Treatment method for mirror surface of stainless steel manhole cover

According to the complexity of stainless steel manhole cover products and different user requirements, mechanical polishing, chemical polishing, electrochemical polishing and other methods can be used to achieve the specular luster. Now I will introduce the advantages and disadvantages of these three methods for your reference:

1. Mechanical polishing has good leveling performance, high brightness labor intensity, serious pollution, difficult processing of complex parts, low gloss, high investment and cost, simple parts, medium and small products, and complex parts cannot be processed. The gloss of the whole product is not consistent, and the gloss retention time is not long.

2. Chemical polishing has low investment, complex parts can be polished, high efficiency, fast speed, insufficient brightness, polishing fluid needs to be humidified, there is gas overflow, and wind-adaptable equipment is required. For complex products, products with low brightness requirements can be processed in small batches.

3. Electrochemical polishing can achieve mirror gloss, maintain it for a long time, have stable process, less pollution, low cost and good anti-pollution. Large one-time investment, complex parts need to be equipped with tooling and auxiliary electrodes, and mass production needs to cool and dirty products. It is required to keep the mirror light and bright products for a long time. The process is stable, easy to operate, and can be widely used.