What should I pay attention to before using a powder spray gun?
What should I pay attention to before using a powder spray gun?
When spraying metallic flash paint or pearl paint, the color may not be as expected. If it's too far apart. If it exceeds 20 cm, it may result in dry spraying and overspraying, which can deteriorate the leveling property of the paint. Discoloration may also occur if metallic flash paint is applied. Pressure feed guns can be further away from the substrate, usually 20 to 30cm apart. These are the principles that must be followed when spraying.
Spray gun manufacturers use spray gun to treat three parts including oil, rust and phosphating before coating. Degreasing and rusting are the preparation processes prior to phosphating. Therefore, in the practice of electrophoretic coating production line, phosphating work is needed, and from phosphating quality. In addition to churros and strips, pay special attention to their interactions.
Form an excellent phosphating film on the surface of the workpiece, which has been removed from other foreign substances, such as oil, rust, oxide. Because oil, rust, oxide and so on remain on the surface of the workpiece, it will seriously hinder the growth of phosphating film. In addition, it also affects the coating adhesion, drying properties, decorative properties and corrosion resistance, and has completely removed the necessary conditions of phosphating.
Oil and rust are two basic processes before phosphating, and the oil-based workpiece directly affects the rust rate, so it should be carried out on the basis of oil removal. However, for the hydrogenated insect oil of oil, the mold can also be combined with the two basic processes of rust and rust, while completing the rust prevention process of oil definition, electric swimming paint production line can reduce equipment and plant investment. Cost, but finish quality is not as good as slide rails, and can be used in less advanced applications. After this process, degreasing should also be used in acid auxiliaries and rusting. Antirust is still hydrochloric acid, rust fast, rust rust, oxidation is also good removal function, it is normal temperature, disadvantage is large hydrochloric acid, harmful, health, environmental pollution.
