Phenolic resin bound, magnesia-based insulant located between water-cooled induction coils and molten metal feeder

摘要

The invention relates to an inductor system adjoining a fireproof ceramic spout and aims to provide effective heat insulation between the inductor (5) and the spout (4). According to the invention, a heat insulating layer (6) made of a resin-bonded fireproof material is placed between the inductor (5) and spout (4). The material is characterized in that, at operating temperature, the resin binder of the insulating layer (6) crazes in an intermediate area (11).