6723 results about "High wear resistance" patented technology

A polycrystalline diamond abrasive element, particularly a cutting element, comprises a table of polycrystalline diamond bonded to a substrate, particularly a cemented carbide substrate, along a non-planar interface. The non-planar interface typically has a cruciform configuration. The polycrystalline diamond has a high wear-resistance, and has a region adjacent the working surface lean in catalysing material and a region rich in catalysing material. The region lean in catalysing material extends to a depth of 40 to 90 microns, which is much shallower than in the prior art. Notwithstanding the shallow region lean in catalysing material, the polycrystalline diamond cutters have a wear resistance, impact strength and cutter life comparable to that of prior art cutter, but requiring only 20% of the treatment times of the prior art cutters.

A composite powder for a deposition of a composite coating comprises a nonmetallic component and a metallic component, the metallic component having an amorphous structure or a nanocrystalline structure. The metallic component may include an amorphous metallic alloy. The metallic alloy may include constituents having the amorphous structure. The metallic component may include a combination of the metallic alloy existing in the amorphous state and constituents of the amorphous metallic alloy in the amorphous state. The composite metal-ceramic powders are used for depositing composite coatings on a selected surface. Disclosed are several methods and systems for producing such composite powders. Disclosed are also several methods and systems for depositing composite coatings. Advantageously, the deposited coatings exhibit high corrosion resistance, high wear resistance, and excellent structural properties.

The invention relates to a polymer wear-resistance coating material, which is a coating material consisting of a component A and a component B, wherein the component B is a solidifier, and the weight part of the component B is 2 to 10 percent of that of the component A; the component A consists of 40 to 80 weight parts of a main ingredient which is one or more mixed in random ratio of silicon carbide, fused zirconia alumina, fused sub-white corundum, fused brown aluminium oxide, fused white corundum and fused mullite, 1 to 5 weight parts of an auxiliary material which is one or more mixed in a random ratio of asbestos powder, glass-ceramic powder, titanium white, aluminium oxide powder and mica powder, 0.5 to 2 weight parts of reinforcing agent which is one ore more mixed in a random ratio of polypropylene fibers, glass fibers and carbon fibers, and 10 to 20 weight parts of a bonding agent which is polyurethane modified epoxy resin. The construction and use of the coating material are convenient and quick, the bonding strength of the coating material is high and the use cost of the coating material is low; and the coating material has high wear resistance, corrosion resistance and air corrosion resistance.

The invention discloses a sneaker sole material with high wear resistance and low hardness and a preparation method thereof, particularly a method for preparing a sneaker sole material which is suitable for middle and high-grade sneaker soles with higher requirements on wear resistance and comfort. The sneaker sole material comprises the following components: butadiene rubber (BR), natural rubber (NR), styrene butadiene rubber (SBR), softening oil, a reinforcing agent, an activating agent, a coupling agent, a vulcanizer, a vulcanization accelerator, a tackifier and an anti-aging agent. A series of sole material with high wear resistance (DIN abrasion is less than or equal to 40mm<3>, and the length of grinding marks is 3.0 to 4.0mm) and low hardness (ShoreA 60-66) is prepared by screening the proportion of rubber composition, the coupling agent, the accelerator, and the activating agent and reasonably controlling a process on the basis of the rubber, the softening oil and the reinforcing agent. The material has the advantages that: (1) the total weight of a sneaker sole is expected to be reduced, namely the thickness of a rubber outer sole of a sneaker can be reduced under the condition that the material has the wearing life which is the same as that of the conventional sneaker sole, so that the total weight of the sole is reduced; (2) the humidity and slip resistance is improved, namely the hardness of the sole is lower and the sole is easy to distort under the condition of stress, so that the contact area of the sole and the ground is increased, and the aim of improving the humidity and slip resistance of the sole is fulfilled; and (3) the comfort is improved.

The invention provides a high-elasticity sneaker air cushion sole and a production method thereof and researches a sneaker sole with high elasticity, high wear resistance and low hardness. The high-elasticity sneaker air cushion sole comprises a phylon (MD) midsole, an air cushion and a large sole which are sequentially and fixedly connected with one another from top to bottom, wherein an ethylene-vinyl acetate copolymer (EVA) cushion piece is assembled on a heel part of the air cushion; and the material formula of the MD midsole comprises the following components in parts by weight: 40-60 parts of EVA, 0-20 parts of ethylene propylene ternary gel, 0-30 parts of polyolefin elastomer (POE), 0-10 parts of talcum powder, 2.0-4.0 parts of a foaming agent, 0.6-1.0 part of a bridging agent, 1.0-2.0 part of a zinc oxide desulfurizing agent, 0.6-1.2 parts of stearic acid, 0.5-1.0 part of zinc stearate, 0.8-1.5 parts of a flow promotor and 0.3-0.8 part of a bridging addition agent.

A polycrystalline diamond compact for use in cutting operations with a renewable sharp cutting edge, high abrasion resistance and high impact strength. The polycrystalline diamond is a composite composed of a matrix of coarse diamond interspersed with large agglomerated particles of ultra fine diamond. The agglomerated particles produce sharp cutting edges that are protected from impact forces by the overall uniform matrix of coarse diamond crystals. The self-sharpening cutter is highly resistant to spalling and catastrophic fracture.

Cutting elements for earth-boring tools may generate a shear lip at a wear scar thereon during cutting. A diamond table may exhibit a relatively high wear resistance, and an edge of the diamond table may be chamfered, the combination of which may result in the formation of a shear lip. Cutting elements may comprise multi-layer diamond tables that result in the formation of a shear lip during cutting. Earth-boring tools include such cutting elements. Methods of forming cutting elements may include selectively designing and configuring the cutting elements to form a shear lip. Methods of cutting a formation using an earth-boring tool include cutting the formation with a cutting element on the tool, and generating a shear lip at a wear scar on the cutting element. The cutting element may be configured such that the shear lip comprises diamond material of the cutting element.

The invention discloses an ultraviolet (UV) curing paint and a preparation method and application thereof. The preparation method comprises the following steps: weighting modified SiO2 sol to place in a container, adding water-soluble UV-cured resin, solvent and additive in turn, stirring for 10min, then adding photoinitiator, and stirring for 5min to obtain the UV curing paint, wherein the contents of the water-soluble UV-cured resin, the solvent, the additive and the photoinitiator are 10-60%, 7-33%, 0.1% and 2% respectively. The UV curing paint prepared by the method of the invention has the advantages of inorganic materials such as high hardness, high wear resistance, scratch resistance and good thermal stability and also has the advantages of organic materials such as adhesivity and relative flexibility; and the UV curing paint is suitable to be used as the protective coatings on the surfaces of all kinds of optical plastic products such as polyester which contains polycarbonate, polymethylmethacrylate, polyethylene terephthalate (PET) and the like. By adopting the UV curing paint of the invention, the defects of the existing UV curing paint in the aspects of hardness, wear resistance, scratch resistance and light transmittance, can be overcomed to a certain extent.

The invention provides a spraying polyurea elastomer applied to a mine, a method for making the same and a construction method. The spraying polyurea elastomer can solve the problem of poor wearing resistance in the prior art. The invention comprises the following technical proposals that: the spraying polyurea elastomer applied to the mine comprises two compositions A and R, wherein, the composition A is a semi-prepolymer synthesized by 45 to 65 portions of polyisocyanate and 35 to 55 portions of polyether polyol; the composition R comprises 55 to 80 portions of amine terminated polyether, 15 to 33 portions of chain extender and 5 to 25 portions of antiwear filler; and the compositions A and R are matched for use according to an isocyanate index of between 0.9 and 1.2. The spraying polyurea elastomer has good physical performance, high wearing resistance, good oil resistance, hydrolization resistance, bacteria resistance and aging resistance and good construction performance and can be used in a vibration sieve equipment lining, a flotation equipment lining, etc. of the mine and other application places which have high requirement on wearing resistance.

The invention belongs to the field of material surface engineering and more particularly relates to a method for carrying out cladding on a high-hardness wear-resistant anti-corrosion nickel-based alloy material on a metal substrate E in a large area by applying a laser cladding technology, solving the problem of cracks generated in the laser cladding process of the high-hardness wear-resistant nickel-based alloy, in particular the cladding defects, such as cracks with the thickness of more than 1mm, pores and the like during large-area cladding. According to the invention, the high-hardness nickel-based alloy powder material is cladded on the surface of the metal substrate in the large area to form a high-hardness wear-resistant anti-corrosion nickel-based alloy coating by applying the laser cladding technology and adopting a scientific and reasonable process method. According to the method disclosed by the invention, stability and consistency of laser cladding are foundationally ensured, defects, such as cracks, pores, impurities can be prevented from generating, heat affected regions of the substrate are reduced, dilution rate is reduced, the high-wear-resistance anticorrosion nickel-based alloy coating with firm metallurgical bonding and fine and compact grains is obtained and has the hardness reaching 58-63HRC, and the service life of the processed workpiece can be prolonged by more than 1-2 times.

The present invention discloses compound high speed steel roll and its making process. The compound high speed steel roll consists of roll body and roll core compounded through central casting. The roll body is made of high speed steel comprising chemically C 1.8-2.8 (in wt%, same as below), Mo 4.0-8.0, V 3.0-7.0, Nb 1.5-4.0, Cr 6.0-12.0, RE 0.1-0.25, Ti 0.15-0.40, N 0.08-0.20, K 0.06-0.18, Si<2.0, Mn<2.0, S<0.05 and P<0.05, except Fe and inevitable impurity. The roll core is made of high strength nodular cast iron comprising chemically C 3.2-3.6 (in wt%, same as below), Si 1.8-2.4, Mn 0.4-0.8, Ni 0.3-1.2, Cr 0.3-0.8, Mo 0.2-0.5, Mg 0.03-0.08, RE 0.05-0.14, P<0.08 and S<0.03, except Fe and inevitable impurity. The compound high speed steel roll has high wear resistance, simple making process and high production efficiency.

The invention discloses a carbide-containing ausferrite spheroidal graphite cast iron grinding ball and a manufacturing method thereof, relating to a cast iron alloy containing spheroidal graphite. The grinding ball comprises the following chemical elements in percentage by mass: 3.3 to 3.7 percent of C, 2.4 to 3.3 percent of Si, 2.5 to 3.6 percent of Mn, 0.6 to 1.5 percent of Cr, less than 0.08 percent of P, less than 0.025 percent of S, 0.03 to 0.05 percent of Mg, 0.02 to 0.04 percent of Re and the balance of Fe. The preparation method of the grinding ball comprises the following steps of: (1) raw material preparation and smelting; (2) spheroidization and inoculation; and (3) isothermal quenching heat treatment. In the invention, a certain quantity of carbides and graphite balls are formed in a grinding ball casting-state structure by utilizing a sand lined metal casting technology; and an ausferrite base body with excellent comprehensive mechanical property is obtained by adopting an isothermal quenching technology; and as a certain quantity of carbides are distributed in the ausferrite base body, the carbide-containing ausferrite spheroidal graphite cast iron grinding ball has high wear resistance and toughness.

The invention discloses alloyed vermicular graphite cast iron produced by alloying the ordinary vermicular graphite cast iron. The cast iron comprises an alloy of two or more of elements such as Cu, Cr, Mo, Ni, Sn, Sb, B, Ti, Al, V and the like. The vermicular graphite cast iron comprises the following chemical ingredients in percentage by weight: 3.00-3.80 percent of C, 2.00-2.80 percent of Si, 0.45-0.95 percent of Mn, less than 0.06 percent of P, less than or equal to 0.02 percent of S, and 0.02-0.60 percent of alloy ingredient. The technical indexes of the vermicular graphite cast iron are that: VG is more than or equal to 80 percent, Rm is more than or equal to 380 MPa, hardness is between 180 HBW and 258 HBW, cast pearlite is more than or equal to 60 percent, and elongation rate is between 1 percent and 2 percent. The vermicular graphite cast iron has the advantages of high intensity, high heat conductivity, high wear resistance, high thermal fatigue resistance, small deformation, simple casting process and easiness in mechanical production. The service life of a produced brake drum for a high-speed and heavy-load automobile is remarkably prolonged, and safety is ensured.

A method of an in situ synthetic steel bond hard alloy casting composite hammerhead adopts a vacuum lost foam casting technology, wherein Ti powder, graphite powder, W powder and metal powder are mixed, and are added with an adhesion agent to produce a powder coating paste, the powder coating paste is filled in a reinforcement groove or a hole of a working part of an expanded poly styrol (EPS) foaming plastic modal of a hammerhead casting, during the pouring process, the high temperature of liquid steel is utilized to initiate the self propagating synthesis reaction, the reactions of Ti plus C->TiC and W plus C->WC are carried out, so the TiC and WC-based hard alloy phases are formed, the liquid steel is filled into the clearance of a hard phase, so an in situ synthetic titanium carbide and tungsten carbide steel bond hard alloy is obtained, and the hard alloy is embedded in the steel base body of the working part of the hammerhead. When the hammerhead which is produced through the method of the in situ synthetic steel bond hard alloy casting composite hammerhead is used, because the hard alloy and the casting are completely, metallurgically and firmly combined together, the hammerhead has high wear resistance and impact resistance during the use, has a simple technological process, low production cost, and is applicable to large-scale industrial production.

The present invention relates to conducting paint, and is especially one kind of TiB2 powder based conducting paint powder and its preparation process and application. The TiB2 powder based conducting paint powder consists of film forming material, coupling agent, diluent, assistants and curing agent; and conducting assistant consists of TiB2 powder as main component, carbon black, graphite, acetylene black and other conducting powder in certain proportion. It is prepared through adding the assistants into the film forming material and dispersing in a dispersing machine, adding coupling agent and conducting powder through stirring, adding mixed diluent through stirring to obtain paint product. The conducting paint coating is formed through brushing, spraying or dipping, and cured at room temperature or through heating. The present invention has the advantages of high conducting property, high hardness, high wear resistance, excellent protecting performance, etc.

The invention discloses water-soluble cutting oil applied to cutting work and guide rail lubrication. The water-soluble cutting oil comprises 40-60 parts by mass of mineral oil, 4-14 parts by weight of a pH adjusting agent, 5-15 parts by weight of an extreme-pressure lubricant, 15-30 parts by weight of an emulsifying agent, 0.1-3.5 parts by weight of a corrosion inhibitor, 0.1-2 parts by weight of a stabilizer, 0.01-0.2 part by weight of an antifoaming agent, 1-5 parts by weight of a sterilizing agent and 1-5 parts by weight of water. The water-soluble cutting coil applied to cutting work and guide rail lubrication according to the embodiment of the invention has high wear resistance and adhesion, and the extreme pressure performance of the cutting oil can meet the machining and guide rail working demands.

The invention discloses wear-resistant, antiknock and radiation-resistant concrete and a preparation method thereof. Each cubic meter of the concrete comprises 600-1600kg of cement, 400-1400kg of fine aggregate, 30-560kg of a high-strength admixture, 250-1800kg of functional aggregate, 3-500kg of high tensile strength fibers, 0.4-45kg of organic fibers, 0.6-43.2kg of a water reducer (based on solid content), 0.06-43kg of an antifoaming agent, 6-129kg of an expanding agent and 100-430kg of water. The wear-resistant, antiknock and radiation-resistant concrete has high wear resistance, instant high temperature explosion resistance, high knock resistance, high toughness and radiation resistance.