JPH0438516B2 - - Google Patents
Info
- Publication number
- JPH0438516B2 JPH0438516B2 JP61093277A JP9327786A JPH0438516B2 JP H0438516 B2 JPH0438516 B2 JP H0438516B2 JP 61093277 A JP61093277 A JP 61093277A JP 9327786 A JP9327786 A JP 9327786A JP H0438516 B2 JPH0438516 B2 JP H0438516B2
- Authority
- JP
- Japan
- Prior art keywords
- edge
- explanatory diagram
- electric resistance
- wall thickness
- roll
- 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.)
- Expired - Lifetime
Links
- 238000000034 method Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 12
- 239000011324 bead Substances 0.000 description 8
- 238000007796 conventional method Methods 0.000 description 6
- 238000005520 cutting process Methods 0.000 description 6
- 238000009826 distribution Methods 0.000 description 5
- 230000015556 catabolic process Effects 0.000 description 4
- 230000007547 defect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000008719 thickening Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Bending Of Plates, Rods, And Pipes (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9327786A JPS62252685A (ja) | 1986-04-24 | 1986-04-24 | 電縫管の製造方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9327786A JPS62252685A (ja) | 1986-04-24 | 1986-04-24 | 電縫管の製造方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS62252685A JPS62252685A (ja) | 1987-11-04 |
JPH0438516B2 true JPH0438516B2 (de) | 1992-06-24 |
Family
ID=14077939
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9327786A Granted JPS62252685A (ja) | 1986-04-24 | 1986-04-24 | 電縫管の製造方法 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS62252685A (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0238123U (de) * | 1988-08-31 | 1990-03-14 | ||
JP2618084B2 (ja) * | 1990-10-17 | 1997-06-11 | 三菱伸銅株式会社 | 内面溝付き管の製造方法および製造装置 |
JP5355182B2 (ja) * | 2009-03-31 | 2013-11-27 | 日新製鋼株式会社 | 溶接鋼管の製造方法及びクラッシング設備 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55128383A (en) * | 1979-03-27 | 1980-10-04 | Sumitomo Metal Ind Ltd | Production of electric welded tube |
JPS6036348A (ja) * | 1983-08-05 | 1985-02-25 | Nippon Kogaku Kk <Nikon> | 眼鏡レンズ用ガラス |
-
1986
- 1986-04-24 JP JP9327786A patent/JPS62252685A/ja active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55128383A (en) * | 1979-03-27 | 1980-10-04 | Sumitomo Metal Ind Ltd | Production of electric welded tube |
JPS6036348A (ja) * | 1983-08-05 | 1985-02-25 | Nippon Kogaku Kk <Nikon> | 眼鏡レンズ用ガラス |
Also Published As
Publication number | Publication date |
---|---|
JPS62252685A (ja) | 1987-11-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |