41results about How to "Give full play to wear resistance" patented technology

The invention relates to a five-membered hard alloy solid solution, a metal ceramic cutter and a preparation method thereof. The five-membered hard alloy solid solution adopts the chemical formula of (W0.26-0.33Ta0.19-0.25Ti0.44-0.54)(C0.70-0.79N0.20-0.29). The preparation method comprises the following steps: respectively weighing 32-37 parts of WC, 27-32 parts of Ta2O5, 19-24 parts of TiO2 and 10-15 parts of carbon black powder by weight, performing ball milling, then drying to obtain mixed material powder, pressing into a blank, transferring to a vacuum reactor, performing a carbonation reduction reaction for 1.5-2.5h in a N2 atmosphere and at the temperature of 1600-1800 DEG C, and then performing a solid solution reaction for 3-5h in an N2 atmosphere and at the temperature of 1800-1900 DEG C to obtain (W, Ta, Ti)(C, N) five-membered hard alloy solid solution powder. The five-membered hard alloy solid solution prepared by the preparation method provided by the invention is high in solid solubility, low in oxygen content and excellent in performance and can greatly improve the performance of the cutter; a metal ceramic cutter material prepared from the five-membered hard alloy solid solution can obtain excellent mechanical properties.

The invention provides a high-wear-resistance polyurethane shoe material which is prepared from the following components in parts by weight: 35-55 parts of polytetrahydrofuran, 25-45 parts of toluene diisocyanate, 5-15 parts of chain extender, 2-5 parts of nano silicon nitride, 0.5-2 parts of coupling agent, 0.2-1 part of heat stabilizer, 0.1-0.5 part of foaming agent and 0.5-1 part of catalyst. The invention also provides a manufacturing method of the high-wear-resistance polyurethane shoe material. The polyurethane shoe material provided by the invention has favorable wear resistance.

The invention relates to the field of vehicle component processing, and provides a manufacturing method of a vehicle brake disc, wherein the brake disc comprises a body disc and two friction rings, the manufacturing method comprises the following steps of: casting two friction rings by adopting a cast iron material; preparing a casting mold and a core mold, wherein the core mold and the two friction rings are respectively fixed in corresponding positions in a mold cavity; pouring molten aluminum alloy into the cavity to form the brake disc; carrying out heat treatment on the brake disc, wherein the inner surface of the friction rings jointed with the body disc is a rough surface, so that the body disc and the friction rings can be embedded into each other. The production method of the invention can be used for manufacturing an aluminum alloy body disk and a cast iron friction ring, and can fully give play to the wear resistance, high friction and high temperature resistance of the castiron by the combination of two materials of cast iron and aluminum alloy, meanwhile, the aluminum alloy material can fully reduce the overall mass of the brake disc, so that the mass of the spring isreduced, and the operation stability of the vehicle is improved.

The invention discloses an adhesive material for a laminated composite bonding transition layer of hydrogenated nitrile rubber and unsaturated non-polar rubber and a preparation method of the adhesivematerial. The adhesive material for the transition layer comprises the following components in parts by weight: 60-70 parts of carboxyl nitrile rubber, 30-40 parts of natural rubber, 20-40 parts of general carbon black, 10-20 parts of white carbon black, 45-50 parts of silane coupling agent, 4-6 parts of tackifying resin, 5-8 parts of zinc oxide, 1-2 parts of stearic acid, 3-3.5 parts of accelerator and 1-1.5 parts of valcanizer.

The invention provides a high-wear-resistance nitrile rubber composite cable material. The high-wear-resistance nitrile rubber composite cable material is prepared from components in parts by weight as follows: 100 parts of nitrile rubber, 4-5 parts of an accelerant, 2-2.5 parts of an antioxidant, 8-13 parts of a fire retardant, 10-15 parts of filler, 1.5-2 parts of a coupling agent, 5-10 parts of a plasticizer, 1-1.5 parts of a vulcanizing agent, 2.5-3 parts of an anti-aging agent, 6-8 parts of modified compound zirconia, 4 parts of zinc oxide and 2 parts of stearic acid. The invention further provides a preparation method of the nitrile rubber composite cable material. The wear resistance of the nitrile rubber composite cable material is very high.

The invention relates to lanolin-rubber gloves with a skin care effect. Each rubber glove is prepared from the components, i.e., a rubber matrix A and a rubber matrix B which are in the mass ratio of 1.7: 1, wherein the rubber matrix A consists of natural rubber, lanolin, vinyl silicone oil, a cross-linking agent, a vulcanizing agent and an accelerant, and the rubber matrix B consists of butadiene-acrylonitrile rubber, lanolin, an anti-aging agent, a plasticizer, a diluent, glycerine, aloe raw juice, snail raw juice, rose essential oil and geranium essential oil. According to the lanolin-rubber gloves with the skin care effect, hands can be better cared while users use the gloves.

The invention discloses a novel high-strength wear-resisting mooring rope. The novel high-strength wear-resisting mooring rope comprises an inner 12-strand mooring rope body and 12 outer polyester strands, wherein the 12-strand mooring rope body is composed of a central column, an inner layer and an outer layer, the inner column is a rubber column, the inner layer is interwoven from a plurality ofbearing ropes which are composed of a plurality of S-directionally twisted tensile ropes and a plurality of Z-directionally twisted tensile ropes, and the tensile ropes are mixed and twisted by polyester, nylon and fibrous ultrahigh-molecular-weight polyethylene. The novel high-strength wear-resisting mooring rope has the advantages of being lower in elongation, safer to use and higher in stability and gives full play to the tenacity and strength of high-performance polyethylene fiber and the wear-resisting, corrosion-resisting and uvioresistant properties of polyester fiber.

The invention relates to a connection method of silicon carbide ceramics based on liquid phase sintering, which comprises the following steps: (1) mixing silicon carbide powder, a sintering aid, a dispersant, a binder and a solvent to obtain suspension slurry; the sintering aid is AlN powder and Y2O3 powder; and (2) uniformly spreading the obtained suspension slurry on the to-be-connected surface of the first silicon carbide ceramic to obtain a slurry layer, attaching the to-be-connected surface of the second silicon carbide ceramic to the slurry layer, fixing the to-be-connected surface of the second silicon carbide ceramic by using a clamp, and finally realizing connection of the silicon carbide ceramics in a normal-pressure sintering furnace, preferably, the temperature of the liquid phase sintering is 1600-2000 DEG C, the heat preservation time is 0.5-5 hours, and the atmosphere is inert atmosphere, more preferably argon; wherein the pressure applied by the clamp is 1 to 10 MPa.

The invention relates to the technical field of abrasion-resistant plates, in particular to a preparation technology of an improved flame retardant abrasion-resistant plate. The abrasion-resistant plate prepared through the technology comprises a flame retardant layer, abrasion-resistant posts and a reinforced plate body. A layer of adhesive is arranged between the flame retardant layer and the reinforced plate body. The material of the flame retardant layer is a glass-magnesium-plant-fiber composite flame retardant plate material; the material of the abrasion-resistant posts is an aluminum oxide ceramic material; the material of the reinforced plate body is an abrasion-resistant steel plate material; a plurality of mounting holes are formed in the flame retardant layer in an arrayed mode,and the abrasion-resistant posts are mounted in the mounting holes in a matched mode; a layer of fire retardant is arranged on the outer surfaces of the abrasion-resistant posts, threaded holes are formed in the bottom ends of the abrasion-resistant posts and the reinforced plate body correspondingly, counterbores are formed in the lower ends of the threaded holes located in the reinforced platebody, and screws used for reinforcing and fixing the abrasion-resistant posts and the reinforced plate body are mounted in the threaded holes and the counterbores; and a layer of fire retardant is arranged at the bottom of the reinforced plate body. The preparation technology provided by the invention is good in fire retardant performance, and good in practical value and popularization value.

The invention discloses a preparation method of nanometer cutting element iron-based magnetic fine throwing powder. First, the atomized iron powder is impacted into a honeycomb micro-involute mold at a high speed by using cold air-driven impact technology, and the mold is vibrated at the same time, and then the obtained double involute The open-line dent iron powder, nano-zirconia powder and dispersant are put into the ammonium hydrogen phosphate solution, and the nano-powder is evenly arranged on the dent of the iron-based powder by a water-bath heat collecting and stirring device, and then filtered, washed, dried, and finally The nano zirconium dioxide is adhered to the iron-based powder for quenching treatment, and finally the nano-cutting element iron-based magnetic fine polishing powder is obtained. This method has high control precision of cutting element array, strong process stability and repeatability, and can realize high performance and long life of iron-based magnetic fine polishing powder.

The invention discloses a preparation method of iron-based magnetic grinding powder. Firstly, high temperature oxygen injection pitting treatment is carried out on atomized iron powder; then annealingvibration is carried out to remove oxide impurities; a powder seeding device is used for uniformly dispersing iron powder on the surface of an alphas aluminum oxide lattice carbon fiber screen, and the screen is subjected to reciprocating vibrating to make the alumina adhere to the surface of the iron powder; and finally the powder is degreased, and finally the iron-based magnetic grinding powderimitating a C60 surface structure is obtained. The method has the advantages of being high in control precision of surface cutting element arrays and strong in process stability and repeatability, and being capable of achieving high-efficiency processing performance and long life of the iron-based magnetic grinding powder.