JPS5744417A - Hot extruding method for pipe made of activated metal - Google Patents
Hot extruding method for pipe made of activated metalInfo
- Publication number
- JPS5744417A JPS5744417A JP10629780A JP10629780A JPS5744417A JP S5744417 A JPS5744417 A JP S5744417A JP 10629780 A JP10629780 A JP 10629780A JP 10629780 A JP10629780 A JP 10629780A JP S5744417 A JPS5744417 A JP S5744417A
- Authority
- JP
- Japan
- Prior art keywords
- billet
- sleeve
- lubricating medium
- activated metal
- mandrel
- 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
- Extrusion Of Metal (AREA)
Abstract
PURPOSE: To manufacture a pipe made of an activated metal with an excellent inner surface condition without causing a seizure trouble, by practicing a hot extrusion process under a condition wherein a lubricating medium packed inside a billet and a mandrel are isolated from each other through a sleeve.
CONSTITUTION: A lubricating medium 2 is packed in a gap formed between the inner surface of a tubular billet 1 made of an activated metal and the outer surface of a sleeve 3 inserted into the billet 1. A tip of the sleeve 3 is extended out of the end plane of the billet 1 toward the extruding direction;a flange 3A is formed in another end of the sleeve 3 and is fitted into a cavity 1A formed in the end plane of the billet 1; hereby, the leak of the lubricating medium 2 toward the opposite direction to the extrusion is intercepted. This assembly A of the billet and sleeve is inserted into a container 5, a mandrel 11 is fully inserted into the assembly A, and a hot extrusion is practiced. Hereupon, the extrusion is carried out under a condition wherein the sleeve 3 is isolating the mandrel 11 from the lubricating medium 2 packed in the inner surface of the billet 1, so that the lubricating medium 2 does not cause a change in its viscosity during the extrusion process, and the generation of scratch flaws is diminished.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10629780A JPS5915726B2 (en) | 1980-07-31 | 1980-07-31 | Hot extrusion method for active metal tubes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10629780A JPS5915726B2 (en) | 1980-07-31 | 1980-07-31 | Hot extrusion method for active metal tubes |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5744417A true JPS5744417A (en) | 1982-03-12 |
JPS5915726B2 JPS5915726B2 (en) | 1984-04-11 |
Family
ID=14430093
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10629780A Expired JPS5915726B2 (en) | 1980-07-31 | 1980-07-31 | Hot extrusion method for active metal tubes |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5915726B2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60160916U (en) * | 1984-03-31 | 1985-10-25 | 住友軽金属工業株式会社 | Mandrel for metal tube extrusion |
CN1317087C (en) * | 2002-08-19 | 2007-05-23 | 李明锁 | Technology for producing hollow steel by hot squeeze method |
CN109789458A (en) * | 2016-09-29 | 2019-05-21 | 日立金属株式会社 | The hot extrusion forming method and Ni base superalloy of Ni base superalloy squeeze out the manufacturing method of material |
-
1980
- 1980-07-31 JP JP10629780A patent/JPS5915726B2/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60160916U (en) * | 1984-03-31 | 1985-10-25 | 住友軽金属工業株式会社 | Mandrel for metal tube extrusion |
CN1317087C (en) * | 2002-08-19 | 2007-05-23 | 李明锁 | Technology for producing hollow steel by hot squeeze method |
CN109789458A (en) * | 2016-09-29 | 2019-05-21 | 日立金属株式会社 | The hot extrusion forming method and Ni base superalloy of Ni base superalloy squeeze out the manufacturing method of material |
Also Published As
Publication number | Publication date |
---|---|
JPS5915726B2 (en) | 1984-04-11 |
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