B型石墨及其形成机理的探讨  

Discussion on Type B Graphite and Its Mechanism of Formation

作　　者：吴家立 柯绿[1] 童建华[1] 张启秀[1] 周玉清 

机构地区：[1]上海工程技术大学

出　　处：《现代铸铁》1990年第2期49-53,共5页Modern Cast Iron

摘　　要：将在不同条件下形成的灰铸铁中的B型石墨分为紧密型、混合型、开放型和松散型四种类型,并用铁水中碳质聚集体CmXn的变化来探讨它们的形成机理。Four kinds of type B graphite were classified based on the metallographic observation and the influence of that on the chill tendency and machinability were studied. The formation mechanism of different kind type B graphite was suggested by authors.

关 键 词：灰铸铁 B型石墨 碳质聚集体 

分 类 号：TG25[金属学及工艺—铸造]