METHOD OF PREPARING CERAMIC CORE FOR HIGH TEMPERATURE PART CASTING

An object of the present invention is to provide a method for manufacturing a high-temperature part ceramic core having excellent dissolution properties and the ceramic core manufactured using the same. The method for manufacturing a ceramic core for casting in one aspect of the present invention in...

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Bibliographische Detailangaben
Hauptverfasser:	PARK HYE YOUNG, JUNG YEON GIL, KIM TAE YEOUN, KIM EUN HEE, PARK JONG BUM
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	ARTIFICIAL STONE CASTING CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE FOUNDRY MOULDING LIME, MAGNESIA METALLURGY PERFORMING OPERATIONS POWDER METALLURGY REFRACTORIES SLAG TRANSPORTING TREATMENT OF NATURAL STONE
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Beschreibung
Zusammenfassung:	An object of the present invention is to provide a method for manufacturing a high-temperature part ceramic core having excellent dissolution properties and the ceramic core manufactured using the same. The method for manufacturing a ceramic core for casting in one aspect of the present invention includes the following steps of: coating ceramic powder with an inorganic binder; mixing the powder coated with the inorganic binder and an organic binder to form a ceramic molded body; and heat-treating the ceramic molded body to vitrify the coated inorganic binder. In addition, a method for manufacturing a ceramic core for casting in another aspect of the present invention includes the following steps of: mixing ceramic powder and an organic binder to form a ceramic molded body; coating the surface of particles in the molded body with an inorganic binder; and heat-treating the molded body coated with the inorganic binder to vitrify the coated inorganic binder. 본 발명의 일 측면인 주조용 세라믹 코어의 제조방법은 세라믹계 분말을 무기 바인더로 코팅하는 단계, 상기 무기 바인더로 코팅된 분말과 유기 바인더를 혼합하여, 세라믹 성형체를 형성하는 단계 및 상기 세라믹 성형체를 열처리하여, 상기 코팅된 무기 바인더를 유리화하는 단계를 포함한다. 또한, 본 발명의 다른 측면인 주조용 세라믹 코어의 제조방법은 세라믹계 분말과 유기 바인더를 혼합하여, 세라믹 성형체를 형성하는 단계, 상기 성형체 내의 입자 표면을 무기 바인더로 코팅하는 단계 및 상기 무기 바인더로 코팅된 성형체를 열처리하여, 상기 코팅된 무기 바인더를 유리화하는 단계를 포함한다.