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我厂耐火材料车间一九五三年以前流钢砖是用手工成型。由于压力不均匀、抽心子手不平稳等原因,常常发生飞皮、松砂等现象,半成品报废率约40％,成品报废率达60％,由成品到烧成阶段合格品只有25％左右,损失很大而且供不上炼钢车间的需要,情况十分严重。当时经过研究,认为有改用机器压制办法的必要,初步提出采用推钢机式的机器两端横压,
Before 1953, the steel brick in our refractory workshop was formed by hand. Due to uneven pressure, pumping unscrupulous reasons such as unsmooth, often occur Pippi, loose sand and other phenomena, semi-finished products scrap rate of about 40%, finished scrap rate of 60% from the finished product to the firing stage of qualified products only about 25% Loss is very large and can not meet the needs of the steel plant, the situation is very serious. At that time, after research, that there is a need to switch to the use of machinery to suppress the initial proposed using push-type machine at both ends of the transverse pressure,