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Medium Density Vermiculite Brick Aluminium Electrolytic Cells Insulation Brick

V-1100 boards are not attacked by molten aluminium and are highly resistant to cryolite penetration and fluorides. Therefore V-1100 is ideal as back-up insulation in aluminium electrolysis cells, where it can be applied alone or as combi-boards (V-1100 glued on calcium silicate boards) for easy installation. V-1100 can also be used as hot- face insulation for covering electrolysis cells during start-up. Additionally, V-1100 can be applied in the secondary aluminium industry, for example as back-up insulation of the walls in holding furnaces, and in launders as back-up insulation and as top lid.

Product Description

Product Brief Description;

V-1100 boards are not attacked by molten aluminium and are highly resistant to cryolite penetration and fluorides. Therefore V-1100 is ideal as back-up insulation in aluminium electrolysis cells, where it can be applied alone or as combi-boards (V-1100 glued on calcium silicate boards) for easy installation. V-1100 can also be used as hot- face insulation for covering electrolysis cells during start-up. Additionally, V-1100 can be applied in the secondary aluminium industry, for example as back-up insulation of the walls in holding furnaces, and in launders as back-up insulation and as top lid.

Parameter Specification:

Parameter

Specification

Material

Vermiculite

Length × width

1000 x 305 mm

Thickness

25 – 130 mm

Maximum service temperature

1150

Bulk density

750 kg/m³

Compressive strength

5.0 Mpa

Bending Strength

2.5 Mpa

stomatal percentage

72 %

Linear reheat shrinkage

1.0%

Thermal conductivity

Mean temp.@ 200

0.14 W/(m*K)

Mean temp.400

0.16 W/(m*K)

Mean temp.@ 600

0.18 W/(m*K)

Mean temp.@ 800

0.20 W/(m*K)

Chemical Analysis

SiO2

46%

Al2O3

13%

Fe2O3

4-6%

TiO2

1-2%

MgO

20%

CaO

1.9%

K2O

8%

Na2O

1.5%

Key Features:

Energy Saving

High strength with low thermal conductivity

Maximum Service Temperature: 1100

Highly resistant to cryolite penetrations and fluorides

Not wetted by molten aluminium

Applications:

Electrolysis cells

Carbon Baking furnaces

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