Melting crucibles for non-ferrous metallurgy, precious metals and special alloys
Ceramic crucibles are used in non-ferrous and precious metallurgy as a container for direct melting of metal.
Melting crucibles are used in induction melting furnaces, as well as in installations for producing powders for additive technologies (melting sets).
The crucible material has the following requirements:
- corrosion resistance, resistance to melts and slags;
- mechanical strength;
- high purity material;
- resistance to thermal shock (heat resistance);
- shape stability and preservation of strength up to the maximum working temperature.
The choice of crucible material usually depends on the composition of the material to be melted, as well as the specific operating conditions.
HTTC Co. offers crucibles from the following materials:
- corundum (Al2O3 content not less than 98%);
- zirconium dioxide with various stabilizers (ZrO2);
- corundum-zirconium composite (Al2O3 + ZrO2);
- corundum-periclase composite (Al2O3 + MgO);
- corundum-carbide-silicon composites (Al2O3 + SiC);
- aluminosilicate compositions (Al2O3 + SiO2);
- ceramics based on amorphous silica (brand AMK-00, 01, 02, SiO2 content not less than 99.98%);
- graphite and graphite-containing materials.
Crucibles are made according to the standard nomenclature, and according to customer’s drawings.