JPH0450990Y2 - - Google Patents
Info
- Publication number
- JPH0450990Y2 JPH0450990Y2 JP1988142701U JP14270188U JPH0450990Y2 JP H0450990 Y2 JPH0450990 Y2 JP H0450990Y2 JP 1988142701 U JP1988142701 U JP 1988142701U JP 14270188 U JP14270188 U JP 14270188U JP H0450990 Y2 JPH0450990 Y2 JP H0450990Y2
- Authority
- JP
- Japan
- Prior art keywords
- circular tube
- support piece
- circular
- supporting piece
- piece
- 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
- 230000006835 compression Effects 0.000 claims description 16
- 238000007906 compression Methods 0.000 claims description 16
- 238000003892 spreading Methods 0.000 claims description 15
- 238000003754 machining Methods 0.000 claims description 12
- 238000005096 rolling process Methods 0.000 description 18
- 238000001514 detection method Methods 0.000 description 10
- 230000002093 peripheral effect Effects 0.000 description 10
- 238000006073 displacement reaction Methods 0.000 description 4
- 239000002184 metal Substances 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Landscapes
- Forging (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988142701U JPH0450990Y2 (ru) | 1988-11-02 | 1988-11-02 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988142701U JPH0450990Y2 (ru) | 1988-11-02 | 1988-11-02 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0265429U JPH0265429U (ru) | 1990-05-17 |
| JPH0450990Y2 true JPH0450990Y2 (ru) | 1992-12-01 |
Family
ID=31408873
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988142701U Expired JPH0450990Y2 (ru) | 1988-11-02 | 1988-11-02 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0450990Y2 (ru) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59232634A (ja) * | 1983-06-16 | 1984-12-27 | Nippon Alum Mfg Co Ltd:The | 管材、管材の拡管方法および装置 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6320423Y2 (ru) * | 1981-01-29 | 1988-06-07 |
-
1988
- 1988-11-02 JP JP1988142701U patent/JPH0450990Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59232634A (ja) * | 1983-06-16 | 1984-12-27 | Nippon Alum Mfg Co Ltd:The | 管材、管材の拡管方法および装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0265429U (ru) | 1990-05-17 |
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