防止铸件废品有两种方法,即经常改善车间组织上和技术上的生产条件,以及在各种零件上具体地消除各种废品。这两种方法应同时进行,并相互补充。否则车间的平均废品率低,并不说明在个别零件上废品率就不高;相反,消除了个别零件的废品,也并不能防止废品总数的增长。 There are two ways to prevent casting waste, that is, to constantly improve on-plant organizational and technical conditions of production and to eliminate all kinds of waste on various parts in particular. These two methods should be carried out simultaneously and complement each other. Otherwise, the average scrap rate in the workshop is low, which does not mean that the scrap rate is not high on individual parts. Conversely, the elimination of the scrap of individual parts does not prevent the total number of scrap from increasing.