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缩短时间的气体氮化可以在氨和含碳气体的混合气氛中进行,也可以在氨和氮、氨和氧等混合气氛中进行。靠离子化作用、辉光放电或磁场作用等可以加速气体氮化。本研究将确立如此明显效果的成就,即采用低强度(25～30奥斯特)的磁场和工业频率50赫的励磁电流就足以加速氮化的进程。这样一来可以消除气体氮化的主要缺点之一——氮化物层的脆性。此法几乎不须要增补费用,因为它可以利用工业频率的电流,并且将大批生产的设备稍为改装一下就可以用。
The gas nitriding with a shortened time can be carried out in a mixed atmosphere of ammonia and a carbon-containing gas, or in a mixed atmosphere of ammonia and nitrogen, ammonia and oxygen. By ionization, glow discharge or magnetic field can speed up the gas nitriding. This research will establish such a significant achievement that the use of a low-intensity (25-30 oersted) magnetic field and an industrial frequency of 50 Hz of excitation current is sufficient to accelerate the nitridation process. This eliminates one of the major disadvantages of gas nitriding - the brittleness of the nitride layer. This method requires little additional cost because it can take advantage of the current at industrial frequencies and adapt a mass production of equipment to a slightly modified version.