A heat exchanger, includes a heat exchange pipe unit and a fin unit, the heat exchange pipe unit includes a refrigerant input pipe, a heat exchange pipe assembly and a refrigerant output pipe; the refrigerant input pipe is connected to one end of the heat exchange pipe assembly; the refrigerant output pipe is connected to the other end of the heat exchange pipe assembly; the fin unit is fixedly arranged outside of the heat exchange pipe assembly; the heat exchange pipe assembly and the fin unit are made of aluminum alloy; and the corrosion potential of the aluminum alloy which forms at least a part of the heat exchange pipe assembly is greater than the corrosion potential of the aluminum alloy which forms the remaining part of the heat exchange pipe assembly.

A method for producing an aluminum alloy clad material having a core material and a sacrificial anode material clad on at least one surface of the core material, wherein the core material comprises an aluminum alloy comprising 0.050 to 1.5 mass % (referred to as “%” below) Si, 0.050 to 2.0% Fe and 0.50 to 2.00% Mn; the sacrificial anode material includes an aluminum alloy containing 0.50 to 8.00% Zn, 0.05 to 1.50% Si and 0.050 to 2.00% Fe; the grain size of the sacrificial anode material is 60 μm or more; and a ratio R1/R2 is 0.30 or less, wherein R1 (μm) is a grain size in a thickness direction and R2 (μm) is a grain size in a rolling direction in a cross section of the core material along the rolling direction; a production method thereof; and a heat exchanger using the clad.

A method for producing an aluminum alloy clad material having a core material and a sacrificial anode material clad on at least one surface of the core material, wherein the core material comprises an aluminum alloy comprising 0.050 to 1.5 mass % (referred to as “%” below) Si, 0.050 to 2.0% Fe and 0.50 to 2.00% Mn; the sacrificial anode material includes an aluminum alloy containing 0.50 to 8.00% Zn, 0.05 to 1.50% Si and 0.050 to 2.00% Fe; the grain size of the sacrificial anode material is 60 μm or more; and a ratio R1/R2 is 0.30 or less, wherein R1 (μm) is a grain size in a thickness direction and R2 (μm) is a grain size in a rolling direction in a cross section of the core material along the rolling direction; a production method thereof; and a heat exchanger using the clad.

A method for coating a motor vehicle part includes coating and subsequently painting. In the coating, a motor vehicle bodyshell part is coated with a metallic zinc coat as cathodic corrosion protection. In the subsequent painting, the coated motor vehicle bodyshell part is painted. The motor vehicle bodyshell part is chemically polished and/or electrochemically polished prior to the coating with the metallic zinc coat.

A method for coating a motor vehicle part includes coating and subsequently painting. In the coating, a motor vehicle bodyshell part is coated with a metallic zinc coat as cathodic corrosion protection. In the subsequent painting, the coated motor vehicle bodyshell part is painted. The motor vehicle bodyshell part is chemically polished and/or electrochemically polished prior to the coating with the metallic zinc coat.

A corrosion resistant article including an aluminum substrate and a corrosion-inhibiting cerium based corrosion inhibitor corrosion inhibiting additive on the aluminum substrate, the corrosion inhibiting additive comprising an anodic corrosion inhibitor and a cathodic corrosion inhibitor, the anodic corrosion inhibitor greater than 25 wt % of the total inhibitor.

A corrosion resistant article including an aluminum substrate and a corrosion-inhibiting cerium based corrosion inhibitor corrosion inhibiting additive on the aluminum substrate, the corrosion inhibiting additive comprising an anodic corrosion inhibitor and a cathodic corrosion inhibitor, the anodic corrosion inhibitor greater than 25 wt % of the total inhibitor.

An anticorrosion coating and an article coated with an anticorrosion coating, especially for use in an aircraft, and a method of producing a coated article and a vehicle, especially an aircraft, including an anticorrosion coating or at least one such coated article. An anticorrosion coating includes an aluminum alloy having 0.03-0.5% by weight of tin. A coated article produced at least partly from a material and having at least partly been coated with the anticorrosion coating including an aluminum alloy having 0.03-0.5% by weight of tin. A method of producing the anticorrosion coating is also disclosed.

An anticorrosion coating and an article coated with an anticorrosion coating, especially for use in an aircraft, and a method of producing a coated article and a vehicle, especially an aircraft, including an anticorrosion coating or at least one such coated article. An anticorrosion coating includes an aluminum alloy having 0.03-0.5% by weight of tin. A coated article produced at least partly from a material and having at least partly been coated with the anticorrosion coating including an aluminum alloy having 0.03-0.5% by weight of tin. A method of producing the anticorrosion coating is also disclosed.

A brazing sheet brazing suitable for brazing performed in an inert gas atmosphere or in a vacuum without using a flux includes a filler layered on a core. The core is composed of an aluminum alloy containing 0.20-1.3 mass % Mg. The filler is composed of an aluminum alloy containing Si: 6.0-13.0 mass % Si, 0.0040-0.070 mass % Bi, and 0.051-0.10 mass % Mg.