JPS55147442A - Production of plate fin for heat exchanger - Google Patents

Production of plate fin for heat exchanger

Info

Publication number
JPS55147442A
JPS55147442A JP5422879A JP5422879A JPS55147442A JP S55147442 A JPS55147442 A JP S55147442A JP 5422879 A JP5422879 A JP 5422879A JP 5422879 A JP5422879 A JP 5422879A JP S55147442 A JPS55147442 A JP S55147442A
Authority
JP
Japan
Prior art keywords
recess
blank
flat plate
plate fin
heat transfer
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
JP5422879A
Other languages
Japanese (ja)
Inventor
Yoshihisa Hosoe
Sumiyoshi Takeda
Masamichi Hanada
Takao Chiaki
Toshio Hatada
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 JP5422879A priority Critical patent/JPS55147442A/en
Publication of JPS55147442A publication Critical patent/JPS55147442A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
    • B21D35/002—Processes combined with methods covered by groups B21D1/00 - B21D31/00
    • B21D35/005—Processes combined with methods covered by groups B21D1/00 - B21D31/00 characterized by the material of the blank or the workpiece
    • B21D35/006—Blanks having varying thickness, e.g. tailored blanks

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

PURPOSE: To improve heat conductivity by the use of thin materials by restraining the recess formed in a plate fin blank from the circumference in a non-restrained state and pressing the recess to a flat surface thereby making said part to flat plate thicker than the restraining part and forming a heat transfer pipe insertion hole.
CONSTITUTION: A recess 10 of a diameter larger than the heat transfer pipe insertion hole is formed by upper and lower dies to a plate fin blank of a size suitably larger than the finish size in a non-restrained state. At this time, the slightly larger blank becomes close to the finish size on account of forming of the recess 10, thereby maintaining the thickness of the blank. Next, the circumference of the recess 10 of the plate fin 11 thus worked is pressed and restrained by upper and lower fittings 12, 13. In this restrained state, the recess 10 is pressed to flat plate form by upper and lower presses 14, 15. As a result, the curved part volume of the flat plate part 16 is formed to a straight part and said part becomes thicker correspondingly. Thence, a heat transfer pipe insertion lower hole 17 is pierced in the flat plate 16 and the circumferenctial edge is flared and rolled to form a flange part 19. Its end part 20 is curled to the outside.
COPYRIGHT: (C)1980,JPO&Japio
JP5422879A 1979-05-04 1979-05-04 Production of plate fin for heat exchanger Pending JPS55147442A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5422879A JPS55147442A (en) 1979-05-04 1979-05-04 Production of plate fin for heat exchanger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5422879A JPS55147442A (en) 1979-05-04 1979-05-04 Production of plate fin for heat exchanger

Publications (1)

Publication Number Publication Date
JPS55147442A true JPS55147442A (en) 1980-11-17

Family

ID=12964681

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5422879A Pending JPS55147442A (en) 1979-05-04 1979-05-04 Production of plate fin for heat exchanger

Country Status (1)

Country Link
JP (1) JPS55147442A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60180631A (en) * 1984-02-28 1985-09-14 Toshiba Corp Manufacture of fin for heat exchanger
JP2014092347A (en) * 2012-11-06 2014-05-19 Kobe Steel Ltd Molding method of fin for heat exchanger, and fin for heat exchanger
CN111790776A (en) * 2020-07-16 2020-10-20 龙泉市双振铝业有限公司 Automatic processing equipment for porous micro-channel flat tube of heat exchanger

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5253760A (en) * 1975-10-28 1977-04-30 Kouichi Fujii Method of making metal bat

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5253760A (en) * 1975-10-28 1977-04-30 Kouichi Fujii Method of making metal bat

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60180631A (en) * 1984-02-28 1985-09-14 Toshiba Corp Manufacture of fin for heat exchanger
JPH0235615B2 (en) * 1984-02-28 1990-08-13 Tokyo Shibaura Electric Co
JP2014092347A (en) * 2012-11-06 2014-05-19 Kobe Steel Ltd Molding method of fin for heat exchanger, and fin for heat exchanger
CN111790776A (en) * 2020-07-16 2020-10-20 龙泉市双振铝业有限公司 Automatic processing equipment for porous micro-channel flat tube of heat exchanger

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