煤炭炼钢是近几年研制成功的一种炼钢方法,就是将装入炼钢炉内的废钢和生铁用煤炭熔化精炼成钢。“二次化铁”炼钢是将装入化铁炉内的生铁和约10%的废钢用焦炭熔化成铁水,再将铁水装入炼钢炉内进行冶炼的一种炼钢方法。本文介绍达两种炼钢方法 Coal-making steel is a steelmaking method successfully developed in recent years. It is to melt steel scrap and pig iron loaded into the steelmaking furnace into steel. “Iron ore” steelmaking is a steel making method in which pig iron charged in a steel furnace and coke melted in a scrap containing about 10% are melted into molten iron, and the molten iron is charged into a steelmaking furnace for smelting. This article describes up to two steelmaking methods