What are the characteristics of silicon carbide crucibles

What are the characteristics of silicon carbide crucibles

Thermal conductivity: using thermal conductive materials, compact structure, low apparent porosity, and fast thermal conductivity.

Long service life: Compared with ordinary clay graphite crucibles, the same material can extend the service life by 2-5 times.

Density: Adopting advanced isostatic pressing technology, the material is dense, uniform, and defect free.

High strength: material selection, compression, good temperature strength, scientific product design, and load-bearing capacity.

Anti corrosion: Advanced material formula that can effectively resist the physical and chemical reactions of the melt.

Less slag sticking: The amount of slag hanging on the inner wall is reduced, greatly reducing the possibility of thermal resistance and crucible cracking.

Resistance to temperature: You can choose to use temperatures in different ranges from 400 to 1700.

Low pollution: When designing materials, fully consider the relationship between molten metal and process characteristics, and almost or completely eliminate harmful impurities.

Metal saving: Due to the presence of special elements in the material, it can effectively inhibit the oxidation of metals.

Energy saving and environmental protection: Rapid heat conduction can save a lot of fuel and reduce waste pollution. Appropriate electrical resistivity and induction heating can significantly reduce reactive power loss.

Antioxidation: Advanced antioxidant mechanisms provide excellent protection for the graphite inside the crucible.

Operation method of silicon carbide crucible

As one of the essential tools for melting and casting metals, silicon carbide crucibles have a good reputation and are recognized and welcomed by people for their corrosion resistance, high temperature resistance, friction resistance, and other characteristics. However, this does not mean that the silicon carbide crucible is invincible. Improper use can shorten its service life. The following are precautions:

Before melting and casting metal, the crucible needs to be preheated in advance to avoid pouring objects simultaneously. When heating, a mud tripod at the bottom of the pot is needed to support the heating. After completion, the crucible cannot be cooled together because it has poor strain resistance. If the temperature is too high during the heating process, a sudden drop in temperature can pose potential hazards to the crucible.

When adding heating objects to the silicon carbide crucible, it should be poured slowly to avoid overfilling. Only by leaving appropriate space and promoting air circulation can smelting be better accelerated. If too much pouring is done, the metal may overflow and burst during the melting process, and the splashing of heated objects may harm workers.

The silicon carbide crucible has high working efficiency. When it is about to steam dry, it is important to increase attention and use excess heat to steam dry. Do not burn it dry until the crucible is completely steamed dry. The steam drying process slowly cools down and then undergoes appropriate treatment. More importantly, you should carefully read the relevant operating instructions to avoid improper operation.

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