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Views: 404     Author: Site Editor     Publish Time: 2019-07-20      Origin: Site

Car glass is like a protective umbrella, covering one third of the surface area of the car. It protects us from wind and rain, protects us from UV rays, and gives us a good view to concentrate on driving as well.

However, one of the most fragile parts of the car is the window glass, which often breaks earlier than other parts when accidents happen.

Today we're going to talk about the evolution of automotive glass.

History of Car Window

1. In the beginnings, there is no glass in the car. As a result, it was found that cars could only travel at a very low speed, because insects and other debris from the road can splash your face. Or on the contrary, early cars did not have windshields, which was appropriate for their low speed. Drivers and passengers can only use goggles, which is very inconvenient.

2. With the development of automobile mechanical properties, the speed becomes faster and faster. The harsh wind and flying debris hitting the driver's face became a serious problem. So in the 1920s, automakers added a windshield to the cars.

However, these early windscreens are hand-cut from flat glass. Unfortunately, when the glass breaks, the plate breaks into large, sharp, dangerous shards that can hurt the occupants, which is not accorded with the original intention: safety.

3. In the 1930s, Henry Ford, the founder of the ford motor company, was injured when a piece of windshield shattered, prompting ford to invent laminated safety glass. He put two pieces of glass together, separated by a layer of plastic, to make glass like a sandwich. The idea accorded with the original intention nicely that windshields are meant to make driving safer, because the plastic lining prevents the glass from falling like a knife on the occupant and injuring the occupant.

4. In the late 1950s, people began to use fully tempered glass as windshield glass. However, it was later found that once the glass broke, the fragments of the fully tempered glass could not guarantee the driver's vision. In addition, small particles and debris cause serious damage to the eyes, which makes the driver unable to take effective braking measures, leading to the occurrence of secondary accidents.

5. In the 1960s, people stipulated that all tempered glass should not be used as windshield glass, which greatly reduced the casualties caused by glass.

Car Window Nowadays

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There are three main types of automotive glass.

1. Sandwich glass. It consists of two or more layers of glass bonded together with one or more layers of transparent adhesive material. In general, it is safe and resistant to heat and light.

2. Tempered glass. Tempered glass is a kind of high strength glass. It has good wind pressure resistance, cold and heat resistance and shock resistance.

3. Zone-tempered glass. As a new type of tempered glass, when it breaks, the cracks in its glass can be held together. In the same time, the driver's visual field can be unaffected.


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