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用渗氮法提高高速钢刀具的切削寿命，是我们所熟知的方法。有的工厂正在进行这方面的试验工作。但碳素工具钢及合金工具钢渗氮后所具的优越切削性能，还不会引起我们的注意。这篇著作介绍了常用工具钢在渗氮后增加了热硬性，提高了切削寿命１．５至３倍。我们在高速钢还不能充分自给的今日，碳素工具钢及合金工具钢应当是刃具材料之一，因此其氮化後切削寿命的提高是值得我们注意的事情。这不但能节约工具材料，并且能减少工人因换刀而损失的工时。本文指出，渗氮後耐磨性可提高二至五倍，这对量具制造来说也是极有意义的。同时，氮化不像氰化有中毒的危险，操作安全，不需隔离的房屋。刃具厂、量具厂和自制刃具、量具较多的机床厂在易于取得液能氮的条件下，将现有的箱形电炉酌为改装，工具钢的氮化处理是应该被采用，而且也是可付诸实施的方法。
Nitriding method to improve high-speed steel cutting tool cutting life, is a well-known method. Some factories are conducting experiments in this area. But carbon tool steel and alloy tool steel after nitriding with superior cutting performance, will not cause our attention. This work describes the commonly used tool steels that increase the hot hardness after nitriding and increase the cutting life by 1.5 to 3 times. We are still not fully self-sufficient in today’s high-speed steel, carbon tool steel and alloy tool steel should be one of the cutting tool, so its nitriding cutting life improvement is worth our attention. This not only saves the tooling material, but also reduces the number of man-hours lost by a worker as a result of a tool change. This paper points out that the wear resistance after nitriding can be increased by two to five times, which is also of great significance to gauge manufacturing. At the same time, nitriding is not as dangerous as cyanide poisoning, safe operation, without isolation of the house. Cutting tool factory, measuring tool factory and homemade cutting tools, measuring tool more machine tool factory in easy access to liquid nitrogen conditions, the existing box-shaped electric furnace as modified, tool steel nitriding should be used, but also Put into practice the method.