What process is the dip powder used for?

2022/09/16

What process is dipping powder used in?

Plastic dipping powder, polyethylene thermoplastic powder coating, also known as polyethylene powder coating, is based on high-pressure polyethylene (LDPE), adding a variety of functional additives, and the anti-corrosion powder coating produced by processing is colored. The coating layer has excellent Chemical resistance, aging resistance, impact resistance, bending resistance, acid resistance, salt spray corrosion resistance, and good surface decoration performance. Polyethylene thermoplastic powder coatings, also known as polyethylene powder coatings, are based on high-pressure polyethylene (LDPE) and added a variety of functional additives. After processing, the anti-corrosion powder coatings are colored. The coating layer has excellent chemical resistance, Aging resistance, impact resistance, bending resistance, acid resistance, salt spray corrosion resistance, and good surface decoration performance.

Conventional construction conditions for dipping powder: After the workpiece is rust-proofed and oiled, heated to 350±50°C (the specific heating temperature depends on the heat capacity of the workpiece and is determined by tests). Immerse the workpiece in the fluidized bed, heat to 150°C-230°C, heat for 10-12 seconds, remove the surface and flatten it, and cool. Another molding powder that does not require a fluidized bed.

The main use of the impregnating powder: The impregnating powder is widely used in the surface coating of road, railway, park, courtyard and other guardrails, bicycle baskets, bookshelves, clothes hangers, and refrigerator grates. The function of impregnating powder: the thickness of the shoe layer is 0.5-3mm, the impact resistance is strong, and the protection period is longer. Plastic spraying refers to a surface treatment method of spraying plastic powder on the surface of a product. Plastic spraying is also what we often call electrostatic powder spraying. It uses the electrostatic attack device of the guardrail anti-theft bolt to charge the plastic powder, adsorb it on the surface of the iron plate, and then bake it at 180 ~ 220 ℃ to make the powder melt and adhere to the metal surface. Plastic products are mostly used for indoor boxes, paint film smoothing or matte effect. The main powders are acrylic powder, polyester powder and so on. Dip molding is a plastic coating process, that is, plastic is coated on the guardrail. Dip molding is to uniformly spray plastic powder on the metal by heating the metal to form a plastic film, or heat the plastic dipping liquid into the metal parts for cooling coating. Plastic on the surface of the guardrail. This process is widely used because it does not require molds, has low processing costs, is simple to form, and can process various shapes. But guardrail products are all powder-impregnated plastics. According to whether heating is required, it is divided into hot-dip and cold-dip.

According to the original data of dipping, it can be divided into liquid dipping and powder dipping. Dip plastic alias is also known as hot dip, hot compress, hot compress. Dip (coated plastic) is a plastic coating process. According to the different raw materials used to impregnate plastics, it can be divided into liquid impregnated (coated) plastics and powder impregnated (coated) plastics. Most of the liquid dipping processes use thermoplastic liquid dipping. The thermoplastic coating has the characteristics of preheating, softening, and cooling to solidify into a film. It mainly uses a physical melting plastic film-forming process, and the processing and production are relatively simple. The typical commonly used is polyvinyl chloride (PVC) impregnating liquid, which is a synthetic raw material mixed in strict accordance with the ratio of polyvinyl chloride (PVC) and more than 10 advanced additives and auxiliaries. It is refined by precision mixing and reaction. .

Key words:

Dip powder,Shanghai nylon material

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