Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Submicron SiO2 micro powder combined iron runner castable and preparation method thereof
The invention discloses a submicron SiO2 micro powder combined iron runner castable and a preparation method thereof. The submicron SiO2 micro powder combined iron runner castable comprises the following components in percentage by mass: 58-62 wt% of compact corundum aggregate, 6-10 wt% of silicon carbide aggregate, 2-3 wt% of ball pitch, 4-10 wt% of alumina micro powder, 4-5 wt% of submicron SiO2 micro powder, 7-10 wt% of silicon carbide powder, 1-1.5 wt% of metal silicon powder, 0.1-0.15 wt% of a dispersant, 6-9 wt% of compact corundum powder, 0.06-0.1 wt% of explosion-proof fiber, and 0-0.2 wt% of caustic calcined magnesia powder. The submicron SiO2 micro powder is innovatively adopted as a binding agent in the iron runner castable to completely replace cement, so that the castable generates enough early strength, and the research bottleneck of the traditional iron runner castable is broken through. The water adding amount of the iron runner castable is reduced, the thermal-state breaking strength of the iron runner castable is improved, and the low melting phase of the castable is reduced. And meanwhile, the coagulation accelerating problem and the anti-explosion problem of the submicron SiO2 micro powder combined iron runner castable are solved.
本发明公开了一种亚微米SiO2微粉结合铁沟浇注料及其制备方法，其组成按质量百分数计如下：致密刚玉骨料58～62wt％；碳化硅骨料6～10wt％；球沥青2～3wt％；氧化铝微粉4～10wt％；亚微米SiO2微粉4～5wt％；碳化硅粉7～10wt％；金属硅粉1～1.5wt％；分散剂0.1～0.15wt％；致密刚玉粉6～9wt％；防爆纤维0.06‑0.1wt％；轻烧镁粉0‑0.2wt％。本发明创新的在铁沟浇注料中采用亚微米SiO2微粉做为结合剂，完全替代水泥使浇注料产生足够的早期强度，突破了传统铁沟浇注料的研究瓶颈。降低了铁沟浇注料的加水量，提高了铁沟浇注料热态抗折强度，减少了浇注料低熔相的产生。同时解决了亚微米SiO2微粉结合铁沟浇注料的促凝问题及抗爆问题。
Submicron SiO2 micro powder combined iron runner castable and preparation method thereof
The invention discloses a submicron SiO2 micro powder combined iron runner castable and a preparation method thereof. The submicron SiO2 micro powder combined iron runner castable comprises the following components in percentage by mass: 58-62 wt% of compact corundum aggregate, 6-10 wt% of silicon carbide aggregate, 2-3 wt% of ball pitch, 4-10 wt% of alumina micro powder, 4-5 wt% of submicron SiO2 micro powder, 7-10 wt% of silicon carbide powder, 1-1.5 wt% of metal silicon powder, 0.1-0.15 wt% of a dispersant, 6-9 wt% of compact corundum powder, 0.06-0.1 wt% of explosion-proof fiber, and 0-0.2 wt% of caustic calcined magnesia powder. The submicron SiO2 micro powder is innovatively adopted as a binding agent in the iron runner castable to completely replace cement, so that the castable generates enough early strength, and the research bottleneck of the traditional iron runner castable is broken through. The water adding amount of the iron runner castable is reduced, the thermal-state breaking strength of the iron runner castable is improved, and the low melting phase of the castable is reduced. And meanwhile, the coagulation accelerating problem and the anti-explosion problem of the submicron SiO2 micro powder combined iron runner castable are solved.
本发明公开了一种亚微米SiO2微粉结合铁沟浇注料及其制备方法，其组成按质量百分数计如下：致密刚玉骨料58～62wt％；碳化硅骨料6～10wt％；球沥青2～3wt％；氧化铝微粉4～10wt％；亚微米SiO2微粉4～5wt％；碳化硅粉7～10wt％；金属硅粉1～1.5wt％；分散剂0.1～0.15wt％；致密刚玉粉6～9wt％；防爆纤维0.06‑0.1wt％；轻烧镁粉0‑0.2wt％。本发明创新的在铁沟浇注料中采用亚微米SiO2微粉做为结合剂，完全替代水泥使浇注料产生足够的早期强度，突破了传统铁沟浇注料的研究瓶颈。降低了铁沟浇注料的加水量，提高了铁沟浇注料热态抗折强度，减少了浇注料低熔相的产生。同时解决了亚微米SiO2微粉结合铁沟浇注料的促凝问题及抗爆问题。
Submicron SiO2 micro powder combined iron runner castable and preparation method thereof
一种亚微米二氧化硅微粉结合铁沟浇注料及其制备方法
WEI JIANXIU (Autor:in) / CHENG SHUIMING (Autor:in) / CONG PEIYUAN (Autor:in) / ZHOU ZICHEN (Autor:in)
25.05.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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