60t蠕墨铸铁钢锭模开裂原因分析  

Cracking Analysis of 60 t Vermicular Graphite Cast Iron Ingot Mold

作　　者：史向阳 刘铁山 孙胜伟 宋亚虎 赵学谦 

机构地区：[1]洛阳中信重工机械股份有限公司计量检测中心,河南471039

出　　处：《大型铸锻件》2014年第6期33-36,共4页Heavy Casting and Forging

摘　　要：我公司生产的60 t蠕墨铸铁钢锭模在浇注过程中发生开裂。采用低倍检验、化学成分分析、宏观断口分析、扫描电镜分析、金相检验等方法对开裂原因进行了分析。结果表明:钢锭模开裂的主要原因是石墨漂浮、石墨形态较差以及蠕化率较低。The 60 t vermicular graphite cast iron ingot mold produced by our company has arisen cracking during the pouring process. The cracking causes are analyzed by macroscopic test,chemical components analysis,macro-fracture analysis,scanning electron microscope analysis and metallographic examination. The results show that the cracking of ingot mold is caused by graphite floating,poor graphite morphology and low creep ratio.

关 键 词：钢锭模 开裂 理化分析 

分 类 号：TG245[金属学及工艺—铸造]