450℃预氧化消除渗碳件表面硬度不足现象

Eliminate Lack of Surface Hardness of Carburizing Parts by Preoxidation at 450℃

采用450℃保温1h预氧化处理后再进行渗碳淬火,消除密封箱式多用炉生产线零件大面积渗碳层不均、表面硬度不足现象,解决引进设备长期质量不稳定问题,取得较好的效益。

By preoxidizing at 450℃ for an hour before carburizing quenching, elimination of uneven depth of carburizing zone and lack of surface hardness that varied in a great range since the sealed multipurpose chamber furnace was imported,the quality of parts treated with the furnace is stable and good benefit was obtained.