Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Alumina-based castable and application thereof
The invention discloses an alumina-based castable and application thereof. The high-strength alumina-based castable takes bauxite as a main raw material, aggregate adopts four-stage particle size matching of 8-5mm, 5-3mm, 3-1mm and 1-0mm, fine powder adopts 0.075 mm alumina powder and silicon carbide fine powder, a binding agent adopts high-alumina cement and silica powder, auxiliaries adopt sodium tripolyphosphate and sodium hexametaphosphate, and a proper amount of steel fibers and explosion-proof fibers are added. According to the alumina-based castable, by adjusting the proportion of the composite micro powder, the contradiction between normal-temperature strength and high-temperature strength of a common castable is solved, and the alumina-based castable with high normal-temperature strength and high-temperature strength is prepared. The highest normal-temperature compressive strength of the castable can reach 193 MPa, the highest normal-temperature breaking strength of the castable can reach 24 MPa, the highest high-temperature compressive strength of the castable can reach 120.6 MPa (1300 DEG C, 3 h), and the highest high-temperature breaking strength of the castable can reach 22.5 MPa.
本发明公开一种矾土基浇注料及其应用。本发明所述的高强度矾土基浇注料以铝矾土为主要原料，骨料采用8～5mm，5～3mm，3～1mm，1～0mm四级粒度匹配，细粉采用0.075mm的矾土粉和碳化硅细粉，结合剂采用高铝水泥和硅微粉，助剂采用三聚磷酸钠和六偏磷酸钠，并添加适量钢纤维和防爆纤维。该矾土基浇注料通过调整复合微粉的比例，解决了一般浇注料常温强度和高温强度的矛盾，制得了一种常温强度和高温强度都很高的矾土基浇注料。该浇注料常温耐压强度最高可达193MPa，常温抗折强度最高可达24MPa，高温耐压强度最高可达120.6MPa(1300℃，3h)，高温抗折强度最高可达22.5MPa。
Alumina-based castable and application thereof
The invention discloses an alumina-based castable and application thereof. The high-strength alumina-based castable takes bauxite as a main raw material, aggregate adopts four-stage particle size matching of 8-5mm, 5-3mm, 3-1mm and 1-0mm, fine powder adopts 0.075 mm alumina powder and silicon carbide fine powder, a binding agent adopts high-alumina cement and silica powder, auxiliaries adopt sodium tripolyphosphate and sodium hexametaphosphate, and a proper amount of steel fibers and explosion-proof fibers are added. According to the alumina-based castable, by adjusting the proportion of the composite micro powder, the contradiction between normal-temperature strength and high-temperature strength of a common castable is solved, and the alumina-based castable with high normal-temperature strength and high-temperature strength is prepared. The highest normal-temperature compressive strength of the castable can reach 193 MPa, the highest normal-temperature breaking strength of the castable can reach 24 MPa, the highest high-temperature compressive strength of the castable can reach 120.6 MPa (1300 DEG C, 3 h), and the highest high-temperature breaking strength of the castable can reach 22.5 MPa.
本发明公开一种矾土基浇注料及其应用。本发明所述的高强度矾土基浇注料以铝矾土为主要原料，骨料采用8～5mm，5～3mm，3～1mm，1～0mm四级粒度匹配，细粉采用0.075mm的矾土粉和碳化硅细粉，结合剂采用高铝水泥和硅微粉，助剂采用三聚磷酸钠和六偏磷酸钠，并添加适量钢纤维和防爆纤维。该矾土基浇注料通过调整复合微粉的比例，解决了一般浇注料常温强度和高温强度的矛盾，制得了一种常温强度和高温强度都很高的矾土基浇注料。该浇注料常温耐压强度最高可达193MPa，常温抗折强度最高可达24MPa，高温耐压强度最高可达120.6MPa(1300℃，3h)，高温抗折强度最高可达22.5MPa。
Alumina-based castable and application thereof
一种矾土基浇注料及其应用
LU XIAOLIN (Autor:in) / MA LEI (Autor:in) / WANG GUOPENG (Autor:in) / ZHANG WANSHENG (Autor:in) / WANG XIAODONG (Autor:in)
09.06.2023
Patent
Elektronische Ressource
Chinesisch
High-purity alumina castable and preparation method thereof
| Europäisches Patentamt | 2023