This product adopts tabular alumina, carbonaceous material and zirconia-containing material as main raw materials, adds in high performance antioxidants, uses phenolic resin as binder, formed under high-pressure and burned under high temperature. The slide plates have the advantages of high strength, good erosion resistance, thermal shock resistance and good stability etc., mainly used in large and medium-sized ladle.
The physical and chemical properties of high temperature burned Al-C and Al-Zr-C slide plate are as follow:

Chemical and Physical Properties Al-C Slide Gate Plate Al-Zr-C Slide Gate Plate
LQSP-70 LQSP -75 LQSP -80 LQSP -85 LQSP -86 LQSP -70 LQHSP-75 LQHSP -77
Al2O3,% 70 75 80 85 86 70 75 77
C,% 7 7 5 5 4 7 7 7
ZrO2,% - - - - - 6 6 2.5
A.P.,% max 10 10 10 10 7 10 10 10
B.D.,g/cm3 2.8 2.9 2.9 3.0 2.95 3.00 3.05 2.90
C.C.S., MPa min 65 70 100 100 100 110 115 100

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