Refractory hearth furnace floor arrangement for retaining an all

Details Refractory hearth furnace floor arrangement for retaining an all Refractory hearth furnace floor arrangement for retaining an all

1990-09-24

1992-04-14

Bennett, Henry A.

Heating

Work chamber having heating means

Having means by which work is progressed or moved mechanically

432239, 266252, 266255, F27D 300, F27B 900, C21D 106

Patent

active

051043149

ABSTRACT:
A refractory hearth for use in an industrial heat treat furnace is disclosed whereby the hearth contains no alloy parts with the exception of the pusher assembly and the roller chain attached to it. L-shaped ceramic, refractory or silicon carbide tile are placed in position to support material being heat treated, while at the same time preventing the roller chain from rising up out of place. The outside edges of said L-shaped tile shall act as guides to move stock trays in a straight path. Refractory material used to hold hearth in place will also support radiant tubes used to supply heat.

REFERENCES:
patent: 2891659 (1959-06-01), Westeren
patent: 3995990 (1976-12-01), Dwyer et al.
patent: 4375354 (1983-03-01), Henriksson
patent: 4401297 (1983-08-01), Doi et al.
patent: 4421481 (1983-12-01), Holz et al.
patent: 4496312 (1985-01-01), Yamada et al.
patent: 4589845 (1986-05-01), Naohara et al.
patent: 4601660 (1986-07-01), Schuster
patent: 4802844 (1989-02-01), Kuhn et al.

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