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Advantages and Waste Factors of Powder Spraying
Posted: 2014-08-26 03:19:29 Hits: 1121
Electrostatic powder coating method is to use the induction effect of high voltage electric field, making the powder coating and the coated substance received the induction bring opposite electric charge on each other. Next, it brings the charged powder coating to adsorb the coated substance with opposite charges. Then, powder coating gets film coating method after melting, flowing, baking and solidifying.
The appearance of aluminum alloy extrusion profile which has not been processed surface treatment is single. And it is easy to corrosion in the humid atmosphere. Thus, aluminium profile generally needs to conduct surface treatment. The powder coating is a main trend in the development of aluminium profile at the present stage.
The powder spraying has the following advantages: (1) Abundant surface color, gentle texture. (2) Good corrosion resistance and it can not easily be polluted. (3) Good weather ability, and its shelf life reaches more than 10 years. (4) Sturdy and durable powder coating, simple production. Therefore, the powder coating gets rapid development on aluminium profile application especially in the economic well-developed Yangtze River Delta and Pearl River Delta region. The market share of aluminium profile powder coating has exceeded 60%.
With the implementation of the national energy conservation and emission reduction policy, as well as the improvement of the aluminum enterprises consciousness for cost control, reducing powder consumption in aluminium profile coating powder is one of the important directions of energy conservation and emissions reduction and cost reduction.
There are a number of factors influencing the powder consumption when spraying aluminium profile. The following two ways are main aspects. On the one hand, it is related to the nature of the powder coating itself, on the other hand, it goes hand in hand with the powder spraying process, such as spray process conditions, the workpiece spacing, equipment application status, the employee's operation level and so on.