Brushed Bright Nickel Electroplating for Razor Handle
What is Nickel Plating?
Nickel plating refers to the method of plating a layer of nickel on metal or some non-metals by electrolysis or chemical method, which is called nickel plating. Nickel plating is divided into electroplating nickel and electroless nickel plating. Nickel electroplating is in an electrolyte composed of nickel salt (called the main salt), conductive salt, pH buffer, and a wetting agent. The anode is made of metallic nickel, and the cathode is a plated piece. Direct current is applied to the cathode (plated piece). Deposit a uniform, dense nickel coating...
Characteristics, properties, and uses of electroplated nickel
1. The stability of the electroplated nickel layer in the air is very high. Due to the strong passivation ability of metallic nickel, a very thin layer of passivation can be rapidly formed on the surface.
The membrane is resistant to corrosion by the atmosphere, alkalis, and some acids.
2. The electroplated nickel crystals are extremely fine and have excellent polishing performance. The polished nickel coating provides a mirror-like glossy finish while maintaining
It can keep its luster in the air for a long time. Therefore, electroplating layers are often used for decoration.
3. The hardness of the nickel coating is relatively high, which can improve the wear resistance of the surface of the product. In the printing industry, nickel coating is commonly used to improve the hardness of the lead surface.
Due to the high chemical stability of metallic nickel, thicker nickel plating is also commonly used in some chemical equipment to prevent corrosion by the medium. Nickel plating
It is also widely used in functional aspects, such as repairing worn and corroded parts and using brush plating technology for local electroplating. Electroforming
The process is used to make electroforming plates, record molds, and other molds for the printing industry. Thick nickel plating has good wear resistance and can be used as a
Grinding coating. Especially in recent years, composite electroplating has been developed, which can deposit a composite nickel coating with wear-resistant particles.
The nickel layer is higher. If graphite or fluorinated graphite is used as the dispersed particles, the obtained nickel-graphite or nickel-fluorinated graphite composite coating has very good properties.
Self-lubricating can be used as a lubricating coating. Black nickel coating is also widely used as a coating or decorative coating for optical instruments.
4. Nickel plating has a wide range of applications and can be used as a protective decorative coating to protect the base material on the surface of the steel, zinc die casting, aluminum alloy, and copper alloy.
The material is not corroded or has a bright decorative effect; it is also often used as an intermediate coating for other coatings, and a thin layer of chrome is plated on it, or a layer of imitation gold is plated.
Its corrosion resistance is better and its appearance is more beautiful. In terms of functional applications, nickel plating is about 1~3mm thick on parts of special industries, which can achieve the purpose of repair.
of. Especially in continuous casting molds, molds on the surface of electronic components, die-casting molds for alloys, aerospace engines with complex shapes
Applications such as the manufacture of components and microelectronic components are becoming more and more widespread.
5. In electroplating, because electroplating nickel has many excellent properties, its processing volume is second only to electroplating zinc, and its consumption accounts for the total output of nickel.
of about 10%.
Characteristics, properties, and uses of electroless nickel plating
1. Thickness uniformity Uniform thickness and good throwing ability are major features of electroless nickel plating and one of the reasons for its wide application.
It avoids the uneven thickness of the electroplating layer due to uneven current distribution. During electroless plating, as long as the surface of the part is in contact with the plating solution, the liquid will disappear in the plating solution.
The consumed components can be replenished in time, and the coating thickness of the plated parts is basically the same, even if the grooves, gaps, and blind holes are the same.
2. The plated parts will not permeate hydrogen, there is no hydrogen embrittlement, and there is no need to remove hydrogen after electroless nickel plating.
3. The functions of many materials and components, such as corrosion resistance and high-temperature oxidation resistance, are better than those of electroplated nickel.
4. It can be deposited on the surface of various materials, such as steel nickel-based alloys, zinc-based alloys, aluminum alloys, glass, ceramics, plastics, semiconductors, and other materials
on the surface of the materials, thus creating conditions for improving the performance of these materials.
5. No DC motor or control equipment required for general electroplating is required.
6. The heat treatment temperature is low. As long as the temperature is below 400 °C for different holding times, different corrosion resistance and wear resistance can be obtained. Therefore, it is especially suitable for
Functional coatings for parts with complex shapes and surfaces requiring wear and corrosion resistance, etc.
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