目前我国铸造生产大部分还是处于手工操作与半机械化操作的情况下。这样不仅生产效率低,而且劳动强度高,在当前机械工业飞跃发展的时代中,铸造生产的落后状态必需迅速改变,用新技术与机械化、自动化操作来代替落后的生产方式,以便在一个较短的时期内使铸造生产迅速的达到世界上 At present, most of our foundry production is still under manual and semi-mechanized operation. In this way, not only the production efficiency is low, but also the labor intensity is high. In the current era of rapid development of the machinery industry, the backward state of the casting production must be rapidly changed, and new technologies and mechanized and automated operations are used to replace the backward production methods, so that in a shorter period In the period of time, casting production quickly reached the world