有一段时期磨具制造厂因磨具斑点超过标准规定而报废的现象极为严重,成为行业中的重大问题,而磨料磨具标准上对斑点废品的规定根据不足,意见难以统一。在磨具使用上有些厂认为磨具上斑点在磨削中起“破坏”作用而不用,也有的厂反映只是给加工件带来烧伤 For a period of time, the abrasive factory was seriously scrapped due to abrasive specks exceeding the standard requirements, which became a major issue in the industry. However, the standards for abrasive abrasives on speckled scrap products were not sufficient and the opinions were difficult to unify. Some plants in the use of abrasive that abrasive on the spot in the grinding from the role of “destruction” instead of, but also some plants reflect the workpiece is only brought to burn