JPS5750271A - Brazing method - Google Patents
Brazing methodInfo
- Publication number
- JPS5750271A JPS5750271A JP12469580A JP12469580A JPS5750271A JP S5750271 A JPS5750271 A JP S5750271A JP 12469580 A JP12469580 A JP 12469580A JP 12469580 A JP12469580 A JP 12469580A JP S5750271 A JPS5750271 A JP S5750271A
- Authority
- JP
- Japan
- Prior art keywords
- vacuum
- pressure
- brazing
- furnace
- maintained
- 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
Links
Landscapes
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
PURPOSE: To decrease the defects produced in a brazed part and to obtain the sound brazed part by controlling the pressure of a brazing atmosphere.
CONSTITUTION: While the degree of vacuum in a furnace 11 is measured with a vacuum gage 12, the displacement of a vacuum pump 13 and the gas introduction amt. of a gas introducing valve 14 are regulated to regulate the pressure in the furnace 11. The inside of the furnace is heated up to a brazing material molting temp. in a low pressure (high degree of vacuum) atmosphere, and the heating is maintained for a certain time (until the brazing filler metal melts and runs to the joint). Thence, while the temp. is held maintained high, the heating is maintained for a certain time (until pores shrink) under the atmospheric pressure relatively higher (low degree of vacuum) than the above-mentioned pressure. According to this method, the volume of the pores produced in the brazing part decreases considerably in inverse proportion to the atmospheric pressure.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12469580A JPS5750271A (en) | 1980-09-10 | 1980-09-10 | Brazing method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12469580A JPS5750271A (en) | 1980-09-10 | 1980-09-10 | Brazing method |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5750271A true JPS5750271A (en) | 1982-03-24 |
Family
ID=14891799
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12469580A Pending JPS5750271A (en) | 1980-09-10 | 1980-09-10 | Brazing method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5750271A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4997124A (en) * | 1988-04-20 | 1991-03-05 | Zojirushi Corporation | Vacuum-insulated, double-walled metal structure and method for its production |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5351159A (en) * | 1976-10-22 | 1978-05-10 | Hitachi Ltd | Method of producing composite brazing filler |
JPS53125252A (en) * | 1977-04-09 | 1978-11-01 | Mitsubishi Aluminium | Brazing method of aluminium |
JPS5471749A (en) * | 1977-11-21 | 1979-06-08 | Mitsubishi Aluminium | Soldering of easily evaporative element containing aluminium alloy without using flux |
-
1980
- 1980-09-10 JP JP12469580A patent/JPS5750271A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5351159A (en) * | 1976-10-22 | 1978-05-10 | Hitachi Ltd | Method of producing composite brazing filler |
JPS53125252A (en) * | 1977-04-09 | 1978-11-01 | Mitsubishi Aluminium | Brazing method of aluminium |
JPS5471749A (en) * | 1977-11-21 | 1979-06-08 | Mitsubishi Aluminium | Soldering of easily evaporative element containing aluminium alloy without using flux |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4997124A (en) * | 1988-04-20 | 1991-03-05 | Zojirushi Corporation | Vacuum-insulated, double-walled metal structure and method for its production |
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