Plastic Dipping
Dipping is a kind of plastic coating process, dipping according to whether the need for heating that hot dipping and cold dipping, according to the dipping of raw materials can be divided into liquid dipping and powder dipping, the corresponding processing is divided into liquid dipping processing and powder dipping processing.
The process flow is as follows:
The workpiece is preheated to above the melting point of the powder coating after degreasing, and the powder will adhere evenly when the metal is immersed in the fluidized bed, and then the plasticized polymer cross-linking is leveled into a steel-plastic composite product. Thermoplastic powder coating has the characteristics of preheating and softening, and can solidify into a film after cooling, mainly in the process of physical melting and plasticizing into a film. Most of the metal dipping process uses thermoplastic plastic powder, typical of polyethylene, polyvinyl chloride and polyvinyl chloride, suitable for non-toxic coating, for general decoration, anti-corrosion, wear-resistant coating.
dip plastic process:
Pre-process treatment & rarr; Upper workpiece & rarr; Preheating (preheating 320-370 15 minutes) & rarr; Dip plastic (report moving, remove residual powder) & rarr; Curing (180-200 10 minutes) & rarr; Lower workpiece.
Dipping is a heating process, metal preheating, dipping, curing. During immersion, the heated metal adheres to the surrounding material. The hotter the metal, the longer the immersion time and the thicker the coating thickness. Naturally, the dip and the profile are the key to determining how much to stick to the plastisol. After dipping can produce amazing shape.
The material of dipping is all kinds of plastic coating powder.
Immersed powder 1, civilian powder is mainly used for clothing, bicycles, car baskets, kitchen utensils and other coating, has a good leveling, gloss;
2, engineering powder used for highway and railway guardrail, municipal engineering, instrumentation, supermarket grid, refrigerator shelves, cables, miscellaneous goods, such as coating = installation, durability, corrosion resistance;