MATERIAL IN STRIP FORM WITH EXCELLENT CORROSION RESISTANCE AFTER HIGH TEMPERATURE SOLDERING Russian patent published in 2017 - IPC B32B15/01 B23K35/02 C22C21/14 C22C21/16 C22F1/05 

FIELD: metallurgy.

SUBSTANCE: corrosion-resistant strip for manufacturing soldered products comprises a core made of aluminium-based alloy, an intermediate layer on the core and optionally an Al-Si-based cladding layer. The intermediate layer has the following content of components, wt %: Si ≤0.9, Fe ≤0.7, Cu ≤0.5, Mn 0.5-1.8, Mg ≤0.7, Zn ≤4.0, Ni ≤1.5, elements selected from groups IVb, Vb and/or VIb of the Periodic Table, ≤0.3 each and ≤0.5 in total, unavoidable impurities ≤0.05 each and ≤0.15 intotal, Al is the rest, wherein the composition of the core alloy and the composition of the intermediate layer alloy is selected to provide more inert core, than the intermediate layer after the high-temperature soldering, and the volume fraction of the texture component is at least 30%.

EFFECT: obtaining a strip having high corrosion resistance after soldering.

28 cl, 5 ex, 5 tbl, 7 dwg