and for compressing the plurality of side panels into a flattened position. An upwardly extending lighting device port is provided for accommodating at least one lighting device for the cooking device.

The utility model provides an integral forming inductance of impact resistance and heat resistance, include: split type magnetic core structure, sectional type winding subassembly, composite insulating layer, elastic buffer layer, metal alloy shell, heat conducting medium filling layer, positioning clamping groove, reinforcing flange, high temperature resistance pin, sealing colloid, stress dispersion groove, temperature response coating, split type magnetic core structure is by upper magnetic core body a, lower magnetic core body b and magnetic gap adjusting component c is composed, the upper magnetic core body a and lower magnetic core body b are engaged through mortise and tenon structure, magnetic gap adjusting component c is detachable ceramic sheet, elastic buffer layer is by silicon base elastomer and carbon fibre braided layer alternative superposition constitutes. The utility model discloses three big core technologies of split type magnetic core dynamic regulation, three -level buffer energy absorption, gradient heat conduction insulation, solves the pain point such as temperature rise runaway, mechanical failure, parameter solidification of traditional inductance under extreme environment, especially applicable to the field of harsh reliability requirement such as aerospace power supply, high orbit satellite load, new energy automobile electric drive system.

The invention discloses a PC / PPSU alloy, which comprises the following components by weight: 23-55% of PPSU, 43-75% of PC, 0-3% of an auxiliary agent, and 0-15% of a filler, the weight-average molecular weight of PPSU is 20000-80000, and the molecular weight distribution width is 1.6-2.2; the melt index of the PC is 1-35 g / 10 min, and the condition is that the temperature is 300 DEG C and the weight is 1.2 kg. Through combination of PPSU and PC with specific contents, the PC / PPSU alloy has the characteristics of scratch resistance and high heat resistance of PPSU, and the defect that white lines are easily generated on the surface of an injection molded part due to poor processability of the PC / PPSU alloy can be improved.

This utility model discloses a high-temperature resistant aluminum core conductor, including a protective structure. An outer sheath is installed inside the protective structure, and a high-temperature resistant structure is installed inside the outer sheath. The high-temperature resistant structure includes an insulating layer inside the outer sheath, an anti-tensile rope inside the insulating layer, a main body installed on one side of the anti-tensile rope, a heat-resistant aluminum alloy round wire installed on the outside of the main body, a steel core installed in the middle of the main body, and an annealed aluminum strip on the outer wall of the steel core. When the heat-resistant aluminum alloy round wire is wrapped around the main body, the heat-resistant aluminum alloy round wire has excellent heat resistance, forming a heat-resistant protective layer that effectively blocks the direct impact of external high temperatures on the aluminum main body. This helps maintain the stability and reliability of the main body in high-temperature environments, extending its service life. The anti-tensile rope outside the main body can absorb and disperse stress, preventing conductor damage or breakage.

The application relates to the paint technology field and discloses a high-temperature-resistant paint and a preparation method thereof. Epoxy resin, a filler, a dispersing agent and a defoaming agent are added into a solvent, a curing agent is added after stirring, and the high-temperature-resistant paint is obtained. The curing agent is composed of a polyamide curing agent and UPy diamino diphenyl sulfone; UPy structure forms stable quadruple hydrogen bond action in the molecular chain bond of the epoxy resin, the crosslinking density of the epoxy resin is improved, when the epoxy resin is stressed, the quadruple hydrogen bond can be broken by absorbing energy at the same time, stress can be consumed and energy can be transmitted, the paint curing product is not damaged by stress, has good toughening effect, and the toughness of the paint film is improved. The heat-resistant diphenyl sulfone structure is introduced into the molecular chain of the epoxy resin, the high-temperature-resistant performance of the paint is improved, and the paint has higher thermal decomposition temperature.

The present invention provides a phosphorus-containing compound having the following formula (I): wherein R1, R2, R3, R4, R17, R18, R19, and R20 are as defined in the specification. The phosphorus-containing compound can improve the heat resistance and flame resistance of an application target, and is thus particularly suitable for the technical field of printed circuit boards.

The application provides a heat-resistant porous melt-blown material and a preparation method thereof, and comprises the following steps: S1: dissolving PLLA and PDLA in a DMC solvent, sufficiently dissolving, and then evaporating the DMC solvent to obtain a filter cake, and drying the filter cake to obtain SC crystal micro-powder; S2: mixing the SC crystal micro-powder, PLLA and a composite foaming agent, and then performing melt blending and granulation to obtain melt-blown master batches; and S3: performing melt-blown treatment on the melt-blown master batches to obtain the heat-resistant porous melt-blown material, high-efficiency preparation and uniform dispersion of SC crystals are realized under a low PDLA addition amount, meanwhile, the processability of the melt-blown process is considered, and the heat resistance of the material matrix and the structural thermal stability are synergistically improved.

The invention belongs to the technical field of composite materials, and provides a heat and humidity resistant PEEK composite material and a preparation method thereof, the heat and humidity resistant PEEK composite material comprises the following raw materials by weight: 85-110 parts of PEEK; 5 to 15 parts of polytetrafluoroethylene; 5 to 15 parts of carbon fiber; 5 to 10 parts of modified montmorillonite; 0.5 to 2 parts of a compatilizer; and 0.1 to 0.5 part of an antioxidant. The preparation method comprises the following steps: putting PEEK and polytetrafluoroethylene into a drying oven for drying, then adding the dried PEEK and polytetrafluoroethylene, carbon fibers, modified montmorillonite and an antioxidant into a high-speed mixer for mixing, and uniformly mixing to obtain a mixture; the preparation method comprises the following steps: mixing the raw materials, adding the mixture into a double-screw extruder, extruding and granulating, cooling, and drying to finally prepare the PEEK composite material, while maintaining excellent friction resistance and mechanical properties, the heat and humidity resistance is obviously improved, and the PEEK composite material has a wide application value.

The invention discloses a high and low temperature resistant polypropylene composite material as well as a preparation method and application thereof, and belongs to the technical field of high polymer materials. The composite material comprises the following components in parts by weight: 40-70 parts of polypropylene resin; 5-15 parts of a welding improver; 5 to 45 parts of glass fiber; 0.5 to 1.5 parts of an antioxidant; 3-8 parts of a compatilizer; 0.1-1 part of a release agent; 0.2 to 0.5 part of a heat-resistant agent; the thermal deformation temperature of the composite material is greater than or equal to 122 DEG C, the low-temperature simply supported beam notch impact strength is greater than or equal to 11KJ / m, and the composite material has high strength, high rigidity, excellent welding performance, high transparency and hydrolysis resistance.

The present application belongs to the technical field of aluminum alloy material structure manufacturing, and relates to a large high-strength heat-resistant aluminum alloy hub forge and a preparation method thereof. The method is suitable for preparing a large hub with a diameter (Φ500mm~Φ800mm) x depth (200mm~400mm) x outer wall thickness (20mm~50mm). Compared with a conventional hub, the present application obtains a preparation method suitable for Al-Cu-Mg-Ag alloy large hub forgings by optimizing alloy components, combining extrusion + forging compound breaking down, medium-temperature die forging, deep cryogenic treatment and other processes, so that the large hub forgings have excellent high-strength heat-resistant performance. The room temperature yield strength is higher than 450MPa, the tensile strength is higher than 500MPa, and the elongation is higher than 8%. The 150℃ high-temperature tensile yield strength is higher than 400MPa, the tensile strength is higher than 450MPa, and the elongation is higher than 10%. The 200℃ high-temperature tensile yield strength is higher than 350MPa, the tensile strength is higher than 400MPa, and the elongation is higher than 12%.

Flame and heat resistant polyurethane foam compositions for forming semi-rigid foams well suited for use as thermal and electrical insulation for batteries, especially Li-ion batteries, the foams formed therefrom, and the devices and components containing such foams.

A method of manufacturing an electrode plate includes applying an active material paste to a surface of a strip-shaped electrode foil to form an undried electrode plate, and drying the active material paste of the undried electrode plate to form an electrode plate having an electrode layer on the surface of the electrode foil and does not have the electrode layer on the back surface of the electrode foil. In the applying, the undried electrode plate is dried from the surface side while being conveyed in a longitudinal direction with the back surface of the undried electrode plate supported by a conveyor belt. The conveyor belt has a belt surface capable of supporting the back surface of the undried electrode plate, and the belt surface is composed of a heat-resistant surface-side resin layer that reduces heat radiation from the back surface of the undried electrode plate, over the entire circumference.

The utility model relates to the technical field A, and discloses a heat-resistant flame-retardant PVC (polyvinyl chloride) sheet, which comprises a first PVC body and a second PVC body, a splicing mechanism is arranged on opposite sides of the first PVC body and the second PVC body, the splicing mechanism comprises an inserting block and a damping block, and a splicing groove is arranged on the right side of the first PVC body. According to the heat-resistant and flame-retardant PVC sheet, the first PVC body and the second PVC body can be spliced through the splicing grooves and the inserting blocks, the effect that the first PVC body and the second PVC body are connected more stably is achieved, the first PVC body and the second PVC body can be further connected through the damping grooves and the damping blocks, and therefore the heat-resistant and flame-retardant PVC sheet has the advantages that the heat-resistant and flame-retardant effects are achieved. The first PVC body and the second PVC body are spliced more stably, dispersion during use is avoided, the problem of how to splice the first PVC body and the second PVC body more stably is solved, and the effect of avoiding dispersion during splicing can be achieved.

The present application relates to a low-cost iron-nickel-based heat-resistant alloy and a high-speed rolling method thereof, and belongs to the technical field of special alloy manufacturing. The present application solves the technical problems of cracking, short tool life, high energy consumption and low efficiency in subsequent solid solution treatment caused by uneven material temperature rise and cooling during high-speed rolling of the existing heat-resistant alloy. In the method of the present application, the heated heat-resistant alloy rolling stock is sequentially passed through the rough rolling, intermediate rolling and finishing rolling units. At least two cooling devices are arranged at the key positions in the later stage of the finishing rolling unit. The polyacrylamide aqueous solution containing specific particle size and proportion of aluminum oxide powder is used for intermittent jet cooling of the wire. The finished wire is directly put into the solid solution furnace for online solid solution treatment and water cooling. The present application realizes the integrated production of heat-resistant alloy wire from rolling to heat treatment with high efficiency, high quality and low energy consumption. The prepared wire has uniform structure and excellent performance, and is especially suitable for manufacturing engine valves.

This invention discloses a high-glass fiber reinforced MXD6 material with low fiber float and high flowability, its preparation method, and its applications. It relates to the field of polymer materials technology. The high-glass fiber reinforced MXD6 material comprises the following components by weight: 20-45 parts MXD6 nylon, 50-70 parts flat glass fiber, 0.1-1 parts antioxidant, 0.1-1 parts nucleating agent, 0.1-1 parts heat resistant agent, 0.1-1 parts lubricant, 0.5-2 parts color masterbatch, and 0.6-2 parts hyperbranched anti-float agent. The hyperbranched anti-float agent is composed of three hyperbranched compounds compounded and kneaded. This modification method improves the compatibility of MXD6 with high-content glass fiber, as well as the mechanical properties and gloss of the material. Furthermore, the prepared high-glass fiber reinforced MXD6 material is easy to injection mold and can be widely applied to applications such as replacing steel with plastics.

A flow component for a valve and related methods is disclosed herein. The flow component can include a component body formed from a metal matrix composite (MMC) material (e.g., heat resistant metal matrix composite). The MMC material can include between 70 wt. % to 95 wt. % Al, between 1 wt. % to 25 wt. % Si, and between 1 wt. % to 15 wt. % grain-refining material.

The invention discloses a high-heat-resistance composite coating diaphragm and a preparation method and application thereof.The high-heat-resistance composite coating diaphragm comprises a base diaphragm and a coating on the base diaphragm, the coating comprises a dispersing agent, solid electrolyte, multi-walled carbon nanotubes and styrene-butadiene rubber, the dispersing agent is carboxymethyl cellulose, and the solid electrolyte is sodium hydroxide. The solid electrolyte is at least one of an NASICON type solid electrolyte and a garnet type solid electrolyte. The three-dimensional network is built through the multi-walled carbon nanotubes, the gaps of the three-dimensional network are filled with the solid electrolyte, the thermal shrinkage rate of the diaphragm is effectively reduced, the multi-walled carbon nanotubes have high length-diameter ratio and surface inertia and can play a dispersion role in slurry, agglomeration of the solid electrolyte is prevented through the steric hindrance effect, and the solid electrolyte is effectively prevented from being agglomerated. Therefore, the overall ionic conductivity is improved.

The utility model provides a high bearing capacity heat resistant steel roller stable in rotation, which comprises a steel rod assembly and a roller body, an outer sleeve used for bearing materials is arranged on the outer side of the steel rod assembly, and the steel rod assembly is provided with a leveling assembly used for adjusting the rotation balance of the whole steel rod. The leveling assembly comprises a center shaft used for fixing and screw rods used for leveling, a plurality of screw rods used for leveling are welded to the outer wall of the center shaft, and each screw rod is in threaded connection with an anti-disengaging nut. When the roller body rotates, the leveling assembly installed in the roller body is taken out, then the position, namely the distance close to the middle shaft, of the anti-disengaging nut on the screw rod is adjusted, then the centrifugal force stability of the whole roller body during rotation is adjusted, and therefore the roller body is more stable during rotation.

A multilayer film is disclosed. The multilayer film may include a core layer and a heat seal layer, wherein the heat seal layer includes a polypropylene copolymer and a polyethylene copolymer. The polypropylene copolymer of the heat seal layer has specific properties, such as ethylene content and iCCD elution curve, to facilitate the desired properties of the film. The multilayer film can form an effective heat seal even when in contact with heated contents. The multilayer film may be formed as a pouch, where the pouch is adapted to carry hot or heated contents.

The invention discloses a low-hardness and heat-wear-resistant thermoplastic polyurethane elastomer material and a preparation method thereof. The polyester resin is prepared from the following raw materials: A) 60-90% of polyhydric alcohol; b) 10 to 35 percent of polyisocyanate; c) 3-15% of a micromolecular dihydric alcohol chain extender; and D) 0.05 to 1 percent of titanium cluster polyoxobenzoate. According to the invention, a small amount of titanium cluster polyoxobenzoate structure is introduced, and a compact reversible hydrogen bond network structure can be formed in TPU by virtue of excellent nano-scale dispersity and good compatibility after coordination modification, so that the low hardness of the material is maintained, and the heat-resistant friction performance of the material is remarkably improved. Meanwhile, under the condition of injection molding processing, due to the fact that chemical crosslinking is not formed and the internal plasticizing effect of the polyoxobenzoate structure is added, very good flowability and formability can be kept in a viscous flow state, and the polyoxobenzoate can be used in the fields of injection molding shoe materials, intelligent wearing, blending modification and the like.

A shelf extension assembly configured to be placed over and secured to the metal shelf of a propane / gas griddle or grill is described. The shelf extension assembly comprises a clip assembly that is attached to the metal shelf of the griddle and facilitates the attachment and removal of an extended shelf that covers and rests on the underlying metal shelf. The extended shelf is fabricated of materials that are heat resistant and have a relatively low thermo-conductivity allowing it to remain significantly cooler than the metal shelf.