The quality evaluation of hot plated wire coating surface mainly includes surface finish, surface purity, surface smoothness and surface hardness. These indicators are described below:
Finish: The finish of the metal film surface is one of the important indicators to evaluate its surface quality. Good metal surface finish can effectively improve the surface gloss and texture of the product. The common methods of finish evaluation include: finish meter measurement, surface defect detection and surface topography analysis.
Purity: The purity of the coating surface is one of the important indicators to ensure its performance. A good coating must have a high purity, otherwise it will not only affect the corrosion resistance, but also may lead to poor corrosion resistance, large size deviation and other problems. Common purity evaluation methods include chemical analysis and X-ray fluorescence analysis.
Flatness: Surface flatness is an important index to evaluate the surface quality of the coating. Compared with machining, coating preparation can achieve higher surface smoothness because the coating can cover small size defects on the surface. The common methods of flatness evaluation include morphology observation and morphology analysis.
Hardness: Surface hardness refers to the hardness of the surface of the metal film. Common hardness evaluation methods include nano-indentation, microhardness tester and wear test. The increase of surface hardness can effectively improve the wear resistance and corrosion resistance of the coating.
In summary, the discussion on the coating form of hot plating wire and its surface quality evaluation index can not only provide a standard for judging the quality of coating for production, but also improve the application level of hot plating wire technology and product quality, and promote the coordinated development of various fields of industry.
Post time: 04-02-24