石英砂是铸钢生产的主要造型材料。采用粘土粘结剂的造型砂,其铸型在一次浇注后,由于混入大量泥、铁钉、钢粒、块状等夹杂物,一般失去了造型用砂应有的基本性能,而变成废物被抛弃。这既影响厂区内外的环境,又增加了铸造生产成本。 我厂于1976年9月投产一套铸钢砂气流 Quartz sand is the main molding material for cast steel production. Modeling sand using clay binder, the casting after a casting, due to the mixing of a large number of mud, nails, steel particles, lumps and other inclusions, the general loss of modeling sand should have the basic performance, and become waste being abandoned. This not only affects the environment both inside and outside the plant, but also increases the casting production costs. I plant in September 1976 put into operation a set of cast steel sand airflow