More advice from LandGlass, this time about the main factors leading to uneven heating in glass tempering furnaces.
- The fault of the heating element in a glass tempering furnace will cause it not to work properly, resulting in uneven heating.
- Failure or inaccurate calibration of the thermocouple(temperature sensor) can also lead to uneven heating in the tempering furnace.
- The glass is placed unreasonably on the rollers. Since ceramic rollers are poor heat conductors, repetitive use of a certain area of the heating furnace will lead to temperature reduction in the area. In the meantime, the area of ceramic rollers not carrying glass will have a relatively higher temperature, resulting in temperature differences between the areas and uneven heating for the glass.
- Poor edge sealing of the heating furnace will cause more local heat loss at the edges, resulting in uneven heating in the glass tempering furnace.