Performance characteristics: wear resistance, corrosion resistance, peeling resistance, low creep, good thermal shock stability, service life is 1.5 times that of ordinary products;
Main uses: Mainly used in blast furnaces, hot blast furnaces, carbon roasting furnaces, carbon calciners, coke ovens, steel barrels, casting systems, boilers, cement kilns, glass kilns and various kiln lining and thermal equipment, etc., suitable for metallurgy, machinery, building materials, casting, ceramics, electric power, petroleum, chemical and other industries.
Standard size:230*115*65mm
First-class high-alumina bricks Al2O3 75%
second-class high-alumina bricks Al2O3 60%~75%
third-class high-alumina bricks Al2O3 48%~60%
Aluminum content: 25-42%
Compressive strength at room temperature: 30-45MPa
Standard brick size: 230*115*65mm
Cost-effective: The phosphoric acid impregnated products of blast furnace clay bricks with good thermal stability and qualified quality after drying treatment and secondary low temperature firing can be used for masonry of the upper part of the blast furnace furnace lining.
Mullite bricks refer to high-alumina refractories with mullite as the main crystalline phase, and the general alumina content is between 65% ~ 75%. It is mainly used for hot blast furnace top, blast furnace body and bottom, glass melting furnace regenerator, ceramic sintering kiln, petroleum cracking system dead angle furnace lining, etc.
Mullite bricks have high refractoriness, up to more than 1790 C, and have good thermal shock resistance. There are two types: sintered mullite bricks and fused mullite bricks. The crystallization of fused mullite is larger than that of sintered mullite, and the thermal shock resistance is better than that of sintered products.
Aluminum content: 65-90%
Standard brick size: 230*115*65mm
Compressive strength at room temperature: 100-120MPa
Good thermal shock resistance:
1. High temperature strength;
2. Resistant to corrosion in various atmospheres;
3. Excellent thermal shock stability;
4. Good thermal insulation;
5. The energy-saving effect is remarkable
The operating temperature is below 1350C. Thermal insulation refractories are characterized by high porosity, generally 40%-85%; Low bulk density and low dry 1.5g/cm3: low thermal conductivity, generally less than 1.0W (m.K), it acts as the thermal insulation material of industrial kiln, can reduce the heat dissipation loss of the furnace, save energy, and can reduce the quality of the equipment under heat, the mechanical strength, wear resistance and slag erosion resistance of the thermal insulation refractory material is poor, and it is not suitable for the load-bearing structure of the kiln and direct contact with slag, charge, molten metal and other parts
