Method of brazing an aluminum heat exchanger
US4645119A · kind A · utility
31Cited by
4References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 5, 1984 |
| Grant date | Feb 24, 1987 |
| Priority date | — |
| Expiry date | Jul 5, 2004 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF28F21/084
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A heat exchanger and a method of manufacturing a heat exchanger by brazing metal members mainly made of Al or Al alloy is disclosed. The heat exchanger has a plurality of brazed metal members, at least one of the brazed metal members being made of brazing sheet clad with a brazing material. The brazed portions of the metal members or the whole surface of the heat exchanger are coated with a corrosion-resistant fluoride flux consisting essentially of 25-40% KF, 38-54% AlF3 and 3-30% ZnF2 by weight which forms a corrosion-inhibiting metallic film.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.