Mullite ceramic is also used for shelves, saggers and props in the ceramic industry together with cordierite.Because mullite has low creep deformation,good thermal shock resistance and good corrosion resistance during firing.
Refractory fire clay for sagger
Mullite ceamic display excellent chemical corrosion resistance and very low gas permeability together with favourite refractoriness ,Mullite ceramic ,therefore, has been widely used for saggers and crucibles,thermal protection systems and for thermocoule tubes and so on.
The kiln furniture products are formed through mould pressing, which features low level of heat storage, good thermal shock resistance and excellent quality. They are widely used in firing kilns in the production of mosaic, square bricks, tableware ceramics, sanitary ware ceramics, roofing tiles, magnetic materials and advanced ceramics.
The product received universal acclaim from customers. The main specifications are: Pad plate, shed plate, push plate, sagger, ceiling panel, pillars and burner brick.
Due to the material heat capacity and thermal expansion are small, the product‘s cycle using frequency is high. It is suit for below 1300 ℃ powder forging burn. It is formed by slip casting. Can be customized in a variety of shapes,
The quality of saggers will influence on the product quality and cost. Saggers with good quality shall meet the following conditions:
1) Greater mechanical strength;
2) Good thermal stability;
3) No deformation under a certain high temperature load;
4) Higher refractoriness;
5) Good thermal conductivity;
6) Small residual shrinkage.
High alumina saggar, corundum saggar, cordierite mullite saggar are widely used in various ceramic, glass, electronic, chemical,ferrite industry roller kiln, tunnel kiln, shuttle kiln, push plate kiln and other industrial kiln. Mainly used for sintering magnesium oxide, zirconia, rare earth and various powders.
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