The bending principle of a flat bending tempering furnace involves the process of heating flat glass to a specific temperature, allowing it to become pliable, and then bending it into a desired shape before cooling it down to temper the glass. This process is widely used in the production of curved or bent tempered glass, which is commonly used in automotive, architectural, and various other applications.
Bending principle of flat bending tempering furnace
Flat bending tempering furnace
1. Heating the Glass
Heating Process:
The flat glass is first placed on a roller bed or conveyor inside the tempering furnace.
The furnace heats the glass uniformly to a temperature typically between 600°C and 700°C, which is above the glass’s softening point but below its melting point.
The heating is done in a controlled manner to ensure that the glass becomes soft and pliable without losing its shape or developing surface defects.
2. Bending the Glass
Gravity Bending:
In some systems, the glass is allowed to sag under its own weight into a pre-shaped mold or curved rollers as it softens. The mold defines the final shape of the glass.
The glass conforms to the mold’s curvature as it is gradually bent into the desired shape.
Press Bending:
In other systems, mechanical presses or pneumatic devices are used to apply pressure on the softened glass, forcing it into the desired shape against a mold.
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