초록 ▼

There is provided an aluminum alloy brazing sheet having an improved brazability than in the related art while keeping the post-braze strength, workability, corrosion resistance, and the like at respective prescribed or higher levels. An aluminum alloy brazing sheet has a two-layered structure in wh

There is provided an aluminum alloy brazing sheet having an improved brazability than in the related art while keeping the post-braze strength, workability, corrosion resistance, and the like at respective prescribed or higher levels. An aluminum alloy brazing sheet has a two-layered structure in which on one side of a core material, a brazing material is provided. The core material contains Si: 0.6 to 1.0 mass %, Cu: 0.6 to 1.0 mass %, Mn: 0.7 to 1.8 mass %, Mg: 0.1 to 0.7 mass %, and Ti: 0.06 to 0.20 mass %, and the balance including Al and inevitable impurities. The brazing material includes an aluminum alloy containing Si: 3.0 to 12.0 mass %, the gage of the aluminum alloy brazing sheet is 0.6 to 1.4 mm, and the area ratio of a {001} plane in the core material surface is 0.3 or more.

대표청구항 ▼

1. An aluminum alloy brazing sheet of a two-layered structure, comprising: a core material; and a brazing material provided on one side of the core material, the core material comprising Si: 0.6 to 1.0 mass %, Cu: 0.6 to 1.0 mass %, Mn: 0.7 to 1.8 mass %, Mg: 0.1 to 0.7 mass %, and Ti: 0.06 to 0.20

1. An aluminum alloy brazing sheet of a two-layered structure, comprising: a core material; and a brazing material provided on one side of the core material, the core material comprising Si: 0.6 to 1.0 mass %, Cu: 0.6 to 1.0 mass %, Mn: 0.7 to 1.8 mass %, Mg: 0.1 to 0.7 mass %, and Ti: 0.06 to 0.20 mass %, and the balance including Al and inevitable impurities,the brazing material comprising an aluminum alloy comprising Si: 3.0 to 12.0 mass %,the gage of the aluminum alloy brazing sheet being 0.6 to 1.4 mm, andthe area ratio of a (001) plane in the core material surface being 0.3 or more. 2. The aluminum alloy brazing sheet according to claim 1, wherein the core material further comprises at least one of Cr: 0.02 to 0.25 mass % and Zr: 0.02 to 0.25 mass %. 3. The aluminum alloy brazing sheet according to claim 1, wherein the core material comprises Si: 0.65 to 0.97 mass %. 4. The aluminum alloy brazing sheet according to claim 1, wherein the core material comprises Si: 0.70 to 0.93 mass %. 5. The aluminum alloy brazing sheet according to claim 1, wherein the core material comprises Cu: 0.62 to 0.96 mass %. 6. The aluminum alloy brazing sheet according to claim 1, wherein the core material comprises Cu: 0.70 to 0.89 mass %. 7. The aluminum alloy brazing sheet according to claim 1, wherein the core material comprises Mn: 0.9 to 1.70 mass %. 8. The aluminum alloy brazing sheet according to claim 1, wherein the core material comprises Mn: 1.0 to 1.60 mass %. 9. The aluminum alloy brazing sheet according to claim 1, wherein the core material comprises Mg: 0.12 to 0.68 mass %. 10. The aluminum alloy brazing sheet according to claim 1, wherein the core material comprises Mg: 0.21 to 0.45 mass %. 11. The aluminum alloy brazing sheet according to claim 1, wherein the core material comprises Ti: 0.08 to 0.17 mass %. 12. The aluminum alloy brazing sheet according to claim 1, wherein the core material comprises Ti: 0.12 to 0.16 mass %. 13. The aluminum alloy brazing sheet according to claim 1, wherein the gage of the aluminum alloy brazing sheet is 0.7 to 1.1. 14. The aluminum alloy brazing sheet according to claim 1, wherein the brazing material comprises Si: 3.5 to 10 mass %. 15. The aluminum alloy brazing sheet according to claim 1, wherein the brazing material comprises Si: 3.5 to 8 mass %.