초록 ▼

Aluminum brazing alloy composition is (in wt. %): Mn 0.7-1.5, Cu 0.5-1.0, Fe not more than 0.4, Si not more than 0.15, Mg up to 0.8, V and/or Cr up to 0.3, Ti up to 0.1, others up to 0.05 each, 0.15 total, balance A1 of at least commercial purity. Improved properties include: post-brazed strength an

Aluminum brazing alloy composition is (in wt. %): Mn 0.7-1.5, Cu 0.5-1.0, Fe not more than 0.4, Si not more than 0.15, Mg up to 0.8, V and/or Cr up to 0.3, Ti up to 0.1, others up to 0.05 each, 0.15 total, balance A1 of at least commercial purity. Improved properties include: post-brazed strength and sag resistance; corrosion resistance; ability to withstand interannealing and some homogenization.

대표청구항 ▼

[ We claim:] [1.] Brazing sheet comprising a core and a cladding present on at least one side of the core, wherein the core is an alloy of composition (in wt %):______________________________________ Mn 0.7 to about 1.5 Cu 0.5-1.0 Fe not more than 0.4 Si not more than 0.15 Mg up to 0.8 V and/or Cr u

[ We claim:] [1.] Brazing sheet comprising a core and a cladding present on at least one side of the core, wherein the core is an alloy of composition (in wt %):______________________________________ Mn 0.7 to about 1.5 Cu 0.5-1.0 Fe not more than 0.4 Si not more than 0.15 Mg up to 0.8 V and/or Cr up to 0.3 Ti up to 0.1 Others up to 0.05 each, 0.15 total Al balance ______________________________________and is produced from an ingot which is preheated to a temperature below 540.degree. C. such that there is present in the core a .tau. phase precipitate of fine AlMnCu particles up to 2 .mu.m long, and wherein the cladding is an Al-based brazing alloy containing Si as the main alloying ingredient.