Kemet Share | Aluminum Profile Surface Treatment: Powder Coating

Release time:

2021-12-29

China's spraying process basically exists in the first and second industries, especially the manufacturing and construction industries in the second industry. The construction industry is the largest field of coating application, and the application of architectural coatings in exterior wall decoration accounts for about 60%.

China's spraying process basically exists in the first and second industries, especially the manufacturing and construction industries in the second industry. The construction industry is the largest field of coating application, and the application of architectural coatings in exterior wall decoration accounts for about 60%.

powder spraying is to spray a powder coating on the surface of aluminum alloy substrate by electrostatic action. The coating adhesion, weather resistance, resistance to peeling ability, anti-ultraviolet strong, dense coating, is the general aluminum surface treatment can not be compared, spraying effect in mechanical strength, aging resistance and other aspects is better than the painting process, the cost is also under the same effect of painting.

powder spraying process adopts green environmental protection technology, does not contain solvents and volatile toxic substances, does not pollute the environment, the powder can be recycled, with energy saving, safety, less pollution and other characteristics, powder spraying aluminum profiles in normal conditions The service life is 30 years. The surface coating in 5-10 years do not fade, do not change color, do not crack, uniform film thickness, its weather resistance and corrosion resistance are better than ordinary aluminum.

Powder Spraying Process :
Vertical (Horizontal) Spraying Process Flow Chart :
Feeding → Pretreatment (Chromization) → Spraying → Curing → Falling Frame
Chromization Purpose: Generate a Fine and Stable Chromization Film on Aluminum Surface. This film has a certain wear resistance, corrosion resistance and good adsorption capacity, so that the coating in the coating, improve its adhesion.
curing: powder spraying after high temperature baking leveling curing, become the final coating with different effects; In powder spraying, the baking curing temperature and time of powder coating play a decisive role in the curing performance of the coating film. Therefore, it is necessary to go through many tests and classify the sprayed objects reasonably to determine the number and arrangement of the pendant, as well as the corresponding baking curing temperature and time, in order to ensure the quality of the coated products. Powder with different proportions has different visual effects to meet the personalized needs of customers. Powder spraying aluminum profiles with rich colors, uniform colors and high cost performance are increasingly widely used in China. Fashion and personalized spraying applications are increasing day by day. Powder electrostatic spraying aluminum profiles can be constructed according to the spatial relationship among wall, aluminum and glass, and color matching and harmony can be used to construct various decorative effects. The variety of colors and appearance effects of powder spraying can meet the construction needs of buildings with different styles and provide designers with a broader design space. 19

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