Electroplating and water platingThey are all methods of metal surface treatment, and they have some differences in principle, application, advantages and disadvantages. The differences between electroplating and hydroplating are detailed below.
First, the principle is different
Water plating, also known as electroless plating,It is a method of depositing a layer of metal or alloy on the surface of a metal using a chemical reaction. Water plating does not require an external power supply, only needs to immerse the plated parts in an aqueous solution containing the plating solution, and the reducing agent in the plating solution will undergo redox reaction with the metal ions in the plating solution, so that the metal ions are reduced to metal atoms, and a uniform coating is formed on the surface of the plated parts.
Electroplating, also known as electroplatingIt is a method of depositing a layer of metal or alloy on the surface of a metal using the principle of electrolysis. Electroplating requires an external DC power supply, the plated part is used as the cathode, the metal in the plating solution is used as the anode, and the two poles are connected to the power supply through wires to form a closed circuit. When energized, the metal on the anode will dissolve into metal ions, enter the plating solution, and the metal ions on the cathode will absorb electrons, reduce to metal atoms, and form a layer of plating on the surface of the plated part.
Second, the application is different
The application range of electroplating is very wide, the application fields are hardware, home appliances, decoration, jewelry, etc., and the common electroplating is chrome plating, gold plating, silver plating, copper plating, etc. The application fields of water plating are electronics, machinery, aviation, automobiles, etc., and the common water plating is nickel plating, copper plating, zinc plating, tin plating, etc.
Third, the advantages and disadvantages are different
Advantages of electroplatingIt can plating a coating with controllable thickness, good color and gloss, and the plating speed is fast, and the preparation and control of the plating solution are simple.
Disadvantages of electroplatingIt is not possible to plating non-metallic materials, and the uniformity and adhesion of the coating are poor, which is easy to produce defects such as cracks and bubbles, and the electroplating process will consume a lot of electrical energy and water resources, and will also cause environmental pollution.
Advantages of water platingIt can be plated with uniform thickness, strong adhesion and good corrosion resistance, and can be plated with complex shapes, and even non-metallic materials can be plated.
Disadvantages of water platingThe preparation and control of the plating solution is more complicated, the toxic substances in the plating solution will cause environmental pollution, and the plating speed is slow, and the color and luster of the plating layer are poor.
To sum up, there are differences between electroplating and water plating in terms of principle, application, and advantages and disadvantages. Electroplating is suitable for metal surface treatment with high purity and precise thickness control, while water plating is suitable for metallization of non-metallic surfaces such as plastics and glass. When choosing a metal surface treatment method, it is necessary to consider comprehensively according to the actual needs and production conditions.
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