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Bend Toughened Glass
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Bend Toughened glass is an extremely strong glass which has been thermally heat treated to induce compressive stresses of 11000 to 20000 psi on the surfaces and edge compression of not less than 9700 psi.
Bend Toughened glass cannot be cut or altered and all cutting, edge grinding and holes etc. are made before tempering.
RAMESHWARAM GROUPS has 8 glass tempering plants of various sizes, capabilities and features to be able to temper a large range of thicknesses and sizes suitable for various applications and Low-E glasses.
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| Process |
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RGS Toughened and Bend Glass tempered glass is made on state-of-the-art, electrically heated horizontal furnaces, which heat the glass to an uniform temperature of approximately 700ºC. Ceramic rolls convey the glass through the furnace at speeds regulated to ensure temperature uniformity and minimal optical distortions. When the glass exits from the furnace, It is rapidly cooled by a series of air nozzles. This rapid cooling puts the glass surface into a state of compression, with the center core in tension. In the final Stress Distribution, the sum of the forces in compression equals the forces in tension.
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| Bend Toughened glass gains its added strength from these compressed surfaces. However, if the surface is penetrated by a scratch or an impact, the glass will break into a number of small particles. The heat treatment process for toughening glass requires that all fabrication be completed prior to toughening. Any attempt to cut, drill, grind or sand blast the glass after toughening may result in glass breakage. The surface hardness is not changed by the heat treatment process. The glass surface after heat treatment will have the same resistance to surface damage as annealed glass. Tempering process does not change in any way the light transmission and solar radiant heat properties of glass. |
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Characteristics
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High Thermal Shock Strength : Can with stand temperature differentials upto 250ºC.
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Safey : Will break into small, relatively harmless fragments. This substantially reduces the likelihood of injury to people as there are no jagged edges or sharp corners.
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Light and Heat transmission properties : Do not change due to tempering and remain the same as in unprocessed glass unless laminated or double glazed (see: Insulating Glass)
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Alterations : Bend Toughened glass cannot be further cut, ground, drilled or worked upon. All these processes are completed prior to its tempering, in accordance with your drawings, sizes or templates.
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Availability
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Maximum Size
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1220 mm X 2440 mm
3500 mm X 5000 mm
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| Minimum size |
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220 mm diagonals |
| Thickness range |
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4 mm to 12 mm |
| Colors |
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Clear, Bronze, Gray, Green, Blue, Reflective & Low-E |
| Bent Tempered |
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2500 mm (width) X 3500 mm (straight edge) |
| Minimum radius |
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1100 mm |
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Applications
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All applications, where strength and safety are the key requirements like -
1. Curtain walls and structural glazing.
2. Bolted structural glazing
3. Doors and Partitions
4. Large windows
5. Shower installations
6. Squash courts
7. Furniture
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8. Automobiles and Railways
9. Kitchen appliances
10. Lighting fixtures
11. Ships and boats
12. Fire knockout windows
13. Solar Panels
14. Fireplace Screens |
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Precaution
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Bend Toughened glass (also known as toughened glass) is an extremely strong glass which has been thermally heat treated to induce compressive stresses of 11000 to 20000 psi on the surfaces and edge compression of not less than 9700 psi.
Bend Toughened glass cannot be cut or altered and all cutting, edge grinding and holes etc. are made before tempering.
RAMESHWARAM GROUPS has 8 glass tempering plants of various sizes, capabilities and features to be able to temper a large range of thicknesses and sizes suitable for various applications and Low-E glasses.
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