Aluminum cannot be brazed without flux.
For a long time, the flux used for aluminum alloy brazing has been a highly active but highly corrosive chlorate mixture. After brazing, it needs to be soaked and brushed with cold / hot water, and even further treated with chemicals. Reprocessing costs and potential quality risks are among the potential additional costs.
Under the trend of increasingly pursuing environmental protection at the national and even global levels, this process is increasingly being replaced by non-corrosive fluxes and brazing pastes.
On the other hand, even if the relative corrosive flux has certain advantages, relatively speaking, the process of non-corrosive flux paste + solid welding wire / welding ring takes more process steps, long time, uneven additional flux, which is not conducive to automated operation. Therefore, it has being further replaced by the flux-cored wire process.
However, in consideration of the needs and positioning of different customers from different countries, while providing flux-cored wires / flux-cored rings, we also provide solid wires / solid rings and their matching non-corrosive flux pastes.
Thanks to the use of high-quality raw materials and formulas, our brazing pastes have a white appearance and a uniform sticking wire. There will be no obvious blackening and charring residue during brazing.
With special formular, the brazing paste could be also used to work on AA6063 or even AA6061, which contains Mg, normally quite difficult to braze with.
