Introduction to flat-panel spraying technology applied to household appliance housings

the original development of flat-panel spraying is in the production of pre-coated coils, in recent years began to be applied to the spraying production of home appliance housingsIn the production of home appliances, the spraying process of the housing plate is arranged before forming after punchingIn the process of flat-panel spraying, the transmission mode of the workpiece is made in a horizontal double-drain feedProduction line speed up to 8-18m/min, in order to reduce equipment footprint, reduce equipment investment, plate pre-processing process must be completed in a few seconds to more than a dozen seconds, so that the equipment used in the pre-processing and pre-processing process put forward a high technical requirementsAt present, only a few foreign chemical liquid manufacturers have developed this liquid, such as: HENKEL, CORAL, CHEme
taLL, etc., and has been put into mass productionBecause the coating of the plate is thin and uniform and molded after spraying, it requires a high performance indicator for the powder coating, e.gthe adhesion of the flat coating coating must be 5B (ASTMD359) and the impact resistance must be 160in-lbs (1.845kg) m) (ASTM2974), bending requirements to reach OT (ASTMD522), salt-resistant fog test requirements to reach 1000h, in addition, because of the flat-panel coating using electrostatic friction gun, it is the powder before the filming of various performance indicators such as load, particle size distribution, etcalso have special requirementsAt present, only a few foreign specialized in the production of powder coatings of large companies have the ability to develop production, such as: FERRO, DUPONT, AKZO-NOBEL and so onThere are few first-class companies capable of producing flat-panel spraying equipment, such as ELSENMANN of Germany, KOCH corporation of the United States, NORDSON of the United States, and WAGN-ER of Germany, which manufactures the spray equipment