Metallurgical apparatus – Means treating solid metal – By contact with gas
Patent
1983-04-12
1984-09-18
Rutledge, L. Dewayne
Metallurgical apparatus
Means treating solid metal
By contact with gas
425405H, 266250, B22F 300, C21C 900
Patent
active
044719493
ABSTRACT:
A HIP system of the type which includes a high pressure vessel with top and bottom plugs for closing top and bottom open ends thereof or a high pressure vessel closed at one end and having a plug for closing the other open end thereof, and a high pressure and temperature processing chamber defined in the pressure vessel and having a heat insulating mantle and a heater disposed around the inner periphery thereof for subjecting a workpiece supported on the plug to sintering or other treatment in a high pressure and temperature gas atmosphere, the HIP system including: a removable shield casing hermetically engageable with the workpiece supporting plug and adapted to be loaded into and unloaded from the high pressure vessel along with the workpiece, holding the processing chamber in a sealed state; and a valve member provided in the shield casing for selectively establishing and blocking communication of the processing chamber with an exterior atmosphere such that the processing chamber is selectively placed in a vacuumized state, filled with a high pressure gas and evacuated to an atmospheric pressure.
REFERENCES:
patent: 3548062 (1970-12-01), Smith, Jr.
patent: 3752456 (1973-08-01), Larker
patent: 4022446 (1977-05-01), Smith et al.
patent: 4217087 (1980-08-01), Bowles
patent: 4238667 (1980-12-01), Conaway
patent: 4279581 (1981-07-01), Betz
Brody Christopher W.
Kabushiki Kaisha Kobe Seiko Sho
Rutledge L. Dewayne
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