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Classification and Introduction of Graphite Crucible
2024.05.27
1. Pure graphite crucible is cheap, widely applicable, high carbon content, high melting point, can withstand high temperature corrosion, so it is widely used in laboratory and industrial production. However, the mechanical properties of pure graphite crucible are relatively poor, and it is easy to crack due to large temperature difference, so it is necessary to pay attention to temperature control in the application process to avoid too fast rising and cooling.
2. Silicon carbide graphite crucible is a kind of high-performance ceramic graphite material, low thermal expansion coefficient, high strength, high temperature, oxidation resistance and good chemical stability. Silicon carbide graphite crucible will not expand at high temperature, is not easy to deformation, cracking, has a good corrosion resistance, so it has been widely used in special thermal analysis and molten material testing.
3. Silica carbide crucible is a new kind of material, its physical properties and chemical stability are much better than silicon carbide graphite crucible. Silica nitride graphite crucible has the advantages of high temperature strength, high oxidation resistance, corrosion resistance, etc., can be used at higher temperatures, but also suitable for more acidic and alkaline environments. Therefore, the silica nitride graphite crucible has been widely used in steel, aluminum alloy and other high-temperature industrial fields.
4. The molded graphite crucible is made of high purity natural graphite and other additives, has extremely high fire resistance and low coefficient of thermal expansion, and can withstand corrosion under high temperature and pressure. Molded graphite crucible has been widely used in the electronics industry, solar cell industry, rail transit industry and other fields, but also suitable for a variety of high temperature test and production applications.
In general,different types of graphite crucible have their own characteristics andapplication advantages in different application fields. When using graphite crucible, it is necessary to select the appropriate material and type of graphite crucible according to the actual needs and specific application scenarios.
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