Features: Phosphate bonded refractory bricks have high compressive strength and good wear resistance. The load softening temperature is basically equivalent to that of semi direct bonded magnesium chromium bricks,which is superior to anti peeling high aluminum bricks. They also have good thermal shock stability. For transition zones with significant temperature changes, their performance advantages should be clearly reflected. Suitable for the transition zone of rotary kilns, firing zone,cooling zone,cooling machine, and other parts where bricks are prone to falloff as well as the working layer of cement vertical kilns.
项 目 ltems | 高荷软磷酸盐砖High RUL phosphate brick | 磷酸盐结合耐磨砖Phosphate bonded wear-resistant bricks | |
TP-1 | PA-75 | PA-80 | |
Al,O₃%≥ | 75 | 75 | 80 |
Fe,0,%≤ | 2 | 2.1 | 2.0 |
Ca0 %≤ | 一 | 0.6 | 0.6 |
耐火度℃≥Hefractoriness | 1790 | 1770 | 1790 |
显气孔率%≤Apparent porosity | 18 | 一 | |
体积密度g/cm³≥ Bulk density | 2.90 | 2.70 | 2.80 |
常温耐压强度MPa ≥ Cold crushing strength | 80 | 64 | 80 |
0.2MPa荷重软化开始温度℃≥ Refractoriness Under Load | 1520 | 1300 | 1350 |