一、前言冶金用氧及低压冶金在工业上推广应用之后,使产量和质量显著提高。铁合金工业上曾引进这项技术,使精炼产品强化脱硅,缩短冶炼时间,及用低压制取微碳、超微碳铁铬,金属铬、金属钒等。铁合金生产上通常用碳素还原,制碳素铁合金;用硅合金还原,制中低碳铁合金,因为硅化物强于碳化物。目前就中低碳铬铁生产看来,有电硅热法和热兑混炼法二种。电硅热法若能普遍采用热装和精炼末期吹氧脱硅,则可以使单位产品电耗大为降低,但 I. Introduction Metallurgical oxygen and low pressure metallurgy in the industrial promotion and application of the output and quality significantly improved. Ferroalloy industry has introduced this technology, the refining products to strengthen the desiliconization, shortening the smelting time, and the use of low-pressure system to take micro-carbon, ultra-fine carbon iron chromium, metallic chromium, metallic vanadium and so on. Commonly used in the production of ferroalloy carbon reduction, the system of carbon ferroalloy; with silicon reduction, the system of low-carbon ferroalloy, because the silicide is stronger than the carbide. It appears that the current production of low-carbon ferrochrome, there are two kinds of electric silicon heating method and hot-mixing. Electric silicon thermal method if the general use of hot-end equipment and refined oxygen blowing desiliconization, you can make the unit power consumption is greatly reduced, but