Introduction of heat strengthened glass and its advantages and disadvantages by dailone chan


Introduction of heat strengthened glass and its advantages and disadvantages by DAILONE CHAN
Article Posted: 04/21/2013
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Introduction of heat strengthened glass and its advantages and disadvantages

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Toughened glass belongs to safety glass. Toughened glass is a kind of prestressing force glass actually.To enhance the strength of the glass, we usually use chemical or physical methods to form in vitreous surface press stress. When glass bears outside force, first of all it offsets surface layer stress, and improves the carrying capacity and resistance to wind pressure, strengthen the glass itself . According to the degree of toughened, toughened glass can be divided into: 1. heat strengthened glass: tempered degree = 2 ~ 4 n/cm, glass curtain wall toughened glass surface stress is 95 mpa or greater; 2. Half of toughened glass, toughened degree = 2 n/cm, glass curtain wall semi-heat strengthened glass http://www.constructionGlassbiz.com/product/heat-strengthened-glass-Manufacturers-Toughened-Glass-Suppliers.html surface stress is 24 mpa greater 69 mpa or less ; 3. super-strong heat strengthened glass: tempered degree > 4 n/cm Scope of application: because when toughened glass broken, pieces will break into smaller particles and there is no common glass cutter, spiral Angle, which is referred to safety glass and is widely used in automobile, interior decoration, as well as the high floor of foreign open Windows. The advantages of toughened glass: First its intensity is more than common glass . Second is the use of security, increasing its bearing capacity improved brittle quality, even if small shards of toughened glass damage has no acute Angle, greatly reducing the harm of human body; toughened glass be able to bear or endure urgent cold ,urgent hot property has 3 ~ 5 times than common glass, generally can withstand 250 degrees above the temperature changes, have apparent effect to prevent the thermal crack.It is one of the safety glasses. Provide the qualified materials to ensure high-rise building safety guarantee. The disadvantages of toughened glass: 1;the toughened glass can't cutting, and machining, only before toughen to process the shape of the steel processing again. 2;Toughened glass have better strength than common glass, when toughened glass on the temperature change is big,there is the possibility of explosive (their "bursts"),while the possibility of common glass does not exist explosive. 3;Toughened glass surface is uneven . there are slight thickness thinning. Thinning because glass after thermal softening, a strong wind make its rapid cooling, its internal crystal glass gap smaller, pressure big, Usually 4 to 6 MM glass thinner 0.2 -0.8 MM , 8 ~ 20 MM toughened glass thinner 0.9 -1.8 MM. Specific degree according to the equipment to decide, this is why heat strengthened glass can't be the mirror.

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