基于金属型铸造稀土低铬铸铁磨球的质量控制  

Quality Control of Rare Earth Low Chromium Cast Iron Grinding Ball Based on Permanent Mould

作　　者：熊其兴[1] 

机构地区：[1]武汉职业技术学院机电工程学院,湖北武汉430074

出　　处：《热加工工艺》2011年第11期56-57,61,共3页Hot Working Technology

摘　　要：分析导致稀土低铬白口铸铁磨球失效的主要原因是:碳化物呈连续网状分布和铸造缺陷。通过控制成形工艺、化学成分、孕育处理、热处理工艺等影响因素,使之连续网状碳化物孤立断网,以及减少气孔、夹杂、缩松等缺陷,获得了致密健全的磨球,有效提高了稀土低铬白口铸铁磨球质量。The reason of low chromium white cast iron grinding ball is net carbide and casting defect. The compact and complete grinding ball production can be obtained by controlling forming technology, chemical composition, inoculation, heat treatment and etc., which can effectively avoid the failures tike blowhole, slag enclosure, pinholes and netted carbide breaking up. By the above methods, the quality of rare-earth low chromium white cast iron grinding ball is improved.

关 键 词：低铬铸铁磨球 稀土 金属型 质量控制 

分 类 号：TG249.3[金属学及工艺—铸造]