[Medium glass] The residual stress of the glass should be as close as possible to the ideal residual stress. If it is too large, the following phenomenon will occur. 1. The common phenomena of excessive tensile stress at the edge are: edge tightness, frying edge; easy multi-angle; the edge is not easy to knock down, and the edge after the knocking edge has a fracture similar to that formed by the fried edge; the artificially assisted edge knocking is easy to the plate. extend. 2. Common phenomena of excessive compressive stress at the edge are: edge loose, roll; easy to corner; when knocking edges, the edges are fragile, often have blasting; cross-cutting is easy to burr, cross-cutting time is not cracked at the edge Straight, easy to be a small triangle of Y shape. 3. When the edge tensile stress is too large and there is compressive stress in the middle, the crack is easy to extend into the plate when artificially assisting the edge knocking. In severe cases, the crack is inwardly expanded and then appears as a longitudinal crack shape; easy longitudinal cracking; broken. 4. When there is compressive stress in the middle, cross-cutting is prone to cracks, easy to split longitudinally, and always penetrate into the annealing kiln, cross-cut without cutting marks, and under the board is easy to blast. High-Speed Tissue Paper Felt,Paper Felt,Polyester Paper Felt,High Speed Paper Making Felt Dongguan Yexing Paper Felt&Wire Co.,LTD , https://www.yexingfelt.com