The efficient operation of an aluminum smelter requires the use of an inexpensive method of making the refractories for the cathode of the aluminum reduction cell. In contrast to methods based on uniaxial hydraulic pressing, dynamic impact pressing does not require the use of a high-strength mold or a powerful press, i.e. it is significantly less expensive to make the refractories employed in this method. Careful selection of the granulometric composition of the SiC grit and the silicon powder and maintenance of the necessary moisture content in the granular mix increase particle packing density and green density. Dynamic impact pressing makes it possible to produce high-performance sidewall bricks that will have excellent service properties and a long service life.
Refractories and Industrial Ceramics – Springer Journals
Published: Jun 5, 2014
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