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某活塞环厂是专门生产各类柴油机、汽车发动机活塞环的重点厂之一。这类动力机械上的活塞环铸铁件具有重量轻、断面薄、碳当量高、硫量低等特点。该厂熔化设备是0.5t的三相电弧炉和3t的工频炉,铁水熔化温度为1500～1600℃,浇注温度为1400～1500℃。在生产中,以0.4～0.6％的75硅铁进行孕育处理,有时活塞环因其断口上出现白口而报废,因此,必须寻找一种更为有效的孕育剂来提高活塞环的质量。我所研制的碳硅锪复合孕
A piston ring factory is specialized in producing all kinds of diesel engines, automotive engine piston ring one of the key plant. Piston ring cast iron on such power machinery has the characteristics of light weight, thin section, high carbon equivalent and low sulfur content. The plant melting equipment is 0.5t three-phase electric arc furnace and 3t frequency furnace, hot metal melting temperature of 1500 ~ 1600 ℃, pouring temperature of 1400 ~ 1500 ℃. In the production, with 0.4 ~ 0.6% of 75 ferrosilicon inoculation, and sometimes the piston ring because of its fracture appear white and scrapped, therefore, we must find a more effective inoculant to improve the quality of the piston ring. I developed by carbon silicon 锪 compound pregnancy