Chemical Strengthening - Berliner Glas KGaA Herbert Kubatz GmbH & Co. - #1

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Berliner Glas KGaA Herbert Kubatz GmbH & Co • Waldkraiburger Str. 5 • D-12347 Berlin techglas@berlinerglas.de • Phone: +49 30 60905-0 • Fax: +49 30 60905-100 www.berlinerglas.com Chemical strengthening e0407 c Chemical Strengthening Product If glass is subjected to a defined salt bath treatment, ion exchange will produce strong compressive stress in a thin surface layer which significantly improves the glass toughness and strength. Chemical strengthening is mainly used to strengthen thin glass up to 3 mm thick, as flatness is difficult to control if thermally toughened. Moreover, surface flatness is maintained during the chemical strengthening process. The manufacturers of photocopiers, solar modules, microwave ovens, measuring apparatus, lighting, and automobiles as well as those of many other flat glass applications take advantage of this possibility to use highly resistant glasses in their products. Chemically prestressed glass has the following advantages:
Improved impact resistance
Improved flexibility strength
Improved scratching resistance
Improved resistance to temperature changes The following advantages are the result of using thinner but strengthened glass
Improved transmission
Reduced weight
Reduced mounting costs Material Almost all glass with high sodium oxide content can be toughened by ion exchange techniques. Flat glass
Grey glass
Bronze glass
Machine-drawn Soda-lime glass
Borosilicate glass
B 270
and different colored glasses Optical glass
BK 7
ZKN 7
and others Other glass
Diffusers
Cast glass
Pressed glass parts The glass may be finished, bent, ground, frosted or etched in any way. Specifications for chemically strengthened float glass
External dimensions: up to app. 2000 x 1000 mm or 1000 mm Ø at BG/Berlin
Thicknesses: 0.3 mm - 19 mm
Surface stress: ó >300 N/mm²; ó >100 N/mm² for borofloat
Penetration layer thickness: D 15 -25 ìm Other penetration layers on your request.