A method of producing nitrogen-alloyed steel is considered. The nitrogen alloying technologies based on the use of nitrided ferromanganese and nitrogen purge gas are analyzed and compared to choose the most effective one for the TAGMET conditions. To produce SA 20A steel with a regulated nitrogen content (100–300 ppm), it is proposed to purge metal with nitrogen and argon during treatment in a ladle furnace and during and after degassing. Proprietary software controlling the purging of steel with nitrogen and argon from the control panel of the ladle furnace and the vacuum degassing unit has been developed. This ensured effective control of the nitriding process and achievement of the required nitrogen content in steel. Changing over from alloying with nitrided ferromanganese to purging with nitrogen gas made it possible to eliminate the pyroelectric effect and to reduce the secondary oxidation and contamination of steel with non-metallic inclusions.

考虑一种生产氮合金钢的方法。对基于氮化锰铁和氮气吹扫气体的氮合金化技术进行了分析和比较，以选择最有效的 TAGMET 条件。为了生产具有规定氮含量（100-300 ppm）的 SA 20A 钢，建议在钢包炉处理期间以及脱气期间和脱气之后用氮气和氩气净化金属。已经开发出通过钢包炉和真空脱气装置的控制面板控制用氮气和氩气吹扫钢的专有软件。这确保了渗氮过程的有效控制和钢中所需氮含量的实现。由氮化锰铁合金改为氮气吹扫，可以消除热释电效应，减少钢的二次氧化和非金属夹杂物的污染。