What is the difference between phosphorus impregnated clay bricks and low porosity clay bricks?
1. Overview of cutting-edge
Phosphorus impregnated clay bricks and low porosity clay bricks are different, the raw materials and impregnation are different.
2. Description of low porosity clay fire bricks
The pores of low porosity refractory clay fire bricks are between 10-22%. The low porosity of low porosity clay bricks is mainly to add a certain proportion of coke gemstones to the raw materials to adjust the pores. After adding coke gemstones, the density, strength, and The corrosion resistance is enhanced by the adjustment of coke stones, and the sintering temperature of low-pore clay fire bricks is high, and the raw material matrix changes greatly. The corrosion resistance, thermal shock resistance, and strength are better than those of ordinary clay fire bricks and phosphorus-impregnated bricks. The price is also very different from other fireclay bricks.
3. Description of phosphorus impregnated clay bricks
Phosphorus-impregnated clay bricks are based on ordinary clay fire bricks. The bricks are soaked with phosphoric acid in a specific container for a period of time, and then fired for the second time at a fire temperature above 200°C, allowing the phosphoric acid to penetrate the clay firebricks through the open pores. It penetrates into the inner part of the brick and allows the iron and aluminum to react, thereby reducing the pores of the clay brick and increasing the corrosion resistance of the clay brick. However, the phosphorus-impregnated clay bricks are troublesome due to the phosphorus-impregnated process, and the kiln car is easily damaged during the second temperature sintering process. Therefore, manufacturers of phosphorus-impregnated clay refractory bricks must have specific phosphorus-impregnated facilities to produce phosphorus-impregnated clay firebricks. Otherwise, the phosphorus leaching process cannot be completed.
04.The difference between the two lies in the pores
The difference between phosphorus impregnated clay bricks and low porosity clay bricks is the pores. Low-porosity clay fire bricks can adjust the pores according to the height of the pores by adding the amount of coke stone particles, which can be different pores. After phosphorus-impregnated clay fire bricks are impregnated with phosphorus, they can only reduce the pores by 5% based on the pores of ordinary claybricks, while the strength is increased by 20%.
