Electroplating, spraying, and phosphating are the three most commonly used processes in the field of metal surface treatment. Each of the three has distinct core functions—electroplating excels in protection and wear resistance, spraying is superior in aesthetics and wide adaptability, and phosphating is mostly used as an auxiliary pretreatment. The selection should be comprehensively judged based on material characteristics, service environment, performance requirements, and cost budget. The following is a detailed comparison and selection guide.

Metal surface treatment is a key process that optimizes the surface properties of metals through physical, chemical, or electrochemical methods. Its core purposes are to enhance corrosion resistance, wear resistance, aesthetics, and adhesion. The following sorts out the principles and application scenarios of mainstream processes to help you fully understand the core value and applicable needs of various processes.

In the automotive and mechanical manufacturing industry, the corrosion resistance and wear resistance of components directly determine the reliability and service life of the entire machine. The processes of galvanizing, chrome plating, and passivation in metal surface treatment have become the core supporting processes for the manufacturing of automotive mechanical components with precise performance empowerment, laying a solid quality defense line for key components such as crankshafts, gears, and fasteners.

In the field of industrial manufacturing, the service life and performance of metal workpieces largely depend on the quality of surface treatment processes. Among them, anti rust and wear-resistant coating and metal anodizing processing are the core processing technologies, which can not only improve the weather resistance and mechanical strength of metal workpieces, but also adapt to the strict requirements of multiple industries such as automobiles, machinery, electronics, etc., becoming indispensable key processes in the manufacturing process.

Auto parts are exposed to outdoor environments with intense sunlight, rain, and sudden temperature changes for long periods, while also needing to maintain the consistent appearance of the entire vehicle. Metal-plastic coating, with its dual advantages of "enhancing weather resistance and aesthetics", has become an indispensable key process in automobile manufacturing, providing comprehensive protection for various parts such as interior and exterior trims, and chassis components.

In daily use and industrial production, products made of metal and plastic materials often develop surface scratches and abrasions due to collisions and friction. This not only affects the aesthetic appearance but also exposes the base material, leading to corrosion and aging, which shortens the product's service life. However, wear-resistant metal-plastic coating, with its core capability of "resisting scratches and abrasion", builds a protective barrier for products and effectively "extends their service life", making it a key process in the manufacturing of products in fields such as home appliances, automobiles, and electronics.