JPS5714427A - Expanding and grooving device for heat transfer pipe for heat exchanger - Google Patents

Expanding and grooving device for heat transfer pipe for heat exchanger

Info

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
Application number
JP9042980A
Other languages
Japanese (ja)
Other versions
JPS5933450B2 (en
Inventor
Mitsuru Nobusue
Hideaki Miura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Showa Aluminum Can Corp
Original Assignee
Showa Aluminum Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Showa Aluminum Corp filed Critical Showa Aluminum Corp
Priority to JP9042980A priority Critical patent/JPS5933450B2/en
Publication of JPS5714427A publication Critical patent/JPS5714427A/en
Publication of JPS5933450B2 publication Critical patent/JPS5933450B2/en
Expired legal-status Critical Current

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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
JP9042980A 1980-07-01 1980-07-01 Tube expansion and internal grooving device for heat transfer tubes for heat exchangers Expired JPS5933450B2 (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (6)

* Cited by examiner, † Cited by third party
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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