Item: Tempered Glass Heat Soak Treatment 010
Model No.: ZNG-TGHST010
Dimensions :maximum size 2440mm×5000mm
Thickness :4mm - 19mm
Tempered glass is destructed without any external mechanical force,
which called self-destruction. Currently self-destruction of
tempered glass is unpredictable and inevitable. In order to reduce
self- destruction as much as possible, ZNG Glass Co., Ltd. adopts
international advanced technology-heat dip processing stove.
Surface and edge processing of glass.
Tempered glass is put into dipping stove and heated, and finally
cooled down after heat preservation. After above processions,
vulcanized nickel contained in tempered glass reaches the stable
condition, and stress of interior glass tend to equilibrium, thus
reduce self-destruction of tempered glass. Heat dipping can make
particles or bubbles inside glass destroyed during processing. Thus
self -destruction of tempered glass can be largely reduced after
heat dipping treatment.
Main factor for self-destruction of tempered glass
Surface and edge processing of glass
During processing of tempered glass, vulcanized nickel crystal
existed in interior glass will transfer to mini-size
High-temperature alpha crystal when excess of 380℃. During cooling
down, this kind of alpha crystal is frozen down not transferring to
low-temperature beta crystal. With time elapsing, alpha crystal
gradually transforms as beta crystal. When alpha crystal
transformed to be beta crystal, its expanding size produces
additional tensile stress. The double increment of stress intensity
causes self -destruction of tempered glass. This is the main factor
of self -destruction of tempered glass.
The other factors of self-destruction tempered glass: If the
different shape glass and the drilled hole glass are easy to
rupture, the installation process armored glass to support on both
sides forms in the condition, the glass transporting and the
installment, the maintenance process which the influence, the wind
load computation is smaller than actually occurs on the other hand,
deeply scratches, on the one hand to the glass surface explodes the
mouth to explode and so on.
In accordance with standard DIN18516.
Tempered Glass Heat Soak Treatment Images