摘要
高强度灰铸铁件飞轮和飞轮壳的生产技术可以归纳为:选取适宜的化学成分,并注意各元素之间的合理匹配,即w(C)2.9%～3.1%,w(Si)1.5%～1.8%,w(Mn)0.9%～1.2%,w(P)<0.06%,w(S)0.02%～0.04%;采用合理的熔炼和浇注工艺,其中飞轮类铸件浇注温度为1 370～1 320℃,飞轮壳类铸件浇注温度为1 410～1 360℃;选用新型高效孕育剂、多次孕育等措施,强化孕育效果,改善铸件的基体组织和石墨形态;采用多元低合金化,提高铸件性能。
The production technology of high strength gray iron flywheel and flywheel housing was summarized as follows： optimizing chemical composition and paying attention to the reasonable matching of elements, i.e.： w （C） 2.9% -3.1%, w（Si） 1.5%-1.8%,w（Mn） 0.9%-1.2%, w（P）〈0.06%,w（S） 0.02%-0.04%;adopting proper melting and pouring processes such as the pouring temperature for flywheels castings of 1 370-1 320 ℃, and 1 410-1 360 ℃for flywheel housings castings; adopting high efficient inoculant, and intensifying the inoculation effect with multiple inoculation treatments to improve matrix structure and graphite morphology; alloying the cast iron with multiple elements to increase mechanical properties of the casting.
出处
《现代铸铁》
CAS
2007年第4期20-23,共4页
Modern Cast Iron
关键词
灰铸铁
飞轮
飞轮壳
生产技术
gray iron
flywheel, flywheel housing
production technology
