JPH0220324B2 - - Google Patents
Info
- Publication number
- JPH0220324B2 JPH0220324B2 JP54006278A JP627879A JPH0220324B2 JP H0220324 B2 JPH0220324 B2 JP H0220324B2 JP 54006278 A JP54006278 A JP 54006278A JP 627879 A JP627879 A JP 627879A JP H0220324 B2 JPH0220324 B2 JP H0220324B2
- Authority
- JP
- Japan
- Prior art keywords
- diameter
- pipe
- reinforcing
- raw
- key point
- 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
- 230000003014 reinforcing effect Effects 0.000 claims description 20
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000003466 welding Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000010409 ironing Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6278A JPS5387704A (en) | 1977-01-07 | 1978-01-05 | Magnetic recording medium |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5597811A JPS5597811A (en) | 1980-07-25 |
JPH0220324B2 true JPH0220324B2 (da) | 1990-05-09 |
Family
ID=11463698
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP627879A Granted JPS5597811A (en) | 1978-01-05 | 1979-01-22 | Reinforcing method for shoulder part of pipe consisting of irregular diameter |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5597811A (da) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007030876A (ja) * | 2001-11-08 | 2007-02-08 | Bestex Kyoei Co Ltd | パイプ部材 |
JP3865626B2 (ja) * | 2001-11-08 | 2007-01-10 | 株式会社ベステックスキョーエイ | パイプ部材 |
JP6200255B2 (ja) * | 2013-09-26 | 2017-09-20 | 日新製鋼株式会社 | 金属二重管の製造方法 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5252925U (da) * | 1975-10-14 | 1977-04-15 |
-
1979
- 1979-01-22 JP JP627879A patent/JPS5597811A/ja active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5252925U (da) * | 1975-10-14 | 1977-04-15 |
Also Published As
Publication number | Publication date |
---|---|
JPS5597811A (en) | 1980-07-25 |
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