JPS628246B2 - - Google Patents

Info

Publication number
JPS628246B2
JPS628246B2 JP53112215A JP11221578A JPS628246B2 JP S628246 B2 JPS628246 B2 JP S628246B2 JP 53112215 A JP53112215 A JP 53112215A JP 11221578 A JP11221578 A JP 11221578A JP S628246 B2 JPS628246 B2 JP S628246B2
Authority
JP
Japan
Prior art keywords
heat exchange
exchange pipe
pipe
grooves
heat exchanger
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.)
Expired
Application number
JP53112215A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5540042A (en
Inventor
Katsuji Uehara
Izumi Ochiai
Masahiro Myagi
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 JP11221578A priority Critical patent/JPS5540042A/ja
Publication of JPS5540042A publication Critical patent/JPS5540042A/ja
Publication of JPS628246B2 publication Critical patent/JPS628246B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Metal Extraction Processes (AREA)
JP11221578A 1978-09-14 1978-09-14 Fabricating method of fine groove in inside surface of u-pipe Granted JPS5540042A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11221578A JPS5540042A (en) 1978-09-14 1978-09-14 Fabricating method of fine groove in inside surface of u-pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11221578A JPS5540042A (en) 1978-09-14 1978-09-14 Fabricating method of fine groove in inside surface of u-pipe

Publications (2)

Publication Number Publication Date
JPS5540042A JPS5540042A (en) 1980-03-21
JPS628246B2 true JPS628246B2 (cg-RX-API-DMAC7.html) 1987-02-21

Family

ID=14581128

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11221578A Granted JPS5540042A (en) 1978-09-14 1978-09-14 Fabricating method of fine groove in inside surface of u-pipe

Country Status (1)

Country Link
JP (1) JPS5540042A (cg-RX-API-DMAC7.html)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5317545A (en) * 1976-08-02 1978-02-17 Toyota Motor Co Ltd Spot welding machine

Also Published As

Publication number Publication date
JPS5540042A (en) 1980-03-21

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