The fineness plate is a simple instrument for detecting the fineness of pigment particles. The general measuring range of the fineness plate scraping sample is 0-25, 0-50, 0-100 and 0-150. If the filler particle is 25 microns, 0- 25 range?
The answer is definitely no. The groove of the scraping sample of the fineness plate is getting finer and thinner from top to bottom. The better state is that the particles are just in the middle, so that it is more convenient to observe or scrape the sample, and it is also clear to the naked eye.
Therefore, if the estimated fineness of the filler is 25 microns, it is a good choice to use a scraper Fineness Meter of 0-50 microns. Understood?
In addition, there are two points in the process of using the fineness plate: 1. Pay attention to the proper angle between the scraper and the scraper during the fineness scraping process, and then scrape it off. As shown below.
2. When reading the fineness, note that the angle between the eye and the board is about 30°. As shown below
