We all know that the glass used in automobiles nowadays is toughened glass. It can withstand the strong impact brought by the bumps of automobiles and is intact. It ensures clear driving vision and the safety of passengers. Although automotive glass is toughened glass, automotive glass tempering furnace manufacturers said that according to different locations of the safety requirements and different degree of toughening can be divided into three categories.

Three Kinds of Automotive Glass

1. Toughened glass:

Simply speaking, toughened glass is produced after the original glass is heated, blown cold air and other technological processes. After toughening, ordinary glass not only increases its strength, but also changes its internal structure. Automotive fiberglass tempering furnace manufacturers said that when the glass is broken by destructive external force impact, it will not form a sharp edge, and break into many small pieces of corn grain size. In technology, the size of these pieces is required. Generally, such as corn grain size, they can not be too big or too small, too big to form sharp edges, unable to play a safe role. Used; too small will form powder, may hurt the eyes of passengers. It is suitable for making common tempered glass for side windshield and rear windshield.

Regional toughened glass:

Generally, it is used as front windshield in automobiles. Its safety is not as good as laminated glass, but the cost is lower for automobile manufacturers. Ordinary tempered glass is not suitable for front windshield, because when it is broken, it turns back into a pile of broken particles and falls like a waterfall, blocking the driver's sight, which is not conducive to dealing with emergency situations. In this way, some mid-and low-grade automobiles choose zone toughened glass as front windshield. This kind of glass has a low repairable rate and is usually replaced directly. The front windshield of some middle and low-grade cars adopts zone toughened glass.

3. Laminated glass:

It is made of two or more layers of glass glued together. It is safe glass, suitable for use as front windshield glass, automotive glass tempering furnace manufacturers said that it is safe because there is a layer of PVB film between the glass. PVB film is a kind of high polymer material with high adhesion and flexibility. When the glass is broken, the PVB film will stick the glass fragments together, so that the glass fragments will not scatter and injure people, and ensure that the driver has a certain vision to deal with emergencies. In addition, the flexibility and penetration resistance of laminated glass after adding PVB film are enhanced, which can prevent the front row drivers from rushing their heads out of the front windshield due to too much inertia during emergency braking to a certain extent (such news reports have been made in the absence of seat belts). Sandwich glass suitable for front windshield.

Glass tempering furnace manufacturers said that the surface of automobile glass is transparent, and there is no difference. In fact, every part of the car glass has a certain function. According to the different cost, automobile manufacturers install different tempered glass in different parts. For example, all tempered glass can be used for side window glass, because in case it breaks, it will not hurt the passengers and will not block driving. Driving sight, the front windshield needs area toughened glass to ensure a certain clarity of sight when the glass is broken. Generally, the front windshield of high-end vehicles is made of laminated glass with high safety.