用不分型实体模法铸出的铸件,具有精度高、在大多数情况下不需要下芯、没有铸造斜度和飞边等优点,于是减轻了铸件的重量,并减少了造型和清理的劳动量。当使用不加粘结剂的干石英砂作为型砂时,也可能显著地减少铸件的落砂劳动量。在单件生产中,由于泡沫塑料的实体模可用机械加工方法制成,因此经济性是很显然的。在成 Castings made with splitless solid mold have the advantages of high precision, in most cases no lower core, no casting inclination and flashing, etc., thus reducing the weight of the castings and reducing the styling and cleaning up Labor. It is also possible to significantly reduce the amount of sand removal from the castings when using dry quartz sand without binder as molding sand. In single-piece production, the economics are obvious since the solid form of the foam can be made by machining. Into