双金属液-液复合耐磨板锤的工艺研究  

Bimetal Liquid-Liquid Composite Technologies for Producing Wear-Resistance Plate Hammer

作　　者：李继文[1,2] 张国赏[1] 魏世忠[1,2] 徐流杰 

机构地区：[1]河南科技大学材料学院,河南洛阳471003 [2]河南省耐磨材料工程技术研究中心,河南洛阳471003

出　　处：《铸造》2010年第3期300-303,共4页Foundry

摘　　要：双金属液-液三次浇注——双层复合铸造工艺成功地应用于耐磨板锤的生产。先浇注高铬铸铁,中间层浇注低合金钢,最后再次浇注高铬铸铁。合理的铸造工艺设计,适当的界面保护措施与浇注间隔,是实现三层金属之间良好冶金结合的关键工艺技术。合理的热处理工艺,可以同时满足两种合金性能的良好匹配,使板锤获得良好的综合性能。The wear-resistance plate hammers are successfully made by means of the bimetal liquid-liquid composite technologies. The innovative point is that the liquid metal was poured by three times, the high chromium cast iron first, low alloy steel second and the high chromium cast iron once more. The key technologies to achieve the metallurgical bonding on the interface are the reasonable casting technological design, the proper interface protection measures and the controllable pouring interval. The bimetal plate hammers can obtain the good match of mechanical properties by means of the reasonable heat treatment process.

关 键 词：双金属液液复合 冶金结合 板锤 

分 类 号：TG24[金属学及工艺—铸造]