JPS57113701A - Manufacture and manufacturing device of duct type trolley - Google Patents
Manufacture and manufacturing device of duct type trolleyInfo
- Publication number
- JPS57113701A JPS57113701A JP55185420A JP18542080A JPS57113701A JP S57113701 A JPS57113701 A JP S57113701A JP 55185420 A JP55185420 A JP 55185420A JP 18542080 A JP18542080 A JP 18542080A JP S57113701 A JPS57113701 A JP S57113701A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- slit
- metallic pipe
- metallic
- duct type
- 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 minimize thermal change of a metallic pipe when processing a slit by a method wherein a metallic pipe is held down by a pipe holding fitting and fused by cooling with a cooling medium to process a slit.
CONSTITUTION: By utilizing pipe positioning fittings 3, a metallic pipe 4 is rightly placed in a pipe cooling vessel 2 to hold said metallic pipe 4 from both sides with pipe holding fittings 6 for fixing said pipe holding fittings 6 with bolts 7. Thereafter a cooling medium 5 is put in the pipe cooling vessel 2 up to the height of 0.5HW0.7H of the metallic pipe 4. Under said condition the metallic pipe 4 is diffused by plasma or laser to perform slit processing for forming a slit 10 to obain a duct type trolley 11. Thereby a thermal change of the metallic pipe at the time of slit processing is minimized enabling to manufacture a duct type trolley.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55185420A JPS57113701A (en) | 1980-12-29 | 1980-12-29 | Manufacture and manufacturing device of duct type trolley |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55185420A JPS57113701A (en) | 1980-12-29 | 1980-12-29 | Manufacture and manufacturing device of duct type trolley |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57113701A true JPS57113701A (en) | 1982-07-15 |
Family
ID=16170469
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55185420A Pending JPS57113701A (en) | 1980-12-29 | 1980-12-29 | Manufacture and manufacturing device of duct type trolley |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57113701A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2018140430A (en) * | 2017-02-28 | 2018-09-13 | 大同特殊鋼株式会社 | Cutting method and cutting device |
JP2020001043A (en) * | 2018-06-25 | 2020-01-09 | 大同特殊鋼株式会社 | Cutting device and cutting method |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53127349A (en) * | 1977-04-14 | 1978-11-07 | Nippon Steel Corp | Removing method for slag or the like in plasma arc cutting |
JPS5496452A (en) * | 1978-01-17 | 1979-07-30 | Kawasaki Steel Co | Slit forming method of steel pipe in longituidinal direction |
-
1980
- 1980-12-29 JP JP55185420A patent/JPS57113701A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53127349A (en) * | 1977-04-14 | 1978-11-07 | Nippon Steel Corp | Removing method for slag or the like in plasma arc cutting |
JPS5496452A (en) * | 1978-01-17 | 1979-07-30 | Kawasaki Steel Co | Slit forming method of steel pipe in longituidinal direction |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2018140430A (en) * | 2017-02-28 | 2018-09-13 | 大同特殊鋼株式会社 | Cutting method and cutting device |
JP2020001043A (en) * | 2018-06-25 | 2020-01-09 | 大同特殊鋼株式会社 | Cutting device and cutting method |
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