前言在伟大的批林批孔运动中,在上海铁合金厂党委的直接领导下,以工人为主体的三结合试验小组,坚决贯彻毛主席“独立自主,自力更生”、“走自己工业发展道路”的方针,继纯氧顶吹转炉试制中碳铬铁成功之后,在国内外纯氧底吹炼钢新技术的启发下,坚持“实践第一”的观点,在顶吹试生产的同时,进行了纯氧底吹转炉炼制中碳铬铁的 Preface In the great bidding and bodhisattva movement, under the direct leadership of the party committee of Shanghai Ferroalloy Factory, the three-pronged trial team with workers as the mainstay firmly implemented Chairman Mao’s guideline of “independence, self-reliance and development of our own industry” Inspired by the new technology of pure oxygen bottom blowing steel at home and abroad, following the successful trial of medium carbon ferrochromium from pure oxygen top-blown converter, the “practice first” point of view was adopted. At the same time, Oxygen bottom blowing converter refining carbon ferrochrome