VAluStar crucibles offer more than a 50% increase in the life span of crucibles used in the aluminum casting process. Highly resistant to oxidation at low temperatures, they are particularly suited to holding aluminum and aluminum alloys in electric resistance furnaces. VAluStar crucibles are high-density, clay-bonded, isostatically pressed crucibles that contain a high graphite and silicon-carbide content. VAluStar was tested in a 24-hour aluminum melting and holding application against a conventional isostatically pressed crucible. The latter needed to be replaced after eight months due to a reduction in thermal conductivity and when top brim cracks occurred due to oxidation. Meanwhile, VAluStar’s lifetime was 14 months.
Thermal Processing Products
Crucibles Used in Aluminum Casting
Morgan Advanced Materials
September 16, 2019