30results about How to "Improve wear and heat resistance" patented technology

A tape which has enhanced heat resistance, flame retardancy, and wearing resistance and is suitable for use in bundling a group of electric wires which will be laid in a high-temperature environment. The tape is configured using the same yarns (10) each composed of high-function fiber filaments (11) and general-purpose fiber filaments (12), as a warp (3) and a weft (4). The high-function fiber filaments are superior to the general-purpose fiber filaments in heat resistance, flame retardancy, and wearing resistance. The high-function fiber filaments are of at least one kind selected from paraaramid fibers, polyarylate fibers, ultrahigh-molecular polyethylene fibers, glass fibers, and polyphenylene sulfide fibers. The general-purpose fiber filaments comprise at least one selected from polyesters, polyethylene, and polypropylene.

The invention discloses heat-resistant rare-earth magnesium alloy containing silicon, zinc and Gd(-Y), and a preparation method thereof. The alloy comprises the following components in percentage by weight: 10-20% of Gd, 0.5-6% of Y, 0.1-5% of Si, 0.1-5% of Zn, 0-1% of Zr, less than 0.02% of all impurity elements, and the balance of Mg. The magnesium alloy disclosed by the invention is obtained by smelting and subsequent heat treatment, is simple in process and high in production efficiency, and has excellent characteristics of high strength, high abrasive resistance, good plasticity and the like at 200-300 DEG C due to existence of silicon, zinc and high-content Gd(-Y) rare-earth elements.

The invention relates to the technical field of high-speed steel rolls, and in particular relates to a method for modifying a centrifugal composite casting high-speed steel roll outer layer, which is characterized in that when the outer layer high-speed steel smelting is completed and discharged, composite modificator is added into a steel ladle to modify the high-speed molten iron, the adding amount of the composite modificator is 1.0-2.0% of the weight of the molten iron, and the reaction temperature is 1500-1600 DEG C. The composite modificator comprises the following chemical constituents by weight percent: 50-55% of FeV50, 50-55% of rare earth ferrosilicon alloy FeSiRe21, 20-25% of silicon barium alloy FeBa5Si60 and 5-10% of Al. Compared with the prior art, the method has the advantages that casting grains are thinned, the states of chromium compounds and carbide are improved, fine spherical MC type carbide is uniformly dispersed and distributed, so the wear resistance and heat resistance of the high-speed steel roll outer layer are improved, and the millimeter rolled metal of the roll is increased by 25%-30% comparatively.

The invention discloses a heat melting high-wear-resistant anti-pollution yellow traffic marking material and a preparation method thereof. The preparation method is used for preparing the traffic marking material in the technical field of traffics. The heat melting high-wear-resistant anti-pollution yellow traffic marking material comprises the following components: petroleum resin, modified rosin resin, di-n-butyl phthalate, glass beads, an ethylene vinyl acetate copolymer, microcrystalline wax, refined white mineral oil, quartz sand, quartz powder and cadmium yellow. The traffic marking material prepared by using the preparation method not only can be used for improving the wear resistance and anti-pollution capacity of a traffic marking, but also can be used for increasing the adhesive force of the traffic marking.

The invention discloses an integral type hard alloy cutter for materials difficult to machine and a preparation method thereof. The material of the hard alloy cutter comprises the following components, by weight, 16-23 parts of titanium niobium alloy, 26-34 parts of copper molybdenum alloy, 22-28 parts of iron-nickel alloy, 4-5 parts of silicon sulfide, 9-11 parts of graphene, 4-6 parts of rare earth, 20-28 parts of graphite carbon fiber powder, 10-18 parts of cubic boron carbide micro powder, 15-18 parts of silicon dioxide, 9-12 parts of unsaturated resin, 5-9 parts of tungsten silicide and 5-7 parts of molybdenum carbide. The integral type hard alloy cutter has the beneficial effects that the rare earth, the graphite carbon fiber powder, the cubic boron carbide micro powder, the silicondioxide and the like are added, and therefore hardness and strength of the cutter are improved greatly; abrasion resistance and heat resistance of the cutter are also improved remarkably; the servicelife of the cutter is long, and practical cost is low; and pollution of the machining process is little.

The invention relates to lubricating grease for an automobile safety belt system. The lubricating grease comprises the following components in parts by weight: 72-90 parts of base oil; 0.5 to 3 partsof lithium hydroxide; 5 to 12 parts of 12-hydroxystearic acid; 1.7 to 3.5 parts of a binary acid; 1.2 to 3 parts of boric acid; 0.6 to 7 parts of nano silicon dioxide; 0.4 to 2 parts of a friction reducing agent; wherein the base oil comprises at least one of mineral base oil, synthetic base oil or naphthenic base mineral oil. The lubricating grease provided by the invention is composite lithium-based lubricating grease, and as an innovation point of the invention, the lubricating grease is composite with a nano silicon dioxide material, especially a modified nano silicon dioxide material, andis a novel lubricating grease prepared by adding an antifriction agent. A safety belt in an automobile safety belt system is frequently and repeatedly stretched, the lubricating grease added with thefriction reducing agent is small in friction coefficient and good in stability, the overall wear resistance, heat resistance and other properties of the lubricating grease are improved through the modified nano silicon dioxide, and the use effect is good when the lubricating grease is applied to the automobile safety belt system.

The invention discloses a composite asphalt modifier. The composite asphalt modifier comprises main materials and assistants, the percentage of the main materials account foris 75-80 percent, and the percentage of the assistants is 20-25 percent. A preparation method of the composite asphalt modifier is as follows: according to the demand of a customer, the proportions of the compositions in the main materials and the assistants and the proportions of the main materials and the assistants are determined via tests, and then the mixed main materials and the assistants are independently packed so as to obtain the finished product. The composite asphalt modifier provided by the invention is low in production investment, simple in modification process and better in stability after modification, and has a very good popularization value.

The invention discloses a high-hardness heat-resistant coating for anti-dazzle glass. Raw materials of the high-hardness heat-resistant coating comprise organosilicon modified epoxy resin, alkyd resin, polychloroacetic acid, modified vanadium dioxide, a styrene elastomer, nanometer tin antimony oxide, a polysiloxane prepolymer, styrene, o-phenylenediamine, acetylacetone, acrylate, nanometer titania, alumina, mica powder, sodium dodecylbenzenesulphonate, benzophenone, a leveling agent, an antifoaming agent, a dispersing agent, a thickener, a stabilizer and an adhesive. The coating for the anti-dazzle glass has good photopermeability and excellent wear resistance and heat resistance.

The invention discloses an automotive engine piston made of a novel material and belongs to the field of automotive engine components. The novel material is rapid set high-silicon aluminum alloy, a certain novel tissue structure characteristic, namely ultra-fine microstructure is obtained through the rapid set technique, the solid solubility limit of the alloy is improved, the heights of components are even, segregation is nearly or completely avoided, a novel metastable phase is formed, and defect density is improved. The material has the advantages of being light, high in strength, high in corrosion resistance and heat resistance, low in thermal expansivity and the like, the solid solubility of Si in an aluminum matrix can be improved, grains are refined, the material is well matched with the matrix, and the performance of the alloy is improved remarkably.

An AlMnTiFe alloy used for deoxidizing and alloying in smelting steel contains Al (15-60 wt.%), Mn (3-45), Ti (10.5-25) and Fe (rest). It can improve properties of steel, such as plasticity, toughness, alloying level and resistance to corrosion and high temp.

The invention belongs to the technical field of resin modification, and particularly relates to modified POM copolymer resin and a preparation process thereof. The POM copolymer resin is prepared from homopolyformaldehyde, copolyformaldehyde, a composite nucleating agent, rubber particles, a fiber filler and a stabilizer. The composite nucleating agent comprises a mixture of an inorganic nucleating agent and an organic nucleating agent, the inorganic nucleating agent comprises one or more of nano silicon dioxide, nano calcium carbonate and boron nitride, and the organic nucleating agent comprises one of melamine formal, polyamide and a carbon nanotube. The resin is reinforced and modified through a re-checking nucleating agent, rubber particles and a fiber filler, the crystallinity of the resin is improved, the toughness of the resin is improved, the impact strength, flexibility, rigidity and creep resistance of the resin material are remarkably improved, the wear resistance and heat resistance of the resin material are improved, and the used material has the characteristic of low VOC; and the modified POM copolymer resin disclosed by the invention is applied to the field of automobiles and can meet the ultralow emission performance required by the automobile market.

The invention discloses a plastic product used for a children toy. The plastic product is composed of acrylonitrile, butadiene, a benzene polymer, surface-modified carbon fiber, a colouring agent and a fixing agent according to a certain proportion, and the colouring agent is extracted from natural tomato. The acrylonitrile-butadiene-benzene polymer are taken as the main materials, the usage of acrylonitrile increases the hardness of the product and increases the wear resistance and heat resistance of the product, the usage of butadiene enhances the smoothness and elasticity of the product, and the usage of the benzene polymer keeps good moulding. The key point of the plastic product is characterized in that the colouring agent is extracted from tomato and is natural, so that influence of pigment safety due to long-time contact with the toy by children can be avoided.

The invention discloses a shoe sole production process. The shoe sole production process comprises the following steps that P1, a rubber material is selected according to mass percent for later use; P2, a degreased material is obtained; P3, a mixed raw material is obtained; P4, a crushed material is formed; P5, the crushed material is put into a melting furnace again, and heating is carried out toa molten state to obtain a uniform material; P6, a shoe sole blank is obtained; P7, a finished blank is obtained; and P8, the finished blank is put into a constant-temperature chamber, heat preservation is carried out to 30 DEG C-35 DEG C, constant-temperature shaping is carried out, constant-temperature shaping lasts for 24 hours-36 hours, and production of the shoe sole can be completed. Zinc oxide powder is added to the interior of the rubber material, then secondary smashing and melting are carried out, the mixing uniformity can be effectively improved, the wear resistance and heat resistance of the shoe sole are further enhanced, hardening and embrittlement are avoided, the product quality is improved, meanwhile, by adopting a reasonable proportion, the structural performance is enhanced, the anti-aging capacity is high, the production is facilitated, and the popularization and the use are convenient.

The invention discloses a high-conductivity copper alloy rotor and a preparation method thereof. The high-conductivity copper alloy rotor is prepared from the raw materials in percentage by weight: 0.1-2% of chromium, 0.1-0.6% of zirconium, 0.02-0.03% of lithium, 0.02-0.03% of manganese, 0.01-0.05% of rare earth metals, and the balance of copper. The invention also discloses a preparation method for the high-conductivity copper alloy rotor. The preparation method has a simple process and can reduce production costs. The obtained high-conductivity copper alloy rotor has good electrical conductivity, high-temperature hardness and stability, fully meets the requirements of use, prolongs the service life, and effectively solves the problems of poor electrical conductivity, easy wear and shortservice life in the prior art.

The invention discloses a composite material capable of improving abrasion resistance and heat resistance of a steel casting and a production technology. The composite material includes siliceous sand, bauxite, kyanite, rutile and zircon sand, magnesia and olivine. The granularity of the siliceous sand, the granularity of the bauxite, the granularity of the kyanite, the granularity of the rutile and zircon sand, the granularity of the magnesia and the granularity of the olivine all range from 0.212mm to 10mm. According to the composite material capable of improving the abrasion resistance andheat resistance of the steel casting and the production technology, abrasion resistant particles are added into cast steel, and the abrasion resistance of the casting is improved; when the composite material is used on the surface of a product, the tenacity of the whole product can also be improved; and no heat treatment operation is required in the course of working. Compared with a traditional composite material and a production technology, the composite material capable of improving the abrasion resistance and heat resistance of the steel casting and the production technology have the advantages that production cost is lower and mass popularization can be facilitated. Production cycle can be shortened to a great extent, and no residual sand can be bonded on the surface of the casting easily. Due to the fact that molten iron makes contact with the sand, cooling speed is high, white ironing is facilitated, and the hardness of the product is further improved. Meanwhile, the using amount of the molten iron is decreased and production cost is reduced.

The invention relates to the technical field of mechanical steel machining, and discloses a method for improving wear resistance and heat resistance of steel. The multi-element alloying method is mainly utilized, manganese, nitrogen and the like are used for replacing nickel, the nickel content is reduced, and meanwhile rare earth elements are added; the affinity of the alloy elements with carbonand nitrogen is quite high, carbide and nitride particles which are distributed in a highly dispersed manner and are extremely high in hardness are formed in the alloy smelting process, the stabilityof the particles is quite high, and the particles cannot be completely dissolved even at the temperature of 1,300 DEG C; and the surface treatment technology is further adopted, oxidation resistance of the steel is improved, the highest heat resisting temperature of the heat resisting steel is improved to 1,200 DEG C-1,300 DEG C from original 900 DEG C-1,000 DEG C, and therefore the application field of the heat resisting steel is greatly expanded.

The invention relates to the technical field of graphene heating plate preparation, in particular to a graphene heating plate preparation method which comprises the steps that a cement foaming plate is selected as a panel base material, fire-resistant and wear-resistant coatings are attached to the front end and the rear end of the cement foaming plate through a film covering device, and then the rear portion of the cement foaming panel is fixedly connected with a metal heat dissipation plate through screws; the rear end of the metal heat dissipation plate is sprayed with a graphene heating layer, the rear end of the graphene heating layer is provided with an electrode plate, finally, the outer side of the graphene heating layer and the outer side of the electrode plate are sequentially wrapped with an insulating layer, a lower light film and a PCB heat insulation film from inside to outside, and the outer side of the PCB heat insulation film is sleeved with a PC/ABS alloy shell. The fireproof and wear-resistant layer is matched with the cement foaming plate to isolate most of heat, so that the heat dissipation plate can only feel slight heat on the surface in the use process, meanwhile, the wear-resistant and heat-resistant performance is high, most of heat in the device is dissipated through the ventilation grooves, and use is safer and more stable.