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49results about How to "Good bite resistance" patented technology

High-temperature metal hard seal ball valve for granular media

The invention provides a high-temperature metal hard seal ball valve for granular media. The high-temperature metal hard seal ball valve comprises a valve body, a ball body, a valve rod, a valve seat and a bottom cover, wherein the ball body is arranged in a cavity in the valve body, the valve rod connected with the ball body extends out of the valve body through a center through hole at the upper part of the valve body, the bottom cover is positioned at the bottom of the valve body and comprises a bottom cover baseplate and a bottom cover shaft, the bottom cover baseplate is movably connected with the valve body, the bottom cover shaft penetrates through a through hole at the lower part of the valve body and is connected with the ball body in the cavity of the valve body, the ball body and the valve seat are made of metal materials, the valve seat is mounted in the valve body and on the inner wall which is in contact with the ball body, a spring seat is arranged on the outer side of the valve seat, a disc spring is mounted in a groove between the spring seat and the valve seat, a pressure ring is arranged on the outer side of the spring seat, the pressure ring is fixedly mounted on the spring seat through a screw, a pendant collet for playing a sealing role is arranged in the contact position of the spring seat, the pressure ring and the valve body, an O ring is arranged in the groove between the valve seat and the valve body, and the O ring is made of fluorine rubber.
Owner:OVIKO GRP CO LTD

Processing technology for lubricating wear-resistant coating of bearing bush of engine

The invention discloses a processing technology for a lubricating wear-resistant coating of a bearing bush of an engine. The processing technology comprises the steps of (1) pretreatment, wherein thesurface of the bearing bush is cleaned, after sand blasting treatment, the bearing bush is placed in a passivation pond for passivation treatment, and after passivation, the bearing bush is cleaned and dried; (2) pre-heating treatment, wherein after pretreatment, the bearing bush is placed in a drying oven and hated to 40-60 DEG C, and the temperature is preserved for 10-30 min; (3) spraying treatment, wherein the bearing bush is taken from the drying oven, and thermal spraying is conducted on the surface of the bearing bush by adopting the wear-resistant lubricating coating; (4) solidifying treatment, wherein the bearing bush is placed in the drying oven and heated to 120-160 DEG C for solidifying, and the solidifying time is 20-30 min; (5) packaging checking. According to the processingtechnology, a spraying mode is adopted for replacing a bearing bush electroplating mode, the environmentally friendly problem is solved, and the production cost is reduced; the processed lubricating wear-resistant coating of the bearing bush of the engine greatly improves the running reliability of the bearing bush of the engine, and the service life is long.
Owner:在邦润滑材料(上海)有限公司

Bearing bush and process thereof for spraying MoS2 on alloy layer

The invention provides a bearing bush and a process thereof for spraying MoS2 on an alloy layer for solving the problem that the alloy layer or the plated layer of the bearing bush peels off frequently. The bearing bush comprises a steel backing layer and the alloy layer fixedly arranged. The alloy layer is provided with a spraying layer fixed with the alloy layer. The alloy layer is one of an aluminum alloy layer or a copper-lead alloy. The spraying layer comprises a PI (Polyimide) resin layer, a MoS2 layer and a PAR (Parylene) lubricating coating sequentially arranged. The PI resin layer is contacted with the alloy layer. The bearing bush can effectively improve the dry grinding resistance, the anti-occlusion performance, the corrosion resistance and the wear resistance through the MoS2 layer by arranging the spraying layer on the alloy layer, the problem that the inner surface of the bearing bush in the installation and use process is scratched is solved, and the service lives of the bearing bush and lubricating oil in the bearing bush are prolonged. The bearing bush is good in practicality, and the whole manufacturing process of the bearing bush is safe and environment-friendly, so that the environmental pollution can be reduced.
Owner:YANTAI CHUNSHENG SLIDING BEARING

HYB-650 copper-based inlaid solid lubricating bearing and manufacturing process thereof

The invention provides an HYB-copper-based inlaid solid lubricating bearing, and relates to the field of bearings. The HYB-650 copper-based inlaid solid lubricating bearing and a manufacturing processthereof comprise a bearing substrate, lace embedded holes and a corrugated solid lubricating column. The bearing substrate comprises a copper-base layer and a sintered layer. The lace embedded holespenetrate through the inner and outer diameters of the bearing substrate. A plurality of lace embedded holes are distributed criss-crossed on the bearing substrate. The HYB-650 copper-based inlaid solid lubricating bearing and the manufacturing process thereof, through special and unique creation of basic mechanism of the solid lubricating bearing, under the premise of not affecting the integrityof the bearing, greatly improves the problem of poor durability of a lubricating oil film of the solid lubrication bearing, and reserves a lubricating strip film which can be used directly for the oilfilm, thereby effectively solves the problem of poor continuous replenishment of a solid lubricant of a general copper-based inlaid solid lubricating bearing, and the problem of the lubrication effect being in a diminishing state when the solid lubricant is not completely consumed.
Owner:HUAYI BEARING TECH JIANGSU CO LTD

Double-layer metal composite material applied to sliding bearings and preparation method of double-layer metal composite material

The invention relates to a double-layer metal composite material applied to sliding bearings and a preparation method of the double-layer metal composite material. A bearing layer of the double-layermetal composite material is made from a copper alloy, an anti-friction alloy layer is made from a medium-high-tin aluminum-based alloy, wherein the content of a tin element in the medium-high-tin aluminum-based alloy is 10 wt% -50 wt%, the sum of an aluminum element and the tin element, by mass is larger than or equal to 90%, the aluminum element and the tin element are the main alloy elements, and the medium-high-tin aluminum-based alloy is the multi-element alloy. The preparation method of the double-layer metal composite material comprises the following steps that the copper alloy for the bearing layer is prepared according to requirements for processing; the medium-high-tin aluminum-based alloy is made into welding wires; and the welding wires are welded to the surface of the copper alloy in an overlaying mode to serve as the anti-friction alloy layer, and the double-layer metal composite material applied to the sliding bearings is obtained. According to the double-layer metal composite material applied to the sliding bearings, the very high bonding strength is achieved, the copper alloy has good fatigue strength, thermal conductivity and corrosion resistance, and the medium-high-tin aluminum-based alloy has good fatigue strength, bite resistance and embedding property.
Owner:SHANGHAI JIAO TONG UNIV

Technology of utilizing liquid-solid rolling cladding method to prepare bimetallic bearing

InactiveCN104690555AGood compressive and tensile mechanical propertiesGood fatigue strengthOther manufacturing equipments/toolsSliding contact bearingsComposite strengthZinc
The invention discloses a technology of utilizing a liquid-solid rolling cladding method to prepare a bimetallic bearing. According to the technical scheme, the technology comprises the following steps: adopting the liquid-solid rolling cladding method combining a casting method with a composite method; directly pouring zinc-based aluminum alloy molten metal to a base metal; cooling, solidifying and rolling by water cooled rolls to produce a composite board without larger plastic deformation. The technology disclosed by the invention has the characteristics as follows: the bimetallic bearing alloy prepared by the technology is excellent in compression resistance, tension resistance, mechanical property, friction performance, high-temperature stability performance and casting property; meanwhile, the liquid-solid rolling cladding method is a near net-shape processing method organically combining the hot dip aluminum plating with aluminum alloy cast rolling, so that the method is high in combined strength, low in production cost, less in equipment investment, high in production efficiency, low in energy consumption and high in composite board binding strength, and further has a good market prospect.
Owner:QINGDAO PINGDU JIUDIAN GOLD MINE

Tribological design and preparation method of FeNiAlNb-based pin shaft multilayer composite structure material

The invention discloses a tribological design and preparation method of an FeNiAlNb-based pin shaft multilayer composite structure material. A FeNiAlNb matrix, an antifriction agent, an anti-wear agent and a reinforcing agent are adopted as the components, a multi-element tabular crystal is prepared, by means of each layer material component design and computation, vibration mixing, hot press molding, multi-layer structure compounding and subsequent machining procedures, the FeNiAlNb-based pin shaft multilayer composite structure material can be prepared. Through reasonable design and optimalproportioning of the matrix alloy, the antifriction agent, the anti-wear agent and the reinforcing agent on a friction film, a bearing transition layer and a matrix bearing layer, the material utilization rate is improved, the production cost is reduced, and the FeNiAlNb-based pin shaft multilayer composite structure material can meet the friction and wear properties under high-low temperature andhigh-load working conditions while having excellent thermal stability and mechanical properties, and also significantly enhances the use precision and service life of the pin shaft on the premise ofobviously improving the connection strength and bearing capacity of the pin shaft.
Owner:ANYANG INST OF TECH

Preparation method for heavy-load high-power vehicle engine high-purity aluminum-tin bearing materials

The invention relates to a preparation method for heavy-load high-power vehicle engine high-purity aluminum-tin bearing materials. The preparation method includes the detailed steps of weighing industrial pure metallic tin, first-level electrolytic copper and special second-level aluminum ingots for re-melting in proportion; weighing first-level potassium fluotitanate; putting the first-level potassium fluotitanate into a constant temperature preheating drying furnace for drying; putting the special second-level aluminum ingots for re-melting into an industrial furnace; adding the industrial pure metallic tin and first-level electrolytic copper after all the special second-level aluminum ingots in the furnace are smelted; sampling and detecting alloy contents; putting the first-level potassium fluotitanate into aluminium alloy melt; and casting. According to the aluminum-tin bearing materials prepared in the method, strength reaches 140-165 megapascals, elongation reaches 15-19 %, brinell hardness reaches 45-51, fatigue strength reaches 90-106 megapascals, abrasion loss reaches 6.7-7 * 10-4 grams, anti-seizure adhesiveness reached the second level, and friction coefficient is 0.038-0.042. Therefore, the prepared bearing materials are high in bearing capacity, are good in abrasion-resistance, antifriction performance and anti-seizure adhesiveness, meet the requirements of a heavy-load high-power vehicle engine, and have broad application prospects.
Owner:GUANGZHOU LIZHONG JINSHAN ALLOY

Multi-layer structure TiNiAlZrNb-based self-lubricating bearing bush material design and preparation method thereof

The invention relates to a multi-layer structure TiNiAlZrNb-based self-lubricating bearing bush material design and a preparation method thereof. The main component of the self-lubricating bearing bush is composed of a TiNiAlZrNb substrate, a soft metal SnCuZnAg and a multi-element composite regulating agent, the machining process of a TiNiAlZrNb-based self-lubricating bearing bush is prepared bya multi-element plate-shaped crystal, and each layer of material is subjected to design calculation and vibration mixing and hot press molding and sample machining and is compounded with a multilayerstructure. Compared with uniformly distributed block body bearing bush materials, and the TiNiAlZrNb-based multi-layer structure composite materials greatly save the material usage amount on the premise of meeting the performance requirements of the bearing bush materials; meanwhile, the multi-layer structure composite materials can replace oil and grease under working conditions such as high temperature and high pressure to achieve good lubricating effect, and the multi-layer structure TiNiAlZrNb-based self-lubricating bearing bush materials have the advantages of green environmental protection, high use precision, long service life.
Owner:ANYANG INST OF TECH

Preparation method for heavy-load high-power vehicle engine high-purity aluminum-tin bearing materials

The invention relates to a preparation method for heavy-load high-power vehicle engine high-purity aluminum-tin bearing materials. The preparation method includes the detailed steps of weighing industrial pure metallic tin, first-level electrolytic copper and special second-level aluminum ingots for re-melting in proportion; weighing first-level potassium fluotitanate; putting the first-level potassium fluotitanate into a constant temperature preheating drying furnace for drying; putting the special second-level aluminum ingots for re-melting into an industrial furnace; adding the industrial pure metallic tin and first-level electrolytic copper after all the special second-level aluminum ingots in the furnace are smelted; sampling and detecting alloy contents; putting the first-level potassium fluotitanate into aluminium alloy melt; and casting. According to the aluminum-tin bearing materials prepared in the method, strength reaches 140-165 megapascals, elongation reaches 15-19 %, brinell hardness reaches 45-51, fatigue strength reaches 90-106 megapascals, abrasion loss reaches 6.7-7 * 10-4 grams, anti-seizure adhesiveness reached the second level, and friction coefficient is 0.038-0.042. Therefore, the prepared bearing materials are high in bearing capacity, are good in abrasion-resistance, antifriction performance and anti-seizure adhesiveness, meet the requirements of a heavy-load high-power vehicle engine, and have broad application prospects.
Owner:GUANGZHOU LIZHONG JINSHAN ALLOY
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