JPS55141314A - Manufacture of laminated metallic pipe - Google Patents
Manufacture of laminated metallic pipeInfo
- Publication number
- JPS55141314A JPS55141314A JP4946379A JP4946379A JPS55141314A JP S55141314 A JPS55141314 A JP S55141314A JP 4946379 A JP4946379 A JP 4946379A JP 4946379 A JP4946379 A JP 4946379A JP S55141314 A JPS55141314 A JP S55141314A
- Authority
- JP
- Japan
- Prior art keywords
- bloom
- pipe
- tubular body
- reduction
- cut
- 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
Abstract
PURPOSE: To improve the production efficiency and the inspection yield of product, by inserting the material bloom to be inner layer into the tubular body to be the outer layer, by applying the cold stretch-reduction, and then, by blooming to obtain the pipe blank.
CONSTITUTION: The material bloom 2 is inserted into the tubular body 1, and the reducing work is applied to this assembly; after that, the assembly is treated by the cold stretch-reduction to form the laminated bloom 3. This bloom 3 is cut into the specified length, and is heated to specified temperatures, and is hot rolled by the steel billet blooming mill to form the round bar type laminated billet. Then, this is cut into the specified length and is sent into the pipe manufacturing process, where the extrusion method, etc., is applied to form the pipe. According to this method, because the parent metal and the clad metal are perfectly tight contacting at the stage of the bloom 3, the perfect metallurgical bonding from top to bottom can be obtained by the hot rolling pass.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4946379A JPS55141314A (en) | 1979-04-21 | 1979-04-21 | Manufacture of laminated metallic pipe |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4946379A JPS55141314A (en) | 1979-04-21 | 1979-04-21 | Manufacture of laminated metallic pipe |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55141314A true JPS55141314A (en) | 1980-11-05 |
Family
ID=12831831
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4946379A Pending JPS55141314A (en) | 1979-04-21 | 1979-04-21 | Manufacture of laminated metallic pipe |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55141314A (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5075961A (en) * | 1973-04-20 | 1975-06-21 | ||
JPS5178773A (en) * | 1974-12-30 | 1976-07-08 | Kobe Steel Ltd | ARUMINIUMUFUKUGOBIRETSUTONO SEISAKUHOHO |
-
1979
- 1979-04-21 JP JP4946379A patent/JPS55141314A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5075961A (en) * | 1973-04-20 | 1975-06-21 | ||
JPS5178773A (en) * | 1974-12-30 | 1976-07-08 | Kobe Steel Ltd | ARUMINIUMUFUKUGOBIRETSUTONO SEISAKUHOHO |
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