众所周知,采用砂轮修磨法清理合金钢和特殊钢钢坯可以提高产品质量。但是,采用什么方式进行修磨效果最好,都是长期以来有争议的问题。修磨方式一般有两种:即局部修磨与全修磨。所谓局部修磨,是将钢坯经磁粉检查, As we all know, the grinding wheel grinding method to clean steel and special steel billets can improve product quality. However, it is the long-held controversial issue that the best way to grind is. Sharpening methods generally have two kinds: that is, partial grinding and repair the whole mill. The so-called local grinding, the billet by the magnetic particle inspection,