Does plating have a big impact on terminal performance? What metal should I use for hardware?

Does plating have a big impact on terminal performance? What metal should be used for hardware? Electroplating, is the use of electrolytic principles in some metal surfaces plated with a thin layer of other metals or alloys, is the use of electrolysis to make the surface of the metal or other material parts attached to a layer of metal film of the process thereby preventing metal oxidation (such as corrosion), to improve abrasion resistance, electrical conductivity, reflective, corrosion resistance (copper sulfate, etc.) and to enhance the role of aesthetics and so on. The main components of the terminal block can be divided into three major parts of hardware, plastic shell and accessories, which is more important is the first two parts. The importance of the shell need not be said, impact resistance, flame retardant parameters are essential, but on the electrical performance, take charge of the conductive parts. Conductive parts bear the responsibility of conducting signals, its choice of materials and plating directly affect the conductivity of the terminal, that choose which material is good?

Most of the terminal products are made of alloy copper with nickel plating as conductive parts. Pure copper has excellent electrical conductivity, but as a conductive part, excellent electrical conductivity at the same time also need a certain degree of hardness, so add a small portion of other metal materials composed of alloy copper to meet the needs of these two aspects. As for nickel plating, we are described in detail below: 1. nickel plating layer in the air is very high stability, due to the nickel metal has a strong passivation ability, the surface can quickly generate a very thin passivation film, can resist the atmosphere, alkali and some acid corrosion. 2. nickel plating is extremely fine crystallization, and has excellent polishing properties. Polished nickel plating can get mirror-like glossy appearance, while in the atmosphere can maintain its luster for a long time. 3. nickel plating hardness is relatively high, can improve the abrasion resistance of the surface of the product, in the printing industry commonly used nickel plating layer to improve the hardness of the lead surface. Due to the high chemical stability of nickel metal, some chemical equipment is also commonly used thicker nickel plating to prevent corrosion by the medium. Nickel plating layer is also widely used in functional aspects, such as the repair of worn, corroded terminal row parts, the use of brush plating technology for local plating. 4. nickel plating has a wide range of applications, can be used as a protective decorative plating, in steel, zinc die casting, aluminum alloys and copper alloy surfaces, to protect the substrate material from corrosion or play a role in the decoration of the light; also often used as an intermediate plating of other plating, and then plated a thin layer of chromium, or a layer of imitation gold, or a layer of gold, or a layer of gold. It is also often used as an intermediate layer of other plating, on which a thin layer of chromium is plated or a layer of imitation gold is plated, which has better corrosion resistance and more beautiful appearance. In terms of functional application, nickel plating in special industry parts about 1~3mm thick, can achieve the purpose of repair. Especially in the continuous casting crystallizer, electronic component surface of the mold, alloy die-casting molds, complex shape of the aerospace engine parts and micro-electronic components such as the manufacture of the party application is more and more widely. 5. In electroplating, due to the plating of nickel has a lot of excellent performance, its processing volume is second only to the plating of zinc in the second place, and its consumption of nickel accounted for about 10% of the total output. Nickel (Ni), atomic number 28, strong alkali resistance, can be burned in pure oxygen, emitting dazzling white light. It has strong resistance to oxidation and corrosion. Insoluble in water, at room temperature in humid air in the surface to form a dense oxide film, can prevent the body metal continues to oxidize. It is because of nickel's excellent corrosion and oxidation resistance, become connected to electrical terminals conductive parts of the plating first.

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