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216results about How to "High temperature resistance has" patented technology

High-temperature-resistant bismaleimide resin carrier structure adhesive film and preparation method thereof

The invention provides a high-temperature-resistant bismaleimide resin carrier structure adhesive film and a preparation method thereof, and relates to a high-temperature curing high-temperature-resistant structure adhesive. The invention aims to solve the problems that the conventional bismaleimide adhesive film does not have high temperature-resistant grade and high toughness. The adhesive film consists of bismaleimide resin, a technical modifier, a toughening modifier, a compatibilizer and a thixotropic agent. The preparation method comprises the following steps of: performing prepolymerization on the bismaleimide resin and the technical modifier to obtain a bismaleimide resin prepolymer; mixing the bismaleimide resin prepolymer, the toughening modifier, the compatibilizer and the thixotropic agent uniformly by a mechanical blending method to prepare an adhesive material; and preparing the adhesive by using a three-roller coating film-making machine under the film-forming assistance of the carrier. The adhesive has the characteristics of high-temperature resistance and high toughness, wherein the glass-transition temperature reaches above 280 DEG C and the honeycomb roller peeling strength reaches about 75.0 N.m / m. The adhesive is applied to adhesion of metal or composite material high-temperature-resistant structure members in the field of aerospace.
Owner:INST OF PETROCHEM HEILONGJIANG ACADEMY OF SCI

Flush packaged pressure sensor with high temperature resistance and high frequency response

The invention relates to a flush packaged pressure sensor with high temperature resistance and high frequency response, which comprises a pressure chip. The pressure chip is combined with a glass ring; the glass ring is adhered to a metal substrate; a high-temperature switching plate and a high-temperature switching circuit compensation plate are respectively fixed in the metal substrate; the pressure chip is connected with the high-temperature switching circuit compensation plate through a gold wire lead; the high-temperature switching plate is connected with the high-temperature switching circuit compensation plate through a high-temperature lead; a four-core high-temperature lead is connected with the high-temperature switching circuit compensation plate; the metal substrate is connected with a metal shell; the metal shell is connected with a wire-fixing cap; the four-core high-temperature lead passes through the metal shell and a hole of the wire-fixing cap; the pressure chip senses pressure from an external medium and converts a pressure signal into a voltage signal; and the voltage signal passes through the gold wire lead, the high-temperature switching plate and the high-temperature lead, is transmitted to the high-temperature switching circuit compensation plate, and is output through the four-core high-temperature lead after being compensated. The pressure sensor has the advantages of high temperature resistance and high frequency response, and is used for measuring dynamic or static pressure signals.
Owner:XI AN JIAOTONG UNIV

High-temperature-resistant nylon yarn material for 3D printing, preparation method thereof and method for performing 3D printing by applying same

The invention relates to the technical field of 3D printing, in particular to a high-temperature-resistant nylon yarn material for 3D printing, a preparation method thereof and a method for performing 3D printing by applying the same. The high-temperature-resistant nylon yarn material contains the following raw materials in parts by weight: 90-100 parts of nylon resin, 1-10 parts of a reinforcing agent, 0.3-0.6 part of an antioxidant, and 0.1-0.3 part of a lubricant, wherein the reinforcing agent is organic modified montmorillonite. According to the invention, the high-strength nylon resin is used as a base material, the organic modified montmorillonite, the antioxidant and the lubricant are used for performing physical modification on the nylon resin, and the synergistic action among the components with different proportions is adjusted to improve the contractility and increase the thermal denaturation temperature of the nylon resin, so that the obtained high-temperature-resistant nylon yarn material for 3D printing is high in strength, low in shrinkage rate, low in warping deformation degree, and low in forming accuracy, and is high-temperature-resistant, and a support can be removed easily.
Owner:GUANGDONG SILVER AGE SCI & TECH CO LTD

GWIB (general way interface bus) high-temperature-resistant cable and preparation process thereof

The invention discloses a GWIB (general way interface bus) high-temperature-resistant cable and a preparation process thereof. The GWIB high-temperature-resistant cable and the preparation process thereof are characterized in that a nickel-clad copper alloy line conductor is twisted by a cable wire twisting machine, inner insulating layers of two polyimide composite belts (PTFE(polyterafluoroethylene)/PI(polyimide)/PTFE(polyterafluoroethylene)) which are lapped by a lapping machine are arranged on the periphery of the nickel-clad copper alloy line conductor, a high-temperature-resistant alkali-free glass fiber outer insulating layer which is woven by a weaving machine is disposed on the periphery of each inner insulating layer, a lapping layer which is lapped by a mica tape is disposed onthe periphery of each outer insulating layer, and a high-temperature-resistant alkali-free glass fiber woven protecting layer which is woven by the weaving machine is arranged on the periphery of each lapping layer. The GWIB high-temperature-resistant cable and the preparation process thereof have the advantages that lapping and sintering process is adopted to realize insulation, combined insulation is adopted, the cable has excellent electric performances, mechanical performances and environmental resistance, is resistant to high temperature of 400 DEG C, is high-temperature-resistant, low-temperature-resistant, mould-resistant, salt-air-resistant, moist-heat-resistant and flexible, and is small in outer diameter and light in weight, and the like.
Owner:NANJING QUANXIN CABLE TECH

Yield 345 MPa grade fire-resistant steel plate and production method thereof

ActiveCN106282800AImprove high temperature tempering stabilityImprove high temperature strengthAlloy elementBainite
The present invention discloses a yield 345 MPa grade fire-resistant steel plate and a production method thereof. The production method comprises the steps of heating, rolling, and tempering. In the step of rolling, a recrystallization zone plus non-recrystallization zone two-stage conditioned rolling process is adopted. The steel plate is composed of the following chemical components in percentage by weight: 0.10-0.12% of C, 0.20-0.40% of Si, 1.43-1.53% of Mn, less than or equal to 0.008% of P, less than or equal to 0.003% of S, 0.15-0.25% of Mo, 0.020-0.030% of Nb, 0.020-0.50% of Al, 0.020-0.030% of V, and the balance of Fe and inevitable impurities. Low C is determined in the chemical component design of the steel plate in the method to ensure favorable weldability of the steel plate; the microalloying design of Nb and V, accompanied with such alloy elements as Mo, is adopted to ensure matching of strength and toughness and high temperature resistance of the steel plate; and a TMCP plus tempering process is adopted to obtain a composite structure of bainite and ferrite. The method provided by the present invention is used to produce the steel plate through the thermo mechanical control processing plus tempering process; the obtained yield 345 MPa grade TMCP plus tempering type fire-resistant steel plate has the characteristics of low carbon equivalent and crack sensitivity index, low yield ratio, favorable low temperature impact strength, good weldability, and the like.
Owner:WUYANG IRON & STEEL

Method and device for preparing gradient metal ceramic composite coating on surface of bias current plate

The invention discloses a method for preparing a gradient metal ceramic composite coating on the surface of a bias current plate.The method comprises the steps that bottom layer raw material powder is introduced into a supersonic plasma spraying system, and under the effect of spraying current, the bottom layer raw material powder is sprayed to a matrix through primary airflow; middle layer raw material powder is introduced into the supersonic plasma spraying system, and under the effect of the spraying current, the middle layer raw material powder is sprayed to the matrix through the primary airflow; surface layer raw material powder is introduced into the supersonic plasma spraying system, and under the effect of the spraying current, the surface raw material powder is sprayed to the matrix through the primary airflow.The invention further discloses a device for preparing the gradient metal ceramic composite coating on the surface of the bias current plate.The method and device have the properties such as high temperature corrosion resistance, thermal shock resistance, high temperature erosion resistance, normal temperature salt-spray corrosion resistance and abrasion resistance, and have the advantages that the bonding strength of a bottom layer in the coating is high, and the heat conductivity is good.
Owner:ACADEMY OF ARMORED FORCES ENG PLA

Anti-corrosion, anti-wear and high-temperature-resistant electromagnetic shield powdery coating and preparation method of same

The invention relates to an anti-corrosion, anti-wear and high-temperature-resistant electromagnetic shield powdery coating and a preparation method of same, wherein the powdery coating is prepared from: 25-90 parts of a fluorosilicon material powder, 5-30 parts of hollow glass microbeads, 5-30 parts of polyaniline powder, 0-5 parts of a compatibilizer, 0-5 parts of a crosslinker, 0.1-1 part of aflatting agent, 0.1-1 part of a defoaming agent, 0.1-1 part of a brightening agent, and 0.1-1 part of a charging additive. The preparation method includes the steps of: according to the ratio, weighing the raw materials and uniformly mechanically mixing the raw materials, feeding the mixed raw materials into a twin-screw extruder to extrude the raw materials at 80-200 DEG C; and tabletting, pulverizing and sieving the product to obtain the anti-corrosion, anti-wear and high-temperature-resistant electromagnetic shield powdery coating. The material is good in anti-corrosion and anti-wear performances, is high-temperature-resistant, is high in strength and low in density, is low in dielectric constant and dielectric damage, can be extensively applied to the industrial fields such as weaponry, information technology and others requiring the anti-corrosion, anti-wear and high-temperature-resistant properties and electromagnetic shield.
Owner:成英

Special high temperature-resistant coating on outer wall of tobacco-curing furnace and preparation method thereof

The invention discloses a special high temperature-resistant coating on an outer wall of a tobacco-curing furnace, which consists of the following components according to parts by weight: 30-40 parts of organic silicon resin, 5-10 parts of aluminium paste, 8-12 parts of titanium white, 30-40 parts of mixed stuffing, 0.5-1.5 parts of organic bentonite, 2-4 parts of PM, 1-3 parts of PMA (Propylene Glycol Monomethyl Acetate), and 4-6 parts of absolute ethyl alcohol, wherein the mixed stuffing consists of the following components according to parts by weight: 35-45 parts of low-melting point glass powder, 10-20 parts of hollow ceramic microspheres, 10-20 parts of zinc phosphate, 5-15 parts of aluminum tripolyphosphate and 18-22 parts of talcum powder. The special high temperature-resistant coating on the outer wall of the tobacco-curing furnace mainly has the advantages that a viscosity number reaches 85s, the percentage of solid reaches 65%, surface dry only needs 16 minutes, hard dry only needs 6 hours, the thermal endurance is strong, and the coating is not stripped for 6h at 500 DEG C. The coating has the advantages of high temperature resistance, rust prevention, quick drying, heat insulation, environmental protection and the like, can satisfy the use requirements on the outer wall of the tobacco-curing furnace, and is especially applicable for the tobacco-curing furnace.
Owner:无锡市南雅化工有限公司

High-temperature-resisting heating composite fabric and preparation method thereof

The invention discloses a high-temperature-resisting heating composite fabric. The high-temperature-resisting heating composite fabric comprises a moisture-absorption heating layer and a high-temperature-resisting protection layer, wherein the moisture-absorption heating layer and the high-temperature-resisting protection layer are compounded to form an integrated structure through a double-point coating; the moisture-absorption heating layer is made of moisture-absorption heating fibers; the moisture-absorption heating fibers are composite fibers formed by loading heating nanoparticles on surfaces of hollow moisture-absorption fibers; a nano heating layer is further loading on one face, which is compounded with the high-temperature-resisting protection layer, of the moisture-absorption heating layer; the high-temperature-resisting protection layer is formed by blending carbon fibers and Kevlar fibers. The invention further provides a preparation method of the high-temperature-resisting heating composite fabric; the high-temperature-resisting heating composite fabric is prepared through preparing the nanoparticles, preparing nano gel, preparing the moisture-absorption heating fibers, preparing a fabric layer, loading the nano heating layer, preparing the composite fabric and metering and packaging; the high-temperature-resisting heating composite fabric has excellent far infrared heat accumulation and temperature raising performance and high-temperature-resisting performance and has relatively good heat absorption and heating effect and protection effect.
Owner:平湖市新保纺织科技有限公司

High temperature and high pressure resistant alkali-free aluminosilicate glass for high pressure liquidometer

The invention discloses high temperature and high pressure resistant alkali-free aluminosilicate glass for a high pressure liquidometer, and is characterized in that the high temperature and high pressure resistant alkali-free aluminosilicate glass for the high pressure liquidometer comprises the oxide components by the mass percentage: (55-65)% of SiO2, (14-25)% of Al2O3, (3-8)% of B2O3, (5-12)% of CaO, (4-10)% of MgO, (3-8)% of BaO, (0.2-0.5)% of As2O3, (0.2-0.5)% of Sb2O3, (0.1-0.3)% of NaNO3, and (0.2-0.5)% of ZrO2. The glass contains no alkali metal oxides in the composition, has the advantages of high temperature resistance, high pressure resistance, high tenacity, high Young modulus, good chemical stability, suitable expansion coefficient of physical tempering, high transparency and the like, and is applied in requirements of high temperature and high pressure resistant glass view windows for harsh work condition environments of high temperature and high pressure steam liquidometer observation windows, high pressure pipeline view mirrors, deep-sea exploration equipment observation windows and the like in steel metallurgy, petrochemical engineering, thermal power plants and other industries.
Owner:南京神童特种玻璃技术有限公司

Inorganic coated sand and preparation process thereof

The invention discloses inorganic coated sand. The inorganic coated sand comprises raw materials of, by weight, 70-100 parts of raw sand, 20-40 parts of resin binders, 20-30 parts of dolomite powder,5-10 parts of sulfonation lignin fibers, 10-20 parts of thermoplastic phenolic resins, and 7-42 parts of high temperature resistance additives. The invention further discloses a preparation process for the inorganic coated sand. The preparation process comprises the steps that the high temperature resistance additives is mixed and then poured into a grinding machine, and the high temperature resistance additives are grinded into a powder mixture; the dolomite powder, the sulfonation lignin fibers, and the thermoplastic phenolic resins are added into the powder mixture A to be mixed, and then poured into a stirring tank to be stirred at a high speed; the resin binders are added into a mixture B, mixed and fully stirred; the raw sand is added into a mixture C, and the mixture C after being mixed is poured into a mixing mill to be mixed; and the inorganic coated sand is obtained after a mixture D is sieved. The preparation process is simple in operation and low in cost, and it is guaranteed that compositions of the raw materials can be fully mixed. The inorganic coated sand has high temperature resistance and high strength, and the stability of the inorganic coated sand is effectivelyimproved.
Owner:柳州柳晶环保科技有限公司

Resin-based powder metallurgy steel fiber friction material used for vehicle and production method thereof

The invention discloses a method for producing a resin-based powder metallurgy steel fiber friction material used for vehicle. The method comprises the following steps: uniformly mixing a matrix powder material and a forming agent, dumping a mixture in a die for compacting the mixture to obtain several elongated rods, compacting the elongated rods, separating the rods, putting the rods in a sintering furnace, heating the material under condition of introduction of nitrogen or hydrogen to obtain a copper-based powder metallurgy friction material; shearing the material, crushing the material, and sieving the material; uniformly mixing 10-20% of nitrile rubber-modified phenolic resin, 20-40% of the copper-based powder metallurgy friction material, 15-30% of steel fiber, 5-15% of an abrasive, 10-20% of a lubrication material, and 5-20% of a filling material; performing hot press molding, cooling the material, and discharging. According to the enhancement effect of the steel fiber, by combining the characteristics of high temperature resistance, low abrasion of the copper-based powder metallurgy friction material as well as good toughness and low hardness of the resin-based composite friction material, the obtained material has the characteristics of high temperature resistance, low abrasion, good flexible performance and low hardness.
Owner:SOUTH CHINA UNIV OF TECH
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