Coating process: powder coating process

Key tips: 1 Powder coating equipment: It is composed of powder feeder, electrostatic generator, electrostatic spraying gun, spraying gun, powder recovery system, drying room, etc 2 Powder coating method: Powder coating methods include flame spraying, fluidized bed, electrostatic fluidized bed, electrostatic spraying and powder electrophoresis (1) Flame jet method The quality of flame spray coating is poor, and the resin decomposes at high temperature, so it is only used in the field construction of anticorrosive coating for large facilities (2) Fluidized bed method The fluidized bed method is to preheat the workpiece to a higher level of powder melting Which is the price of Dajin diatom mud Recommended brief introduction: which is the price of Dajin diatom mud? How to buy genuine diatom mud? Guangdong diatom mud agent suggests placing a basin of cold water in the air conditioning room, so that the diatom mud wall can breathe effectively The feature of the breathing wall is obvious When the indoor air is dry, the diatom mud wall will release the absorbed water quickly Put it out to help regulate the indoor dry humidity It is suggested to place a basin of cold water in the air conditioning room, so that the wall of diatom mud can breathe effectively The feature of the wall that can breathe is obvious When the indoor air is relatively dry, the wall of diatom mud will absorb the water Coating home news: 1 Powder coating equipment: composed of powder feeder, electrostatic generator, electrostatic spraying gun, spraying gun, powder recycling system, drying room, etc 2 Powder coating methods: powder coating methods include flame spraying, fluidized bed, electrostatic fluidized bed, electrostatic spraying and powder electrophoresis (1) The quality of the coating film is poor and the resin decomposes at high temperature, so it is only used in the field construction of anticorrosive coating for large facilities (2) The fluidized bed method is to preheat the workpiece to a temperature higher than the powder melting temperature by more than 20 ℃ (generally higher than 20 ℃ ~ 50 ℃), and then immerse it in the fluidized bed to make the powder partially melt and adhere to the surface, and form a complete coating after heating and fusion (3) The electrostatic fluidized bed (esfb) is a kind of electrostatic adsorption method, which can absorb the powder in the fluidized bed The workpiece does not need preheating, and can form a complete thin coating, but it is also only suitable for the coating of small parts (4) Electrostatic spraying is the most widely used method of powder coating, which can form a complete coating of 50-100 μ m without preheating, and has good appearance quality and high coating efficiency When electrostatic spraying is used, the characteristics of the powder will affect the process quality The particle size of the powder is fine, the fluidity of the powder is poor, it is easy to be blocked in the equipment, the coating property of the powder is improved and the powder can be thinly coated, but the drift of the dust is also increased The conductivity of powder coating affects the charge rate and adhesion rate of the powder The bulk resistivity is generally 1010-1014 (5) The powder electrophoresis method is to disperse the resin powder in the electrophoretic paint and adhere to the workpiece surface according to the electrophoretic coating method When baking, the resin powder and the electrophoretic paint base material are integrated to form the coating Powder electrophoretic method can avoid the dust in powder coating It has the advantages of short deposition time, high production efficiency, uniform film thickness and easy to adjust 3 Application scope of powder coating: powder coating is applicable to large-scale flow production, small and medium-sized products of various shapes, products requiring coating surface protection and high decorative performance, such as light industry, machinery, electrical appliances, instruments and meters, clocks and watches, vehicles, aviation, etc Home of coatings is specialized in coatings, diatom mud, paint coating, coating technology, fire retardant coating news and coating, diatom mud, paint coating, coating technology, fire retardant coating decoration knowledge and decoration renderings,