Hot isostatic pressing method and apparatus

Details Hot isostatic pressing method and apparatus Hot isostatic pressing method and apparatus

2005-01-04

2005-01-04

Tolan, Ed (Department: 3725)

Metal deforming

By application of fluent medium, or energy field

By kinetic energy of fluid or field

C072S364000, C072S453060, C100S269140, C100S305000

Reexamination Certificate

active

06837086

ABSTRACT:
While a workpiece is heated and pressed by one of a pair of high-pressure vessels, a workpiece being pressed by the other high-pressure vessel is placed in a heated state. In the reducing process after termination of heating and pressing treatment of the workpiece by one high-pressure vessel, both the high-pressure vessels are placed in communication, and the pressure medium gas released from one high-pressure vessel is poured into the other high-pressure vessel. After pressures of both the high-pressure vessels have assumed a nearly balanced state, the pressure medium gas is sucked out of one high-pressure vessel by a compressor and pressed, and is poured into the other high-pressure vessel, and the workpiece is heated and pressed by the other high-pressure vessel. By the method as described, considerable shortening of cycle time of HIP treatment is achieved, and the HIP treatment can be carried out with high efficiency.

REFERENCES:
patent: 4942750 (1990-07-01), Conaway
patent: 5979306 (1999-11-01), Fujikawa et al.
patent: 6159400 (2000-12-01), Laquer
patent: 6533997 (2003-03-01), Bergman
patent: 7-23484 (1995-03-01), None

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