The coating process is a crucial step in the production of colored aluminum coils, which directly affects the final coating quality and product durability.
Therefore, the coating process is very strict. With the continuous improvement of coating equipment and the development and utilization of new coatings, the production of coated aluminum coils has become more mature, and processing costs are also decreasing. Coated aluminum coils have therefore experienced rapid development.
So what is the specific process of coating aluminum coils? Generally, the production process of coil coating has 5 steps, namely coil input, cleaning and chemical treatment, painting, curing, and finished product output. The process layout and equipment composition may vary in different situations, but the basic parts are the same.
1、 Raw material roll input refers to the continuous unwinding of the coil by the unwinding machine to ensure the continuous and stable input of the coil into the production line. Some adopt a cross rotating beam type winding machine, while others adopt a dual front and rear alternating unwinding machine, in order to supply the coil in a timely manner;
2、 Surface cleaning and chemical treatment are necessary to clean the upper and lower surfaces of the aluminum coil and perform chemical pretreatment to ensure that the paint can adhere firmly;
三、是涂漆,一條生產(chǎn)線至少有兩個(gè)以上輥涂機(jī),保證面漆和底漆兩層涂色;
3、 It is painting, and a production line should have at least two or more roller coating machines to ensure that the topcoat and primer are painted in two layers;
4、 It refers to the curing of the paint layer, which means that the tape roll that has just been painted should be fixed before contacting the next roller surface to avoid mutual adhesion and damage. Generally speaking, it includes at least two curing boxes;
五、是成品輸出,保證生產(chǎn)線速度與成品卷轉(zhuǎn)移同步。
5、 It is the output of finished products, ensuring that the production line speed is synchronized with the transfer of finished rolls.
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