| 摘要 |
PROBLEM TO BE SOLVED: To obtain the subject brick improved in oxidation resistance and durability by using a specific modified phenolic resin as a binder. SOLUTION: This magnesia-carbon brick is obtained by using 0.5-10wt.%, based on the whole feedstock, of a boron-modified phenolic resin 10-50wt.% in boron content as a binder through kneading, molding and drying process. The boron-modified phenolic resin can be used singly as a binder in the form of either liquid or powder; however, being pref. used in combination with a conventional phenolic resin. |
