Graphite hot zone assembly

Details Graphite hot zone assembly Graphite hot zone assembly

1988-10-05

1989-08-08

Envall, Jr., Roy N.

Industrial electric heating furnaces

Resistance furnace device

With internal atmosphere control

H05B 308

Patent

active

048560227

ABSTRACT:
The present arrangement includes a plurality of graphite support assemblies which serve to hold graphite heating elements of a graphite hot zone to be used with a vacuum furnace. The support assembly used with the power terminal end of the heating element chain is designed to be clamped onto a standard molybdenum electrically energizable rod, while each of the support assemblies is designed to employ graphite bolts with carefully selected laminated graphite washers so that the bolts do not loosen in response to cycles of hot and cold temperatures.

REFERENCES:
patent: 2798108 (1957-07-01), Poland
patent: 3185460 (1965-05-01), Mescher et al.
patent: 4272639 (1981-06-01), Beck
patent: 4608698 (1986-08-01), Moller et al.

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