Development of film thickness of flat pasting machine
In case of coating defects (coating defects) such as uneven film thickness, convex lines, waves, ribbon stripes and fat edges, it will pasting machine have a great impact on the quality. There are many reasons for defects. In addition to the material supply and the speed of the substrate, it also includes the rotating action and gap of various rollers of the coating device (coater), the position of the workpiece (substrate), etc.
In recent years, with the high development of thin film and multi-layer coating, the device and process are becoming more and more complex. In this trend, the following will introduce the online detection solutions indispensable for the maintenance of high film-forming accuracy and quality.
The coating of opaque materials such as solar cell electrode materials, as a means to realize product thinning, high performance and high production efficiency, is being applied in various fields. In recent years, more and more materials are used for wet coating. The measurement that is not affected by the surface state of the coating surface is essential to maintain and manage the stable coating quality.
Measurement of coating thickness of opaque materials
Materials using wet coating are becoming more and more diversified, including materials with rough surface and not easy to reflect laser. For thickness measurement and detection to ensure coating quality, online non-contact measuring instrument supporting diversified coating surface and production speed is required.
Whether transparent or pasting machine opaque materials, the premise to achieve stable and high-quality coating is to ensure the stability of substrate (mesh roll) and equipment. The measurement and monitoring of various roller gaps, rotation and swing that may lead to poor coating and mounting are as important as the measurement of coating and mounting surface.
