105 t灰口铸铁钢锭模开裂原因分析  

Analysis of Cracking Reason of 105 t Grey Cast Iron Ingot Mold

作　　者：殷立涛 任凤章[3] 任伟[4] 张航宇 韩仰 YIN Litao1,2, REN Fengzhang3, REN Wei4, ZHANG Hangyu1, HAN Yang1(1. CITIC Heavy Industries Co., Ltd., Luoyang 471000, China; 2. State Key Laboratory of Heavy Mining Equipment, Luoyang 471000, China; 3. School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang 471000, China; 4. Luoyang Quality and Technical Supervision Inspection and Testing Center, Luoyang 471000, Chin)

机构地区：[1]中信重工机械股份有限公司,河南洛阳471000 [2]矿山重型装备国家重点实验室,河南洛阳471000 [3]河南科技大学材料科学与工程学院,河南洛阳471000 [4]洛阳市质量技术监督检验测试中心,河南洛阳471000

出　　处：《热加工工艺》2018年第5期254-256,共3页Hot Working Technology

基　　金：国家自然科学基金项目(31471658)

摘　　要：某105 t灰口铸铁钢锭模在第一次浇注过程中发生开裂。本文通过宏观断口分析、化学成分分析、低倍检验、金相检验对开裂原因进行了分析。结果表明：缩孔、大量疏松和部分C型石墨是导致钢锭模失效的主要原因。A 105t grey cast iron ingot mold cracked in the first casting process. The cracking causes were analyzed by macro-fracture analysis, chemical composition analysis, low magnification test and metallographic examination. The results show that the cracking of ingot mold is mainly caused by shrinkage, a lot of loose and apart of C-type graphites.

关 键 词：灰口铸铁 钢锭模 开裂 缩孔 

分 类 号：TG250.6[金属学及工艺—铸造] TG143[一般工业技术—材料科学与工程]