| 摘要 |
PROBLEM TO BE SOLVED: To provide an oxidation preventing coating material for graphite-containing refractory which can prevent oxidizing and weakening of the surface of brick when being constructed on the inside of a metal melting vessel and heated to raise the temperature before a molten metal is received in use of graphite-containing refractory for lining of the metal melting vessel in iron works. SOLUTION: The oxidation preventing coating material prepared by adding 3-15 wt.% boron carbide, 0.5-8 wt.% aluminum salt, 1-10 wt.% clay and the balance frit having≤1 mm particle diameter and 600-1,000°C melting point and further in external multiplication, 1-10 wt.% lithium salt, 0.1-1 wt.% thickener and 0.1-1 wt.% anti-foaming agent is applied on the surface of the graphite-containing refractory before heat-treated. COPYRIGHT: (C)2008,JPO&INPIT
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