JPS5570413A - Manufacture of large diameter welded pipe - Google Patents
Manufacture of large diameter welded pipeInfo
- Publication number
- JPS5570413A JPS5570413A JP14372878A JP14372878A JPS5570413A JP S5570413 A JPS5570413 A JP S5570413A JP 14372878 A JP14372878 A JP 14372878A JP 14372878 A JP14372878 A JP 14372878A JP S5570413 A JPS5570413 A JP S5570413A
- Authority
- JP
- Japan
- Prior art keywords
- press
- seam
- welded pipe
- pipe
- manufacture
- 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 manufacture the large diameter welded pipe free from the dimensional defect, possessing uniform material characteristics in circumferential and logitudinal directions, by welding the seam of the open seam pipe, and next, by drawing for straightening and finishing with the O-press.
CONSTITUTION: The blank sheet 4, being prepared for the welding groove at its both edges and being at its edge, is bent into U with the U-press 1, and next is formed into the cylindrical open seam pipe 5 with the O-press 2; then, the seam is welded from inside and outside, and the straight seam welded pipe 6 is obtained. Next, this welded pipe 6 is drawn over the whole length with the O-press 3 to reduce the outer diameter finishing the final product.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14372878A JPS5570413A (en) | 1978-11-21 | 1978-11-21 | Manufacture of large diameter welded pipe |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14372878A JPS5570413A (en) | 1978-11-21 | 1978-11-21 | Manufacture of large diameter welded pipe |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5570413A true JPS5570413A (en) | 1980-05-27 |
Family
ID=15345613
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14372878A Pending JPS5570413A (en) | 1978-11-21 | 1978-11-21 | Manufacture of large diameter welded pipe |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5570413A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011521790A (en) * | 2008-06-06 | 2011-07-28 | アイゼンバウ クレーマー ゲゼルシャフト ミット ベシュレンクテル ハフツング | Method for manufacturing large steel pipes |
-
1978
- 1978-11-21 JP JP14372878A patent/JPS5570413A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011521790A (en) * | 2008-06-06 | 2011-07-28 | アイゼンバウ クレーマー ゲゼルシャフト ミット ベシュレンクテル ハフツング | Method for manufacturing large steel pipes |
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