Automotive machinery knowledge-automotive glass

The glass on the car is mainly used for car windows and lighting fixtures. The basic requirements for automotive glass are:

　　①Transparency. High light transmittance is required, and the perspective image is not deformed.

　　②Mechanical strength. It is required to have a certain impact and bending strength, and it will not be broken or deformed under the wind pressure when driving at high speed. The surface of the glass should also have a certain degree of hardness, so as not to scratch the surface and obstruct the view.

　　③Safety. It is required to use safety glass, which can only be broken after being impacted, or the fragments are not sharp, so as to minimize the damage to the occupants or pedestrians. At the same time, a certain degree of visibility should be maintained after the collision to avoid obstructing the driver's line of sight and causing a second accident.

　　 Therefore, developed countries have long stipulated that the front windshield glass of automobiles must be laminated glass. my country's safety standards stipulate that the front windshield glass of a car must be laminated glass or partly tempered glass, and other car windows should be tempered glass.

　　 Therefore, ordinary glass and plexiglass are not suitable for automobile glass.

　　 The color of automobile glass is also changing. The original colorless and transparent glass has been gradually replaced by bronze glass, green glass, and blue glass that reduce the fatigue of the driver’s eyes.

　　The development direction of automotive glass is: lightweight (thinning), safety, beauty, and multi-function.