Requirements for the use of coating thickness gauges
In order to better use the coating thickness gauge, generally the application requirements of the coating thickness gauge will be mentioned in the product description, so as to avoid inaccurate measurement results of the coating thickness gauge due to improper operation by users. For this reason, the next editor will introduce the application requirements of the coating thickness gauge.
Application Request for Coating Thickness Gauge:
1. For the metal characteristics of the magnetic substrate, the magnetism of the base metal of the standard sheet is the same as that of the test piece base metal, and the surface roughness is also similar. For the eddy current method, the electrical properties of the base metal of the standard piece and the base metal of the test piece are also similar.
2. To ensure the thickness of the base metal, check whether the thickness of the base metal exceeds the critical thickness. If not, you can use 1 point or 2 points to calibrate.
3. The edge effect cannot be measured at the gradual change close to the specimen, such as edges, holes and inner corners.
4. The curvature cannot be measured on the curved surface of the workpiece.
5. The readings of each measurement may not be exactly the same, generally due to the operation method and the uniformity of the substrate, so it is necessary to take several readings in each measurement area when using a coating thickness gauge. In addition, the uneven thickness of the covering layer also requires us to perform multiple measurements in any given area. In addition, the roughness of the surface will also affect the measurement results.
6. Before using the coating thickness gauge to measure the coating, first remove any attached substances on the surface, such as dust, grease and corrosive products, etc. When cleaning, be careful not to damage the coating to be measured.
The above content introduces the application requirements of the coating thickness gauge, and I hope it will be helpful for your application.
