Elevator pressure plate bolts T-type pressure channel bolts

Nickel plating is a process of covering nickel metal on the surface of other metals or non-metals, mainly through electrolysis or chemical methods. This process can improve the corrosion resistance, aesthetics, hardness and wear resistance of the substrate.

Nickel plating processes are mainly divided into two types: electroless nickel plating and chemical nickel plating.

1. Nickel plating: Nickel plating is in an electrolyte composed of nickel salt (called main salt), conductive salt, pH buffer, and wetting agent. Metal nickel is used as the anode, and the cathode is the plated part. Direct current is passed through, and the cathode is A uniform and dense nickel plating layer is deposited on (plated parts). The electroplated nickel layer has high stability in the air and can resist corrosion from the atmosphere, alkali and certain acids. Electroplated nickel crystals are extremely small and have excellent polishing properties. The polished nickel coating can obtain a mirror-like glossy appearance and can maintain its luster for a long time in the atmosphere, so it is often used for decoration. In addition, the hardness of nickel plating is relatively high, which can improve the wear resistance of the product surface, so it is also used to increase the hardness of the lead surface to prevent corrosion by the medium. Nickel electroplating has a wide range of applications. It can be used as a protective decorative coating to protect the base material from corrosion or provide bright decoration on the surface of steel, zinc die-casting parts, aluminum alloys and copper alloys. It is also often used as an intermediate coating for other coatings. , and then plate a thin layer of chromium or a layer of imitation gold on it, which will have better corrosion resistance and more beautiful appearance.
2. Electroless nickel plating: Also known as electroless nickel plating, it can also be called autocatalytic nickel plating. It refers to the process in which nickel ions in an aqueous solution are reduced by a reducing agent under certain conditions and precipitate on the surface of a solid substrate. Generally, the alloy coating obtained by electroless nickel plating is Ni-P alloy and Ni-B alloy.

Please note that the specific implementation of the nickel plating process may vary depending on the application area, substrate type, equipment conditions, etc. In actual operations, relevant process specifications and safety operating procedures should be followed to ensure nickel plating quality and production safety.