汽车制动鼓Cr灰铁铸件的生产实践

Productive Practice of Cr Gray Cast Iron Used in Auto Brake Drum

介绍了用0.2％～0.4％Cr灰铁代替HT200生产汽车制动鼓的生产技术,分析了铁液化学成份和生产要点。该方法提高了铸件的强度、硬度、耐磨性和切削加工性能,铸造性能也得到改善。实践表明,该生产方法大大降低了废品率,经济效益显著。

Productive technology of auto brake drum using 0.2%-0.4%Cr gray cast iron in place of HT200 has been introduced with analysis of chemical composition of melted iron and productive gist, which has enhanced such as hardness, abradability, machinability and casting property with dramatic decrease in defective index and increase in economic benefits proved in practice.