Problems with the graphite base in the reduction furnace
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As the title indicates, if chloride ions are present in the graphite base, what impact do they have on the silicon core during the initial growth stage of the silicon rod, and how do they affect the growth of the silicon core?
I believe that the graphite base has no impact on the growth of silicon rods; its role is merely to conduct electricity and support the silicon rods
This post was last edited by whbm on 2011-9-28 at 19:20. The chloride ions in the graphite base should essentially evaporate during the calcination process, so they should not affect the silicon core. However, certain metal ash components that do not evaporate may affect the purity of the final product; therefore, it is generally required to use highly pure graphite that has been purified as the material for the base.
The graphite products used for the bases of graphite electrodes have undergone graphitization at high temperatures of over 2500°C, with only a small amount of ash remaining.