Patent ID: 9573334
Date: 2017-02-21
CPC Classifications: B22F,B28B,B30B,F27B,F27D,H01L

Claim:
1. A hot isostatic pressing device comprising: a gas-impermeable casing that is arranged so as to surround a workpiece; a heating unit that is provided inside the casing so as to form a hot zone around the workpiece, thereby making it possible to perform hot isostatic pressing processing to the workpiece by using a pressure-medium gas in the hot zone; a high-pressure container that surrounds a space where the heating unit and the casing are housed and that includes a base that closes the space from below; and a cooling unit that cools the hot zone by guiding, into the hot zone, the pressure-medium gas having been cooled while flowing from above to below outside the casing, wherein the cooling unit comprises: a gas introduction unit that guides the pressure-medium gas cooled outside the casing, from a lower part of the high-pressure container to an upper part of the hot zone into the hot zone, in such a manner that the pressure-medium gas should not meet the pressure-medium gas inside the hot zone; and a cooling promotion unit that cools the pressure-medium gas having been cooled outside the casing by allowing the pressure-medium gas to exchange heat with the base.