Hot isostatic pressing device

摘要

Provided is a hot isostatic pressing (HIP) device (1) that can efficiently cool a hot zone during HIP processing while restraining temperatures in the lower part of a high-pressure container. This HIP device (1) is provided with the following: gas-impermeable casings (3, 4) that surround an object to be processed (W); a heating unit (7) that is disposed inside these casings and forms a hot zone around the object to be processed (W); a high-pressure container (2); and a cooling unit that guides a pressure-medium gas cooled on the outside of the casings into the hot zone to cool the hot zone. The cooling unit comprises the following: a gas introduction unit that introduces the pressure-medium gas that has been cooled on the outside of the casings (3, 4) into the hot zone; and a cooling promotion unit (37) that cools the pressure medium gas by causing the pressure-medium gas that has been cooled on the outside of the casings to exchange heat with a base (11) of the high-pressure container (2).

主权项

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.