Brazing fin stock for use in aluminum base alloy heat exchanger
US4357397A · kind A · utility
26Cited by
3References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 28, 1980 |
| Grant date | Nov 2, 1982 |
| Priority date | — |
| Expiry date | Jul 28, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12764
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A sacrificial brazing fin stock for use in an aluminum base alloy heat exchanger comprises an aluminum base alloy core having a grain size of 100 .mu.m or more and consisting essentially of 0.5 to 2 wt. % manganese plus iron, said manganese being more than iron, 0.1 to 0.7 wt. % zinc, 0.001 to less than 0.02 wt. % tin, and balance aluminum and a cladding consisting of one material selected from an Al-Si base alloy and an Al-Si-Mg base alloy. The above fin stock protected a main tube of the heat exchanger from a pitting corrosion and led to a greatly expanded use of the aluminum base alloy heat exchanger.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.