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本文从冶金物理化学原理出发,分析了钢包喷吹卤化物合成粉剂对16Mn压力容器钢处理的基本反应过程,并建立超氯势图,提出了“择优氯化”的概念。通过计算机计算得出了平衡条件下各元素与氯的亲和力顺序。理论分析和实验室试验证实,钢中氢的去除是通过生成的氟盐气泡将其吸收带出的,这与以前的观点不同。只要不影响粉剂流动性,卤化物加入量越大越利于脱氢。这一结果为工业生产中合理应用这一新型粉剂提供了具有实用价值的理论依据。
Based on the physicochemical principles of metallurgy, the basic reaction process of ladle sprayed halides synthetic powder for 16Mn pressure vessel steel was analyzed, and the concept of “preferential chlorination” was proposed. The order of affinity of each element with chlorine under equilibrium condition was calculated by computer. Theoretical analysis and laboratory tests confirm that the removal of hydrogen in steel is carried out by the generation of fluoride salts bubbles, which is different from the previous one. As long as it does not affect the fluidity of the powder, the greater the amount of halide added, the more conducive to dehydrogenation. This result provides a theoretical basis for the rational application of this new type of powder in industrial production.