Street light poles are often used for outdoor lighting. When exposed to bad weather for a long time, the surface is easily corroded, which leads to a decrease in the service life of street light poles and reduces safety. In order to improve the service life of street light poles and pedestrian safety,
street light manufacturers The surface anti-oxidation treatment must be carried out before the street light pole leaves the factory, so what are the ways of anti-oxidation treatment?
1. Hot-dip galvanizing
It adopts internal and external hot-dip galvanizing anti-corrosion treatment, and the galvanized layer must be greater than or equal to μm to ensure that the pole will not rust every year.
2. Surface spray treatment
After hot-dip galvanizing, polishing and polishing, the street light pole is sprayed with polyester plastic powder. The thickness of the plastic layer is greater than or equal to μm to ensure the uniformity of the plastic layer, high adhesion, and UV protection. Generally, it will not fall off for ten years.
3. Powder electrostatic spraying
Electrostatic spraying uses the principle of high-voltage electrostatic corona electric field. The metal guide cup on the spray gun head is connected to the high-voltage negative pole, and the coated workpiece is grounded to form the positive pole, forming a strong electrostatic field between the spray gun and the workpiece.
When the carrier gas (compressed air) transports the powder coating from the powder supply tank to the guide cup of the spray gun through the powder pipe, the guide cup is connected to the high voltage negative electrode to generate corona discharge, and dense electric charges are generated around it. The powder is negatively charged. Under the action of electrostatic force and compressed air, the powder is uniformly adsorbed on the workpiece. After heating, the powder melts and solidifies into a uniform, flat and smooth coating film.
Fourth, high temperature plastic spraying
This is a new surface treatment technology developed in recent years. It is mainly used to improve the surface performance of metal parts, improve the wear resistance, corrosion resistance of special media, oxidation resistance, electrical insulation and other characteristics of Effective surface decoration. The basic principle is to spray nylon onto the surface of the workpiece prepared in advance under the heating and melting of the flame to obtain the required spray coating.
The process of urbanization is accelerating, and the construction of outdoor road lighting is also in full swing. Street light poles are widely used in every corner of the city. It is extremely important for street light manufacturers to do the anti-oxidation treatment of street light poles. Our lighting is anti-corrosion The technical requirements are extremely strict and are well received by customers.
