JPS55144336A - Method and device for correcting shape and size of pipe end - Google Patents
Method and device for correcting shape and size of pipe endInfo
- Publication number
- JPS55144336A JPS55144336A JP5178079A JP5178079A JPS55144336A JP S55144336 A JPS55144336 A JP S55144336A JP 5178079 A JP5178079 A JP 5178079A JP 5178079 A JP5178079 A JP 5178079A JP S55144336 A JPS55144336 A JP S55144336A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- end part
- shape
- connecting rod
- hydraulic cylinder
- 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
Landscapes
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
Abstract
PURPOSE: To accurately and readily correct pipe ends to the specified size and shape by heating the pipe end and inserting a pipe expanding jig into its inner side.
CONSTITUTION: The end part E of a cylindrical pipe P is heated and a support ring 1 mounted with a hydraulic cylinder 5 is placed along the outside circumference of the pipe P. Both locking pieces 4 are tightened by means of bolts and nuts to firmly install the support ring 1 to the pipe P. A cylindrical body 9 forming the taper 10 of a pipe expanding jig 7 is inserted into the inner side of the end part E of the pipe P and the pipe expanding jig 7 is connected by means of a fitting 11 to the end of the connecting rod 6 of the hydraulic cylinder 5. Next, the hydraulic cylinder 5 is operated to pull in the connecting rod 6 and insert the cylindrical body 9 into the end part E of the pipe P, thereby expanding the end part E to the specified shape and size. After the pipe P is restrained and cooled, the pipe expanding jig 7 and connecting rod 6 are removed and the support ring 1 is removed from the pipe P. Hence, the end part E of the pipe P becomes larger at the circumference by the thermally expanded length and its diameter becomes round owing to the shape of the taper 10 of the cylindrical body 9.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5178079A JPS55144336A (en) | 1979-04-25 | 1979-04-25 | Method and device for correcting shape and size of pipe end |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5178079A JPS55144336A (en) | 1979-04-25 | 1979-04-25 | Method and device for correcting shape and size of pipe end |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55144336A true JPS55144336A (en) | 1980-11-11 |
Family
ID=12896457
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5178079A Pending JPS55144336A (en) | 1979-04-25 | 1979-04-25 | Method and device for correcting shape and size of pipe end |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55144336A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6453786A (en) * | 1987-08-26 | 1989-03-01 | Sumitomo Metal Ind | Manufacture of driving shaft made of steel pipe |
KR20060054617A (en) * | 2004-11-15 | 2006-05-23 | 경상대학교산학협력단 | Simultaneous cross-section forming and assembly of one line of hair pins |
CN103567260A (en) * | 2012-08-12 | 2014-02-12 | 顾龙华 | Pipe opening circle checking and circle shaping device for seamless steel pipe |
CN104550516A (en) * | 2014-12-15 | 2015-04-29 | 南京航空航天大学 | Steel pipe cold diameter expanding straightening method |
CN104785580A (en) * | 2015-04-20 | 2015-07-22 | 骏马石油装备制造有限公司 | Cylinder roundness correction and supporting mechanism |
CN105268779A (en) * | 2015-11-24 | 2016-01-27 | 哈尔滨工业大学 | Accurate control device and method for inner diameter size of titanium alloy barrel cone composite component |
KR102077809B1 (en) * | 2019-07-30 | 2020-02-14 | (주)에쎈테크 | Device for correcting pipe shape |
-
1979
- 1979-04-25 JP JP5178079A patent/JPS55144336A/en active Pending
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6453786A (en) * | 1987-08-26 | 1989-03-01 | Sumitomo Metal Ind | Manufacture of driving shaft made of steel pipe |
KR20060054617A (en) * | 2004-11-15 | 2006-05-23 | 경상대학교산학협력단 | Simultaneous cross-section forming and assembly of one line of hair pins |
CN103567260A (en) * | 2012-08-12 | 2014-02-12 | 顾龙华 | Pipe opening circle checking and circle shaping device for seamless steel pipe |
CN104550516A (en) * | 2014-12-15 | 2015-04-29 | 南京航空航天大学 | Steel pipe cold diameter expanding straightening method |
CN104785580A (en) * | 2015-04-20 | 2015-07-22 | 骏马石油装备制造有限公司 | Cylinder roundness correction and supporting mechanism |
CN105268779A (en) * | 2015-11-24 | 2016-01-27 | 哈尔滨工业大学 | Accurate control device and method for inner diameter size of titanium alloy barrel cone composite component |
KR102077809B1 (en) * | 2019-07-30 | 2020-02-14 | (주)에쎈테크 | Device for correcting pipe shape |
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