75 High Alumina Bricks Meaning
75 high alumina bricks use temperature of 1500 ° C. 75 high alumina brick refers to the secondary high alumina brick with 75% alumina content. The use temperature refers to the load softening start temperature at 0.2mpa, and the refractoriness cannot represent its use temperature.
75 High Alumina Refractory Brick Specification
High alumina fire brick grade RSGZ-75 AL2O3 ≥ 75 % Fe203 <2.0% bulk density g / cm 2.5, normal temperature compressive strength MPa > 60 load softening temperature 1500 ° C refractoriness > 1790 °C apparent porosity < 20%, line Rate of change +-0.3%
The high alumina brick load softening temperature refers to the temperature at which a high alumina brick undergoes a constant load under constant temperature rise. Which shows the ability of high alumina bricks to resist both high temperature and load, and to some extent indicates the structural strength of the article in the case of its similar use conditions.
75 high alumina bricks use a temperature (temperature) of 1500 ℃. 75 high alumina brick refers to the secondary high alumina brick with 75% alumina content. The use temperature refers to the load softening start temperature at 0.2mpa, and the refractoriness cannot represent its use temperature.
The factors affecting the load softening temperature of high alumina bricks are mainly the chemical composition and microstructure. Increasing the purity of raw material, reducing the specific gravity of the low melt or flux, increasing the molding pressure, and making the fire brick of good density (unit: g/cm3 or kg/m3) can significantly increase the load softening temperature of the product.
75 high alumina brick belongs to Acerbity aluminum fireproof material. It is formed by calcining or calcining a raw refractory material with high alumina content of alumina or other oxygen (Oxygen) oxidation. The stability of the system is high and the refractoriness is above 1770℃. Good slag resistance, used in building steel electric furnaces, power plant boilers, glass furnaces, cement rotary furnaces.
Where Can I Buy Fire Bricks - RS Refractory Factory
Rongsheng Refractory Material Factory specializes in producing refractory bricks for 20 years, producing 65 alumina content and 75 alumina content and 55 alumina content high alumina brick, 75 alumina content micro-expansion high aluminum brick. But winter is coming, due to environmental protection and natural gas rising, etc. The existence of objective reasons, the supply of firebricks is tight, but the supply of Rongsheng refractory materials factory is temporarily sufficient, welcome to peers to adjust the goods. Certain discount is given on large QTY order.
