12V 12000A Nickel Plated Rectifier

Nickel plating is a metal surface treatment process that mainly deposits a nickel layer on the surface of metals or other materials to improve their corrosion resistance, abrasion resistance and aesthetics. There are three types of nickel plating. Electroless nickel plating involves the reduction and deposition of nickel ions on the surface of a substrate through an electrolytic process. This method is commonly used for mass production. Electroless nickel plating utilizes a chemical reaction to deposit nickel on a substrate without the need for an electric current. This method allows for uniform nickel plating on complex shapes. Hot-dip nickel plating involves immersing the substrate in molten nickel so that the nickel reacts with the substrate to form an alloy layer. Nickel has good oxidation and corrosion resistance and protects the substrate from the environment. The nickel layer increases the hardness of the material and enhances its wear resistance. Nickel plating has a smooth and metallic surface and is often used for decorative applications. Nickel also has good electrical conductivity and is suitable for surface treatment of electronic components. Nickel plating is mainly used in the automotive industry for the anti-corrosion treatment of automotive parts; in the electronics industry for the surface treatment of circuit boards and connectors. Home appliance industry, used for home appliance shell and internal parts of the anti-corrosion. Mechanical equipment is used to improve the wear resistance and service life of mechanical parts.
Before nickel plating, the surface of the substrate needs to be cleaned and degreased to ensure the adhesion of the plating. According to the usage environment and requirements, choose the appropriate plating thickness, too thick may lead to brittleness. The nickel plating process may involve some chemical substances, which require attention to environmental protection and safety. However, the cost of nickel plating is relatively high, especially in small batch production. In some cases, the nickel layer may become brittle, leading to flaking or cracking. When selecting a nickel plating process, a sound evaluation needs to be made based on the specific needs of the application.
Electroplating is the process of applying a thin layer of other metals or alloys on the surface of certain metals by electrolysis. It is a process of applying a metal film to the surface of metals or other materials to prevent metal oxidation (such as rust), improve wear resistance, electrical conductivity, reflectivity, corrosion resistance (copper sulfate, etc.) and enhance aesthetics.

Types of plating

1. Copper plating: priming, enhance the ability to adhere to the plating layer, and the ability to resist corrosion. (Copper is easy to oxidation, oxidation, copper green no longer conductive, so copper-plated products must do copper protection)
2. Nickel plating: priming or appearance, to enhance the corrosion resistance and wear resistance, (where the chemical nickel for the modern process of wear resistance than chrome plating). (Note that many electronic products, such as DIN head, N head, no longer use nickel priming, mainly because nickel is magnetic, will affect the electrical properties inside the passive intermodulation)
3. Gold plating: improve the conductive contact impedance, enhance signal transmission. （Gold is the most stable, but also the most expensive.)
4. Palladium-nickel plating: improve the conductive contact impedance, enhance signal transmission, wear resistance than gold.
5. Tin-lead plating: improve soldering ability, soon to be replaced by other substitutes (because of the lead content is now mostly changed to bright tin and mist tin plating).
6. Silver plating: improve the conductive contact impedance, improve signal transmission. (Silver performance is the best, easy to oxidation, oxidation also conductive)
   
   

Elements of electroplating

1. Cathode: the plated object, referring to various connector terminals.
2. Anode: If it is soluble anode, it is the metal to be plated. If it is insoluble anode, most of them are precious metals (white gold, iridium oxide).
3. Plating solution: plating solution containing ions of the metal to be plated.
4. Plating tank: The tank that can bear and store the plating solution, generally considering strength, corrosion resistance, temperature resistance, etc.
5. Rectifier: The equipment to provide DC power supply.