An alloy of vermicular cast iron, rail vehicle brake disc and casting method, chemical composition and quality percentage of vermicular cast iron alloy is C:3.3 ~ 3.5%, Si:2.3 ~ 2.5%, Mn:0.4 ~ 0.7%, Cu:0.6 ~ 1%, Mo:0.2 ~ 0.6%, Ni:0.6 ~ 1%, P = 0.07%, S = 0.02%, and the amount of more than Fe. Alloy vermicular graphite cast iron has good thermal conductivity, strength, wear resistance and other physical properties. Based on the alloy vermicular graphite cast iron, the brake disc of the track vehicle is not easy to form hot crack, and the hot crack is not easy to expand.
【技术实现步骤摘要】
【国外来华专利技术】PCT国内申请,说明书已公开。
【技术保护点】
PCT国内申请,权利要求书已公开。
【技术特征摘要】
【国外来华专利技术】2014.09....
【专利技术属性】
技术研发人员:谢达昕,封雪平,张棣,鲍飞,张军,
申请(专利权)人:常州朗锐铸造有限公司,中车戚墅堰机车车辆工艺研究所有限公司,
类型:发明
国别省市:江苏,32
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