Function: Remove oil, dust and rust on the surface of the raw material of explosion-proof quick-release doors, and generate a phosphating layer on the surface of the material that is anti-corrosion and can increase the adhesion of the spray coating.

    Main process steps: degreasing, rust removal, phosphating, passivation. After the raw materials are pre-treated, the surface will be free of grease and rust, and a uniform and rough gray phosphating film that is not easy to rust will be formed on the steel plate. The anti-corrosion ability of the door is enhanced, it is not easy to rust, and it can also increase the adhesion of the spray layer on the surface of the explosion-proof fast door.

    2. Enter electrostatic spraying

       Function: Evenly spray the powder coating on the surface of the high-speed door. Special explosion-proof high-speed doors (including the position that is prone to electrostatic shielding) need to be sprayed with a high-performance electrostatic spraying machine, supplemented by manual inspection.

    Main process steps: Using the principle of electrostatic adsorption, evenly spray a layer of powder coating on the surface of the explosion-proof high-speed door. If it is manually operated, there are very strict requirements on the workers' operating

skills. Only workers with rich operating experience can The door surface is sprayed evenly and without omission. The remaining powder falling from each corner of the explosion-proof quick door after spraying is recovered by the fan recovery system.

Generally, it is not suitable for continuous use, which will reduce the qualiy of electrostatic powder.

        SEPPES door industry continues technological innovation in accordance with European industry standards, has a number of product core technologies and has passed the EU CE and international authority SGS certification, the market covers the whole country. Perfect after-sales service, cooperation cases all over the country, the choice of nearly 60 Fortune 500 companies such as Geely, Procter & Gamble, Huawei, Bosch, and Pfizer, and the trust of more than 2,000 cooperative customers around the world. Products are exported to Chile, the Philippines, Spain, and Costa Rica In more than 50 countries, many overseas distributors provide high-quality services to global customers.