Glass tempering technique, also known as thermal treatment, is a procedure used to increase the durability of glass by changing its stress pattern. This process involves subjecting the glass to intense heat, and then quickly cooling the glass.

The glass is typically heated to around 600-700 degrees Celsius, depending on the type of glass and the desired level of tempering. At this temperature, the glass is soft and pliable, allowing the manufacturer to apply a stress pattern to it. The stress pattern is what gives the glass its strength and resilience.

After the glass has been heated to the desired temperature, the manufacturing process continues with a rapid cooling process. This is where the glass is exposed to a rapidly cooling air flow that quickly cools it. The rapid cooling process creates a compressive stress on the surface of the glass, which helps to counteract tension in the center of the glass.

The rapid cooling process can be achieved through a variety of methods, including quenching in oil or air quenching. The choice of method depends on the type of glass and the desired level of tempering. Once the glass has been cooled, it is inspected for any signs of defects or imperfections.

One of the key benefits of window tempering is its ability to improve durability. Tempered glass can resist pressure that would break regular glass. This makes it a popular choice for applications where safety is a concern, such as in the building industry and transportation and shipping industries.

In addition to its increased strength, tempered glass also has a number of other benefits. It is resistant to thermal stress without shattering. It also has a greater resistance to scratching and sash restoration is more resistant to corrosion than regular glass.

In conclusion, glass tempering is a process that involves heating and cooling to create a concentrated stress pattern on the surface. This process improves durability, making it a popular choice for applications where safety is a priority.