Considerations for the selection of pretreatment equipment for metal coating
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Last Update: 2020-03-05
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Source: Internet
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Author: User
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There are many types of pre-treatment equipment for coating, including intermittent progressive type and continuous through type according to the movement form of workpiece According to the contact mode of treatment liquid and workpiece, there are spray type, immersion type and spray immersion combination type From the function classification of the equipment, there are one room with multiple sequences and one room with one sequence For specific workpieces, when choosing the type of coating pretreatment equipment, there are many factors that need to be considered comprehensively Common factors are as follows: ① workpieces with small production batch are suitable for batch type one room multi process or manual operation pretreatment equipment; workpieces with large production batch can adopt continuous pass type pretreatment equipment ② the shape of workpieces can be spray type equipment for workpieces with simple shape; for workpieces with complicated box structure, such as car body, in order to make the inner surface and interlayer be treated, immersion or spray immersion combined pretreatment equipment can be used ③ if the space of the production site is limited, the equipment of one room and multi sequence or the pre-treatment equipment of several in one can be considered ④ coating quality requirements for products with high coating quality requirements, such as automobile body, can choose phosphating and degreasing combined with immersion and spray; immersion surface adjusting equipment
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