In the hydraulic machinery, hydraulic surface technology is commonly used to strengthen the traditional electroplating chromium-plated hardware approach to achieve the capability of corrosion products, high hardness, wear-resistant. However, with the hydraulic machinery manufacturing, repair in the field of rapid development, related to the technical level to strengthen the surface of the urgent need to resolve the issue, chrome-plated hardware technology behind the production process reflects the inherent flaws more and more apparent, in the parts to strengthen Surface facilities Plating processing of raw materials and components harmful gases varying degrees of damage to the site operators, and secondly, the lack of performance in the implementation of complex processes, inefficient, energy-intensive, heavy pollution and damage is obvious.