Process for producing aluminium or aluminium alloy with a coating and structural parts provided with coating of aluminium and magnesium alloy

摘要

Aluminum-silicon alloy coating production on aluminum or aluminum alloy involves applying an alkali metal fluorosilicate, namely potassium and/or cesium fluorosilicate, and heating. Independent claims are also included for the following: (i) an aluminum or aluminum alloy component coated with an aluminum-silicon alloy by the above process; (ii) a method of joining aluminum or aluminum alloy components by carrying out the above process and brazing optionally with soldering flux addition; and (iii) a mixture comprising 99.5-85 wt.% alkali metal fluorosilicate and 0.5-15 wt.% alkali metal fluoroaluminate.