LINING STRUCTURE IN RH VACUUM DEGASSING FURNACE

摘要

PROBLEM TO BE SOLVED: To improve durability in the lining structure in an RH vacuum degassing furnace with magnesia-carbonaceous unburned bricks. SOLUTION: In the lining structure of the RH vacuum degassing furnace with the magnesia-carbonaceous unburned bricks, the conventional problem such as the durability is to be solved. The method is featured that the lining structure in the RH vacuum degassing furnace is composed of the magnesia- carbonaceous unburned bricks at the side walls and the castable refractories at the bed and the circulating tubes which contain non-carbonaceous material or the ratio of carbonaceous material to refractory aggregate is made to <1 wt.%.