It may be caused by rapid changes in ambient temperature, where internal stress reaches the breaking limit stress and causes cracks. Below is an introduction to automotive windshield glass: 1. Introduction: The automotive industry and the glass industry belong to two different fields—the former is part of mechanical manufacturing, while the latter falls under light industry. However, from the development history of automobiles, the relationship between the two has become increasingly close. Glass technology has fully integrated into the automotive industry, becoming an indispensable part of automotive technology. Nowadays, research and development of automotive glass are often conducted from the perspectives of safety and aesthetics, continuously introducing new varieties. 2. Function: Laminated glass involves bonding one or more layers of transparent adhesive plastic film between two or three layers of glass, combining the toughness of plastic with the hardness of glass to enhance its resistance to breakage. Tempered glass is produced by quenching ordinary glass to form internal stresses, thereby strengthening the glass. When impacted and broken, tempered glass shatters into small, blunt-edged fragments, reducing the risk of injury to passengers. Zoned tempered glass is a new variety of tempered glass that undergoes special treatment to maintain a certain level of crack clarity upon impact, ensuring the driver's field of vision remains unaffected. Currently, automotive windshields primarily use laminated tempered glass and laminated zoned tempered glass, which can withstand strong impacts.
