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Millegap 50MM Expanded Vermiculite Brick Low Density Thermal Insulation Brick for Aluminium Electrolytic Insulation

Millegap 50MM Expanded Vermiculite Brick Low Density Thermal Insulation Brick for Aluminium Electrolytic Insulation

The millegap vermiculite 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.

MOQ: 50 PCS

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Aluminum Electrolytic Applying

Electrolytic Aluminum Melting industry

In electrolytic aluminum melting industry, Bluewind refractory and insulation vermiculite products mainly works in following two parts: anti-leakage bricks and insulation layer vermiculite bricks.

Anti-leakage bricks: It requires to stand the high temperature and prevent the aluminum melting liquid leakage. And it can reduce the heat consumption and energy costs.

Bluewind HD Vermiculite brick, can resist max 1,200°C heat, with stable working and insulation performance, in the layer of anti-leakage, forms a ceramic like layer under continuous high temperature heating, which can prevent the liquid aluminum leakage. While the thermal conductivity is below 0.3 W/m.K, which great lower than most refractory bricks, which helps the energy saving and production improving.

Insulation layer vermiculite bricks: In the insulation layer, vermiculite bricks work like a transition layer which prevent the heat spreading fast outside the melting cells. It can resist the high temperature and has a good insulation performance, can take part roles of the clay brick and Calcium Silicate boards, and works in the middle layer of the clay brick and Calcium Silicate bricks.

millegap 50mm expanded vermiculite brick low density thermal insulation brick for aluminium electrolytic insulation-1

millegap 50mm expanded vermiculite brick low density thermal insulation brick for aluminium electrolytic insulation-2

Density	450 kgs/m³	1200 kgs/m³
Compressing strength	2.0 Mpa	9.0 Mpa
Thermal conductivity	0.1-0.18 W/m.k	0.2-0.3 W/m.k
Linear shrinkage @1000℃	<3%	<0.5%