煤炭机械用含硼铸铁型轮的组织与性能研究及生产应用  

Investigation on the Microstructure and Properties of Boron Cast Iron for the Shape Wheel Casting in Coal Machinery and Practice

作　　者：子澍[1] 李平[1] 张学昆[1] 

机构地区：[1]北京工业大学材料科学与工程学院,北京100022

出　　处：《铸造技术》2008年第2期184-187,共4页Foundry Technology

摘　　要：为了提高型轮的使用寿命,在原型轮材质HT250基础上加入硼进行微量合金化。试验结果表明,型轮材质的含硼量应控制在0.06%左右,含磷量在0.30%左右。型轮材质的硬质相为含硼碳化物,其形态控制成断续条块状。用该铸铁制造的型轮,使用寿命是HT250型轮的2倍以上。In order to increase service life of the HT250 shape wheel, trace boron was added The results show that the optimum boron and phosphorus in the shape wheel should be about 0.06wt% and0.3wt% respectively. The hard phase is boron carbide, which shape should be controlled into discontinuous block shape. The service life of the boron cast iron shape wheel is twice as long as that of HT250 shape wheel.

关 键 词：硼铸铁 型轮材质 煤炭机械 

分 类 号：TG251.2[金属学及工艺—铸造]