机车用灰铸铁件组织中E型石墨的消除  

Elimination of the E type Graphite in the Gray Cast Iron used for Locomotive

作　　者：孙云山[1] 王岩[1] 刘海坤[1] 吕宇靖[1] 

机构地区：[1]中国北车集团大连机车车辆有限公司,辽宁大连116000

出　　处：《铸造设备与工艺》2010年第6期41-42,共2页Foundry Equipment & Technology

摘　　要：在灰铸铁产品金相组织中经常会出现E型石墨,E型石墨的存在严重影响了灰铸铁的性能,遗传因素是E型石墨产生的主要原因。在铁水孕育处理过程中加入增碳剂和加入硅钡复合孕育剂,能够有效抑制E型石墨的产生。The E type graphite found constantly in metallographic structure of grey cast iron affects the property of gray cast iron seriously.The genetic factor is the main reason for the E type graphite.The E type graphite can be effectively restrained by adding carburant and Si-Ba multi-compound inoculant during the liquid iron inoculation.

关 键 词：灰铸铁 E石墨 增碳剂 复合孕育 

分 类 号：TG251[金属学及工艺—铸造]