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使用半永久性铸型翻铸铸件的方法,是苏联在铸造工业上的先进经验。它是把普通不太规矩的砂箱改为对口箱,用颗粒状的制耐火砖用熟料和细粉状的生耐火土的混合材料制成半永久性铸型,以代替普通砂型。我厂长年用普通砂型翻铸小型铸锭
The method of casting castings using semi-permanent molds is the Soviet Union’s advanced experience in foundry industry. It is to change the common non-standard sand box to the counterpart box, with the semi-permanent mold made of the mixed material of the granular refractory brick clinker and the fine powdery refractory soil to replace the ordinary sand type. I plant long with ordinary sand cast small ingots