104 results about "Wear resistance" patented technology

Provided is a shaped article for clean rooms comprising a resin composition prepared by melt-kneading 100 parts by weight of a cyclic olefin polymer (A) having a glass transition temperature of from 60 to 200° C., from 1 to 150 parts by weight of a flexible copolymer (B) prepared by polymerizing at least two monomers selected from a group consisting of olefins, dienes and aromatic vinyl-hydrocarbons, and having a glass transition temperature of 0° C. or lower, from 0.001 to 1 part by weight of a radical initiator (C), and from 0 to 1 part by weight of a polyfunctional compound (D) having at least two radical-polymerizable functional groups in the molecule. The shaped article for clean rooms has good chemical resistance, heat resistance and dimensional accuracy, it is inhibited from releasing a volatile component around it, and it has good abrasion resistance and is inhibited from producing particles.

The invention provides an aluminum and aluminum alloy matrix aluminum nitride reinforced gradient composite surface layer. In the surface layer, aluminum and an aluminum alloy matrix are melted by nitrogen arc with a simple process to ensure that Al and N elements in a melting bath to perform nitridation reaction, namely Al reacts with N to generate AlN, so as to obtain the 'AlN reinforced gradient composite surface layer'. Compared with a thin surface nitridated (AlN) layer prepared by reactive sputtering, chemical vapor deposition, ion injection, plasma nitridation and other methods, the surface layer has large thickness (0.13-0.3mm), has the microstructural characteristic of surface gradient composites, and has remarkably improved microhardness and abrasion resistance compared with the aluminum and the aluminum alloy matrix.

A textile sling (10) of the present invention includes a fabric webbing body (1) and reinforced side or sides (2) engaged with the webbing body. The reinforced side or sides are woven to selvedges of the own webbing body from anti abrasion yarns, thus a high protection is obtained to the selvedges of the sling from wearing down. On a surface and around yarns of the sling forms an antiabrasive layer (3) made from polyurethane dispersion with a catalyst solution of modified aliphatic polyisocyanate. A method of manufacturing the textile sling is also disclosed. The final sling product presents greater cut and abrasion resistance.

The invention discloses an anti-corrosion and wear-resisting coating for a throwing disc of a pneumatic type feeder. The anti-corrosion and wear-resisting coating is prepared from a POSS (polyhedral oligomeric silsesquioxane) coated multiwalled carbon nanotube, bisphenol A epoxy resin, phenolic resin, wear-resisting filler, a self-lubricating material, an antifoaming agent, a leveling agent, a curing agent and a solvent. According to a preparation method of the anti-corrosion and wear-resisting coating, POSS and a multiwalled carbon nanotube are used for preparing the POSS coated multiwalled carbon nanotube firstly, then the POSS coated multiwalled carbon nanotube are mixed with the bisphenol A epoxy resin, the phenolic resin, the wear-resisting filler, the self-lubricating material, the antifoaming agent, the leveling agent and the solvent in proportion, coating slurry is prepared, the coating slurry is mixed with the curing agent and cured at the room temperature for film forming during construction, and the anti-corrosion and wear-resisting coating is obtained. The preparation process of the coating is simple to operate, and the prepared coating has excellent corrosion resistance, wear resistance, self-lubrication and water lubrication and is an ideal anti-corrosion and wear-resisting material for the throwing disc of the pneumatic type feeder, an oil conveying pipe and the like under severe working conditions.

The invention relates to the field of organic high-molecular compounds. In order to solve the problem of deficiency in long residual action and environment friendliness in the existing oil-based fluorine-containing low-surface-energy anti-doodling paint, the invention provides a water-based anti-doodling paint and a preparation method thereof. The preparation method comprises the following steps: adding a pigment, a filler and a dispersing agent into a toning cylinder, mixing, adding into a grinder, and grinding until the fineness is less than 20 mu m to obtain a color paste; and adding deionized water, the color paste, a fluorine-silicon-modified polyurethane core-shell emulsion, a preservative and a mildew preventive into a dispersion cylinder, mixing, sequentially adding a film forming assistant, a defoaming agent a thickener, mixing, and discharging to obtain the water-based anti-doodling paint. The film formed by the paint has the characteristics of excellent weather resistance, excellent ultraviolet resistance, excellent wear resistance, low surface energy, excellent pollution resistance, excellent doodling resistance, low VOC (volatile organic compound) emission, environment friendliness and no toxicity.

The invention discloses a wear-resistant heavy oil catalytic cracking catalyst capable of reducing sulfur content of gasoline. Based on the total mass of the catalyst, the wear-resistant heavy oil catalytic cracking catalyst comprises not less than 15 mass percent of mullite, 0.05-20 mass percent of vanadium in terms of vanadium element and 15-50 mass percent of Y-type molecular sieve. The wear-resistant heavy oil catalytic cracking catalyst is prepared by taking mullite microspheres, which are synthesized at low temperature by taking a large amount of vanadium-containing compound as a phase change auxiliary agent, as a raw material, performing in-situ crystallization on the microspheres to synthesize a NaY molecular sieve, modifying and exchanging. The wear-resistant heavy oil catalytic cracking catalyst has rich middle pores and macropores, is strong in wear resistance, can reduce the sulfur content of the gasoline in a catalytic cracking process and has an excellent heavy oil cracking function.

The invention discloses a method for manufacturing a three-dimensional craft picture. The method comprises the following steps: selecting an applicable basis material and a picture to be manufactured; manufacturing a three-dimensional effect layer on the basis material; performing spray-painting and coloring processing according to the picture to be manufactured to form a spray-painting layer, wherein oil-based printing ink is adopted in the spray-painting and coloring process. According to the method, a spray-painting layer is positioned at the outermost layer of the three-dimensional craft picture, so that a picture effect displayed by the three-dimensional craft picture is more three-dimensional and lifelike; meanwhile, the three-dimensional craft picture has better water proofness, sun proofness, color retention and wearing resistance, and is convenient to be conserved for long time, and applicable to industrial mass production.

The invention discloses a method for making a coated filter cloth through a wet process. A technical scheme adopted in the invention is characterized in that the method comprises the following steps: calendering the coated surface of a filter cloth, coating or dip-coating the calendered surface of the filter cloth with a coating agent of an organic polymer material having the advantages of high porosity, smooth surface, good elasticity and good wear resistance through a coating or dipping device, immersing the coating agent coated filter cloth in a coagulation bath, controlling and adjusting the temperature of the coagulation bath and the detention time in order to realize required porosity and film layer thickness, washing with water, and drying. The obtained coated filter cloth changes deep filtration to surface layer filtration, so a filtered material does not aggregate in the apertures between yarns of the filter cloth, the obstruction of the filtered material in the apertures of the filter cloth is avoided, the possibility of the obstruction of the filter cloth by the filtered material is greatly reduced, the filtering efficiency is improved, the energy consumption of a filtering system is reduced, the filter cloth obstruction is reduced, the service life of the filter cloth is prolonged, and the production cost is reduced.

The invention discloses an alloy gray cast iron material for an automobile brake disc, the automobile brake disc and a preparation method thereof. The alloy gray cast iron material comprises, by mass, 3.5%-3.6% of C, 0.5%-0.6% of Mn, 0.25%-0.35% of Cr, 0.6%-0.8% of Cu, 0.4%-0.5% of Nb, 1.8%-2.0% of Si, less than or equal to 2% of P, less than or equal to 0.12% of S and the balance iron. According to the alloy gray cast iron material for the automobile brake disc, the automobile brake disc and the preparation method thereof, a graphite morphology of a high-carbon equivalent brake disc can be improved by adding the alloy element, and the graphite morphology can be refined, so that the brake disc has good comprehensive performances such as heat conductivity, wear resistance and the like, and therefore the high-standard brake disc meets the requirement of a high-performance automobile, and the problem that an existing automobile brake disc cannot meet the requirement of a high-performance automobile is solved.

The invention relates to a high-hardness matte ceramic antifouling agent. The high-hardness matte ceramic antifouling agent is prepared via modification grafting with active MQ silicone resin on the surfaces of nanometer silicon dioxide particles. According to the high-hardness matte ceramic antifouling agent, inorganic siloxane in MQ silicone resin and nanometer silicon dioxide are taken as hard chain segments, porefilling effect, wear resistance, and skid resistance on the surface of ceramic are achieved, and in addition nanometer silicon dioxide possesses hydrophobic antifouling antibacterial effect; one the other hand, a cross-linked net-structured film composed of MQ silicone resin and methyl hydrogen silicone fluid is taken as a soft chain segment, and in polishing process, a polishing wheel is isolated from tile surface to avoid direct elastic contact, so that tile glossiness is not improved, and problems of conventional matte antifouling agents that wear resistance and antifouling properties are poor are solved.

Negative-working imageable elements are prepared with radiation-sensitive imageable layers that contain surface-modified silica particles such as fumed silica particles and sol-gel silica particles, that are present in an amount of from about 1 to about 40 weight %, have an average particle size of from about 1 to about 500 nm, have surface hydroxy groups, and have a carbon content of from about 0.5 to about 15 weight % that is derived from surface hydrophobic groups having 1 to 30 carbon atoms. The presence of the surface-modified silica particles provides improved abrasion resistance, reduced tackiness, and various other desired properties.

The invention discloses an ore feeding hopper device which is low in cost, easy to clean and capable of achieving continuous and stable discharging. The ore feeding hopper device comprises a hopper body, wherein the lower end of the hopper body is provided with a discharging port. The ore feeding hopper device further comprises at least two barrier plate layers and at least one stripping device, wherein the barrier plate layers are arranged along the inner circumference of the hopper body by one circle and sequentially arranged in the hopper body from bottom to top in a spaced mode, and the included angle a between the upper surface of each barrier plate layer and the vertical upward direction is smaller than or equal to 90 degrees; the stripping device is installed on the outer wall of the hopper body and can vibrate and/or rap the hopper body so as to enable ore to fall off. The barrier plate layers indirectly improve abrasion resistance of the hopper device, cost is lower, and the hopper device is good in abrasion resistance, easier to manufacture and suitable for application and popularization. The stripping device can guarantee continuity and stability of discharging and meanwhile facilitates cleaning and maintaining of the interior of the hopper device.

The invention discloses a rubber tube and a preparation method thereof, belonging to the technical field of paints. The rubber tube is prepared from the following raw materials in parts by weight: 60-70 parts of epichlorohydrin rubber, 15-20 parts of fast-extruding carbon black, 1-2 parts of 2,2,4-trimethyl-1,2-dihydroquinoline polymer, 2-4 parts of N,N'-diphenyl-p-phenylenediamine, 3-5 parts of titanium white, 5-8 parts of antimony trioxide, 4-5 parts of decabromodiphenylethane, 5-10 parts of calcium hydroxide, 0.5-1 part of stearic acid, 8-12 parts of talcum powder, 8-12 parts of silicon dioxide and 1-5 parts of magnesium oxide. Compared with the rubber tube in the prior art, the rubber tube disclosed in the invention has the advantages of favorable high temperature resistance, favorable low temperature resistance, favorable wear resistance, favorable aging resistance and the like, and is environment-friendly.

The invention discloses anti-corrosion and anti-wear high manganese steel and a preparation method thereof. The high manganese steel consists of the following components in percentage by weight: 1.0-1.2% of carbon, 14-15% of manganese, 0.48-0.6% of silicon, 10.5-12.5% of chromium, 0.5-0.6% of molybdenum, 0.3-0.5% of nickel, 0.1-0.3% of aluminum, 0.08-0.12% of copper, 0.01-0.02% of nitrogen, 0.01-0.03% of rare earth element, less than or equal to 0.03% of phosphorus, less than or equal to 0.03% of sulfur and the balance of iron. The preparation method comprises: (1) smelting: adding alloy and metal raw materials including technically pure iron, nitrided ferrovanadium, ferromanganese, technically pure aluminum and the like into an electric furnace, heating to melt all the alloy and metal raw materials, maintaining for 30 minutes at the temperature of 1,730-1,750DEG C, and discharging at the temperature of 1,460-1,500 DEG C; (2) casting; (3) heat treatment after casting; and (4) product acceptance. The anti-corrosion and anti-wear high manganese steel has the advantages of good anti-corrosion property, good anti-wear property, good impact toughness, long service life and short production period.

The invention discloses a wear-resistant non-toxic modified plastic production method. The method comprises S1, preparation: weighing 40 to 45 parts of polypropylene, 30 to 35 parts of polyvinyl chloride, 25 to 30 parts of glass fibers, 15 to 20 parts of carbon fibers, 1 to 1.5 parts of a coupling agent, 10 to 15 parts of Teflon, 0.5 to 1 part of a lubricant and 5 to 7 parts of low density polyethylene, S2, blending: adding the weighed materials into a mixer and carrying out full mixing and grinding, S3, extrusion: putting the fully mixed materials into a twin-screw extruder and carrying out extrusion, S4, cooling: putting the molded plastic into a cooling room and carrying out cooling, S5, dry air drying: carrying out dry air drying and cooling on the product obtained by the step S4 through a dry air machine, S6, grain-sized dicing: putting the product obtained by the step S5 into a pelletizer and carrying out grain-sized dicing, and S7, vulcanization: carrying out vulcanization on the particles in a press vulcanizer. Through filling modification of polypropylene and polyvinyl chloride, the wear resistance of the modified plastic is greatly improved, good thermal performances areobtained, environmental friendliness is obtained and toxicity is avoided.

The invention discloses a flame-retardant and wear-resisting rubber material for a borehole cable sheath and a preparation method of the flame-retardant and wear-resisting rubber material. The flame-retardant and wear-resisting rubber material is prepared from nitrile rubber, natural rubber, triethyl citrate, benzoxazine resin, magnesium dimethacrylate, acetyl benzoyl peroxide, ethanol [2-[2-(2-methoxyethoxy)ethoxy]ethyl], triester with boric acid, gamma-aminopropyltriethoxysilane, polychlorinated terphenyl, dimethyldiethoxysilane, tricresyl phosphate, magnesium hydroxide, white jade powder, microcrystalline wax, hydrogenated rosin resin and the like. By matching the nitrile rubber with the natural rubber for use, the flame-retardant and wear-resisting rubber material has the advantages of good mechanical property and processing property, good oil resistance, wear resistance and chemical corrosion resistance, as well as heat resistance and low temperature resistance; by matching the tricresyl phosphate, the polychlorinated terphenyl and the magnesium hydroxide with sodium aluminum carbonate hydroxide for use, the fire-retardant property is enhanced; by adding the white jade powder, nano- tungsten boride and other fillers, high temperature resistance, wear resistance and other physical properties of the material are enhanced.