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1·QPQ technology is a surface treatment technology which consists essentially of liquid nitriding and liquid oxidizing.

Q PQ技术是一种主要包括盐浴渗氮和盐浴氧化的表面处理技术。

2·Because the liquid nitriding the liquid and the work piece direct conduction heating, reduced the work piece heating-up time, raised the azotize speed.

液体氮化由于液体与工件直接传导加热，缩短了工件加热时间，提高了渗氮速度。

3·Two surface heat-treatment processes, liquid nitriding and sulfurizing, are used to compare with the current production process of liquid carburizing, with other variables remaining constant.

两种表面热处理液体渗氮及渗硫工艺与现行生产上原采用之液体渗炭淬火处理工艺，在尽量保持其他可变数不变的情状下加以比较。