First, whether electroplating, electrophoresis, oxidation, plastic spraying and painting can cover the differences.
1, electroplating, electrophoresis, oxidation
Electroplating, electrophoresis and oxidation are inconvenient to cover.
2. Powder spraying and painting
Powder spraying and painting can be shielded.
Second, whether electroplating, electrophoresis, oxidation, plastic spraying and painting can be treated twice is different.
1, electrophoresis, oxidation
After electrophoretic oxidation, the surface insulation can be treated without secondary treatment.
2. Powder spraying, painting and electroplating
Powder spraying, painting and electroplating can be repeated many times.
Third, materials suitable for electroplating, electrophoresis, oxidation, plastic spraying and painting are different.
1, oxidation
Oxidation is only applicable to magnesium, aluminum and magnesium-aluminum alloys.
2. Electrophoresis
Electrophoresis is suitable for all products with conductive surfaces.
3. Electroplating, powder spraying and painting
Electroplating, powder spraying and painting are suitable for almost all product surface treatments.
Fourth, the advantages and disadvantages of electroplating, electrophoresis, oxidation, plastic spraying and painting are different.
1, electroplating
Advantages of electroplating: the coating has metallic luster, good hardness and no need for heating and curing;
Disadvantages: heavy metal pollution is inevitable, single color and high cost.
2. Electrophoresis
Advantages of electrophoresis: water-based coatings are environmentally friendly, with high utilization rate, good corrosion resistance, high treatment efficiency and low cost per unit area;
Disadvantages: single color, difficult to adjust at will, and large preparation investment. It is only suitable for conductive products and needs high temperature curing.
3. Oxidation
Advantages of oxidation: simple process, capable of making various bright colors and low cost;
Disadvantages: only suitable for magnesium-aluminum products.
4. Plastic spraying
Advantages of plastic spraying: environmental protection paint, high utilization rate of paint, and can be made into various colors;
Disadvantages: film thickness and high temperature curing.
Step 5 paint
Advantages of spray painting: different colors can be processed, and the selectivity of various performance coatings is stronger;
Disadvantages: low utilization rate, poor environmental protection and high fire risk, so it is necessary to do a dust-free workshop.
Extended data:
Electroplating is a process of plating a thin layer of other metals or alloys on the surface of some metals by using the principle of electrolysis, and it is a process of attaching a metal film on the surface of metals or other materials by using electrolysis to prevent metal oxidation (such as corrosion) and improve wear resistance, conductivity, reflectivity and corrosion resistance (such as copper sulfate). ) and enhance aesthetics.
Under the action of electric field, charged particles move to the opposite electrode, which is called electrophoresis (EP). The technology of separating charged particles by using different moving speeds in electric field is called electrophoresis technology.
In a narrow sense, oxidation refers to the chemical reaction between oxygen and other substance elements, and it is also an important chemical unit process. Oxidation in a broad sense refers to the process that a substance loses electrons (the oxidation number increases).
Plastic spraying is a surface treatment method of spraying plastic powder on parts. Plastic spraying, that is, electrostatic powder spraying, is a commonly used international metal surface treatment and decoration technology since the 1980s.
An artificial pigment is prepared from nitrocellulose, resin, pigment, solvent, etc. Generally, it is evenly sprayed on the surface of the object with a spray gun, which is water-resistant and oil-resistant, and dries quickly. It is used to paint cars, airplanes, wood products, leather and so on.
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