nodular iron

基本解释

Foundry method, melting process, heat treatment process for nodular iron crankshaft was introduced and the measures to prevent common defects were described.
介绍了球墨铸铁曲轴的铸造方法、熔炼工艺和热处理工艺，同时描述了预防一般缺陷的措施。
The morphology of austenite dendrites in shrinkage porosity in nodular iron is displayed by the color etching technique and the formation mechanism of shrinkage porosity has been analyzed.
采用着色腐蚀技术，金相显示了球墨铸铁缩松区中奥氏体枝晶组织形貌，分析了球铁缩松的形成机制。
The production conditions, foundry method and melting process for mass production of nodular iron couplers used for large trucks were introduced.
介绍大批量生产大型拖车用球墨铸铁连接器的生产条件、铸造工艺、熔炼工艺。