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How to Dip metal parts surface pre-treatment

Views:8     Author:Site Editor     Publish Time: 2019-10-30      Origin:Site Inquire

Polyethylene thermoplastic powder coating, also is  known as polyethylene resin powder coating, is the high-pressure polyethylene (LDPE) as the based material, then adding a variety of functional additives, dip coating layer has excellent chemical resistance and color processing, aging resistance, impact resistance, bending, acid, salt spray corrosion resistant and has more better performance surface decoration. 

Second, the conventional construction conditions: 

1, the part rust, to the oil treatment, heated to 350 ± 50 ° C (it’s rely on the heating temperature specific heat capacity of the part size, the test may be). 

2, the part is immersed in the fluidized bed, 10-12 seconds, and heated to 150 ° C-230 ° C, remove the surface leveling, and finally cooled to. Another molding plastic powder without bed. 

Three main purposes: 

Widely used within the grill surface coating highways fence, railways fence, parks, gardens and other guardrail, bicycle baskets, shelves, racks, refrigerator. 

Four characteristics: 

Layer thicker in 0.5-3MM, has a strong impact resistance, but also a more longer period of protection. 

Technical parameters: fineness: 50 mesh -70 mesh  

The density: 0.92-0.94 g / cc.


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