Method for Calculating Thickness of Plating Coating
The plating coating is an important part of the surface treatment of components, and its thickness testing is crucial for product quality. Various components require different thickness of plating coating, and the process of plating code and technology must be strictly controlled in the production process to ensure its thickness. The measurement of coating thickness is of great significance to the quality of coating surface, and the calculation method shall be determined according to the specific circumstances.
Generally, the thickness of the plating coating can be calculated by measuring the area of the plating coating as follows:
1. For components with fixed finite surface, the volume of the plating coating can be measured at one time and the average volume can be obtained. The batch number and date of the sample inspection and the total volume of the coating layer can be used to calculate the thickness of the coating layer.
2. For metal substrates or components with regular shapes and sizes, a coating thickness ruler or a weightless model can be used to measure the thickness of the coating layer.
3. For large casting products or components with irregular shapes and sizes, the surface plating area can be measured first, and then a certain common area or a series of points can be chosen from different parts of the surface plating area to measure the thickness of the coating.
In addition, there are also some indirect methods to obtain the thickness of the plating coating, such as X-ray emission thickness gauge, ultrasound thickness gauges, laser thickness gauges, etc., which can be used to measure the thickness of the plating coating in the absence of direct measuring instruments.
The above are the several general methods to calculate the thickness of the plating coating. Different methods should be chosen according to the actual product under inspection.
When calculating the thickness of the plating coating, it should also be noted that the thickness of a particular plating coating may vary in different parts of the same sample, and the average value of the thickness should be measured for comparison with the actual standard. Moreover, when measuring the thickness of the plating coating, it is also necessary to ensure that the substrate is clean and free from surface dirt or dust.
In a word, plating coating is widely used in industry, and its thickness measurement is also of great significance for product quality inspection. Therefore, it is necessary to have a proper method for calculating the thickness of the plating coating. The above introduction summarizes several calculation methods for the thickness of the plating coating. The industry can choose the appropriate method according to the actual conditions.
