1990年6月5日上午,河北乐亭县水暖管件厂发生一起砂轮破碎事故,防护罩被打坏,操作者因头部被砂轮碎片击中而死亡。 造成这起事故的原因有三点: 第一是砂轮管理不当。该厂库存砂轮上下码放,底层的砂轮受到不均匀压力,影响砂轮强度。此外,该厂对砂轮磨削操作无管理制度和操作规程 On the morning of June 5, 1990, a grindstone crushing accident occurred at the plumbing fittings factory in Laoting County, Hebei Province, and the protective cover was damaged. The operator died because the head was hit by a grinding wheel debris. There are three reasons for this accident: The first is the improper management of the wheel. The factory puts the grinding wheels on top and bottom, and the underlying grinding wheel is subjected to uneven pressure, which affects the strength of the grinding wheel. In addition, the mill has no management system and operating rules for grinding wheel grinding operations.