JPS55141312A - Manufacture of laminated metallic pipe - Google Patents
Manufacture of laminated metallic pipeInfo
- Publication number
- JPS55141312A JPS55141312A JP4946179A JP4946179A JPS55141312A JP S55141312 A JPS55141312 A JP S55141312A JP 4946179 A JP4946179 A JP 4946179A JP 4946179 A JP4946179 A JP 4946179A JP S55141312 A JPS55141312 A JP S55141312A
- Authority
- JP
- Japan
- Prior art keywords
- tubular body
- billet
- metallic pipe
- reduction
- applying
- 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.)
- Pending
Links
Landscapes
- Metal Extraction Processes (AREA)
Abstract
PURPOSE: To improve the production efficiency and the inspection yield of the product, by inserting the tubular body to be the inner layer into the tubular body to be the outer layer, by applying the cold stretch-reduction, and then, by heating and extruding according to the press system.
CONSTITUTION: The small diameter tubular body 2 or the rod is inserted into the large diameter tubular body 1, and after applying the reducing work, the assembly is treated by the cold stretch-reduction to form the hollow or solid laminated billet 3. This billet 3 is cut into the specified length, and is heated to the specified temperature. In case of the solid laminated billet, the piercing work is applied, and then, the extrusion, etc., according to the press system is applied to obtain the desired laminated metallic pipe. According to this method, since the parent metal is perfectly tight contacting with the clad metal at the stage of the billet 3, the perfect metallurgical bonding can be obtained from top and bottom after undergoing the hot press.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4946179A JPS55141312A (en) | 1979-04-21 | 1979-04-21 | Manufacture of laminated metallic pipe |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4946179A JPS55141312A (en) | 1979-04-21 | 1979-04-21 | Manufacture of laminated metallic pipe |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55141312A true JPS55141312A (en) | 1980-11-05 |
Family
ID=12831777
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4946179A Pending JPS55141312A (en) | 1979-04-21 | 1979-04-21 | Manufacture of laminated metallic pipe |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55141312A (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS501957A (en) * | 1973-05-11 | 1975-01-10 | ||
JPS5178773A (en) * | 1974-12-30 | 1976-07-08 | Kobe Steel Ltd | ARUMINIUMUFUKUGOBIRETSUTONO SEISAKUHOHO |
-
1979
- 1979-04-21 JP JP4946179A patent/JPS55141312A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS501957A (en) * | 1973-05-11 | 1975-01-10 | ||
JPS5178773A (en) * | 1974-12-30 | 1976-07-08 | Kobe Steel Ltd | ARUMINIUMUFUKUGOBIRETSUTONO SEISAKUHOHO |
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