Nickel-Free Plating
Chrome-free plating is a chromium-free plating technology that uses other elements or compounds instead of chromium to achieve stable and improved plating effects and performance. The emergence of chromium-free plating technology is mainly to avoid the pollution and harm caused by chromium to the environment and human health.
There are many kinds of chromium-free plating technologies, and the common ones include the following:
1. Nickel-phosphorus alloy plating: Nickel-phosphorus alloy plating is a kind of alloy plating layer formed on the surface of substrate by electrochemical reaction with nickel salt and phosphate as the main raw materials. Nickel-phosphorus alloy plating layer has good corrosion resistance, wear resistance and heat resistance, and is widely used in automotive, electronics, machinery and other industries. 2.
2. Zinc-iron alloy plating: Zinc-iron alloy plating is a kind of alloy plating layer formed on the surface of substrate by electrochemical reaction with zinc and iron salts as the main raw materials. Zinc-iron alloy plating layer has good corrosion resistance, wear resistance and heat resistance, and is widely used in automotive, aviation, construction and other industries.
Copper-nickel-chromium alloy plating: copper-nickel-chromium alloy plating is an alloy plating layer formed on the surface of the substrate by electrochemical reaction with copper salt, nickel salt and chromium salt as the main raw materials. The copper-nickel-chromium alloy plating layer has good corrosion resistance, wear resistance and heat resistance, and is widely used in automotive, aviation and construction industries.
Chrome-free plating is an environmentally friendly and efficient plating technology. Commonly used chrome-free plating technologies include nickel-phosphorus alloy plating, zinc-iron alloy plating, and copper-nickel-chromium alloy plating. Although chrome-free plating technology still has some limitations compared to traditional plating technology.
