The aluminum alloy pressure casting should solve the problem of painting and paint

　　Because the aluminum alloy material casting performance is relatively strong, it is widely used in the fields of major consumer electronics products and the automotive field. Because the surface of aluminum alloy pressure casting is rough, some appearance parts are often used for paint surface treatment. Often often Some customers asked us how to solve the paint of paint products, which is actually not difficult, so let's talk about solving the problem of painting paint paint!

　　The paint adhesion in the paint of aluminum alloy pressure castings refers to the ability to combine the paint film between the paint film and the surface of the coating or the coating. Adhesion is an important technical indicator in the paint, and it is the prerequisite for the paint film to have a series of performance. A good adhesion can meet the needs and performance of the surface treatment; the paint film with poor adhesion is easy to crack and fall off, affecting the quality of the painting.

　　The main reasons for the paint of paint paint are:

　　The aluminum alloy pressure casting material is not handled in place, the workpiece is oil, and the paint is sprayed directly

　　The aluminum alloy pressure casting material was not processed in place before, resulting in a large area of paint fall off, poor adhesion

　　It is not constructed according to the paint ratio and baking time. Double component paint, excessive addition of curing agents: increased hardness, but it will cause the paint film to be too hard and crispy. Bad phenomenon such as bubbles and pinholes appear on the surface of the paint film. Too little curing agent: It will cause paint films for a long time, poor hardness, soft paint film, and prone to scratch.

　　Effective way to ensure paint adhesion:

　　First ensure that the aluminum alloy pressure is processed before the casting, no rust, no acid and alkali, no dust and dirt;

　　Choosing the right paint is critical; the right process and spraying environment, temperature and humidity control, spraying film thick, etc.;

　　If it is baking, baking is important, the temperature is height, and the length of time will affect the adhesion;

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