JPS55100831A - Manufacture of heat transfer pipe - Google Patents

Manufacture of heat transfer pipe

Info

Publication number
JPS55100831A
JPS55100831A JP767879A JP767879A JPS55100831A JP S55100831 A JPS55100831 A JP S55100831A JP 767879 A JP767879 A JP 767879A JP 767879 A JP767879 A JP 767879A JP S55100831 A JPS55100831 A JP S55100831A
Authority
JP
Japan
Prior art keywords
pipe
die
heating
manufacture
protuberant
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
Application number
JP767879A
Other languages
Japanese (ja)
Inventor
Hiromitsu Takei
Kaname Suzuki
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.)
Nikko Engineering Co Ltd
Original Assignee
Nikko Engineering Co Ltd
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 Nikko Engineering Co Ltd filed Critical Nikko Engineering Co Ltd
Priority to JP767879A priority Critical patent/JPS55100831A/en
Publication of JPS55100831A publication Critical patent/JPS55100831A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To manufacture the heating pipe free from the structural deterioration at high efficiency, by inserting the smooth round pipe made of thin titanium sheet into the die, and by applying the hydraulic pressure to the inside of pipe, in order to form the groove of specified shape in the outer surface of the pipe.
CONSTITUTION: The inner surface of the die 12, segmented into four parts, is provided with the left-handed spiral protuberant line 12e, the straight protuberant line 12f, etc.; the smooth round pipe 16 prepared from the thin titanium sheet is inserted into above die 12 through the open mouth 18, and the washer 20 is set interposing the copper gasket 19. The electricity is supplied to the electric heater buried in the dies wall for heating the titanium pipe to 200W300°C, and at the same time, the pressure oil is introduced into the pipe through the oil path 22; hereby, the groove of specified shape is formed in the outer surface of the pipe 16. According to this method, the heating surface of any shape can be formed through one pass.
COPYRIGHT: (C)1980,JPO&Japio
JP767879A 1979-01-27 1979-01-27 Manufacture of heat transfer pipe Pending JPS55100831A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP767879A JPS55100831A (en) 1979-01-27 1979-01-27 Manufacture of heat transfer pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP767879A JPS55100831A (en) 1979-01-27 1979-01-27 Manufacture of heat transfer pipe

Publications (1)

Publication Number Publication Date
JPS55100831A true JPS55100831A (en) 1980-08-01

Family

ID=11672441

Family Applications (1)

Application Number Title Priority Date Filing Date
JP767879A Pending JPS55100831A (en) 1979-01-27 1979-01-27 Manufacture of heat transfer pipe

Country Status (1)

Country Link
JP (1) JPS55100831A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59103072U (en) * 1982-12-22 1984-07-11 カルソニックカンセイ株式会社 flat tube evaporator
JPS59186771U (en) * 1983-05-31 1984-12-11 カルソニックカンセイ株式会社 Stacked evaporator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59103072U (en) * 1982-12-22 1984-07-11 カルソニックカンセイ株式会社 flat tube evaporator
JPS59186771U (en) * 1983-05-31 1984-12-11 カルソニックカンセイ株式会社 Stacked evaporator

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