随着人们生活水平的提高,对环境的要求越来越高,割草机的需求越来越多,其核心部件中的铸铁件市场前景广阔。割草机中的齿轮箱体等球铁件,因工作环境恶劣,必须具有很好的物理和力学性能。齿轮箱体铸件的生产,从合金熔炼、造型材料的选用,到铸 As people’s living standards improve, the environment is more and more demanding, more and more demand for lawn mowers, the core components of the cast iron market prospects. Mower in the gear box and other ductile iron pieces, due to poor working conditions, must have good physical and mechanical properties. Gearbox casting production, from the alloy melting, modeling materials selection, to cast