CORE MATERIAL MIXTURE FOR CASTING, METHOD FOR MANUFACTURING CORE FOR CASTING AND CORE FOR CASTING USING THE SAME

摘要

The present invention features a core material mixture for casting that prevents strength from being decreased and improves de-coring properties. The core material mixture preferably includes molding sand, and a core binder consisting of sodium silicate-based binder and an oxide film inhibitor. The present invention also provides a method of fabricating a core for a casting and a core for the casting fabricated by the same method.