To obtain sufficient brazing strength of an inner fin brazing part and an outer fin brazing part by performing the internal brazing difficult for performing the flux coating in a flux-less brazing manner, and by performing the NB brazing of other parts.
In the method of manufacturing an aluminum-made heat exchanger with tubes 3 made of an aluminum alloy, inner fins 4 inserted in the tubes 3 and outer fins 5 provided between the tubes 3, a clad material covering the surface of a core with 0.3-1.0% magnesium (Mg) added to a brazing filler metal is used for the heat exchanger components 3, 4, 5, and the heat exchanger components 3, 4, 5 formed of the clad material are assembled, and then a nocolok flux is applied on the assembled heat exchanger components. Thereafter, the heat exchanger components 3, 4, 5 are heated at the temperature-rising rate of 30°C/min and joined with each other in the atmosphere filled with an inert gas with the oxygen (O
COPYRIGHT: (C)2007,JPO&INPIT
| JP2022057500 | METHOD OF MANUFACTURING JOINT BODY |
| JPH0739220 | [Title of the Invention] Screen mask for cream solder printing |
| JPS62156069 | BRAZING METHOD |
| JP2000352015A | 2000-12-19 | |||
| JP2000096819A | 2000-04-04 | |||
| JPH09177311A | 1997-07-08 | |||
| JP2006045829A | 2006-02-16 | |||
| JP3084672U | 2002-03-29 | |||
| JPS5975819U | 1984-05-23 |
Iwa Saki Kokuni
Kawamata Sumio
Masakazu Ito
Shunichi Takahashi
Toshio Takamatsu
Next Patent: INSPECTION METHOD AND INSPECTION DEVICE FOR TIGHT CONTACT PART IN MOLD