36results about How to "Good wear resistance and heat resistance" patented technology

The invention discloses a wear-resistant and heatproof modified polyurethane rubber cable material which comprises the following raw materials: modified polyurethane, acrylate rubber, ethylene-propylene-diene monomer, nitrile butadiene rubber, epoxy resin, polyether glycol, toluene diisocynate, polyvinyl alcohol, diisobutyltin dilaurate, polyvinyl chloride, hydroxyl-terminated polybutadiene, hydroxyl-terminated polyalcohol, isocyanate, vinyltriethoxysilane, dibutyltin dilaurate, silicone oil, a carbon nanotube, organic modified montmorillonoid, nano alumina powder, talc powder, bamboo carbon fiber, chlorinated paraffin, silicon dioxide, zinc oxide, stearic acid, nano aluminum hydroxide, a flame retardant, an anti-aging agent, a plasticizer, an antioxidant and an accelerant. The modified polyurethane rubber cable material disclosed by the invention has excellent wear-resistant and heatproof properties.

The present invention is directed to an image-fixing member which has excellent heat-resistance, wear resistance, and mold releasability and which performs heating or pressurizing for fixing an image on a recording medium. The preset invention also provides an image-fixing apparatus and image-forming apparatus using the image-fixing member. The image-fixing member of the present invention has a surface layer formed from a heat-resistant resin a nitrogen-containing heat-resistant principal chain segment and a side chain segment having a polysiloxane structure. The heat-resistant resin can also be contained in other portion than the surface layer.

A wide-spectrum electromagnetic shielding light window comprises a host material, a first metal mesh and a second metal mesh, and is characterized in that the first metal mesh and the second metal mesh are metal meshes with periodic structures, and are inlaid in the host material of the light window. The wide-spectrum electromagnetic shielding light window has the advantages that high-frequency electromagnetic waves and low-frequency electromagnetic waves are simultaneously shielded, wide-spectrum electromagnetic shielding is realized, the electromagnetic shielding efficiency is high, and the light window is wear-resistant and heat-resistant. Moreover, the wide-spectrum electromagnetic shielding light window is applicable to wide-spectrum electromagnetic shielding in the fields of remote sensing and telemetry, medical diagnosis, secure communication and space flight and aviation.

This invention relates to a brake strap of blended fibrage, which belongs to braking material field of mechanical apparatus. The present brake strap comprises the following defects: environmental contamination, harm to human's health, bad frictional behavior, rough manufacturing technique, bad textile performance, low product density, small strong force, fissility, easy attrition, no adaptability to modernization equipment. In order to settle these problems, the invention provides a brake strap of blended fibrage with multilayer, and its characters are following: including stock straps and adhesive material, many core-spun single yarn of blended fibrage, which contains a wire, twisted into twine and braided into said stock straps, selecting thermoplastic phenolic resin as adhesive material, osmosizing fully into braided brake strap with multilayer. The invention comprises the following merits: good textile performance, various fibre mixing fully, homogeneous wire distribution, dense textile texture, high product density, burliness, strong force, good flexible performance, logical friction coefficient, good abradability and heat-durability, flexibility and diversification, satisfying the need of power transmission, deceleration and braking of various mechanical equipment, safe reliability, no environmental contamination and harm to human's health in the process of production and application.

The invention discloses modified titanium dioxide grain, a super-hydrophilic transparent thin film and a preparation method thereof. In the invention, a ball mill is used as a modification tool; chloroacetic anhydride is used as a modifier, is added into the titanium dioxide grain through a mechanical and chemical method and is bonded with a hydroxyl group on the surface of the titanium dioxide grain with a chemical bond through mechanical stirring, vibration and collision of ball milling of the ball mill; then the prepared grain is reacted with water in a high-energy ball mill so as to prepare the hydroxyl group-modified titanium dioxide grain; finally, the grain is added into polymer in a ball milling mode to prepare suspension; the suspension is coated on a glass slide and then thermal curing is performed to obtain the super-hydrophilic transparent thin film. The super-hydrophilic transparent thin film prepared by the invention has the advantages of superior wear resistance and heat resistance, high mechanical strength, high impact resistance capacity, optical performance, anti-ultraviolet capacity and convenience in cleaning.

The invention discloses a wear-resisting, heat-resisting and acid-alkali resistant modified rubber sealing element which comprises modified sulfonated polyethylene rubber, butadiene styrene rubber, diphenyl phosphoryl chloride, hydrobromic acid tripolycyanamide, sulfur, barium sulfate, low-density polyethylene, polystyrene, asbestos fibers, talcum powder, trioctyl trimellitate, dioctyl phthalate, phenolic resin, accelerants DM, accelerants M, lead oxide, magnesium oxide, stearic acid, vaseline, anti-aging agents NBC, auxiliaries and diphenyl ketone. The wear-resisting, heat-resisting and acid-alkali resistant modified rubber sealing element has excellent wear resistance, heat resistance and acid-alkali resistance.

The invention belongs to the technical field of material chemistry, and relates to UV-curable environment-friendly nail polish and a preparation method thereof. The nail polish is composed of the following components in parts by weight: 30-60 parts of environment-friendly nail polish resin, 40-60 parts of a pigment, 0.05-0.5 part of a wetting dispersant, 0.01-0.5 part of a defoaming agent, 0.05-0.5 part of a levelling agent, and 0.1-2 parts of essence. The prepared nail polish has the characteristics of a fast curing speed, good storage stability, a high gloss, health and environmental protection without organic solvents, and the preparation method provided by the invention is environmentally friendly, simple, practical, non-toxic and odorless.

The invention discloses an oil-resisting cable sheath material. The oil-resisting cable sheath material is composed of raw materials including rubber, butadiene rubber, chloroprene rubber, NBR1965 (nitrile-butadiene rubber 1965), paraffin, PVC (polyvinyl chloride), coumarone, nano-diamond, pottery clay, barite powder, sulfur, sulfur dichloride, asphalt, dimethyl silicone, dibutyl phthalate, silane coupling agent A-151, reinforcing filler, softening agent, TMTD (tetramethylthiuram disulfide) accelerant, anti-aging agent, activating agent and vulcanization accelerant. The invention also discloses a preparation method of the oil-resisting cable sheath material. The oil-resisting cable sheath material is excellent in oil-resisting performance, long in service life and good in wear-resisting and heat-resisting performance.

The present invention provides a sintered metal friction material that has excellent wear resistance, heat resistance even at high load and has a higher friction coefficient while maintaining a friction coefficient and wear resistance that are hard to decrease, and has a reduced content of copper of less than 5 mass %. There is provided a sintered metal friction material characterized in that the sintered metal friction material comprises a sintered material of a friction material composition, the friction material composition comprises matrix metals and a friction modifier, the matrix metals comprise following 20 to 40 mass % of iron powder, 20 to 40 mass % of nickel powder, 0.5 to 10 mass % of zinc powder, 0.5 to 5 mass, of tin powder, 0.5 to 4 mass % of copper powder and 0.5 to 5 mass % of sintering assist powder.

The invention discloses a wear-resistant antibacterial shoe material and a preparation method thereof. The wear-resistant antibacterial shoe material is prepared from the following components in parts by weight: 60-70 parts of ethylene-propylene-diene monomer, 12-18 parts of polyvinyl alcohol, 12-15 parts of hydroxypropyl methyl cellulose, 5-8 parts of fibroin, 3-5 parts of polyvinyl butyral, 2-4 parts of zinc diricinoleate, 1-3 parts of titanium dioxide, 1-3 parts of gamma-trimethoxysilylpropanethiol, 1-2 parts of methylisobutylketone, 0.5-1 part of pentaerythritol stearate, 0.5-1 part of methylisothiazolinone and 0.02-0.2 percent of isophorone diamine. The invention also provides a method for preparing the wear-resistant antibacterial shoe material.

A wide-spectrum electromagnetic shielding light window comprises a host material, a first metal mesh and a second metal mesh, and is characterized in that the first metal mesh and the second metal mesh are metal meshes with periodic structures, and are inlaid in the host material of the light window. The wide-spectrum electromagnetic shielding light window has the advantages that high-frequency electromagnetic waves and low-frequency electromagnetic waves are simultaneously shielded, wide-spectrum electromagnetic shielding is realized, the electromagnetic shielding efficiency is high, and the light window is wear-resistant and heat-resistant. Moreover, the wide-spectrum electromagnetic shielding light window is applicable to wide-spectrum electromagnetic shielding in the fields of remote sensing and telemetry, medical diagnosis, secure communication and space flight and aviation.

The invention relates to a color rubber synchronous belt and a preparation method thereof. The synchronous belt comprises a synchronous belt skeleton and a rubber sheet attached to the outer surface of the synchronous belt in a wrapping manner, wherein the raw material of the rubber sheet comprises the following components in parts by weight: 20 to 40 parts of saturated Buna-N rubber, 30 to 50 parts of thiol chloroprene rubber, 20 to 40 parts of chlorinated butadiene styrene rubber, 4 to 8 parts of methacrylic acyloxy silane, 30 to 50 parts of reinforced resin, 5 to 6 parts of cross-linking agent, 2 to 6 parts of burnishing master batch, 0.5 to 1.5 parts of curing agent, 8 to 12 parts of plasticizer, 1 to 3 parts of anti-aging agent, 3 to 7 parts of telechelic polymer and 5 to 7 parts of homogeneous agent. Through adding various colors of burnishing master batch, the color of the synchronous belt is different from the black color in the past, and is more bright and eye-catching, and better wear-resisting and heat-resisting performances are realized.

The invention aims to provide a PVC (polyvinyl chloride) rubber formula applied to sound-insulation cotton. According to the PVC formula applied to the sound-insulation cotton, a PVC raw material and calcium powder are taken as the main raw materials, a foaming agent and a plasticizer are adjunctively added, butadiene-acrylonitrile rubber is added to enable that the wear and heat resistances are good and the binding powder is strong, silicone rubber is added to enable that the high temperature resistance and the air permeability are good, a fire retardant is added to resist flame, and an infrared reflection pigment is added to emit and radiate infrared rays in sunlight; therefore, high temperature generated by irradiation is avoided, performances are excellent, and the PVC rubber formula is suitable for the sound-insulation cotton.

The invention discloses a metal composite material, and relates to metal materials. The metal composite material comprises, by weight part, 25 to 30 parts of iron, 14 to 18 parts of copper, 15 to 20 parts of aluminum, 9 to 12 parts of zinc, 3 to 5 parts of silver, 2 to 4 parts of magnesium, 2 to 4 parts of manganese, 0.5 to 1.0 part of tin, 0.3 to 0.5 part of tungsten, 7 to 9 parts of non metal heat conduction particles, 2.5 to 4 parts of a rare earth element, 5 to 8 parts of metal fibers and 4 to 7 parts of synthetic resin. Various raw materials are selected, the cooperative effect of the rawmaterials is used, the formula is optimized, the advantages are integrated, it is ensured that the material has the good heat conduction, the higher toughness, good wear resistance, good corrosion resistance, excellent machining performance, and higher heat resistance and wear resistance, the higher requirement of different fields for the different properties of an alloy material is met, and industrial development is promoted.

The double-metal centrifugal composite brake drum is characterized in that an outer layer is made of high-strength medium-carbon low-alloy steel, firstly, a medium-carbon low-alloy steel cylinder is manufactured through a centrifugal casting method, a composite brake drum outer-layer steel shell is machined through die forging, and then the outer-layer steel shell is fixed to a centrifugal machine; the inner layer and the outer layer are in good metallurgical bonding, the outer layer is high in strength and good in toughness, the inner layer is high in strength and good in wear resistance and heat resistance, the phenomena of roller breakage and cracking do not occur in the using process, the service life is prolonged by more than two times compared with a single gray cast iron brake drum, and the service life is prolonged by more than two times. The method has good economic and social benefits in popularization and application.

The invention discloses a spirally wound PVC hose with an inner composite enhancement layer and for sanitary ware, and a preparation method thereof. A raw material formula of the PVC hose comprises ahard material component, a soft material component and an inner composite layer material component. The preparation method comprises the following steps: respectively mixing the hard material component, the soft material component and the inner composite layer material component; after mixing, respectively heating and mixing the above three components in a high-speed mixer; then respectively putting the three components into a cooling mixer for cooling; after cooling and discharging, respectively putting the three components into three plastic extruders for heating, melting and extruding so asto respectively extrude a soft coating layer material, a hard core layer material and a soft inner-wall composite coating layer material; co-extruding the materials, which have been extruded by the three extruders, into a composite die, and extruding material strips; and finally producing the spirally wound PVC hose with the inner composite enhancement layer and for the sanitary ware by adoptinga spiral winding compounding method. The PVC hose of the invention has good heat resistance, abrasion resistance, flexibility and aging resistance and high strength, flatness and sanitation performance, and are greatly improved in safety and sanitation performance.

The invention discloses a preparation method of a zinc oxide gas desulfurizing agent. The preparation method comprises the following steps of: weaving fiber filaments into a three-dimensional full-five-direction woven part with beamed yarns by adopting a four-step three-dimensional weaving technology; mixing a Zn(NO3)2.6H2O solution with the concentration of 0.10-0.25 mol / L and an NH3.H2O solutionwith the volume fraction of 25% according to any proportion to obtain a hydrothermal solution; putting the obtained three-dimensional full-five-direction woven part into the hydrothermal solution, and carrying out hydrothermal reaction in a room-temperature environment to generate a zinc oxide nano structure; and carrying out high-temperature roasting treatment on the generated zinc oxide nanostructure to obtain the zinc oxide gas desulfurizing agent. The process route of the desulfurization material is simple and easy to implement, and can meet the performance requirements of desulfurizationagent industrialization; and the desulfurizing agent adopts a fiber material with high flexibility and rich porosity as a carrier to construct a multistage micro-pore structure of the desulfurizing agent, so that the adsorption capacity and desulfurization reaction activity of the desulfurizing agent can be improved.

A sintered alloy having superior heat resistance and superior wear resistance and also having corrosion resistance against salt damage that may occur in cold-weather regions, and a production method therefor, are provided. The sintered alloy consists of, by mass %, 32.4 to 48.4% of Cr, 2.9 to 10.0% of Mo, 0.9 to 2.9% of Si, 0.3 to 1.8% of P, 0.7 to 3.9% of C, and the balance of Fe and inevitable impurities, and it has a density ratio of not less than 90% and includes carbides that are dispersed in a matrix of a metallic structure thereof.

The invention discloses a spirally wound PVC hose with an inner composite reinforcing layer for sanitary ware and a preparation method thereof. The raw material formula of the spirally wound PVC hose includes a hard material component, a soft material component and an inner composite layer material component. Mix the hard material component, soft material component and inner composite layer material component respectively, place them in a high-speed mixer for heating and mixing, then place them in a cooling mixer for cooling, and put them into three Heat and melt extrusion in a plastic extruder, respectively extrude the soft cladding layer material, hard core layer material and inner wall composite coating layer soft material, and the extruded materials of the three extruders are co-extruded into a composite mold , Extrude the material strip, and finally use the spiral winding compound method to produce the spiral wound PVC hose with the inner composite reinforcing layer for sanitary ware. The product of the invention has good heat resistance, wear resistance, flexibility, aging resistance, high strength, flatness and hygienic performance, and greatly improves the safety and hygienic performance of the hose product.

The invention belongs to the technical field of generator manufacturing, and discloses a stator core of a wind generator. The stator core of the wind generator is prepared by the following processes of stacking an iron-based amorphous alloy material into a preformed part, heating the preformed part to 600 DEG C, carrying out heat preservation for 90 minutes, cooling the preformed part to a room temperature and dipping the preformed part into an adhesive; and heating the adhesive to 90 DEG C, carrying out heat preservation for 6 hours and taking out the preformed part. The stator core has abrasive resistance, low energy consumption and loss and a good application prospect.

The invention relates to a manufacturing process for a glass-magnesium decorative plate. The glass-magnesium decorative plate is composed of a substrate plate and melamine impregnated paper, wherein the substrate plate is a glass-magnesium flat plate; and the melamine impregnated paper is decorative paper impregnated by melamine glue. The manufacturing process disclosed by the invention comprises the following steps of: impregnating the high-brightness decorative paper, pre-processing the glass-magnesium flat plate, pressing and sticking the glass-magnesium flat plate at a high temperature, so as to obtain the glass-magnesium decorative plate. The manufacturing process disclosed by the invention is easy to operate. The surface of the manufactured decorative plate is attractive in color. The glass-magnesium decorative plate has the special performances of being environment-friendly, energy-saving, light in weight, fireproof and the like and is widely applied in public places, such as suspended ceilings, indoor partition walls and door plates, as well as applied in high-grade places, such as office buildings and entertainment places.

An electrically-conductive material containing Ag in an amount of 10 mass % or more and 70 mass % or less, Pd in an amount of 30 mass % or more and 90 mass % or less, Ni in an amount of more than 5 mass % and 45 mass % or less, and inevitable impurities. A ratio of a Ni content (mass %) to a Ag content (mass %) (Ni (mass %) / Ag (mass %)) is 0.1 or more and 5.0 or less, metal structures include a AgPd alloy phase and a PdNi alloy phase, and a volume ratio of the PdNi alloy phase is 18 vol % or more and 80 vol % or less. Ni is added in a high concentration to a AgPd alloy, and the amount of PdNi alloy phases generated as separate phases is controlled to strengthen the entire alloy.

The invention relates to a method for preparing a porous TiO2 film with the phase separation principle, in particular to a method for preparing a transparent super-hydrophilic porous TiO2 film for a solar thermal power generation reflector.The method is characterized by including the following steps that 1, a glass substrate is cleaned and dried ready for use; 2, TiO2 sol is prepared; 3, a TiO2 film is obtained with a spin-coating method; 4 coated glass obtained in the step 3 is placed into a muffle furnace and heated to be at 100 DEG C-200 DEG C at the speed of 1 DEG C / min-3 DEG C / min, the temperature is preserved for 10 min-30 min, the coated glass is then heated to be at 400 DEG C-550 DEG C at the speed of 2 DEG C / min-4 DEG C / min, the temperature is preserved for 1 h-8 h, then the coated glass is subjected to furnace cooling to be at the room temperature, and the transparent super-hydrophilic porous TiO2 film for the solar thermal power generation reflector is obtained.According to the film prepared with the method, the contact angle with water in the natural state is smaller than 5 degrees, the transmittance is higher than 80%, and high cleaning capacity and the anti-fog performance are achieved.

The invention relates to the technical field of welding rod research and preparation, and discloses a heat-resistant welding rod with excellent crack resistance. The alloy system selected can significantly improve the crack resistance and heat resistance of the welding rod by using the casting infiltration process, and the thermal conductivity is between 17- 19W / (m K) range, thermal expansion coefficient is 5.5‑6.0×10 ‑6 / °C range, the prepared electrode is easy to start the arc, the arc burns stably, is not easy to break the arc, has good re-starting performance, less spatter, no large particle explosion, easy slag removal, good weld shape, uniform weld seam, and surface Fine scales, stable melting speed, less dust generation and smoke, good adaptability to position welding, less redness of the drug skin, excellent crack resistance, excellent wear resistance and heat resistance, and has a relatively high level of application in engineering applications. High economic benefit.

The invention discloses a high-toughness anti-cracking insole which is doped with a polyamide fiber material, and due to the fact that polyamide fibers are added in the mixing process of the insole, the polyamide fibers are high in strength, large in elongation, good in elasticity and excellent in abrasion resistance and heat resistance, the toughness of the insole is greatly improved, due to the elasticity of the polyamide fibers, the shoes are more comfortable to wear, and high toughness and comfort can be achieved while the cushioning effect is achieved so as to adapt to high-strength exercises.

The invention discloses an anti-cracking rubber outsole, which is doped with a polyamide fiber material, and compared with the prior art, the anti-cracking rubber outsole provided by the invention has the advantages that the polyamide fiber is added in the internal mixing process of the rubber outsole, so that the polyamide fiber is high in strength, large in elongation, good in elasticity and excellent in wear resistance and heat resistance; the elasticity of the rubber outsole is greatly improved, the problem that the rubber outsole is bent many times in the long-term walking process, and the outsole is prone to cracking is solved, and the elasticity of the rubber outsole and the elasticity effect of the polyamide fiber are added, so that the shoe sole is more comfortable to wear.

The invention relates to a method for strengthening a surface of a metal roller by adopting an electro-spark deposition method and a plasma fusion covering method. The metal roller is processed in an electro-spark deposition way and a plasma fusion covering way, so that the problems for improving the hardness, abrasion resistance and impact resistance of the surface of the roller and prolonging the service life of the metal roller can be effectively solved. The method comprises the following steps: performing fusion covering of alloy powder onto the surface of the roller by utilizing non-oxidized plasma beam to form a molten alloy coating, depositing WC ceramic hard alloy by utilizing the electro-spark deposition way on the basis of the plasma fusion covering coating to form a composite coating integrating the electro-spark deposition and plasma fusion covering. The method is simple and practical, the electro-spark deposition and the plasma fusion covering composite coating is firmly combined with a substrate, the thickness of the coating is large, so that the surface hardness, compactness, heat resistance and abrasion resistance of the roller are good, and the service life is long; by adopting the composite coating, the price of the iron-nickel alloy powder is low, the thickness of the coating is large, the abrasion resistance and corrosion resistance are good, the hardness and strength are high, and the abrasion and heat resistance is excellent.

The invention discloses modified titanium dioxide grain, a super-hydrophilic transparent thin film and a preparation method thereof. In the invention, a ball mill is used as a modification tool; chloroacetic anhydride is used as a modifier, is added into the titanium dioxide grain through a mechanical and chemical method and is bonded with a hydroxyl group on the surface of the titanium dioxide grain with a chemical bond through mechanical stirring, vibration and collision of ball milling of the ball mill; then the prepared grain is reacted with water in a high-energy ball mill so as to prepare the hydroxyl group-modified titanium dioxide grain; finally, the grain is added into polymer in a ball milling mode to prepare suspension; the suspension is coated on a glass slide and then thermalcuring is performed to obtain the super-hydrophilic transparent thin film. The super-hydrophilic transparent thin film prepared by the invention has the advantages of superior wear resistance and heat resistance, high mechanical strength, high impact resistance capacity, optical performance, anti-ultraviolet capacity and convenience in cleaning.

A hard coating includes a three kinds of layers that are alternately laminated. The three kinds of layers consist of a single composition layer and two kinds of nanolayer-alternated layers. The single composition layer is constituted by one of an A composition (nitride of AlCrα), a B composition (nitride of AlTiCrβ) and a C composition (nitride of AlCr(SiC)γ). The two kinds of nanolayer-alternated layers include nanolayers which are alternately laminated and which are constituted by two of three combinations consisting of a combination of the A composition and B composition, a combination of the A composition and C composition and a combination of the B composition and C composition. The single composition layer has a thickness of 0.5-1000 nm. Each of the nanolayers constituting the two kinds of nanolayer-alternated layers has a thickness of 0.5-500 nm, and each of the two kinds of nanolayer-alternated layers has a thickness of 1-1000 nm.