[Medium glass] 1 Formation cause: Due to the contamination of the tin liquid, it will evaporate into the upper space of the tin bath, and the quality defects will be formed after the condensation accumulates and falls onto the glass plate. According to the size and shape of the light change and the depth dropped onto the glass plate, the formation position of the light change can be determined, and specific measures are taken. Under normal circumstances, if the light changes into a strip shape or a sheet shape, when the glass sheet is pressed deeper and larger, it is formed by the water bag in the front area; if the light changes into a small sheet shape, when the glass sheet is pressed into a shallow layer It is formed by a medium temperature water bag; if the light is small and the shape is not regular, and the quantity is large, it may be formed by the tin trough top cover; and the light generated by the flow path becomes deeper and not too long. 2 Solution: Increase the tank pressure and keep it stable; regularly purge the flow channel, water bag, top cover, etc., usually once a month or so. Usually, the plate should be treated in a targeted manner for the form of defects. Of course, it is more important to pay attention to the sealing of the tin bath. Fireproof Cotton Viscose Fabric fireproof aramid fabric, flame resistance, durability, safety applications SHAOXING BIGU TEXTILES CO.,LTD. , https://www.fireprooftex.com