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high-borosilicate glass processing
high-borosilicate glass processing

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high-borosilicate glass processing ( incision,polishing,drill hole)

 

 

 

Borosilicate Float Glass 3.3

Product characteristic:

General:

Glass type

Borosilicate Glass 3.3

Manufacturing

Float process

Color

Clear

 

Sizes:

Thickness (mm)

1.50

2.25

3.00

3.80

5.00

6.00

7.50

2.00

2.75

3.30

4.00

5.50

6.50

8.00

Thickness tolerance

±0.2

±0.3

Dimension

600mmx1200mm(max.800mm x2000mm)

Net sized glass of strengthening can be supplied
Glass of cut size is available

Size tolerance

L≤1m

1m<L≤2m

±1mm

±2mm

 

Physical Properties:

Density (at 25°C)

2.23±0.02g/cm 3

Modulus of elasticity

68kN/mm 2

 

Thermal Date:

Coefficient of expansion (20-300°C)

3.3±0.1 x10 -6

Softening point

820±10°C

Strain point

516±10°C

Thermal conductivity at 90°C

1.2W/mk

Caloricity

(20-100°C) 0.82KJ x(kg xK) -1

Thermal shock resistance
Strengthening type

180K
>300K

Identical temperature difference
Strengthening type

100K
>300K

Maximum working temperature
Short time (<10h)
Long time (>10h)

 
500°C
450°C

 

Optical Property:

Refractive index

nd: 1.47384

Light transmission

Thickness (mm)

2

3

4

5

6

7

8

Numerical value

92%

91%

 

Chemical Performance:

Water resistance

ISO719/DIN12111      HGB1
         ISO720      HGA1

Acid resistance

ISO1776/DIN12116        1

Alkali resistance

ISO695/DIN52322       A2

 

Electrical Property:

Specific resistance  lg ρ

8.0Ωxcm at  250°C

Dielectric dissipation fraction   tan σ(1MHz   20°C)

38x10 -4

Dielectric constant

ε=4.7

                   

 

Application:
(Borosilicate 3.3 serves as a material of truly functional and wide applications: )
Household electrical appliance (Panel for oven and fireplace, microwave tray etc. );
Environmental engineering and chemical engineering (Lining layer of repellence, autoclave of chemical reaction and safety spectacles);
Lighting (Spotlight and protective glass for jumbo power of floodlight);
Power regeneration by solar energy (solar cell base plate);
Fine instruments (optical filter);
Semi-conductor technology (LCD disc, display glass);
Iatrology and bio-engineering;
Safety protection (bullet proof glass).

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