What is the difference between spring nickel plating and galvanizing?

Springs are widely used in our daily life and industrial production, and in order to improve the corrosion resistance and aesthetics of springs, springs are often surface treated. Among them, nickel plating and zinc plating are two common surface treatment methods. So, what is the difference between spring nickel plating and galvanizing? Nickel plating refers to covering the surface of the spring with a layer of metallic nickel to improve the spring's corrosion resistance and wear resistance. Galvanizing is to cover the surface of the spring with a layer of metal zinc through electroplating or hot plating to achieve the purpose of anti-corrosion. Compared with nickel plating, the price of galvanizing is cheaper, and at the same time, the appearance of galvanization is also more beautiful, which can meet the needs of general products. Comparison of the characteristics of galvanized and nickel plating 1. Corrosion resistance Galvanized springs have excellent corrosion performance and can resist the erosion of chemical media such as acids and alkalis for a long time. Although nickel-plated springs are worse than galvanized in terms of corrosiveness, they also have good anti-corrosion ability. 2. Conductivity Galvanized springs have good conductivity because they contain zinc elements. Nickel-plated springs, on the other hand, have poor conductivity and require special treatment. 3. Hardness and toughness Galvanized springs have higher hardness, but slightly less toughness. Nickel-plated springs, on the other hand, have better toughness but slightly lower hardness. 4. The color of the surface of the galvanized spring is white and silver, while the color of the surface of the nickel-plated spring is yellowish. In addition, there are other differences between spring nickel plating and galvanization. For example, nickel plating has strong adhesion and is not easy to fall off, while zinc plating has relatively weak adhesion and is easy to fall off. Additionally, nickel plating needs to be done in an oxygen-free or low-oxygen environment, while zinc plating needs to be done in an aerobic environment. To sum up, there are obvious differences between spring nickel plating and galvanized plating in terms of corrosion resistance, wear resistance, appearance, price, etc. CATALOG Spring recommends which surface treatment method to choose needs to be comprehensively considered based on factors such as product performance requirements, use environment, and cost budget.

Reprint remarks: CATALOG Precision Components (Suzhou) Co., Ltd