High Alumina Chequer Firebrick Introduction
High alumina chequer firebrick is a heat carrying heat storage body with excellent thermal properties, strong heat exchange capacity, large heat storage area, smooth ventilation and low resistance. Refractory high alumina chequer fire brick is a kind of heat transfer medium, firebrick is mainly used in the upper part of the regenerator of hot blast stove to store heat storage. There are a plurality of through holes parallel to the side surfaces, positioning projections and positioning grooves on the two parallel surfaces.
High Alumina Chequer Firebrick Features & Advantages
1.High alumina chequer refractory brick have high refractoriness.
2. High alumina chequer Brick have good spalling resistance and wear resistance.
3. Refractory high alumina chequer brick have good corrosion resistance.
4.High alumina chequer refractory brick have good thermal shock resistance.
5. Checker brick have high mechanical strength.
6. Refractory checker bricks have low high temperature creep rate.
High Alumina Chequer Firebrick Specification
| High Alumina Chequer Firebrick Physical and Chemical Index: |
| Item |
Properties |
| RS-80 |
RS-75 |
RS-65 |
RS-55 |
RS-48 |
| Al2O3 (%) |
80 |
≥75 |
≥65 |
≥55 |
≥48 |
| Refractoriness (°C ) |
≥1790 |
≥1790 |
≥1790 |
≥1770 |
≥1750 |
| Bulk density (g/cm3) |
2.65 |
2.5 |
2.45 |
2.4 |
2.3 |
| Softening temperature under load (°C ) |
1530 |
≥1520 |
≥1500 |
≥1470 |
≥1420 |
| Linear changes on reheating (%) |
1500°CX2H |
0.1 |
0.1 |
0.1 |
0.1 |
0.1 |
| 1450°CX2H |
-0.4 |
-0.4 |
-0.4 |
-0.4 |
-0.4 |
| Apparent porosity (%) |
22 |
≤23 |
≤23 |
≤22 |
≤22 |
| Cold crushing strength (Mpa) |
55 |
≥50 |
≥45 |
≥40 |
≥35 |
| Application |
steel furnace, glass furnace, sodium silicate furnace, ceramic shuttle kiln, cement rotary kiln, blast furnace, electric furnace, blast furnace and reverberatory furnace. |
High Alumina Chequer Firebrick Applications
1. Steel furnaces
2. Iron making furnaces
3. Glass kiln
Refractory Brick Manufacture in Rongsheng Kiln Refractory Factory
Zhengzhou Rongsheng Kiln Refractory Co., Ltd, located in the beautiful Xinmi CIty,Henan Province with rich refractory materials. Established in the early 90s of twenty century, with continuous innovation and development, now we are a comprehensive enterprise producing refractory in metallurgy, electirc power, building materials, chemical industry, glass, non-ferrous metals, ect. There are more than 180 staffs, including 20 professional technicians. We have 3 automatic production lines for shaped, unshaped and insulating refractory materials.
