JPS5690901A - Forming method for hot hydrostatic press - Google Patents
Forming method for hot hydrostatic pressInfo
- Publication number
- JPS5690901A JPS5690901A JP16993379A JP16993379A JPS5690901A JP S5690901 A JPS5690901 A JP S5690901A JP 16993379 A JP16993379 A JP 16993379A JP 16993379 A JP16993379 A JP 16993379A JP S5690901 A JPS5690901 A JP S5690901A
- Authority
- JP
- Japan
- Prior art keywords
- capsule
- tightly closed
- preheating
- venting
- preheated
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Powder Metallurgy (AREA)
Abstract
PURPOSE: To make process and device simple by omitting venting process in mounting the body to be treated into a capsule, preheating this and hot-hydrostatically pressing this.
CONSTITUTION: A body to be treated is loaded into a capsule in the atmosphere or in a gaseous atmosphere of nitrogen, and is preheated to predetermined temperatures, for example, about 1,000W1,500°C without venting and tight closure. Upon ending of the preheating, the capsule is tightly closed immediately without venting the inside air and is subjected to hot hydrostatic pressing. Since the capsule is tightly closed immediately after preheating, about 70W75% of the gas in the inside releases to the outside of the capsule owing to thermal expansion when the capsule is preheated to, for example, about 1,000°C, and if it is tightly closed in that state, the amount of the gas remained therein decreases to about 25W30% that when filled at ordinary temp. This is approximately similar to the case when the capsule is tightly closed under evacuated pressure. Particularly when it is filled in air, the adverse influence owing to oxygen is minimized.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16993379A JPS5690901A (en) | 1979-12-25 | 1979-12-25 | Forming method for hot hydrostatic press |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16993379A JPS5690901A (en) | 1979-12-25 | 1979-12-25 | Forming method for hot hydrostatic press |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5690901A true JPS5690901A (en) | 1981-07-23 |
JPS6231041B2 JPS6231041B2 (en) | 1987-07-06 |
Family
ID=15895609
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16993379A Granted JPS5690901A (en) | 1979-12-25 | 1979-12-25 | Forming method for hot hydrostatic press |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5690901A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62290801A (en) * | 1986-06-09 | 1987-12-17 | Kobe Steel Ltd | Isotropic pressurization method |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09301385A (en) * | 1996-05-13 | 1997-11-25 | Takeshi Kameyama | Bag-shaped packaging container |
-
1979
- 1979-12-25 JP JP16993379A patent/JPS5690901A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62290801A (en) * | 1986-06-09 | 1987-12-17 | Kobe Steel Ltd | Isotropic pressurization method |
Also Published As
Publication number | Publication date |
---|---|
JPS6231041B2 (en) | 1987-07-06 |
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