Receptacle for support of a melt containing crucible

Details Receptacle for support of a melt containing crucible Receptacle for support of a melt containing crucible

1982-02-22

1983-09-13

Thomas, Alexander S.

Heating

Work chamber having heating means

Crucible or pot heating furnace

2483112, 266275, 428 35, 428 33, 432264, F27B 1408, F27B 1414

Patent

active

044039557

ABSTRACT:
A segmented cup-shaped receptacle is provided for completely supporting a melt containing softened crucible, the receptacle having plurality of similar elevational segments. The elevational segments are normally adjoining to provide complete support for the crucible, but are separable to relieve thermal stresses in the crucible and receptacle during cooling to reduce breakage, the crucible and receptacle having different coefficients of expansion. The elevational segments have inwardly formed lower portions adapted to bias the elevational segments inwardly to adjoining positions by gravity for support of sides of the crucible. The receptacle further comprises a central annular base segment adjoining the lower ends of the elevational segments for supporting a central portion of the melt containing crucible. A unitary base plate supports the elevational segments and the central annular base segment, having an outer flange tapered inwardly and downwardly for biasing the elevational segments to positions with their sides adjoining and having their lower ends adjoining the central annular base segment.

REFERENCES:
patent: 222175 (1879-12-01), Bower
patent: 2406334 (1946-08-01), Keller et al.
patent: 3163393 (1964-12-01), Strong

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