渗氮时间愈长，试样的氮化量愈多。
The longer nitriding time, the more amount nitrogen pick-ups.
研究了减温阀门气体渗氮工艺，分析了渗氮温度、渗氮时间对其力学性能的影响。
The technology of gas-nitration of the reducing-temperature valve was studied. The effects of nitration temperature and time on the mechanical properties were analysed.
结果表明，固态渗氮过程中钢中氮的平均质量分数与渗氮时间的平方根成正比，渗氮反应速率受钢的化学成分影响；
When the temperature was higher than 1373 K, the dissolved nitrogen would release and the rate of nitrogen release was influenced by chemical composition of those steels.
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。
Because the liquid nitriding the liquid and the work piece direct conduction heating, reduced the work piece heating-up time, raised the azotize speed.
通过比较在不同渗氮温度及时间条件下的渗氮效果，制定合理的工艺参数。
This paper presents the different results on condition of varying nitriding temperatures and time. So the proper technological parameters can be decided.
本文论述短时渗氮的温度、氨分解率、时间、渗后出炉冷却等工艺参数和操作方法的选择。
The choice of such coefficients and operating methods of short time nitriding as temperature, decomposition rate of ammonia, time and the cooling after nitriding is discussed in this paper.
本文论述短时渗氮的温度、氨分解率、时间、渗后出炉冷却等工艺参数和操作方法的选择。
The choice of such coefficients and operating methods of short time nitriding as temperature, decomposition rate of ammonia, time and the cooling after nitriding is discussed in this paper.
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