What is the reason and solution for glass-broken-inside-oven for glass tempering furnace?

1. If the float glass sheet contains nickel sulfide stones. It can cause glass broken inside oven, especially for thick glass, so using high-quality raw glass is a basic requirement to avoid glass-broken inside oven.

2. During the cold processing stage of glass raw materials, if the glass does not meet the process requirements such as punching or slotting, it can also cause damage to the glass, and the glass is prone to breakage during the heating process. So it is necessary to avoid damage to the glass during the cold processing stage and do a good job of edge grinding.

3. If the temperature of the heating furnace is set too high when setting the tempering process parameters, thick glass sheet will also cause a large temperature difference between the glass surface and its interior in an excessively high heating environment, resulting in glass breakage in the heating furnace; At this point, we should strictly follow the corresponding tempering process parameters for different thicknesses of glass.

4. If the speed of glass entering the furnace is too fast or the swinging speed of glass in the heating furnace is too fast, it can also cause collision between glass and ceramic rollers in the heating furnace, causing damage to the glass and making it easy to break during heating. At this point, we can reduce the speed of the glass entering the furnace and the swinging speed of the glass in the heating furnace, so that the glass can avoid collision with the ceramic rollers and reduce the occurrence of furnace explosion.