一、前言 我国从1962年开始,研究使用柳毛低碳磷片状石墨作浇铸镇静钢用保护渣,钢锭质量有了显著提高,在国内很快得到推广。随着我国钢铁工业的发展,对柳毛石墨的需求量不断增加,出现供不应求的现象。有时只好用麻山、穆棱等地石墨代替,但效果不及柳毛石墨。 I. Introduction China started from 1962 to study the use of willow hair low-carbon flake graphite casting slag for the use of mold powder, ingot quality has been significantly improved in the country was quickly promoted. With the development of China’s iron and steel industry, the demand for willow graphite is continuously increasing, resulting in the phenomenon of short supply. Sometimes had to use Ma Shan, Muling and other places instead of graphite, but less effective than Liu Mao graphite.