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一、前言聚苯乙烯泡沫塑料模实型铸造(简称“实型铸造”),是六十年代发展起来的新工艺。其优点是节省制造本模的木材。我厂在七十年代中期发展了这一技术,从模型制造到造型浇注等一系列工艺过程都作了不同程度的工作,至今已生产了上千吨铸件,取得了一定的成效。二、实型铸造用聚苯乙烯聚苯乙烯是由苯乙烯聚合而成的。对铸造用的聚苯乙烯的要求是: 1.比重轻,并有一定的强度。目前我国市场上出售的有两种规格:铸铁用的铸-1,比重0.015～0.018克/厘米~3;铸钢用的铸-2,比重为0.020～0.025克/厘米~3。 2.泡沫颗粒均匀,无小孔。
First, the foreword Polystyrene foam mold real casting (referred to as “real casting”), is the sixties developed new technology. Its advantage is to save the manufacture of this model of wood. I plant in the mid-1970s to develop this technology, from modeling to molding casting and a series of different degrees of work done, so far has produced thousands of tons of castings, and achieved some success. Second, the real casting polystyrene polystyrene is made by the polymerization of styrene. The casting of polystyrene requirements are: 1. Light weight, and have a certain intensity. At present, there are two kinds of specifications on the market for sale in our country: cast iron for cast iron-1 with the proportion of 0.015-0.018g / cm3; cast-cast steel for cast steel -2, the proportion is 0.020-0.025g / cm3. 2. Foam particles uniform, no holes.