JPS5261159A - Method of forming numeroud fine grooves on inside of pipe - Google Patents

Method of forming numeroud fine grooves on inside of pipe

Info

Publication number
JPS5261159A
JPS5261159A JP13717575A JP13717575A JPS5261159A JP S5261159 A JPS5261159 A JP S5261159A JP 13717575 A JP13717575 A JP 13717575A JP 13717575 A JP13717575 A JP 13717575A JP S5261159 A JPS5261159 A JP S5261159A
Authority
JP
Japan
Prior art keywords
numeroud
pipe
forming
fine grooves
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
JP13717575A
Other languages
Japanese (ja)
Other versions
JPS5317546B2 (en
Inventor
Izumi Ochiai
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP13717575A priority Critical patent/JPS5261159A/en
Publication of JPS5261159A publication Critical patent/JPS5261159A/en
Publication of JPS5317546B2 publication Critical patent/JPS5317546B2/ja
Granted legal-status Critical Current

Links

JP13717575A 1975-11-17 1975-11-17 Method of forming numeroud fine grooves on inside of pipe Granted JPS5261159A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13717575A JPS5261159A (en) 1975-11-17 1975-11-17 Method of forming numeroud fine grooves on inside of pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13717575A JPS5261159A (en) 1975-11-17 1975-11-17 Method of forming numeroud fine grooves on inside of pipe

Publications (2)

Publication Number Publication Date
JPS5261159A true JPS5261159A (en) 1977-05-20
JPS5317546B2 JPS5317546B2 (en) 1978-06-09

Family

ID=15192557

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13717575A Granted JPS5261159A (en) 1975-11-17 1975-11-17 Method of forming numeroud fine grooves on inside of pipe

Country Status (1)

Country Link
JP (1) JPS5261159A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58116936A (en) * 1982-10-18 1983-07-12 Hitachi Ltd Working method for internal groove of heat exchanging pipe

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6849340B2 (en) 2016-08-10 2021-03-24 キヤノン株式会社 Image forming device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58116936A (en) * 1982-10-18 1983-07-12 Hitachi Ltd Working method for internal groove of heat exchanging pipe

Also Published As

Publication number Publication date
JPS5317546B2 (en) 1978-06-09

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