Title:
QUENCHING AUTOCLAVE FURNACE
Document Type and Number:
Japanese Patent JPS614526
Kind Code:
A
Abstract:
An apparatus for gas pressure bonding, hot isostatic pressing or the like in which a workpiece may be treated at elevated temperatures and pressures comprises an elongate cylindrical pressure vessel (10) for enclosing a furnace. The furnace comprises an insulated bottom (14) and an insulated hood (13) with openings near the top and bottom. The insulating hood (13) encloses a workspace with the bottom (14). Means for heating (16) the workspace and means for cooling the pressure vessel (10) are provided. The improvements according to this disclosure are means (18) for establishing a first circulating flow of pressurized fluid down along the interior of the pressure vessel wall, and means (17) for establishing a second circulating flow of pressurized fluid down through the workspace. Heat exchange between the two circulating flows of pressurized fluid after the first flow has been cooled by flowing down along the interior wall of the pressure vessel (10) and after the second flow has been heated by flowing down over the workpiece in the workspace provides for effective temperature control in the workspace. The flow rate of at least one circulating flow of pressurized fluid is positively established by pumps (18) or fans.
Inventors:
CHIYAARUZU DABURIYU SUMISU JIY
Application Number:
JP24788884A
Publication Date:
January 10, 1986
Filing Date:
November 22, 1984
Export Citation:
Assignee:
AUTOCLAVE ENG INC
International Classes:
B01J3/04; A61L2/07; B22F3/15; C21D1/767; F27B17/00; (IPC1-7): B01J3/04
Attorney, Agent or Firm:
Kitamura Osamu
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