JPH0116208B2 - - Google Patents
Info
- Publication number
- JPH0116208B2 JPH0116208B2 JP9572380A JP9572380A JPH0116208B2 JP H0116208 B2 JPH0116208 B2 JP H0116208B2 JP 9572380 A JP9572380 A JP 9572380A JP 9572380 A JP9572380 A JP 9572380A JP H0116208 B2 JPH0116208 B2 JP H0116208B2
- Authority
- JP
- Japan
- Prior art keywords
- roll
- welding
- length
- square
- electric resistance
- 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
Links
- 238000003466 welding Methods 0.000 claims description 46
- 229910000831 Steel Inorganic materials 0.000 claims description 35
- 239000010959 steel Substances 0.000 claims description 35
- 239000000463 material Substances 0.000 claims description 23
- 238000004519 manufacturing process Methods 0.000 claims description 15
- 238000009958 sewing Methods 0.000 claims 1
- 238000005452 bending Methods 0.000 description 23
- 239000002184 metal Substances 0.000 description 19
- 238000000034 method Methods 0.000 description 19
- 230000007547 defect Effects 0.000 description 6
- 238000002474 experimental method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 230000000630 rising effect Effects 0.000 description 3
- 235000011499 Ferocactus hamatacanthus Nutrition 0.000 description 2
- 244000154165 Ferocactus hamatacanthus Species 0.000 description 2
- 239000010953 base metal Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
- 239000010981 turquoise Substances 0.000 description 1
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9572380A JPS5722815A (en) | 1980-07-15 | 1980-07-15 | Production of square-shaped seam welded steel tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9572380A JPS5722815A (en) | 1980-07-15 | 1980-07-15 | Production of square-shaped seam welded steel tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5722815A JPS5722815A (en) | 1982-02-05 |
| JPH0116208B2 true JPH0116208B2 (nl) | 1989-03-23 |
Family
ID=14145385
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9572380A Granted JPS5722815A (en) | 1980-07-15 | 1980-07-15 | Production of square-shaped seam welded steel tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5722815A (nl) |
-
1980
- 1980-07-15 JP JP9572380A patent/JPS5722815A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5722815A (en) | 1982-02-05 |
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