At present, aluminum alloys are widely used in a wide range of applications. We will also see many aluminum alloy castings on the market. If they are used in the production process or improperly used, oxidation will easily occur. Generally, yellow spots and blackening will appear on the surface of aluminum alloys. The following Let's take a look at the oxidation phenomenon of aluminum alloy die castings.

 

  Because aluminum itself is an active metal element, it is easy to produce chemical reactions in the air, and aluminum alloy castings are also alloy materials with relatively high aluminum content. The melting method is adopted, and there are small gaps between the grains, and corrosive gases (including those containing carbon dioxide) Moisture) can easily invade along this gap, causing rot. After being corroded, the oxides of aluminum appear in the form of powdery fibers, and the color of the oxides of elements such as copper in the aluminum alloy makes it look moldy. Therefore, in view of the oxidation phenomenon on the surface of aluminum alloy die-casting, Huayin die-casting will take certain measures to control it, such as doing some surface treatment, baking paint, electrophoretic passivation, to solve the oxidation problem of aluminum alloy die-casting parts, and aluminum alloy die-casting parts in During storage, it should also be placed in a dry and cool environment so that it is not easy to be oxidized.