大型球墨铸铁平台的生产实践  

Production Practice of Large Ductile Iron Platform

作　　者：沈闯 刁晓刚 王臆皓 俞志明 穆广录 魏伟 SHEN Chuang;DI AO Xiao-gang;WANG Yi-hao;YU Zhi-ming;MU Guang-lu;WEI Wei(CITIC HIC Heavy Cast-lron Metal Foundry Co., Ltd., Luoyang 471039, Henan, China)

机构地区：[1]中信重工洛阳重铸铁业有限责任公司,河南洛阳471039

出　　处：《铸造》2019年第4期404-407,共4页Foundry

摘　　要：介绍了喂线法生产110 t的大型球墨铸铁平台的生产实践。铸件采用地坑组芯造型、底注开放式浇注系统、喂线法球化处理、多次孕育处理等工艺。结果表明,该生产工艺可行,铸件的力学性能和无损探伤结果均满足合同规定要求。This paper introduces the production practice of large ductile iron platform casting with a weight of 110 t produced by wire feeding method. The bottom gating-unchoked runner system and core assembly molding in the pit was used for producing the ductile iron platform casting. Iron liquild was treated using wire feeding spheroidization method and multiple inoculation method. The results show that the production process is feasible;the mechanical properties and NDT results of the platform casting produced can meet technical specifications.

关 键 词：喂线法球化处理 厚大断面 球墨铸铁 

分 类 号：TG242.2[金属学及工艺—铸造]