Graphite rods are commonly used as electric heaters in high temperature vacuum furnaces. The maximum operating temperature can reach 3000 ℃. They are easy to be oxidized at high temperatures. Except for vacuum, they can only be used in neutral atmosphere or reducing atmosphere. Its thermal expansion coefficient is small, its thermal conductivity is large, and its resistance coefficient is (8~13) × 10-6 Ω· m, better processability than SiC and MoSi2 rods, high temperature resistance, good resistance to extreme cold and heat, and lower price.
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Ceramic tube Thermocouple protection tube superalloy smelting tube		Ceramic rod Ceramic shaft sleeve insulated refractory rod ceramic shaft.
Ceramic crucible High quality and high temperature resistant crucible for metal smelting.		T-shaped concave convex tube High temperature insulator porcelain mouth porcelain sleeve porcelain eye porcelain bead
Ceramic plate Alumina plate, ceramic plate, bearing plate, insulating plate.		Ceramic gasket High temperature resistant ceramic ring, insulating washer.
Screw nut Insulating screws, corrosion-resistant bolts, heat-resistant screws.		Ceramic ball Alumina and zirconia ultrafine grinding media.