脉冲电场实现模具钢的等温球化退火效率的改进

Improvements on Pulsed Electric Field to Achieve Die Steel Ball Isothermal Annealing Efficiency

为了解决模具钢生产中碳化物分布不均匀、颗粒大等问题,本文设计了脉冲电场退火和加热保温的热处理工艺改进方法。结果表明:采用改进的球化退火工艺能够有效细化材料的颗粒,使材料组织趋于均匀化,改进了宏观缺陷的分布;材料的综合力学性能也有明显的提高。

In order to sovle the problem of uneven distribution of carbides and granule, pulsed electric field annealing and heat treatment process of heat insulation method were designed. Results show that： material particles can be efficiently granulated using the improved spheroidizing annealing process; material microstructure is homogenization; the distribution of macro-defect improves; and integrated material has greatly improved mechanical properties.