韧性球铁轿车铸件生产技术

Production of Ductile Iron Castings of Car

球铁的基体组织、石墨的形状及多少，对铸铁性能都有较大的影响。本文从轿车铸件技术要求入手，总结以往球铁生产经验，采纳先进生产技术，在改进炉料组成、追求良好基体和球化率以及强韧性能上下功夫，满足了韧性球铁轿车铸件的要求。

Base structure, shape and amount of graphite have important effect on performance of spherical graphite cast nun of which production experience of car castings has been summarized that emphasis on improvement of structure of charging, seeking proper base and sphericization and obdurability can meet requirement.