Welcome to Henan Farui Refractory Material Co., Ltd. website!
中文 | CONTACT | MAP | ONLINE MESSAGE
Tel:+86-13183003859 / +86-13903828086 Sales：+86-371-86127177 / +86-371-86127178 Service Department：+86-371-69239469
Address: Dongdian Village, Chaohua Town, Xinmi City, Zhengzhou City, Henan Province
Copyright ©2018 hnfarui.cn All Rights Reserved 豫ICP备11005185号 Powered by www.300.cn
Blast furnace tap hole combination brick
High-alumina brick for blast furnace is a refractory product which is calcined high-quality high-alumina bauxite clinker and binder first through granulation and pulverization processes, mixed at a certain ratio, and then press-molded and fired at high temperature. According to the physical and chemical indicators, it is divided into three grades: GL-65, GL-55, and GL-48. Mainly used for masonry blast furnace below the belly.
Physical and chemical indicators:
|Al2O3 % ≥||65||55||48|
|Fe2O3 % ≤||2.0|
|Apparent porosity % ≤||19||19||18|
|Compressive strength at room temperature Mpa ≥||58.8||49||49|
|0.2MPaLoad softening start temperature ℃ ≥||1500||1480||1450|
|Reburning line change %||