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How to evaluate the surface finish after Stainless Steel Electrolysis polishing?

Publish Time: 2024-05-15
Surface finish evaluation after Stainless Steel Electrolysis polishing is a critical step to ensure product quality and meet customer needs. Below is a detailed explanation of surface finish evaluation after Stainless Steel Electrolysis polishing:
First of all, it is necessary to clarify the standard requirements for stainless steel surface finish. Generally speaking, stainless steel surface finish standards are usually expressed by the Ra value. The Ra value is an important parameter of surface roughness. It is defined as the average value of surface height deviation per unit length, in μm. The standard for stainless steel surface finish requires that the Ra value be in the range of 0.8-1.6 μm. This standard can ensure the smoothness and brightness of the stainless steel surface.
Secondly, evaluating the surface finish after Stainless Steel Electrolysis polishing can be achieved through a variety of methods. A common method is to use a surface roughness measuring instrument, which can directly measure the Ra value of the surface to determine whether its smoothness meets the standard. Another method is to conduct a visual inspection to evaluate the smoothness and brightness of the surface by comparison with a standard sample. In addition, equipment such as microscopes and scanning electron microscopes can be used for more detailed observation and measurement of the surface.
There are a few other factors to consider when making your assessment. For example, the thickness of the passivation film is one of the key indicators to judge whether the quality of electrolytic polishing is passed. Generally speaking, the thickness of the passivation film polished by Stainless Steel Electrolysis should be between 0.5-5 microns. The better the coverage effect of the passivation film, the better the corrosion resistance and stability of the surface. Therefore, while evaluating the surface finish, it is also necessary to detect the thickness and coverage effect of the passivation film.
Finally, to ensure the accuracy and reliability of assessment results, appropriate tools, equipment, and reagents need to be used and standard operating procedures must be followed. At the same time, it is also necessary to establish a polishing quality record and traceability system for long-term tracking and monitoring of polishing quality.
In summary, evaluating the surface finish after Stainless Steel Electrolysis polishing is a comprehensive process that requires consideration of multiple factors and indicators. By selecting appropriate assessment methods and tools, and following standard operating procedures, the accuracy and reliability of assessment results can be ensured, thereby providing customers with high-quality and satisfactory finished products.
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