Heat treatment boat

Details Heat treatment boat Heat treatment boat

1994-03-08

1995-10-17

Breneman, R. Bruce

Coating apparatus

Gas or vapor deposition

With treating means

118728, C23C 1600

Patent

active

054586887

ABSTRACT:
A heat treatment boat for mounting a number of disc-shaped objects to be treated at a vertical interval for heat treatment thereof in a vertical heat treatment furnace comprises arcuate or ring-shaped support members provided on support rods at a vertical interval for supporting the objects to be treated in surface contact with the undersides of peripheral parts of the objects to be treated. The heat treatment boat is disposed on a ring-shaped intermediate member of high radiant heat absorption disposed on a heat insulating cylinder. The heat treatment boat comprises support rods which are planted on an annular support member circumferentially in accordance with a contour of the objects to be treated and whose upper ends are secured to an annular fixation member. The heat treatment boat of such constitution can reduce occurrences of slips in the disc-shaped objects when heat treated.

REFERENCES:
patent: 3226254 (1965-12-01), Reuschel
patent: 5148714 (1992-09-01), McDiarmid
patent: 5162047 (1992-11-01), Wada
patent: 5169453 (1992-12-01), Takagi
patent: 5228501 (1993-07-01), Tepman
patent: 5261776 (1993-11-01), Burck
patent: 5310339 (1994-05-01), Ushikawa
patent: 5316472 (1994-05-01), Niino
patent: 5334257 (1994-08-01), Nishi

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