JPS5714427A - Expanding and grooving device for heat transfer pipe for heat exchanger - Google Patents
Expanding and grooving device for heat transfer pipe for heat exchangerInfo
- Publication number
- JPS5714427A JPS5714427A JP9042980A JP9042980A JPS5714427A JP S5714427 A JPS5714427 A JP S5714427A JP 9042980 A JP9042980 A JP 9042980A JP 9042980 A JP9042980 A JP 9042980A JP S5714427 A JPS5714427 A JP S5714427A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- expanding
- grooving
- rod
- spiral grooves
- 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.)
- Granted
Links
Landscapes
- Milling Processes (AREA)
Abstract
PURPOSE: To easily form deep spiral grooves simultaneously with expanding and lower the cost of a heat exchanger by fitting an expanding member and a grooving member on a core bar, and making the grooving member freely rotatable with respect to the core bar.
CONSTITUTION: A heat transfer pipe P is inserted into a hole opened in a fin, thence, a rod 2 disposed with an expanding and grooving device 1 at the front end is inserted into the pipe P from its front end by means of a hydraulic cylinder or the like. The pipe P is expanded by an expanding member 3, and the fin and the pipe P are joined. Further, when the rod 2 advances, the member 5 abuts on the inside surface of the pipe P and grooving blades 8 penetrate the inside surface of the pipe P. By the insertion pressure of the rod 2, the member 5 is rotated, whereby muliple spiral grooves are formed in the inside circumferential surface of the pipe P. When the rod 2 is pulled upon completion of the expanding and internal grooving of the pipe P, the blades 8 fit into the spiral grooves and retreat while rotating reversely, thereby permitting the removal of the rod 2 without collapsing the grooves.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9042980A JPS5933450B2 (en) | 1980-07-01 | 1980-07-01 | Tube expansion and internal grooving device for heat transfer tubes for heat exchangers |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9042980A JPS5933450B2 (en) | 1980-07-01 | 1980-07-01 | Tube expansion and internal grooving device for heat transfer tubes for heat exchangers |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5714427A true JPS5714427A (en) | 1982-01-25 |
JPS5933450B2 JPS5933450B2 (en) | 1984-08-16 |
Family
ID=13998356
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9042980A Expired JPS5933450B2 (en) | 1980-07-01 | 1980-07-01 | Tube expansion and internal grooving device for heat transfer tubes for heat exchangers |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5933450B2 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5982125A (en) * | 1982-09-29 | 1984-05-12 | キヤリア・コ−ポレイシヨン | Method and tool for diameter-expanding working and grooving pipe |
JPS6483326A (en) * | 1987-09-24 | 1989-03-29 | Showa Aluminum Corp | Pipe expanding device for pipe having internal spiral groove |
CN104315759A (en) * | 2014-10-22 | 2015-01-28 | 浙江斯贝乐制冷电器有限公司 | Outer spiral steel cylinder of evaporator for ice cream machine and machining method thereof |
WO2018131434A1 (en) * | 2017-01-12 | 2018-07-19 | 三菱電機株式会社 | Expansion tool, expanding device, expanding method for heating tube, and method for manufacturing a heat exchanger |
-
1980
- 1980-07-01 JP JP9042980A patent/JPS5933450B2/en not_active Expired
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5982125A (en) * | 1982-09-29 | 1984-05-12 | キヤリア・コ−ポレイシヨン | Method and tool for diameter-expanding working and grooving pipe |
JPH0344851B2 (en) * | 1982-09-29 | 1991-07-09 | Carrier Corp | |
JPS6483326A (en) * | 1987-09-24 | 1989-03-29 | Showa Aluminum Corp | Pipe expanding device for pipe having internal spiral groove |
CN104315759A (en) * | 2014-10-22 | 2015-01-28 | 浙江斯贝乐制冷电器有限公司 | Outer spiral steel cylinder of evaporator for ice cream machine and machining method thereof |
WO2018131434A1 (en) * | 2017-01-12 | 2018-07-19 | 三菱電機株式会社 | Expansion tool, expanding device, expanding method for heating tube, and method for manufacturing a heat exchanger |
JPWO2018131434A1 (en) * | 2017-01-12 | 2019-06-27 | 三菱電機株式会社 | Pipe expanding tool, pipe expanding apparatus, method of expanding heat transfer tube, and method of manufacturing heat exchanger |
Also Published As
Publication number | Publication date |
---|---|
JPS5933450B2 (en) | 1984-08-16 |
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