JPS558343A - Vacuum brazing method - Google Patents

Vacuum brazing method

Info

Publication number
JPS558343A
JPS558343A JP8070078A JP8070078A JPS558343A JP S558343 A JPS558343 A JP S558343A JP 8070078 A JP8070078 A JP 8070078A JP 8070078 A JP8070078 A JP 8070078A JP S558343 A JPS558343 A JP S558343A
Authority
JP
Japan
Prior art keywords
brazing
vacuum
heat exchanger
communicating
hermetic space
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
JP8070078A
Other languages
Japanese (ja)
Other versions
JPS5649183B2 (en
Inventor
Toshiro Kajiwara
Takayuki Yukishiro
Noboru Nomura
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.)
Denso Corp
Original Assignee
NipponDenso 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 NipponDenso Co Ltd filed Critical NipponDenso Co Ltd
Priority to JP8070078A priority Critical patent/JPS558343A/en
Publication of JPS558343A publication Critical patent/JPS558343A/en
Publication of JPS5649183B2 publication Critical patent/JPS5649183B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Pressure Welding/Diffusion-Bonding (AREA)

Abstract

PURPOSE: To let bonding defects to be surely prevented by providing a communicating hole in the hermetic space of the member to be brazed to open the space to the atmosphere and vacuum brazing the member in this state.
CONSTITUTION: A communicating hole 11 for communicating the hermetic space 10 formed between the inlet joint 1 and outlet joint 2 of a heat exchanger and the cupform part 3a of an end plate 3 to the outside is beforehand formed in the cup- form part 3a. The heat exchanger is washed with an organic solvent to be degreeased. The aluminum heat exchanger is put for 10 minutes in a vacuum heating furnace of temperature 600°C and vacuum degrees 10-4 to 10-5 torr to undergo vacuum brazing. At this time, the hermetic space 10 is open to the outside through the communicating pipe 11 and therefore vacuum state does not remain there, hence the phenomenon that air enters the brazing material at the brazing parts A, B, C does not occur. As a result, the brazing material sets densely in the brazing parts A, B, C and brazing is surely accomplished.
COPYRIGHT: (C)1980,JPO&Japio
JP8070078A 1978-07-03 1978-07-03 Vacuum brazing method Granted JPS558343A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8070078A JPS558343A (en) 1978-07-03 1978-07-03 Vacuum brazing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8070078A JPS558343A (en) 1978-07-03 1978-07-03 Vacuum brazing method

Publications (2)

Publication Number Publication Date
JPS558343A true JPS558343A (en) 1980-01-21
JPS5649183B2 JPS5649183B2 (en) 1981-11-20

Family

ID=13725596

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8070078A Granted JPS558343A (en) 1978-07-03 1978-07-03 Vacuum brazing method

Country Status (1)

Country Link
JP (1) JPS558343A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5770643A (en) * 1980-10-23 1982-05-01 Nisshin Spinning Laminated resin foaming body and its manufacture
ITVI20090204A1 (en) * 2009-07-30 2011-01-31 Aldo Polidoro HEAT EXCHANGER TO BE USED, IN PARTICULAR, WITH A COMBUSTIBLE GAS BURNER

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5770643A (en) * 1980-10-23 1982-05-01 Nisshin Spinning Laminated resin foaming body and its manufacture
ITVI20090204A1 (en) * 2009-07-30 2011-01-31 Aldo Polidoro HEAT EXCHANGER TO BE USED, IN PARTICULAR, WITH A COMBUSTIBLE GAS BURNER

Also Published As

Publication number Publication date
JPS5649183B2 (en) 1981-11-20

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