Powder spraying equipment production line is the key process in the process of spraying production. When working, the key to the surface quality of the spray on the workpiece is the control of various process parameters during the spray process, especially the amount of spray powder and atomized air are two key technical indicators.
Electrostatic powder spraying line operators operating requirements: 1, coat on the coat hanger to often clean the powder production line to ensure that the workpiece ground. 2, operators should be required to conduct pre-job training. 3, the operator should carry out regular physical examination. Persons with occupational contraindications shall not engage in powder spraying operations. 4, powder coatings should not be stored with solvent-based coatings and diluents. 5, the operator should wear anti-static work clothes, shoes and hats, gloves and metal jewelry. 6. When the automatic powder spraying system is working, other parts of the human body shall not enter the powder spraying room except the butt arm of the supplementary powder spraying station. 7. When the high pressure of the equipment is not cut off, the equipment shall not be repaired
Powder electrostatic spraying process: preliminary surface treatment of steel, such as degreasing, surface conditioning, hot dip galvanizing, cleaning, phosphating, drying, etc. This series of early process is mainly used for rust removal and impurity removal powder production line, not only to remove the easy cause of steel rust. It also creates a zinc coating and phosphating film on the steel surface. Zinc coating protects steel from corrosion and rust. The phosphate coating enables the powder to be sprayed on the steel surface with stronger powder adhesion. After the steel is pre-treated, it is sprayed with electrostatic spraying equipment consisting of spray gun, spray cup and high voltage power supply. A high voltage electrostatic field is used to make the negatively charged paint particles move in the opposite direction of the electric field, and then they are adsorbed on the steel to be coated. The surface. High performance electrostatic spraying machine is used to complete the spraying, and the effect of powder adhesion is achieved through electrostatic shielding. The powder coating on the surface of the steel is heated to the specified temperature (180℃-220℃), and the corresponding time is kept warm to melt, smooth and cure it, so as to get the surface effect of the guardrail product we want.
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