Method for brazing a magnesium-containing aluminum alloy
US4705206A · kind A · utility
6Cited by
1References
8Claims
0Family size
Assignee
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Key dates
| Filing date | Dec 18, 1985 |
| Grant date | Nov 10, 1987 |
| Priority date | — |
| Expiry date | Dec 18, 2005 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K2103/16
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An aluminum alloy including magnesium can be joined by brazing even when flux made of potassium fluoaluminates is employed. The aluminum alloy including magnesium is heated in a vacuum, so that magnesium in the aluminum alloy evaporates from the surface of the aluminum alloy. The weight ratio of magnesium at the surface of the aluminum alloy can be reduced to less than 0.5 as a result of the heating step. The aluminum alloy treated by this operation is, thereafter covered with brazing material and clad with flux. After that, the aluminum alloy is heated in a furnace in order to melt the brazing material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.