Glass edging machine​thermal stress cracking

Glass is directly exposed to the sun. It absorbs the infrared and visible light of the sun and converts it into energy in the body, causing thermal expansion in the glass body. The internal structure of the glass part of the aluminum frame is not caused by the same solar radiation. The uneven heating of the glass, the thermal expansion of the internal thermal stress forming the glass, the edge zone of the Zhang Yingli glass, and the tensile stress exceeding the tensile strength will cause the glass to break. The thermal stress of glass rupture is due to the splitting of the edges of the glass, the edges are neat, right-angled, a small number, and the middle rift of the glass is a curve instead of a straight line. The glass is embedded in the aluminum alloy frame, and the glass inlaid part cannot be exposed in the same light box, thereby exposing the overall heating unevenness, thermal stress, thermal expansion of the glass, tensile stress on the edge of the glass, and tensile stress greater than the tensile strength of the glass, breaking will cause the glass . Thermal stress cracking can be identified from the following characteristics: 1. The broken edge of the glass is broken cleanly, a single or double winding broken wire. 2. The broken line of the glass is on the edge of the glass in a straight line, or can be flexurally stressed, or caused by defects in the glass edge. 3. To the fracture line in the middle of the curved glass.