Property analysis of gypsum bleed pump impeller fabricated by a modified sand-casting method
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A gypsum bleed pump impeller, which had been produced by a precision-casting process, was made using a modified sandcastingprocess by applying an inorganic binder system. The glass phase generated from the inorganic binder allowed the sandmold and core to withstand the casting temperature. The casting product, having a sound surface roughness and a stabledimensional property, was made with a highly fluid molten metal. The sand mold with the inorganic binder was completelycollapsed after casting, and the core was also eluted 100% in an aqueous sodium hydroxide solution. In addition, the cast pumpimpeller had abrasion and corrosion resistance similar to the OEM (original equipment manufacturer) product made usingconventional precision-casting. In addition, the magnetic particle test and the radiographic test were conducted to check theexternal and internal defects of the impeller
Abstract
A gypsum bleed pump impeller, which had been produced by a precision-casting process, was made using a modified sandcastingprocess by applying an inorganic binder system. The glass phase generated from the inorganic binder allowed the sandmold and core to withstand the casting temperature. The casting product, having a sound surface roughness and a stabledimensional property, was made with a highly fluid molten metal. The sand mold with the inorganic binder was completelycollapsed after casting, and the core was also eluted 100% in an aqueous sodium hydroxide solution. In addition, the cast pumpimpeller had abrasion and corrosion resistance similar to the OEM (original equipment manufacturer) product made usingconventional precision-casting. In addition, the magnetic particle test and the radiographic test were conducted to check theexternal and internal defects of the impeller
참고문헌 (20)
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