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锡作为微量合金元素加入铁水,能够改善铸铁的基体,使珠光体量显著增长,组织均匀和细化,并能提高珠光体在高温下的稳定性。在机车车辆工业系统中,有许多十分重要的耐磨铸铁件,如活塞环、缸套、活塞和轴瓦等,过去采用普通铸铁或球墨铸铁来制造,寿命较低。例如电力机车活塞环,我们曾参照法国标准配料和铸造,但珠光体量不稳定,不耐磨,
Tin as a trace element added to the molten iron can improve the cast iron matrix, pearlite volume increased significantly, the organization uniform and refined, and can improve the pearlite at high temperature stability. In the rolling stock industrial system, there are many very important wear-resistant cast iron parts, such as piston rings, cylinder liners, pistons and bushings, used to use ordinary cast iron or ductile iron to make, life expectancy is low. For example, electric locomotive piston rings, we have reference to the French standard ingredients and casting, but pearl body volume instability, wear resistance,