Material selection of the hottest bearing pedestal

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Selection of bearing block material

Design of sheet metal inspection tool for machining on automatic lathe, then the whole batch cannot be delivered. 3Cr13 stainless steel parts. Selection of processing technology and equipment for automobile longitudinal beam. Thread cutting compound cycle G76 command coordinate system and motion direction introduction. Gantry WEDM decoding simulation program design. Design and manufacture of new mouse base based on UG software cad/cam function. Machine Tool Association: towards "high-quality service brand association" Continue to work hard on the principle of frequency converter introduction Seiko launched low power consumption and high ripple suppression voltage regulator operating procedures for roller type sand mixer bearing pedestal superfinishing machine tool equipment development made a breakthrough in the treatment of waste liquid of metal cutting fluid CITIC relaxed exit in 2014 Processing technology of valve seat and guide hole of cylinder head of heavy-duty double column vertical lathe jointly built by China downshift heavy machinery and Qiyi machinery ac610m/ac630m high-precision turning brand typical CAM Platform NC milling programming function comparison application development direction of the world machine tool industry full analysis how to solve the problem of garbled code after Chinese pro/e engineering drawings are converted to AutoCAD Application Prospect of detection technology in automobile manufacturing corrosion friction wear resistance and lubrication strength of structural materials bearing seats The directly connected part of the alloy bearing bush bearing pedestal bears the load with relative motion to reduce friction and wear. The bearing bush materials put forward various requirements. The friction coefficient and wear resistance meet the following requirements. The bearing pedestal has sufficient compressive strength, fatigue strength and impact resistance. The alloy thickness of the bearing pedestal is 0.0130.13mm. The adhesion load speed bearing pedestal clearance is too small, and the surface finish lubrication is poor. Pay attention to careful selection of materials to match and prevent The bearing bush is on the bearing seat, and the part directly in contact with the shaft bears the load and has relative motion with the shaft

in order to reduce friction. 1. After unpacking and cleaning, wear puts forward various requirements for bearing bush materials. In addition to requiring small friction coefficient and wear resistance between friction pairs, the following points should also be met It shall have sufficient compressive strength, fatigue strength and impact resistance. The alloy thickness of the bearing seat is (0..13) mm. Good adhesion resistance. When the load is large, the speed is high, the bearing seat clearance is too small, the surface finish is not high, and the lubrication is poor, attention should be paid to carefully selecting the matching of materials to prevent the adhesion, wear and gluing of friction pairs. It has adaptability and the ability to accommodate foreign matters. The material with low hardness, good plasticity and low elastic coefficient of ordinary flexible packaging manufacturers has good adaptability and the ability to accommodate foreign matters. Good corrosion resistance, low price and sufficient source. Colloidal deposits formed by oxidation will corrode the bearing material. The commonly used materials of bearing shells and bearing seat liners are divided into two categories: metallic materials and non-metallic materials. Ordinary gray cast iron, wear-resistant cast iron, and nodular cast iron are suitable for bearing seats with low speed, light load, or open transmission. Mechanism: the flake or spherical graphite composition in the material covers the surface to form a graphite layer for lubrication. Zchsnsb has good corrosion resistance, strong gluing resistance, strong combination with steel back, and high price. It is suitable for high-speed and heavy load. For example, locomotive and vehicle zchpbsb has poor gluing resistance, poor thermal expansion, and brittle, which is suitable for medium speed and medium load. This Babbitt alloy has good wear resistance, anti scuffing, and high thermal conductivity, and is most suitable for bearing materials. Zcupb30 is a bimetal cast or sintered on the inner surface of the steel back bearing bush, with excellent adhesion resistance. Zcusn10-l has good friction reduction and wear resistance. It is the best bearing bush material. The hardness and strength of this kind of material are higher than Babbitt alloy at high speed and heavy load, with corrosion resistance, but the running in performance is poor. The matching journal requires higher hardness and finish, which is suitable for medium speed and heavy load. Low tin aluminum alloy, containing sn0.5 high tin aluminum alloy, containing SN20%. Materials such as locomotive diesel have high strength, corrosion resistance and good thermal conductivity. Iron powder + graphite powder or copper powder + graphite powder → press forming → sintering to form pore structure, with pores accounting for 15 ~ 35% → soaking in oil → oil bearing seat. Due to its poor toughness, this kind of bearing bush is only suitable for stable load and medium and small speed, and is used in occasions with poor lubrication conditions

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