我厂铸造车间于一九七二年七月安装了一台 Z6625型抛砂机,但由于设备本身的问题和其它原因,一直没有使用.一九七四年二月,在党组织的领导下,铸造车间组成了有老工人参加的三结合技术革新小组,对 Z6625抛砂机进行改进,改进后的抛砂机已于一九七四年十二月用于生产.现将我们对原 Z6625抛砂机存在问题的改进和改进后抛砂机的使用体会简介如下. Our factory’s foundry installed a Z6625 sand throwing machine in July 1972. However, due to equipment problems and other reasons, it has not been used. In February 1974, under the leadership of the Party organization. The foundry workshop formed a three-joint technology innovation team with old workers and improved the Z6625 sand throwing machine. The improved sand throwing machine was used for production in December 1974. Now we have the original Z6625. The improvement of the sand thrower and the improvement of the sand thrower after use are described below.