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li zi dan hua jie shao
Pages: 12-14
Year: Issue:  1
Journal: Heat Treatment of Metals

Keyword:  离子氮化炉氮化层氮化工艺零件表面氮离子气体氮化表面硬化直流电场设备稀薄气体;
Abstract: <正> 一、原理离子氮化的原理是使氮原子在直流电场中成为带电的离子,氮离子打入金属零件表面形成氮化层,以达到表面硬化的目的。实现的方法是在一真空炉腔内充以含氮的稀薄气体,气压为1~10毫米水银柱,以零件为阴极,炉壁为阳极,通上几百伏的直流电压,在电场的作用下,带正电的氮离子以很高速度冲击零件表
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