Assortment
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Product assortment
Double-capped fluorescent tubes for ambient lighting
Double capped fluorescent lamps, colored
Double capped fluorescent special purpose lamps, ultraviolet
High pressure mercury arc lamps
Blended light lamps
High pressure discharge DRLF lamps
High pressure sodium lamps
High pressure sodium lamps with two discharge tubes
High pressure mercury arc metal-halide lamps
Starters
Glassware, semiproducts

Glassware, semiproducts

С (С) - glass
L (Л) - lamp glass
40 and 96 - index of linear thermal expansion in the temperature range of +20°С ÷ 300°С

CL 40, glass high in SiO2, low in alkaline metals and significant amount of B2O3 is called borosilicate glass. This is electron-tube glass for light sources.

Boric anhydrate acts as flux for silicon oxide that may result in rapid reduction of alkaline metal in a batch without temperature increase.

The main characteristic of the glass is freeze-thaw resistance.

The glass is used for production of:
- tubes (20- 45 mm in diameter, wall thickness – 0.8- 1,5 mm , length – 500 -2000 mm , 0,35 % deflection);
- light bulbs for DRL, DNaT lamps;
- tubular and cylindrical light bulbs made by blowing ( diameter 38- 56 mm , length 150- 280 mm );
- сustom-made light bulbs (diameter up to 120 mm , length up to 200 mm ).

SL96 lamp glass is magnesium glass. It is resistant to attack by major acids and evaporation from acid-base metals.

The glass is used for production of:
- tubes for fluorescent lamps;
- сustom-made tubes.

Physical properties

Mark glass Linear expansion coefficient Softening point Thermo-
stability
Т
any more
Density Border zone annealing
rated extreme deviation. rated extreme deviation °С °С gr/сm 3 upper lower
СЛ 96 96 ± 1,0 565 ± 10 120 156 2,47 550 410
СЛ 40 40 ± 1,5 620 ± 10-15 260 300 2,25 550 430

Chemical composition

Mark glass The chemical composition of the massive interest Contains impurities in excess of 100% of the principal chemical composition ,
any more, mass %
SiO2 Na2O K2O CaO MgO B2O3 Al2O3
rated extr
deviat.
rated extr
deviat.
rated extr
deviat.
rated extr
deviat.
rated extr
deviat.
rated extr
deviat.
rated extr
deviat.
Fe2O3 Other oxides
and components
СЛ 96 72.4 ±1.5 16.2 ±0.6 1.5 ±0.2 5.3 +0.1
-0.7
3.2 ±0.5 - - 1.4 ±0.4 0.08 -
СЛ 40 74.8 ±1.5 4.2 ±0.5 1.6 ±0.3 - - - - 18.0 ±1.0 1.4 ±0.3 0.1 CaOxMgO

 

 
Ltd " Factory GRL "
3 Zavodskaya str, Poltava, Ukraine, 36007
tel./fax: +38 (0532) 518-315, 518-350
e-mail: marketing@grl.com.ua
Ltd. "Trade house PZ GRL-Ukraine"
3 Zavodskaya str, Poltava, Ukraine, 36007
tel./fax: +38 (0532) 519-122, 518-308
e-mail: marketing@grl.com.ua