Wear-resistant ceramic material

　　1. Physical properties:

　　(1) Maximum operating temperature: 1200 ℃;

　　(2) Specific gravity: 2870Kg / m3;

　　(3) the largest grain: ≤4mm;

　　(4) Shrinkage rate: ≤0.2%.

　　2. thermal characteristics:

　　(1) Endothermic coefficient: 0.8 ～ 0.9KJ / Kg ℃;

　　(2) Thermal conductivity: 1.4 ～ 1.5W / m ℃;

　　(3) Thermal expansion coefficient: within 700 ° C 1.0 × 10-6.

　　3. abrasion resistance:

　　Implement GB / T 18301-2001 standard.

　　4. Water volume:

　　6-7% (water quality requirements: meet drinking water standards).

　　5. stainless steel fiber ratio:

　　3 to 5% by weight.

　　6. Construction thickness:

　　25mm (the actual thickness of the stress erosion surface is slightly larger than the thickness required for construction).

　　7. Use site:

　　The kiln head of the cement kiln preheats the power generation settlement chamber, duct, flue, elbow and other parts.