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Heat treated Glass
The process of heat-treating glass is taking annealed glass, cutting it to its desired size, transferring the glass to a furnace and heating it to approximately 1,150° F. Once at this temperature, the glass exits the furnace and is then rapidly cooled, or quenched. Air is blown onto the glass surface on both sides simultaneously. This cooling process creates a state of high compression at the glass surfaces while the central core of the glass is in a compensating tension. The only physical characteristics of the glass that change are the improved strength and resistance to thermal stress and shock.
Tempered Glass
Tempered glass is produced by heating annealed glass in a furnace to approximate 700° C and rapidly blowing cool air onto its surface. This rapid cooling process is the key element in the physical changes in annealed glass; it creates additional stresses within the glass. Glass with fully tempered surfaces is typically four times stronger than annealed glass and two times as strong as heat-strengthened glass of the same thickness, size and type. Therefore, it is more resistant to thermal breakage and is capable of whithstanding higher windloads.
Features:
- Small Harmless Fragments
- High Strenght(surface compression stress>69Mpa)
- Thermal Stability
Specifications:
Maximum Size: 3300mm x 12000mm (130”X4724”)
Thickness: 3mm-25mm (0.12” -0.98”)
Certification:
BS 6206, Class A
Heat Strengthened Glass
The process of heat strengtheneding is similar to that of tempereing. Heat-strengthened glass is twice as strong as annealed glass of the same thickness, size and type. If broken, heat-strengthened glass will break into large shards similar to annealed glass. Because of this, the tendency for the glass to vacate the opening is reduced. The surface compression of heat-strengthened glass is between 24Mpa to 52Mpa.
Features:
- Stronger than anneal glass
- Heat soak test is not needed
Specifications:
Maximum Size: 3300mm x 12000mm (130”X4724”)
Thickness: 5mm-12mm (0.19” -0.47”)
Heat Soaking
Fully tempered glass may break without warning due to the expansion of nickel sulfide inclusions
(NiS) present within float glass. To avoid the risk of spontaneous breakage in fully tempered glass, a common practice is to avoid the use of tempered glass whenever possible. Although the incidence of tempered glass breakage due to these inclusions is rare, greater publicity of their occurrence has resulted in an increased awareness of this phenomenon. Heat soak test can provide the added assurance that significant spontaneous breakage will not occur
Specifications:
Size of Oven: 3500mm(H) x 12000mm(D)
Certification:
BS EN 14179-1:2005, APP-37 Clause 17
Product Conformity Certification Scheme for Heat Soak Tempered Glass Technical Requirement FaG-TG 002;
Laminated Safety Glass
Laminated glass units are constructed with two plies of glass permanently bonded together with one or more interlayers. The most important characteristics of laminated glass are fall-out protection due to the ability of the interlayer to support and hold the glass when broken as well as the reduced ability to penetration the opening. They filter out up to 99% of UV rays* that
can contribute to the fading and degradation of home furnishings. They also can reduce the perception of irritating outside noise up to 50% more than ordinary window glass. *Up to 380 nanometers.The ability to resist various kinds of penetration is dependent upon a number of factors including thickness of the glass and the type of interlayer selected.
* Color PVB
* SGP
* DG
Ceramic Fritted Glass
Ceramic Fritted Glass is produced by silk-screening a selected color and pattern onto the surface of the glass, then either tempering or heat strengthening, enabling the enamel to firmly adhere to the glass surface.
Suitable to be coated and combined to form laminated, insulating glass etc. But all Ceramic fritted glass products are tempered or heat-strengthened; therefore they cannot be further cut or abraded in any way.
Modem designs need opaque, translucent, and special patterned glass for decorative use. Enameled Glass has gained more and more popular in architecture, creating unique styles. ◆
Features:
- Indestructible enamel bonding, non-porous surface with excellent scratch resistance, easy for cleaning
- Variety of colors and patterns that can be customized on request
- Sun Shielding
- Spandrel Blocking
Curved Glass/ Curved Tempered Glass
Curved glass is made by heating annealed glass to its softening temperture, then bended to the shape by weigh and outside force in special molds and finally cool down by nature. Curved tempered glass or curved heat strengthened glass is made of annealed glass heated to its softening temperature then bended to the shape by weight and outside force and finally cooled down rapidly by cleaned compressed air.
Specifications:
Maximum: 10000 X 2400mm
Minimum Radius: 850mm(12mm)
IGU
An IGU consists of two or more panels of glass separated by an air space with a spacer around the perimeter. The spacer contains a desiccant which eliminates moisture in the cavity. The combination of the two panels of glass and trapped air is what makes the IGU a superior energy efficient method of glazing. The whole unit is hermetically assembled by a double barrier sealant.
An IGU with a Low-E coating effectively enhances performance. The heat insulation effect could be further improved if Argon or other special gases are filled in the cavity, we adopted a fully automated production line for IGUs, which includes automatic coating deleting, cleaning, spacer bending, gas filling and sealing.
Low-E glass:
1. Online Hard-coated Low-E:
* Can be used as single glazing/ laminated glass/ IGU
* Stable and long life performance
* high durability & easy processing (cutting, laminating, tempering, bending and screen printing)
Specifications:
Maximum Size: 3300mm X 5100mm
Thickness: 3mm-15mm (0.12” -0.59”)
2. Offline Soft-coated Low-E :
Offline low-E glass is produced by Vacuum Sputtering layers of coatings, inlcuding one or two layers of silver on glass.
Features:
- Anti-condensation resistance:according to national standard, hollow glass dew point must be below -, hollow glass air layer absolute guarantee dry non-condensing.
- Noise reduction :normal IGU glass can reduce noise 30-35 db or so, filling the argon and special gas can further improve the heat insulation and sound insulation performance.
- Thermal insulation :Coated low-e film layer of insulating glass can more effectively block radiation heat energy .