Crucible unit for induction furnace and crucible type induction furnace

摘要

PROBLEM TO BE SOLVED: To reduce a workload and to easily construct a crucible-type induction furnace provided with a lining layer having a three-layer structure having a sintered layer, a solidified layer and a powder layer (loose layer). And An induction furnace crucible unit (1) includes a container-shaped fixed refractory (2), a former (3) arranged at a predetermined interval between an inner peripheral surface and an inner bottom surface of the fixed refractory (2), and a fixed refractory (2). Of the irregular refractory 4 filled between the former and the former 3, and one of the irregular refractory 4 so that one end penetrates the bottom portion 30 of the former 3 and the other end is exposed to the outer bottom surface of the regular refractory 2. And a first antenna 5 embedded therein. [Selection diagram] Figure 1