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我厂是从七一年五月开始应用环氧树脂粘补铸件的。当时,我厂各种铸件经加工后,有时出现一些缩松、气孔等缺陷。以往很难解决这个问题。因为如果用一般的方法焊补,铸件往往会因受热而变形,影响了精度,严重的甚至要报废,给国家造成很大损失。为解决这一问题,我们采用了环氧树脂(俗称“玻璃钢”)粘补铸件的新工艺。到现在,在一年零三个月的时间内,我们共粘补了大小各种铸件七百余件,为国家挽回了大量的报废铸件。
Our factory is from May of last year the application of epoxy resin adhesive casting. At that time, I plant a variety of castings processed, and sometimes some shrinkage, porosity and other defects. In the past it was hard to solve this problem. Because if the general method of welding, castings often due to heat and deformation, affecting the accuracy, serious or even scrapped, causing great losses to the country. To solve this problem, we have adopted epoxy resin (commonly known as “glass fiber reinforced plastic”) to make up the new technology. Up till now, in a period of one year and three months, we have cohered a total of over 700 kinds of castings of various sizes and sizes, and have saved a lot of scraps of scrap for the country.