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    • 8. 发明公开
    • 탄수화물을 포함하는 주형 재료 혼합물
    • 含有碳水化合物的模塑材料混合物
    • KR1020090076979A
    • 2009-07-13
    • KR1020097010261
    • 2007-10-19
    • 아에스카 케미컬스 게엠베하
    • 뮬러,젠스코흐,디터프론,마커스퀘르시젠,요르그슈레켄버그,스테판
    • B22C1/18B22C1/26
    • B22C1/26B22C1/188
    • The invention relates to a moulding material mixture for producing casting moulds for machining metal, to a method for producing casting moulds, to casting moulds obtained according to said method and to the use thereof. A fire-resistant moulding base material and a binding agent based on water glass are used in the production of casting moulds. A fraction of the particulate metal oxide is added to the binding agent, said metal oxide being selected from the group comprising silicon dioxide, aluminium oxide, titanium oxide and zinc oxide. Synthetic amorphous silicon dioxide is preferably used. Said moulding material mixture contains a carbohydrate as an additional component. The mechanical resistance of casting moulds and the quality of the surface of the casting piece can be improved by adding carbohydrates.
    • 本发明涉及一种用于制造用于机加工金属的铸造模具的成型材料混合物,用于生产铸模的方法,根据所述方法获得的铸造模具及其用途。 在铸造模具的生产中使用耐火成型基材和基于水玻璃的粘合剂。 将一部分颗粒状金属氧化物加入到粘合剂中,所述金属氧化物选自二氧化硅,氧化铝,氧化钛和氧化锌。 优选使用合成的无定形二氧化硅。 所述模制材料混合物含有作为附加组分的碳水化合物。 通过添加碳水化合物可以提高铸模的机械阻力和铸件表面的质量。