一九七二年我们从《铸造机械》杂志上了解到广东佛山铸造厂设计、制造了几种类型简易造型机,我厂派员去学习,又结合本厂情况自制四台佛山Z 67—4型造型机。造成后,经多次试调,两个起模缸不同步,起模质量不好。厂领导发动工人和技术人员大搞技术革新,成功地将顶箱式造型机改为漏模式造型机。投产一年多来,运转正常,为生产作出了贡献。 In 1972, we learned from Foshan Foundry Machinery Co., Ltd. about the design and manufacture of several types of simple molding machines in our foundry machinery magazine. We dispatched staff to study and combine our factory with four Foshan Z 67-4 Molding machine. After the result, after several trial, two from the mold cylinder is not synchronized, the quality of the mold is not good. Factory leaders and technicians to launch large-scale technological innovation, the success of the top box-type machine to drain the model machine. Put into operation more than a year, functioning normally, contributed to the production.