60 results about "Wear resistant" patented technology

The tool mount has a body (12) with means for housing a tool with grooves, whereby the body (12) is equipped with a damping mechanism (14, 16, 18, 20) with which the tool can be clamped in position in the body (12), and an operating element (24) for unclamping the tool is provided.

A wear-resistant tool mount requiring low production expenses has a housing sleeve (34) for the tool. The housing sleeve is inserted in the body (12) and is made of a harder material than the body (12).

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 drill bit of a hollow drill. The drill bit comprises a drill handle and a barrel, and is characterized in that the top end of the barrel is provided with a wear-resistant layer; a plurality of cutting teeth are uniformly distributed on the wear-resistant layer; the wear-resistant layer is formed by overlaying a JY49-1 material at one time; the cutting teeth are directly welded on the wear-resistant layer. The drill bit has the advantages of corrosion resistance, easiness in cleaning, firmness, prevention of deformation and durability.

The invention relates to a compound electrode. The compound electrode comprises a first part comprising conductive metal and a second part comprising tungsten alloy; the second part and the first part are jointed along the length direction of the compound electrode; the second part comprises a machining tail end which is away from the first part and is used for machining a workpiece. The invention also relates to a machining device comprising the compound electrode and a machining method using the compound electrode. The compound electrode is wear-resistant.

The invention discloses a boron-bearing chromium molybdenum nickel wear-resistant alloy comprising the following chemical components: 0.30-0.50% of C, 0.8-2.6% of B, 0.5-1.8% of Mn, 0.4-1.0% of Si, 4.0-6.0% of Cr, 2.0-4.5% of Mo, 0.8-2.0% of Ni, 3.5-5.5% of V, 0.02-0.04% of Ce, 0.02-0.04% of La, 0.10-0.20% of Mg, 0.01-0.03% of Ca, 0.05-0.10% of Ba, 0.040 or less of S, 0.040 or less of P, and balance of Fe and unavoidable impurities; the preparation steps include melting and heat treatment; the present invention aims to provide the boron-bearing chromium molybdenum nickel wear-resistant alloy which is safer, more wear resistant, and better in toughness, and also aims to provide a preparation method which is simple and easy to operate, simple in technological process and low in cost for preparation of the boron-bearing chromium molybdenum nickel wear-resistant alloy.

The invention discloses a high-molecular self-lubricating material and a preparation method of the high-molecular self-lubricating material. The high-molecular self-lubricating material is prepared from the following ingredients in parts by weight: 100 parts of polybutylene terephthalate resin, 5 to 30 parts of aramid fiber, 3 to 20 parts of wear-resistant agents, 5 to 12 parts of toughening agents, 0.1 to 2.0 parts of antioxidants and 0.1 to 2.0 parts of stabilizing agents. The high-molecular self-lubricating material has the advantages that the mechanical property is excellent; the wear-resistant performance is excellent; the dimension stability is high. The invention also discloses a plate spring flanged bushing, which is made of the high-molecular self-lubricating material through injection molding. The plate spring flanged bushing has the advantages that the structure is simple; the weight is light; the maintenance is avoided; the abrasion resistance is realized.

The invention relates to a rubber composition used for treads of middle-large-size automobile tires. According to the material formula, the rubber composition contains the following components in parts by weight: matrix rubber including 65-75 parts of styrene-butadiene rubber and 25-35 parts of natural rubber; functional filler including 30-60 parts of modified fumed silica and 30-60 parts of carbon black; tackifying resin including 10-20 parts of specific boron hybridized methyl vinyl MQ silicon resin and 5-10 parts of synthesized terpene resin; 5-10 parts of a vulcanizing agent and 2-5 partsof a vulcanization accelerator. After being cured, the composition disclosed by the invention has high elasticity, self flame retardance, good wear resistant property and excellent ground gripping property and ground gripping durability, and has wide application prospect in the field of middle-large-size automobile tires.

The invention discloses a graphene modified self-lubricating wear-resistant coating. Mixed powder adopted comprises, by mass, 99.4-99.9% of WC-Co and 0.1-0.6% of graphene, after the powder making process of wet ball grinding on the mixed powder is completed, the powder is evenly scattered through ultrasonic treatment, drying is carried out, spraying powder with the grain size being 18-58 [mu]m is obtained through screening, and the graphene modified WC-Co self-lubricating wear-resistant coating is prepared by the adoption of an explosive spraying technology. The graphene modified WC-Co coating has the beneficial effects that the friction coefficient of the coating is decreased on the basis that the original high bonding strength and hardness of the WC-Co coating can be ensured, the abrasion loss is also reduced to a certain extent, the service life of parts can be prolonged, and the graphene modified self-lubricating wear-resistant coating is an excellent self-lubricating wear-resistant composite coating.

A downhole tool includes a circumferential band having a plurality of axially adjacent weld beads forming a wear resistant surface along a particular axial length of the tool and at least one circumferential multi-layer coating applied axially adjacent the band on either end. The multi-layer coating includes a first layer, exhibiting a first color, applied directly onto the tool surface, and a second wear-resistant layer, exhibiting a second color different from the first color, applied directly onto the first layer. The second layer wears or is removed by a certain amount, such that the first color of the first layer is revealed to indicate the extent of wear and/or that the tool should be removed from service and refurbished by applying a new wear-resistant coating.

A wear-resistant non-metal composite board comprises a substrate and a wear-resistant fabric layer arranged on the substrate, wherein the substrate is prepared from short glass fiber and epoxy resin;the wear-resistant fabric layer comprises a fabric surface layer and a fabric bottom layer; the fabric bottom layer is connected with the fabric surface layer and the substrate; the fabric surface layer is woven from polytetrafluoroethylene filaments and one or more of aramid filaments, polyester filaments, polyphenylene sulfide filaments, polyetheretherketone filaments and cotton fiber filaments;the fabric bottom layer is woven from one or more of the aramid filaments, the polyester filaments, the polyphenylene sulfide filaments, the polyetheretherketone filaments and the cotton fiber filaments; silk thread gaps of the fabric surface layer and the fabric bottom layer are filled with wear-resistant resin. Therefore, the wear-resistant non-metal composite board has the advantages of wear resistance, no need of oil supply, a long service life, low cost and the like and can be used for replacing metal sliding plates needing oil supply and engineering plastic sliding plates with relatively low carrying capacity. The invention further provides a production method of the wear-resistant non-metal composite board.

The invention relates to the modification of cast stone. The cast stone is modified and prepared into a wear-resistant composite microcrystalline sheet material by the addition of some raw materials. The wear-resistant composite microcrystalline sheet material is concretely prepared by the following steps of: uniformly mixing natural basalt, quartz sand, feldspar, changbaiite, boron nitride and molybdenum disulfide according to a certain weight ratio, heating the mixture into a crystallization tank furnace for crystallization, fully melting, followed by water quenching to prepare crystallized pellet diet; placing the pellet diet into a thermal furnace for heating, softening, melting, laying flat to obtain a smooth and flattening sheet material, preparing into a polycrystalline sintered body with a hard microscopic structure, cooling by annealing, grinding, polishing, and cutting into the required specification. The invention relates to a high-strength, high wear-resistant and corrosion-resistant protective material. Due to the adoption of natural inorganic materials, the novel green environmental-protection wear-resistant composite microcrystalline sheet material, which is prepared by two-time high-temperature sintering, is characterized in that its wear resistance can be more than ten times than that of common carbon steel, the microcrystalline sheet material has strong wear-resistant performance; and its use cost is low.

The invention discloses a high temperature furnace material chute device between a pre-reducing furnace and a final reducing furnace. The chute device comprises a material guiding pipeline, wherein the material guiding pipeline is composed of a section of straight pipeline, a section of inclined pipeline and a section of material guiding stub pipe, the lower end of the straight pipeline is communicated with the inclined pipeline, the connector at the lower part of inclined pipeline is communicated with the material guiding stub pipe, a layer of ceramic castable, which is high temperature resistant and wear resistant, is compounded on the inner wall of the material guiding pipeline, and a furnace material damping device is arranged on the cross part of the straight pipeline and the inclined pipeline. The chute device can solve the problems that the inner lining is not wear resistant, the chute device is easy to be deformed and the inspection and the maintenance are inconvenient.

High-strength wear-resistant environmental-friendly plastic and a preparing method thereof are disclosed. The plastic comprises following raw materials by weight: PAA copolymer, polylactic acid (PLA), ethylene-vinyl acetate copolymer (EVA), plant powder, graphite fiber, a silane coupling agent KH550, ABS-grafted maleic anhydride, styrene-butadiene thermoplastic elastomer (SBS), methyl methacrylate-butadiene-styrene copolymer (MBS), hydrogenated styrene-butadiene-styrene block copolymer (SEBS), dipentaerythritol ester PCB, octyl esters of epoxidized soybean oil, tributyl citrate, glyceryl monostearate, kaolin, coal ash, silk white powder, white carbon black and an antioxidant SP. The PAA copolymer is prepared by reacting 6-aminocaproic acid and gamma-aminobutyric acid in a mole ratio of 5-10:0.5-4. The plastic is excellent in wear resistance and strength, and can be fully degraded into water and carbon dioxide under actions of light/bacteria so as to avoid environment pollution.

The invention relates to a blast furnace charge-flow adjusting valve device suitable for high-temperature furnace charge. The blast furnace charge-flow adjusting valve device suitable for the high-temperature furnace charge mainly comprises a valve body, an inner valve plate, an outer valve plate, an inner shell, a wear resistant liner, transmission shafts and an oil cylinder drive device, wherein the inner valve plate and the outer valve plate are arranged inside the valve body. A driving device is arranged on one side of the external of the valve body, a driving device is arranged on the other side of the external of the valve body, each driving device is connected with one transmission shaft independently, and the two transmission shafts oppositely and respectively stretch into the valve body in a straight line. The outer valve plate and the inner valve plate are sequentially connected to each transmission shaft from the end to the inside, the left end of the outer valve plate is connected with the inner side end of the left side transmission shaft through splines, the right end of the outer valve plate is supported on the inner side end of the right side transmission shaft, the left end of the inner valve plate is supported on the inner side end of the left side transmission shaft, and the right end of the inner valve plate is connected with the inner side end of the right side transmission shaft through splines. The blast furnace charge-flow adjusting valve device suitable for the high-temperature furnace charge is small in size, firm in structure and convenient to mount and arrange, can be conveniently used to accurately adjust the furnace charge, and can be simultaneously suitable for blast furnaces with parallel hoppers and blast furnaces with hoppers connected in series. By means of the blast furnace charge-flow adjusting valve device suitable for the high-temperature furnace charge, the high-temperature protection problem of sealing components in a high temperature environment can be effectively solved, and the occurrence rate of operational failure can be effectively lowered.

The invention relates to a heat processing technology method of an austenitic ductile iron wear-resistant casting. The austenitic ductile iron wear-resistant casting is subjected to quenching processing, and the quenching processing comprises the following steps: the casting which is subjected to machining is heated to 850 DEG C-920 DEG C inside a bogie-hearth resistance furnace; thermal insulation is carried out for 1-1.5 hours; the casting is rapidly quenched into a water-soluble quenching liquid of which the temperature is 40-60 DEG C for 2-3 minutes; after quenching, the surface temperature of the austenitic ductile iron wear-resistant casting is controlled between 200 DEG C and 260 DEG C; the casting is taken out and is immediately sent into a tempering furnace for isothermal tempering processing to obtain the austenitic ductile iron wear-resistant casting, wherein the isothermal tempering temperature is controlled between 240 DEG C and 300 DEG C, and the isothermal tempering time is 2-3 hours. According to the heat processing technology method of the austenitic ductile iron wear-resistant casting, the cooling speed is high at a high-temperature phase over 400 DEG C; the cooling speed is low at a low-temperature phase below 400 DEG C; the performance of the wear-resistant casting is improved; the production cost is reduced; and the pollution to an atmospheric environment is avoided.

The invention discloses a high-performance wood-plastic composite packaging box, which comprises a rectangular box cover and a rectangular box body made of high-performance wood-plastic composite packaging boards; a wear-resistant layer from the outside to the inside of the high-performance wood-plastic composite packaging boards , wood-plastic layer, the wear-resistant layer is an ultra-thin film made of one or more materials from transparent PVC, ASA, PE, PET and PMMA, and the wood-plastic layer is a shock-absorbing and sound-absorbing layer; The upper end of the box body; the box cover is bent sideways and downwards to form a skirt; the inner wall of the skirt of the box cover is provided with a protrusion Ⅰ surrounding the box body; The protrusion I is fastened under the protrusion II on the outer wall of the box, so that the box cover and the box body are tightly combined in the upper and lower directions; the further improvement is: the middle part of the box cover is concave to form a groove; there are several reinforcing ribs in the groove of the box cover plate; the stiffener plate in the groove of the cover intersects vertically. The invention has the advantages of wear resistance, long service life and good shock absorption and noise reduction effect.

The invention relates to a heat-resistant and wear-resistant natural rubber composite material and a preparation method thereof, belongs to the technical field of composite materials, and aims to solve the technical problem of poor wear resistance of natural rubber in the prior art and further improve the heat resistance. The composite material provided by the invention is prepared from followingraw materials in parts by weight: 100 parts of natural rubber, 2 to 4 parts of polyvinylidene fluoride, 5 to 8 parts of epoxy resin, 1 to 3 parts of sulfur, 0.5 to 2 parts of a vulcanization accelerator, 0.5 to 2 parts of zinc oxide, 1 to 2 parts of stearic acid, 2 to 5 parts of an anti-aging agent, 1 to 3 parts of shell powder, 0.5 to 2 parts of silicone stone powder, 0.5 to 1 parts of graphite,1 to 2 parts of calcium carbonate and 2.5 to 3.5 parts of polytetrafluoroethylene powder. The composite material has superior wear resistance and heat resistance.

The invention discloses an alloy powder for plasma cladding. The alloy powder for plasma cladding is mainly composed of, by mass, 51%-65% of chromium, 0%-15% of vanadium, 8.1%-9% of carbon, 6.1%-8% ofboron, 0%-6% of cobalt, 0%-12% of tungsten carbide and the balance Fe and unavoidable impurities. The alloy powder for plasma cladding is especially suitable for plasma cladding of wear-resistant parts, and a cladding layer is high in hardness, good in wear resistance, small in cracking tendency and good in plasma cladding technology performance.

The invention discloses a method for preparing coarse granularity chromium carbide powder capable of simplifying the process, saving the energy consumption, improving the rate of qualified products ina milling process and well meeting requirements of preparation of wear-resistant, corrosion-resistant, high-temperature oxidation resistant novel materials in industries such as hard-face materials,flux-cored wires, high temperature alloys and the like. The method comprises the following steps: burdening chromium sesquioxide powder and carbon, and adding an adhesive to be uniformly mixed; molding with a press after uniform mixing; placing the molded material block in a high-temperature vacuum induction heating furnace graphite crucible, vacuumizing, performing power-on heating and raising the temperature, and maintaining the vacuum degree to be within 200-400Pa; carrying out a vacuum carbonation reaction between the chromium sesquioxide powder and carbon to produce chromium carbide, andcontrolling the carbonation reaction temperature to be 1350-1550 DEG C, wherein the carbonation reaction time is 8-15 hours; enabling the vacuum degree to be less than 100Pa, filling the furnace withargon after the carbonation reaction is completed, controlling the pressure in the furnace to be 40-80kPa, and increasing the heating power to melt the chromium carbide sintered body so as to obtain achromium carbide ingot; crushing the chromium carbide ingot into particles with the granularity of less than 10mm by using a mechanical method, milling by an impact crusher, and passing through a 60-mesh sieve, thereby obtaining the coarse granularity chromium carbide powder.

The invention provides a hinge with a spring-back function. The hinge comprises a female hinge part, a male hinge part and a hinge core, wherein the female hinge part and the male hinge part sleeve the hinge core through a shaft sleeve I and a shaft sleeve II separately; a wear-resistant plastic rubber sleeve is arranged on the inner wall of each of the shaft sleeve I and the shaft sleeve II; a hinge gland sleeving in the shaft sleeve I is arranged on each of the two end heads of the hinge core; the outer surface of the hinge core is coated with damping oil; fixing devices are symmetrically arranged on the female hinge part and the male hinge part; a spring is arranged between the two fixing devices; and a plurality of screw holes are further formed in the female hinge part and the male hinge part. The hinge provided by the invention has the function of a spring hinge due to the arrangement of the spring between the fixing devices, and various collision beads do not need to be installed after the hinge is installed, so that the occurrence of the phenomenon of the movement of a door plate due to wind blowing can be effectively avoided; and moreover, the hinge is good in wear-resistant and silencing functions due to the arrangement of the wear-resistant plastic rubber sleeves and the damping oil, so that the service life of the hinge is prolonged.

The invention provides a nylon enhanced rubber conveyer belt, comprising the following components in parts by weight: 60-90 parts of rubber, 10-50 parts of nylon, 2-5 parts of vulcanizator, 1-8 parts of promoter, 20-180 parts of filler, 10-20 parts of softener and 1-1.5 parts of antiager. The rubber and the nylon are used as base materials, are added with a certain amount of compounding agent and paster to change the physical and mechanical properties of the rubber and the nylon, and finally are prepared into the product in the invention by a special production process, thus solving the deficiencies of poor wear resistance, short application life, complicated replacement and the like of the existing conveyer belt. The invention has bright appearance, superior oil-resistant, ageing resistant, wear resistant, acid-base resistant and scratch resistant properties as compared with the pure rubber products and wool materials, and excellent physical, chemical and mechanical prosperities. The invention can be applicable to the posttreatment production line of textile machinery, is suitable for various fields requiring heat resistant and wear resistant production, and can be widely used in high temperature conveying occasions such as textile industry, cremation industry, mining industry, metallurgical chemical industry and the like.