Coating process: fluorocarbon resin spraying process

Core tip: the spraying process mainly includes three processes: pretreatment (degreasing, pickling, chromizing), spraying and curing (baking) According to the needs of material coating, two coats, three coats or four coats can be selected Two coats (primer + finish); three coats (primer + finish + topcoat); four coats (primer + barrier + topcoat + topcoat + topcoat) Generally, the thickness of the second coating is ≥ 30 μ m ± 5 μ m, and that of the third coating is ≥ 40 μ m ± 5 μ M Pretreatment: before spraying the substrate, the surface of the workpiece shall be 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: the spraying process mainly includes three processes: pretreatment (degreasing, pickling, chrome), spraying and curing (baking) According to the needs of material coating, two coats, three coats or four coats can be selected Two coats (primer + finish); three coats (primer + finish + topcoat); four coats (primer + barrier + topcoat + topcoat + topcoat) Generally, the thickness of the second coating is ≥ 30 μ m ± 5 μ m, and that of the third coating is ≥ 40 μ m ± 5 μ M Pretreatment: before spraying the substrate, the surface of the workpiece shall be degreased, decontaminated and chemically treated to produce a chrome film, increase the adhesion and oxidation resistance of the coating and the metal surface, which is conducive to extending the service life of the paint film Primer coating: as the primer coating of closed substrate, its function is to improve the impermeability of the coating, enhance the protection of the substrate, stabilize the metal surface layer, strengthen the adhesion between the top coat and the metal surface, and ensure the color uniformity of the top coat The thickness of the paint layer is generally 5-10 μ M Finish coating: the finish coating is the key layer of the spraying layer, which is to provide the decorative color required by the base material, to make the appearance of aluminum meet the design requirements, and to protect the metal surface from the erosion of the external environment atmosphere, acid rain and pollution, and to prevent the penetration of ultraviolet rays Greatly enhance the anti-aging ability The top coat is the thickest paint layer in the spraying, and the thickness of the paint layer is generally 20~30 microns Varnish coating: varnish coating is also called varnish coating Its main purpose is to effectively enhance the resistance of the paint layer to external erosion, protect the finish coating, increase the metallic luster of the finish color, make the appearance more colorful and dazzling The thickness of the coating is generally 5-10 microns Curing treatment: three spray coating generally requires secondary curing, commonly known as three coating and two baking The substrate enters the curing furnace for treatment The curing temperature is generally between 180 ℃ and 250 ℃, and the curing time is 15-25 minutes Different fluorocarbon coating manufacturers will provide the best temperature and time according to their own coating According to their own experience, some fluorocarbon spraying plants change the two-time curing to one-time curing 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,