Square Graphite Crucibles

The use of square graphite crucibles is to balance the refined needs of industrial application scenarios with the optimization of material performance.

Spatial adaptability and thermal field control of square graphite crucibles. This performance is mostly reflected in precision manufacturing fields such as semiconductors and photovoltaics. As we all know, high-temperature furnace chambers are mostly square or rectangular structures. The square graphite crucible can reduce thermal field distortion through the geometric shape and the furnace chamber, which largely avoids the energy loss caused by the gap between the edge of the round crucible and the furnace wall. Its diamond-shaped structure facilitates directional heat flow control by electromagnetic induction or resistance heating, which is very suitable for single crystal silicon growth.

Mechanical stability and long service life of square graphite crucibles. The square structure of the square graphite crucible can disperse thermal stress through splicing design. Compared with the integrally formed crucible, this design can reduce the risk of cracking caused by sudden temperature changes.

Process compatibility and cost control of square graphite crucibles. Square graphite crucibles are suitable for rectangular loading systems of automated production lines to improve loading efficiency and material utilization. For example, in the carbonization process of lithium battery negative electrode materials, the square design allows the powder to be filled more tightly, and the processing capacity of a single furnace is increased by about 15%. At the same time, the breakthrough in isostatic pressing technology has made the density uniformity of square graphite parts reach more than 98%, extending the service life while reducing the unit energy consumption cost.

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