Painting _ _ Sino coating line painting equipment (certified merchants)

Many coating methods, mainly painting method, dipping method, air spray, airless spray, electrostatic spray coating method and the electrophoresis method. 3, and the product equipped with a coating material in the coating requirements for construction, seldom a single layer coating, because the coating is less than such a uniform non-porous. Often used primer plus topcoat layer, may be added as necessary an intermediate layer, outer layer of closed topcoat varnish layer. The primer layer is coated on the workpiece to have good adhesion, opposite the paint coating to be a good combination of strength and ability to be with rust. Supporting the principle of the primer layer and top coat layer is as follows: 1) The best primer layer is dried and drying of topcoats;-drying primer and self-drying topcoats; based paint with primer and topcoats. 2) When selecting finish strong solvents, such as: lacquer, vinyl chloride, such as paint, primer layer must be resistant to strong solvents do not bite on, such as alkyd, epoxy paint. 3) primer and topcoat have broadly similar hardness, elongation degree. 4) When the play based on matching the paint curing primer, temperature thermal poor. 5) oil than the oil length of the primer coat is shorter, otherwise the finish of poor weather, and the primer paint drying shrinkage of different layers could easily lead to cracking. 6) When using a multi-layer coating heterogeneous, often using intermediate layer coating equipment, paint base transition, reaching the bottom and the surface layer of a good combination. Organic coating adhesion and the nature of the relevant Material, according to the size of the coating adhesion, the metal can be arranged as follows: Cu → Ni → steel → tin brass → → → Pb black aluminum metal to almost all types of primers are applicable, and magnesium aluminum parts and their alloys, usually with zinc chromate passivation primer for the body. Surface pre-treatment is preferably carried out effectively, making it generate a phosphate film or an oxide film to enhance the adhesion of the body with the primer. Then choose the adhesion primer. For aluminum and galvanized never use red lead paint primer, otherwise it will cause electrochemical action, so that the adhesion of decline. Electrostatic powder coating process bake cycle gas heating: This system is a necessary piece of equipment after spraying curing baking, coating quality is good or bad depends largely on the oven to bake the workpiece, the entire device is The key part. The system for gas heating cycle, in order to avoid taking up more plants, the use of the characteristics of hot air naturally rises, reducing heat loss in the furnace and the import and export of air convection. The system consists of the furnace, the return air duct, gas hot air system, exhaust system and automatic temperature control system. Forced hot air circulation system, a unique, lower guide air technology, on the return air side of technology, its air duct disposed in the lower chamber body, and there is air flow control valve, sending heat evenly and reliable to ensure the furnace temperature uniform, no color piece after curing. (1) electrophoretic coating can be completely dissolved in water and emulsion, the preparation of low viscosity bath, with water almost. Easily penetrate into the body is immersed in the bath (to be coated) cavity-like structure and crevices. (2) the electrodeposition bath having a high conductivity, paint particles can lively perpetual, and deposited on the object to be coated. Wet coating film conductive coating of small companies, with the wet coating thickness, its resistance increases, reaching a certain resistance value, it is no longer electrodeposition up. Based on these two points, the electrical diagram swimsuit has a good throwing, you can generate a relatively uniform coating. (3) the low solids content of the bath, the viscosity is small, the groove is less body out of the outer coating, and available ultrafiltration (UF) and reverse osmosis unit (RO) means for recycling. (4) coating adhesion, high-rust force (20μm thick anodic electrophoretic coating spray corrosion resistance over 300h, cathodic electrodeposition coating spray corrosion resistance than 1000h). (5) electrophoresis tank solvent (water-soluble solvent) content of less liquid, with a blowtorch ignition and burn it up, you can worry less about the scene of fires and explosions. Painting _ _ Sino coating line painting equipment (certified merchants) provided by Qu Sino Painting Equipment Limited. Road Zhiyuan, temper forward. Qu Sino Painting Equipment Co. (www.wfjn.com) (www.wfjn.com) (www.wftcsw.com) strives to be and you win, symbiosis, strategic partners to move forward, the more determined to become the industrial automation control systems and equipment of the most influential companies, and you leap together to success!