Abstract: An induction crucible furnace includes a housing having a bottom wall and side walls which define a furnace cage. A prefabricated refractory crucible made of a mixture of a dry ramming material, a sintering agent and a cold-curing binder is disposed within the furnace cage with a clearance which is filled with a non-sintering granular material sealed within the furnace with a patching compound. A plurality of induction coils are disposed within the furnace cage and are separated from a layer of the non-sintering granular material by a heat-protective layer. In a method of manufacturing of the induction crucible furnace a refractory crucible is placed onto a bed of a non-sintering granular material disposed on the bottom wall of the furnace housing.

Abstract: A method and an arrangement for lining articles are disclosed which are particularly well-suited for use in the lining of melting ovens. The arrangement includes a mold member which has a surface with the configuration corresponding to the face of the inner wall of the oven chamber and comprises a plurality of circumferentially adjacent sections detachably connected to one another. A plurality of circumferentially adjacent flexible plate-like elements of a refractory material are arranged at the surface of the mold member and connected to one another to thereby form a circumferentially complete refractory member. The plate-like elements are connected to one another by refractory adhesive substance. They have adjacent end portions overlapping one another, which portions are connected to one another by the above refractory adhesive substance, and are fixed to one another by adhesive strips.

Abstract: A method and arrangement for lining articles are disclosed which are particularly well-suited for use in lining melting ovens. The arrangement includes a mold member which is composed of several relatively movable sections so as to permit the dimensions thereof to be changed. For the lining of an oven chamber, the mold member has an external surface the configuration of which corresponds to the inner wall of the oven chamber. This surface is coated with a refractory-containing composition, which is releasably secured over the surface. In coating the mold member the composition is made up in a flowable or plastic state, applied over the external surface of the mold member in this state, and then hardened, for instance, by heating. The composition is of such a nature that the temperatures required for hardening the same are sufficiently low to avoid undesirable effects on the mold member.