PHENOL RESIN BINDER COMPOSITION, BINDER COATED REFRACTORY, METHOD FOR MANUFACTURING THE SAME, MOLD, AND METHOD FOR MANUFACTURING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a phenol resin binder composition capable of increasing hardening speed.;SOLUTION: A binder composition forms a binder layer on a surface of a refractory aggregate in a binder coated refractory formed by coating the binder layer on the surface of the refractory aggregate. A principal component of a binder is phenol resin, and trihydric phenol is contained by 1 to 60 mass% in the phenol resin, which is the principal component of the binder. By the trihydric phenol being contained in the phenol resin, time required for the phenol resin to turn into gel is shortened, it is possible to further increase hardening speed.;COPYRIGHT: (C)2015,JPO&INPIT