JPS54118372A - Production of cold drawn steel pipe from electrically seamed steel pipe - Google Patents
Production of cold drawn steel pipe from electrically seamed steel pipeInfo
- Publication number
- JPS54118372A JPS54118372A JP2687378A JP2687378A JPS54118372A JP S54118372 A JPS54118372 A JP S54118372A JP 2687378 A JP2687378 A JP 2687378A JP 2687378 A JP2687378 A JP 2687378A JP S54118372 A JPS54118372 A JP S54118372A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- steel pipe
- seamed
- heat treatment
- welded
- 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: Electrically seamed steel pipe is, after welding work, tempered or annealed at only weldedly seamed portion, and cold drawn without subjecting to the total pipe heat treatment, thereby saving heat treat energy and providing good-quality, inexpensive cold drawn steel pipe.
CONSTITUTION: From the sixth roll 22, an unfinished roll P0 unwelded at joining edge is transmitted out and welded at the joining edge by the high frequency welder 23 to provide a welded pipe P1. The electric seam steel pipe manufacturing machine 23 is further provided with a heat treatment means 24 by electric induction heater, electric resistance heater, flame heater. In the heat treatment means 24, the welded pipe P1 is heated only at the seamed portion at a temperature of 740 to 1000°C to provide a weld-seamed heat-treated pipe P2, which is cooled at a specified rate to be tempered or annealed. The pipe P2 is cut to a given lengh and treated by the cold draw equipment 3 to provide a finished, drawn pipe product.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2687378A JPS54118372A (en) | 1978-03-07 | 1978-03-07 | Production of cold drawn steel pipe from electrically seamed steel pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2687378A JPS54118372A (en) | 1978-03-07 | 1978-03-07 | Production of cold drawn steel pipe from electrically seamed steel pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS54118372A true JPS54118372A (en) | 1979-09-13 |
Family
ID=12205403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2687378A Pending JPS54118372A (en) | 1978-03-07 | 1978-03-07 | Production of cold drawn steel pipe from electrically seamed steel pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS54118372A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03138016A (en) * | 1989-10-23 | 1991-06-12 | Km Kabelmetall Ag | Method for continuous drawing of metal pipe |
| WO2016139931A1 (en) * | 2015-03-03 | 2016-09-09 | Ｊｆｅスチール株式会社 | Electric resistance welded steel pipe having recognizable seam, and method for manufacturing same |
-
1978
- 1978-03-07 JP JP2687378A patent/JPS54118372A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03138016A (en) * | 1989-10-23 | 1991-06-12 | Km Kabelmetall Ag | Method for continuous drawing of metal pipe |
| WO2016139931A1 (en) * | 2015-03-03 | 2016-09-09 | Ｊｆｅスチール株式会社 | Electric resistance welded steel pipe having recognizable seam, and method for manufacturing same |
| JPWO2016139931A1 (en) * | 2015-03-03 | 2017-04-27 | Ｊｆｅスチール株式会社 | ERW steel pipe with seam portion distinguishable and manufacturing method thereof |
| CN107405659A (en) * | 2015-03-03 | 2017-11-28 | 杰富意钢铁株式会社 | The electric welded steel pipe and its manufacture method that welding seam part can identify |
| US10369655B2 (en) | 2015-03-03 | 2019-08-06 | Jfe Steel Corporation | Electric resistance welded steel pipe having identifiable seam portion and method for manufacturing the same |
| US11045896B2 (en) | 2015-03-03 | 2021-06-29 | Jfe Steel Corporation | Electric resistance welded steel pipe having identifiable seam portion and method for manufacturing the same |
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