Alloy steel was plasma nitirded under the atmosphere of pure nitrogen using active screen plasma nitriding(ASPN)at high voltage and low pressure.

• 采用高电压、低气压的离子渗氮工艺,利用活性屏离子渗氮(ASPN)技术对合金钢在纯氮气氛下进行离子渗氮处理。