JPS57209771A - Production of heat exchanger - Google Patents

Production of heat exchanger

Info

Publication number
JPS57209771A
JPS57209771A JP9323981A JP9323981A JPS57209771A JP S57209771 A JPS57209771 A JP S57209771A JP 9323981 A JP9323981 A JP 9323981A JP 9323981 A JP9323981 A JP 9323981A JP S57209771 A JPS57209771 A JP S57209771A
Authority
JP
Japan
Prior art keywords
tubes
fins
needle
section
brazing filler
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
JP9323981A
Other languages
Japanese (ja)
Other versions
JPS633712B2 (en
Inventor
Shozo Sato
Sukeaki Hamanaka
Yoshiaki Aoki
Yoshinori Watanabe
Rikuo Onoe
Tatsunori Takahane
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.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries 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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP9323981A priority Critical patent/JPS57209771A/en
Publication of JPS57209771A publication Critical patent/JPS57209771A/en
Publication of JPS633712B2 publication Critical patent/JPS633712B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K1/00—Soldering, e.g. brazing, or unsoldering
    • B23K1/0008—Soldering, e.g. brazing, or unsoldering specially adapted for particular articles or work
    • B23K1/0012—Brazing heat exchangers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)

Abstract

PURPOSE:To increase heat transfer areas, to suppress the increase in pressure drops and to make the reduction in size and weight possible by forming and laminating needle-like fins to a plate shape, and forming these fins into a circular shape in section. CONSTITUTION:Fitting holes 7 to be inserted and fitted with heat transfer tubes 1 according to the configurations of the tubes 1 are blanked to a metallic sheet 5 which is clad with brazing filler metals on both surfaces. Needle-like fins 2a of a rectangular shape in section of a prescribed thickness and length extending in the direction intersecting orthogonally with the flow of fluid on the outside of the tubes are blanked at prescribed intervals between these holes 7, whereby a needle-like fin plate 3 is formed. Such plates 3 are fitted onto the tubes 1 and are laminated, and headers 4 are connected to both end parts of the tubes 1, whereby the fluid flow passages in the tubes are formed. These are put in a brazing furnace whereby they are heated to allow the brazing filler metals to melt and solidify, where the tubes 1 and the plates 3 as well as the tubes 1 and the headers 4 are brazed and joined. At the same time, the brazing filler metals on both sides of the fins 2a are melted and solidified and the needle-like fins of a circular shape in section are formed by the surface tension thereof.
JP9323981A 1981-06-17 1981-06-17 Production of heat exchanger Granted JPS57209771A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9323981A JPS57209771A (en) 1981-06-17 1981-06-17 Production of heat exchanger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9323981A JPS57209771A (en) 1981-06-17 1981-06-17 Production of heat exchanger

Publications (2)

Publication Number Publication Date
JPS57209771A true JPS57209771A (en) 1982-12-23
JPS633712B2 JPS633712B2 (en) 1988-01-25

Family

ID=14076970

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9323981A Granted JPS57209771A (en) 1981-06-17 1981-06-17 Production of heat exchanger

Country Status (1)

Country Link
JP (1) JPS57209771A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60105974U (en) * 1983-12-20 1985-07-19 三菱重工業株式会社 Needle fins for heat exchangers
JPH0650688A (en) * 1992-07-29 1994-02-25 Toshiba Corp Heat exchanger

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60105974U (en) * 1983-12-20 1985-07-19 三菱重工業株式会社 Needle fins for heat exchangers
JPH0356771Y2 (en) * 1983-12-20 1991-12-20
JPH0650688A (en) * 1992-07-29 1994-02-25 Toshiba Corp Heat exchanger

Also Published As

Publication number Publication date
JPS633712B2 (en) 1988-01-25

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