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US 2017/0304956 A1Published application
Aluminum alloy brazing sheet and brazing method
AssigneeUacj Corporation
InventorsYasunaga Itoh, Tomoki Yamayoshi
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AssigneeUacj Corporation
InventorsYasunaga Itoh, Tomoki Yamayoshi
Estimating the term…
An aluminum alloy brazing sheet exhibits excellent brazability by effectively weakening an oxide film formed on the surface of a filler metal. The aluminum alloy brazing sheet includes a core material and a filler metal, and is used to braze aluminum in an inert gas atmosphere or in vacuum, the core material including aluminum or an aluminum alloy, the filler metal including 6 to 13 mass % of Si, with the balance being Al and unavoidable impurities, and one side or each side of the core material being clad with the filler metal, wherein the core material is clad with the filler metal in a state in which a sheet material is interposed between the core material and the filler metal, the sheet material including one element, or two or more elements, among 0.05 mass % or more of Li, 0.05 mass % or more of Be, 0.05 mass % or more of Ba, and 0.05 mass % or more of Ca, with the balance being Al and unavoidable impurities.
An aluminum alloy brazing sheet comprising a core material and a filler metal, and being used to braze aluminum in an inert gas atmosphere or in vacuum, the core material comprising aluminum or an aluminum alloy, the filler metal comprising 6 to 13 mass % of Si, with the balance being Al and unavoidable impurities, and one side or each side of the core material being clad with the filler metal, wherein the core material is clad with the filler metal in a state in which a sheet material is interposed between the core material and the filler metal, the sheet material comprising one element, or two or more elements, among 0.05 mass % or more of Li, 0.05 mass % or more of Be, 0.05 mass % or more of Ba, and 0.05 mass % or more of Ca, with the balance being Al and unavoidable impurities.
An aluminum alloy brazing sheet comprising a core material and a filler metal, and being used to braze aluminum in an inert gas atmosphere or in vacuum, the core material comprising aluminum or an aluminum alloy, the filler metal comprising 6 to 13 mass % of Si, with the balance being Al and unavoidable impurities, and one side or each side of the core material being clad with the filler metal, wherein the core material is clad with the filler metal in a state in which a sheet material and a sacrificial anode material are interposed between the core material and the filler metal so that the core material, the sacrificial anode material, the sheet material, and the filler metal are situated in this order, the sheet material comprising one element, or two or more elements, among 0.05 mass % or more of Li, 0.05 mass % or more of Be, 0.05 mass % or more of Ba, and 0.05 mass % or more of Ca, with the balance being Al and unavoidable impurities, and the sacrificial anode material comprising 0.9 to 6 mass % of Zn, with the balance being Al and unavoidable impurities.
An aluminum alloy brazing sheet comprising a core material, a filler metal, and a sacrificial anode material, and being used to braze aluminum in an inert gas atmosphere or in vacuum, the core material comprising aluminum or an aluminum alloy, the filler metal comprising 6 to 13 mass % of Si, with the balance being Al and unavoidable impurities, the sacrificial anode material comprising 0.9 to 6 mass % of Zn, with the balance being Al and unavoidable impurities, one side of the core material being clad with the filler metal, and the other side of the core material being clad with the sacrificial anode material, wherein the core material is clad with the filler metal in a state in which a sheet material is interposed between the core material and the filler metal, the sheet material comprising one element, or two or more elements, among 0.05 mass % or more of Li, 0.05 mass % or more of Be, 0.05 mass % or more of Ba, and 0.05 mass % or more of Ca, with the balance being Al and unavoidable impurities.
Dependencies are inferred from the claim text.