论文部分内容阅读
本文介绍的球墨铸铁亚温等温淬火工艺,是将球墨铸铁加热到F+A+G三相区,然后进行等温淬火得到F+B_下+G复相组织,通过控制热处理工艺得到不同形态、不同数量的铁素体。使亚温等温淬火后球墨铸铁的综合机械性能优于常规等温淬火处理的球铁。
The ductile iron sub-temperature isothermal quenching process introduced in this paper is to heat the ductile iron to the F + A + G three-phase region, and then isothermal quenched to obtain the F + B_ + G complex phase, and the different forms are obtained by controlling the heat treatment process, Different amounts of ferrite. After sub-temperature isothermal quenching ductile iron mechanical properties better than conventional isothermal quenching ductile iron.