205results about How to "High wear resistance" patented technology

Prosthetic joints, components for prosthetic joints, superhard bearing and articulation surfaces, diamond bearing and articulation surfaces, substrate surface topographical features, materials for making joints, bearing and articulation surfaces, and methods for manufacturing and finishing the same, and related information are disclosed, including a prosthetic joint component having at least one sintered polycrystalline diamond compact articulation surface and substrate surface topographical features in said polycrystalline diamond compact.

The invention discloses a dual-curing coating. The coating contains ultraviolet curing resin monomers, a low polymer, a photo-initiator, polymer resins, an adjuvant and an organic solvent. In the invention, the dual-curing coating is prepared by synergistic copolymerization of an ultraviolet curing coating system and a solvent-based polymer system. The preparation method of the coating comprises the following steps: firstly thermocuring, and then processing information layers and photocuring at the same time; or firstly photocuring, then processing the information layers, and finally heating with an oven or infrared-heating for further cross-linking curing. Therefore, the dual-curing coating has better comprehensive performances such as fast curing speed, small film-coating cure shrinkage and high crosslinking density so as to achieve the characteristics of chemical corrosion resistance, strong wear resistance, strong high temperature resistance, excellent flexibitity, excellent adhesive force and the like; and the coating can be used for laser anti-counterfeit marks of plastics, cosmetic preparations, ceramic materials, glass, paper, leather, wooden products and metal products as well as production of pigment preparations and the like.

Prosthetic joints, components for prosthetic joints, superhard bearing and articulation surfaces, diamond bearing and articulation surfaces, substrate surface topographical features, materials for making joints, bearing and articulation surfaces, and methods for manufacturing and finishing the same, and related information are disclosed, including a prosthetic joint component having at least one sintered polycrystalline diamond compact articulation surface and substrate surface topographical features in said polycrystalline diamond compact.

A hot wire welding process. An induction coil is used to preheat the filler metal wire prior to its entering the welding puddle / arc region. An induction coil is placed in close proximity to the welding arc. The filler wire is guided and supported by a delivery guide so that the filler wire passes through the center of, and is insulated from, the induction coil. The induction coil induces a current flow in the filler wire. The current produces heat as a result of the electrical resistivity of the filler wire. The heat produced raises the temperature of the filler wire just before it is fed into the weld arc region, thus reducing the energy required from the welding arc to melt the filler metal wire into the weld puddle.

A valve train for an internal combustion engine is comprised of a lubricating oil, and a camshaft which is made of an iron-based material and comprises a cam lobe and a camshaft journal. The camshaft slidingly moves on a counterpart thereof through the lubricating oil. A hard carbon film is formed on at least one of a sliding portion of the camshaft and the counterpart made of an iron-based material. A hydrogen amount of the hard carbon film is 10 atomic percent or less.

The invention includes fabrics that have been dyed or finished with a dye that contains a conductive mixture of conductive organic materials, inorganic materials, metals, metal oxides, carbon and carbon nanotubes or combinations or mixtures thereof. The dye is used to finish a fabric such that it is conductive. These fabrics are useful in shielding law enforcement personnel from energy weapons discharge and in providing an electrostatic medium for personnel that work with static sensitive products. The fabrics, when appropriately grounded, dissipate the emitted charge and transmit it to ground. Additionally, the apparel has high wear resistance and is both thermally and electrically conductive yet is comfortable to wear.

Disclosed is an image forming apparatus for lowering friction coefficient and lowering surface energy of photoconductor surface in particular, which comprises an electrophotographic photoconductor, charging unit, light exposure unit, developing unit, transferring unit, and fixing unit, the electrophotographic photoconductor comprises a photosensitive layer on a conductive support and fluoropolymer fine particles at the outermost layer, a part of the fluoropolymer fine particles are exposed above the surface of the outermost layer in configurations of primary particles and secondary particles formed by flocculation of plural primary particles, and sum of area ratios of particles in the configurations of the primary particles and the secondary particles, each particles having an average diameter D of 0.15 μm≦D≦3.0 μm as respective projected figures of exposed portion above the surface of the outermost layer, is 10% to 60% based on the entire surface area of the outermost layer, and wherein the binder resin in the outermost layer comprises a polyalylate copolymer resin having a structural unit of alkylene-aryldicarboxylate.

The present invention provides a grease composition capable of effectively preventing a rolling surface of a bearing from having hydrogen brittleness-caused peeling, a grease-enclosed bearing in which the grease composition is enclosed, and a rotation-transmitting apparatus with a built-in one-way clutch in which the grease composition is enclosed at a sliding portion. The grease composition contains a base grease consisting of a base oil and a thickener; and an additive added to the base grease. The grease composition prevents a frictional wear surface of the sliding portion or a newly generated surface consisting of iron or the like exposed owing to wear from being peeled owing to hydrogen brittleness. The additive contains a bismuth-based additive or a magnesium-based additive. The bismuth-based additive consists of at least one of inorganic bismuth and organic bismuth not containing a sulfur component. The magnesium-based additive consists of at least one of inorganic magnesium and organic magnesium. The grease-enclosed bearing encloses the above-described grease composition.

A method of forming a high wear resistance coating on a substrate having a low coefficient of thermal expansion is described. The method may include providing the low CTE substrate, where a surface of the substrate includes a plurality of protrusions raised above the surface. A high wear resistance layer is formed on a top portion of protrusions, where the layer is not contiguous between adjacent protrusions on the substrate. Also, a wafer support component to support a wafer during, for example, a photolithography or inspection process. The wafer support component includes a substrate that has a material with a low coefficient of thermal expansion, where the substrate has a surface with a plurality of protrusions raised about the surface. A high wear resistance layer is formed on a top surface of each of the protrusions.

Boron nitride nanotubes (BNNTs), boron nitride nanoparticles (BNNPs), carbon nanotubes (CNTs), graphites, or combinations, are incorporated into matrices of polymer, ceramic or metals. Fibers, yarns, and woven or nonwoven mats of BNNTs are used as toughening layers in penetration resistant materials to maximize energy absorption and / or high hardness layers to rebound or deform penetrators. They can be also used as reinforcing inclusions combining with other polymer matrices to create composite layers like typical reinforcing fibers such as Kevlar®, Spectra®, ceramics and metals. Enhanced wear resistance and usage time are achieved by adding boron nitride nanomaterials, increasing hardness and toughness. Such materials can be used in high temperature environments since the oxidation temperature of BNNTs exceeds 800° C. in air. Boron nitride based composites are useful as strong structural materials for anti-micrometeorite layers for spacecraft and space suits, ultra strong tethers, protective gear, vehicles, helmets, shields and safety suits / helmets for industry.

The method provided by the invention comprises the following steps: a machine body, a walking part, a lifting part, a reciprocating pounding part and the like are arranged; a pounding guide element and the like are arranged on a pounding guide device; pounding heads are arranged at two ends of the pounding guide element, so that a power pounding element drives the pounding guide element; the reciprocating pounding part is arranged on the lifting part; the lifting part is arranged on the machine body; and the walking part drives the machine body to move ahead and retreats so as not to turn the machine body to excavate and drop materials forward and backward. Equipment provided by the invention comprises the machine body, the walking part, the lifting part, the reciprocating pounding part and the like; the reciprocating pounding part comprises the pounding guide device, the pounding driving device and the like; the pounding heads are both arranged at two ends of the pounding guide element; the pounding driving device comprises the power pounding element and the like; the power pounding element drives the pounding guide element to move in a reciprocating mode; the pounding guide element drives the pounding heads to pound; the reciprocating pounding part is arranged on the lifting part; the lifting part is arranged on the machine body; the walking part drives the machine body to move ahead and retreat so as not to turn the machine body to excavate and drop materials forward and backward.

The present invention has as its object to stably produce a high strength electrical steel sheet and a processed part of the same which is high in strength and has wear resistant and is superior in magnetic flux density and core loss without greatly changing the cold rollability and production processes from those of conventional electrical steel sheet and provides a high strength electrical steel sheet characterized by containing, by mass %, C: 0.06% or less, Si: 0.2 to 6.5%, Mn: 0.05 to 3.0%, P: 0.30% or less, S or Se: 0.040% or less, Al: 2.50% or less, Cu: 0.6 to 8.0%, N: 0.0400% or less, and a balance of Fe and unavoidable impurities and containing in the steel a metal phase composed of Cu of a size of 0.1 μm or less. The method of production of the same comprises holding in a temperature range of 300° C. to 720° C. for 5 seconds or more for heat treatment.

The present invention is directed to a rubber composition comprising a diene elastomer, a reinforcing white filler, and a (white filler / elastomer) coupling agent, which is bifunctional and which can be bonded to the elastomer by means of a function X. The coupling agent X function is an ester function of an unsaturated α-β acid bearing a carbonyl group on its γ position and having the general formula (X):where R, R1 and R2 may be the same or different, where R is a monovalent hydrocarbon radical, and where R1 and R2 may be a hydrogen atom or a monovalent hydrocarbon radical. The rubber composition of the present invention is useful for the manufacture of tires or semi-finished products for tires, such as tire treads.

The invention discloses a special tensile dragging control cable. An insulating wire core consists of a plurality of multi-stranded zinc-coated soft steel wires, a tin-coated oxygen-free copper wire and an insulating extruded layer; a plurality of insulating wire cores are stranded into a cable core; a filling layer which consists of hemp ropes is filled in a clearance of the cable core; the cable core is wound with a tear-resistant polypropylene belt in an overlapping mode and extruded with a tensile wear-resistant polyurethane elastic outer sheath; the outermost layer of the cable is a braided zinc-coated steel wire outer sheath layer; each insulating wire core consists of the plurality of multi-stranded zinc-coated soft steel wires which serve as reinforcing cores and the tin-coated oxygen-free copper wire which serves as a copper conductor; and the insulating extruded layer is made of ethylene-propylene-diene monomer compound rubber. The special tensile dragging control cable has the characteristics of high tensile strength, high flexibility, high tear resistance, oil resistance, aging resistance, external environment weather resistance and the like, has excellent functions ofhigh bending winding capacity, dragging resistance, environment friendliness and the like, and is applicable to equipment such as a winding drum, a port machine and an excavator; and the service lifeof the dragging cable is greatly prolonged.

This invention provides a system and method for attaching a trim cover to a flexible / resilient substrate, typically constructed from foam, which includes a plurality of clips that each has a base molded into the substrate. The bases each include a central “keyhole” slot that receives a corresponding key formed on a stem at a bottom of a clip projection. The clip projection defines a cavity for receiving a trim cover bead through a gap formed between a pair of legs that extend from the bottom. The stem has a length that is approximately the thickness of the slot. By passing the key through the slot and rotating the key to a locked position, the clip projection may be removably mounted to the substrate for repair or replacement as needed. The base may be constructed from a material that adheres effectively to the substrate, while the clip projection may be constructed from a material that exhibits high elasticity and wear-resistance. A cradle that includes a pair of upright posts that each confront a leg may be provided to progressively support the legs so as to prevent single point stresses from forming in the legs.

The invention discloses a low-cost denitration catalyst and a preparation process thereof. The catalyst comprises the following components: nanometer TiO2 powder, montmorillonite, ammonium metatungstate, ammonium metavanadate, chopped glass fiber, broad-leaf forest wood pulp fiber, carboxymethyl cellulose, polyoxyethylene and stearic acid. The preparation process of the low-cost denitration catalyst comprises the steps: dissolving the ammonium metavanadate by taking an aqueous solution of monoethanolamine as a solvent, dissolving the ammonium metatungstate into water under normal temperature, and continuously stirring the solution for 1h for later use; and sufficiently kneading the raw material of the catalyst to obtain a plastic pug, placing the plastic pug into a sealed plastic bag to store for a plurality of hours to age, forming the pug into a honeycomb-shaped catalyst blank, entering a dried honeycomb body into a mesh band type tunnel kiln for roasting, cutting a final roasted product according to the required length, assembling the product into a module box body, and externally packaging the product. The low-cost denitration catalyst is low in cost and capable of effectively improving the denitration performance, enhancing the mechanical strength of the product and improving the wear resistance.

The invention provides a color floor prepared by automatic leveling of color terrace coating mixed high-strength cement and a construction method of the color floor. The color floor is formed by mixing a component A with a component B, then paving the obtained mixture on the ground for automatically leveling, drying and polishing sequentially by using abrasive discs with different meshes until the ground is light, wherein the component A is color terrace coating which is formed by adding 20-75% of water-based emulsion, 1-10% of additives and10-30% of concentrated water-based color paste into 10-60% of water, and the component B consists of 10-45% of ordinary Portland cement, 10-45% of aluminate cement, 1-12% of semi-hydrated gypsum, 15-60% of quartz sand, 0.1-1% of a polycarboxylate water reducing agent, 0.1-1% of hydrogenated silicon oil, 0.1-3% of silica fume and 15-50% of fillers. The prepared color floor are fast in material setting and hardening, and is firm and wear-resistant; the floor is smooth and attractive and flat, natural and is soft and attractive in color, overload-resistant, highly pressure-resistant, and highly wear-resistant.

The invention relates to a coating comprising a number of layered structures, each such layered structure comprising—a first layer comprising a diamond like nanocomposite layer, said first layer comprising carbon, hydrogen, oxygen and silicon; a second layer comprising a diamond like carbon layer. The number of layered structure is higher than 4 and is preferably between 10 and 100. The invention further relates to a method to deposit such a coating.

A flat adhesive disk for grinding the workpiece made of high-speed steel is prepared from cubic boron nitride, dextrin powder, white corundum, wetting agent and ceramic adhesive through proportional mixing, shaping, drying, sintering, examining and trimming. Its advantages are high hardness, toughness, high-temp strength and antiwear performace and long service.

The invention relates to a chisel holder for a cutting machine, road milling machine, surface miner, or the like, having a chisel receptacle, which comprises an insertion opening, and having a chiselsupporting surface, wherein at least one wear protection element is arranged in an area associated with the chisel supporting surface. In order to bring about effective wear protection in such a chisel holder at low cost, it is provided that the at least one wear protection element is designed as a weld and is arranged at least in areas in at least one opening.

The invention discloses a preparation method for a composite crosslinked absorbent for waste water treatment, which comprises: firstly, preparing solution of biological macromolecular material; secondly, heating to dissolve polyvinyl alcohol (PVA), and uniformly mixing the solution of PVA, the solution of biological macromolecular material and mineral powder; thirdly, adding the mixed solution into solution of boric acid to perform immobilized crosslinking, and after crosslinking is finished, washing and drying an immobilized material to obtain the composite crosslinked adsorbent. The method has the advantages of simple and quick process, low cost, economy, applicability and the like. The crosslinked absorbent contains rich active groups and porous structures and has high stability, good absorbing effect and wide application range. The crosslinked absorbent can be widely used for treating waste water.

A rubber composition comprises as a rubber component (A) an aromatic vinyl compound-conjugated diene compound copolymer polymerized with a lithium-based polymerization initiator and having a polystyrene-conversion weight average molecular weight of 3.0×105-3.0×106 as measured by a gel permeation chromatography and (B) 10-200 parts by mass, based on 100 parts by mass of the copolymer (A), of a hydrogenated styrene-butadiene copolymer having a polystyrene-conversion weight average molecular weight of 5.0×103-2.0×105 as measured by a gel permeation chromatography and a bound styrene content of 10-70 mass % in which 25-50% of double bonds in butadiene portion is hydrogenated.

The invention discloses a cobalt-base Fischer-Tropsch synthesis catalyst and a preparation method and application thereof. The catalyst comprises a mesoporous carbon carrier and an active component cobalt, wherein the active component cobalt is confined in the mesoporous carbon carrier. The catalyst has specific surface area of 220-400 m<2> / g and particle diameter of 50-150 um. The preparation method employs phenolic resin solution as an organic precursor, and then a sol-gel method is employed to embed the active component Co into the mesoporous carbon carrier. The catalyst prepared by the invention before usage only requires introduction of inert gas into at a certain temperature without hydrogen reduction, so as to obtain the catalyst containing cobalt. The catalyst of the invention has the advantages of high reduction degree, high dispersity, good stability, uniform size of active component, controllable carrier aperture and high selectivity on diesel, and can meet the requirements of a slurry bed reactor on the wear resistance of the catalyst.

The invention relates to a nanometer coating used for preventing icing of a high tension transmission line and application thereof. The nanometer coating is prepared through the following steps: weighing, by weight, 10 to 15% of a high-molecular resin, 20 to 25% of titanium dioxide, 30 to 35% of silica, 3 to 5% of diamond-like carbon and 19 to 32% of a solvent; then compounding and uniformly mixing the high-molecular resin, titanium dioxide, silica and diamond-like carbon and carrying out grinding to obtain a particle with a particle size of 1 to 100 nm; and finally, adding the raw materials uniformly mixed and ground into the solvent and carrying out full stirring so as to obtain the nanometer coating used for preventing icing of the high tension transmission line. The coating provided by the invention allows the high tension transmission line to have the advantages of fouling resistance, icing resistance, high wear resistance and the like, provides a long-acting, high-efficiency, convenient, economic and feasible approach for active resistance to ice and snow disasters, realizes delaying and prevention of icing of super-cooled droplets on the high tension transmission line and enables no icing or little icing to be generated on the high tension transmission line in snowy weather.

A surface-covered CBN sintered body tool includes a base material formed with a cubic boron nitride (CBN) sintered body and a surface covering film covering a surface of the base material, and has a nega-land exposing the CBN sintered body in at least a portion thereof and a flank having the surface covering film formed thereon. With this, the surface-covered CBN sintered body tool having high defect resistance and wear resistance can be provided. The surface covering film preferably includes a nitride or a carbonitride of a compound including at least one element selected from the group consisting of Ti, Cr, Zr, and V and at least one element selected from the group consisting of Al, Si and B, or a nitride or a carbonitride of Ti.

The invention provides a micro-spherical SiO2-Al2O3 based noble metal catalyst and a preparation method thereof. The preparation method comprises the following steps: dispersing silica sol into a silica sol system, so that silica sol is mixed with alumina sol and a coagulant to form formed sol, forming the sol by virtue of an atomizing dispersion-oil column formation method, and carrying out aging, washing, drying and roasting to obtain micro-spherical SiO2-Al2O3; and loading noble metal active components with the micro-spherical SiO2-Al2O3 as a carrier, obtain the micro-spherical SiO2-Al2O3 based noble metal catalyst. The catalyst has the characteristics that the specific surface area and the pore volume are large, the dispersity of active components is high, the abrasion index is relatively low, and the wear resistance is high. The catalyst is mainly applied to a hydrogenation process of preparing hydrogen peroxide by using a fluidized bed anthraquinone method and has relatively high catalytic activity, selectivity and stability. The catalyst can be also applied to reaction processes such as hydrorefining, selective hydrogenation and selective oxidation in petrochemical engineering and fine chemical engineering production.

The invention discloses a high-length-to-diameter-ratio solid-walled hollow gold / gold-silver nanotube and a controllable synthesis manufacturing method of the nanotube. According to the method, a high-length-to-diameter-ratio silver nanowire serves as a template; as Au (I) salt is adopted as a gold source in an optimized mode for replacement reaction, the adjustability of the replacement reaction rate and the precise controllability of experiments can be improved; in this way, the wall thickness of the nanotube and the flatness of the surface of the nanotube can be controlled more accurately, and the situation that a porous wall and a uneven surface are produced, or the nanotube collapses or fractures is avoided. The high-length-to-diameter-ratio solid-walled hollow gold / gold-silver nanotube has better conductivity, oxidation resistance, strength, bending resistance, light transmittance and abrasion resistance.

A carrier develops latent electrostatic images in corporation with a toner and one particle of the carrier includes a magnetic particle, and a coating layer covering the magnetic particle. The coating layer includes a crosslinked condensation product of a composition containing (i) an N-alkoxyalkylated polyamide and (ii) at least one resin that is reactive with the alkoxyalkylated polyamide and includes a silicone having a silanol group and / or a hydrolyzable group.

The invention discloses a high-wear-resistant wood-plastic composite floor and a preparation method thereof. The high-wear-resistant wood-plastic composite floor sequentially comprises a wear-resistant layer, a solid wood face and a wood-plastic composite base material, wherein the wear-resistant layer is wear-resistant aluminium oxide paper. The high-wear-resistant wood-plastic composite floor disclosed by the invention has the characteristics of high wear resistance, environmental protection, economization, uneasy deformation, insect prevention and moth proofing and the like.