Metallurgical apparatus – Means treating solid metal – Fluid tight heat transferring box shield or hood
Patent
1998-04-28
2000-05-16
Kastler, Scott
Metallurgical apparatus
Means treating solid metal
Fluid tight heat transferring box shield or hood
266262, C21D 100
Patent
active
06063331&
ABSTRACT:
A bell type annealing furnace structure that includes a base which has a base plate member and an annular channel therearound. A plurality of circumferentially spaced enclosure members are provided, each having a coil support section with support legs depending therefrom supporting the enclosure member on the base plate member and defining a space between the base plate member and the coil support section. The enclosure members are configured to form a central annular opening, and joints interconnect each of the enclosure members. Each joint includes a web member extending between the adjacent enclosure members and is curved toward the base plate member. Reinforcing segments are disposed in the spaces between and engaging both the base plate member and the coil support section. A cap member is disposed in the annular opening defined by the enclosure members, and includes an upper section and an annular leg depending therefrom engaging the base plate member. The cap member is configured to prevent bowing of the upper section away from the base plate member upon heating. An inflatable seal is mounted in said channel surrounding the base. A bell inner cover has a radially extending plate around the lower portion thereof, and when the bell inner cover is disposed over the base the radially extending plate in contact with the annular inflatable seal, and the inflatable seal is inflated. The bell inner cover has an annular channel thereon. A furnace member is placed over the bell inner cover, with the furnace member having a seal extending circumferentially therearound and sealing in the annular channel in the bell inner cover, with the seal on the furnace member having, ceramic fibers enclosed in wire mesh.
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Hogg Willaim N.
Kastler Scott
Rad-Con Incorporated
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