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山西忻州铁合金厂等单位在碳热法和电硅热法的基础上,提出了一种硅钙合金生产的新工艺——碳硅热法。该工艺既能生产碳热法生产的含钙较高(Ca>24％)的硅钙合金产品,在一台矿热炉内实现分层加料,延长冶炼周期,又具有电硅热法电耗低,产量较高的特点,达到了降低生产成本,增加产品经济效益的目的,为硅钙合金的优质、高产、低耗闯出了一条新路。新工艺具有下列特点:①炉况非常顺行,坩埚区扩大,易操作,电极插入较深,电流稳定,电极在炉底作功好,
Shanxi Xinzhou ferroalloy plant and other units in the carbon thermal method and electric silicon thermal method, based on the proposed a calcium-silicon alloy production of new technology - carbon-silicon thermal method. The process can not only produce the calcium-calcium alloy products with high calcium (Ca> 24%) produced by the carburizing method, realize layered feeding in a submerged arc furnace, extend the smelting cycle, and also have the electricity consumption by the electric silicon heating method Low output and high output, thus achieving the purpose of reducing the production cost and increasing the economic benefits of the product, thereby breaking a new road for high-quality, high-yield and low-consumption silicon-calcium alloy. The new process has the following characteristics: ① furnace condition is very smooth, the crucible area is expanded, easy to operate, the electrode is inserted deeper, the current is stable, the electrode works well in the hearth,