Tempered glass is
manufactured through heat-strengthening process. Strength of
Tempered Glass is roughly four times of the regular float glass.
Manufacturing Process
- Float glass is heated
to 1150ºC with tempering oven and then rapidly cooled with
high-pressured air at high airflow rate.
- Heat-treated glass has
increased has increased resistance to impact, mechanical loads
and thermal stress breakage as compared to regular float glass
and heat-strengthened glass.
Characteristics
- All properties remain unchanged as compare to float glass
except for its strength and breaking pattern.
- Due to higher amount of residual stress, Heat-strengthened
glass breaks into smaller pieces than that of float glass and
heat-strengthened glass when broken. Making it safer than the
other two glass.
Thermal shock resistance
- Temperature
differential of 204ºC to fracture a sheet of
¼” tempered glass.
Where to use tempered glass?
- structural planar glazing
- show-windows of shops and shopping centres
- partitions walls
- glass doors
- doors of saunas
- fencings of stairways and parapets
- roofs and porch-canopy top
- balcony glazing
- winter gardens
- lanterns, flood lights
- hothouses
- shields of fireplaces and furnaces
- doors of gas ovens and electric stoves
- freezing compartment
- furniture
- bullet-proof glass
- sidewall support panels of escalators
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