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压缩机、透平机和泵等传动设备,多采用2ChSnSb11-6锡基轴承合金做为轴瓦、活塞托瓦的耐磨衬料。其成分为:铜:5.5～6.5％,锑:10～12％;其余为锡。铁、砷、铅和铋等杂质总量不超过0.55％。这类合金的熔点为241～364℃。该合金是在400℃时浇铸在瓦壳上的。瓦壳上有燕尾槽并挂有一层锡,作为过渡层,以使合金牢固地粘附在瓦壳上。由于在浇铸和使用中,可能产生脱层,夹渣、气孔、磨损等缺陷,造成
Compressors, turbines and pumps and other transmission equipment, multi-use 2ChSnSb11-6 tin-based bearing alloy as a bearing, piston Tuowei wear lining. Its composition is: copper: 5.5 ~ 6.5%, antimony: 10 ~ 12%; the rest is tin. The total amount of impurities such as iron, arsenic, lead and bismuth does not exceed 0.55%. The melting point of these alloys is 241 ~ 364 ℃. The alloy was cast on the tile at 400 ° C. There is a dovetail groove on the tile shell and a layer of tin is hung as a transitional layer so that the alloy adheres firmly to the tile shell. As in the casting and use, may have delamination, slag, porosity, wear and other defects, resulting