Street lamp light pole oxidation treatment

Outdoor lighting road lamp pole long-term exposure to inclement weather, easy to cause surface corrosion, resulting in a decline in service life. In order to guarantee the service life of street lamp light pole, it is necessary to find a suitable method was carried out on the street lamp light pole surface oxidation treatment. Powder electrostatic spraying the original



outdoor lighting road lamp pole long-term exposure to inclement weather, easy to cause surface corrosion, resulting in a decline in service life. In order to guarantee the service life of street lamp light pole, it is necessary to find a suitable method was carried out on the street lamp light pole surface oxidation treatment.

powder electrostatic spraying 【 Principle of electrostatic spraying is refers to the use of corona discharge atomize paint burden under the action of a high voltage direct current (dc) electricity, and adsorption in the Netherlands positively charged basal surface discharge coating method. 】 Principle: the principle of electrostatic spraying adopts high voltage electrostatic corona electric field. Metal cup with high pressure spray gun head negative electrode connection, coating workpieces ground to form the positive, spray gun and workpiece formed between strong electrostatic field. When the carrier gas ( Compressed air) Through powder duct sending powder for powder from the cylinder to spray gun guide cup, cup connection of high-voltage negative electrode produce corona discharge 【 Corona discharge ( 电晕放电) Refers to the gas medium in the local self sustaining discharge of non-uniform electric field, is one of the most common forms of gas discharge. 】 , a dense around a guide cup charge, powder with a negative charge. Under the action of electrostatic force and compressed air, powder evenly on the adsorption of workpiece, after heating, the powder melting solidification into uniform, smooth, glossy coating. Electrostatic spraying can be divided into coating and plastic coating.

in addition, still have a kind of high temperature plastic spraying technology, is developed in recent years a new surface treatment technology. It is mainly used to improve the surface properties of the metal parts, improve the special medium wear resistance, corrosion resistance, oxidation resistance, electrical insulation, such as features, and have effective surface decoration effect. Its basic principle is flame heating and melting, the preparation of nylon coating has the workpiece surface, so as to achieve the desired coating layer.