Melting

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Melt temperature

Refine temperature

Surface tension 900

Surface tension 1200

Surface tension 1300

Surface tension 1400

Surface tension 1400 oC (Kucuk)

Liquidus Temperature

Water solubility silicate glass melts 1200oC, 1 atm H2O pressure

Density of silicate glass melts 1000

Density of silicate glass melts 1200

Density of silicate glass melts 1400

(method A)

Working Range Index (WRI in oC)

Relative Machine Speed (RMS)

Devitrification Index (DI in oC)

Gob Temperature (G in oC)

VFT constants(method A):

A

B

T0

(method B)

(F)Working Range Index (WRI in oC)

(F)Relative Machine Speed (RMS)

(F)Devitrification Index (DI in oC)

(F)Gob Temperature (G in oC)

A(F)

B(F)

T0(F)

 

Fix Temperature point for viscosity:

Viscosity lg(n)

1

1.5

1.7

2

2.5

3

4

5

6

7

7.477

7.6

8.176

9

10

11

12

12.5

13

13.3

14

14.5

14.6

 

Viscosity for fix temperature point:

Temperature

100

200

300

400

500

600

700

800

900

1000

1100

1150

1200

1250

1300

1350

1400

1450

1500

1550

1600

1650

1700

1750

1800

1900

2000

2200

2500