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Mullite fiber toughened Al2O3-SiC-C refractory castable for blast furnace tapping channel and preparation method of mullite fiber toughened Al2O3-SiC-C refractory castable
The invention discloses a mullite fiber toughened Al2O3-SiC-C refractory castable for a blast furnace tapping channel and a preparation method of the mullite fiber toughened Al2O3-SiC-C refractory castable, which relate to the technical field of refractory castables. The method comprises the following steps: pouring 55-65 parts by mass of brown fused alumina, 20-30 parts by mass of silicon carbide, 0.3-0.9 part by mass of mullite fiber and 1-3 parts by mass of spherical asphalt into a stirrer, and stirring for 10-20 minutes; and then pouring 6-10 parts by mass of alpha-aluminum oxide micro powder, 2-4 parts by mass of pure calcium aluminate cement, 0.5-1.5 parts by mass of silicon micro powder and 0.05-0.15 part by mass of a water reducing agent, and performing uniform stirring so as to obtain the mullite fiber toughened Al2O3-SiC-C refractory castable for the blast furnace tapping channel. The preparation method is simple in process and wide in raw material source, and the prepared mullite fiber toughened Al2O3-SiC-C refractory castable for the blast furnace tapping channel is high in strength and good in thermal shock stability.
本发明公开了一种高炉出铁沟用莫来石纤维增韧AlO‑SiC‑C耐火浇注料及其制备方法，涉及耐火浇注料技术领域。该方法先将55～65份质量的棕刚玉、20～30份质量的碳化硅、0.3～0.9份质量的莫来石纤维和1～3份质量的球状沥青倒入搅拌机中，搅拌10～20分钟；然后将6～10份质量的α‑氧化铝微粉、2～4份质量的纯铝酸钙水泥、0.5～1.5份质量的硅微粉和0.05～0.15份质量的减水剂，倒入搅拌，搅拌均匀即得到高炉出铁沟用莫来石纤维增韧AlO‑SiC‑C耐火浇注料。本发明工艺简单、原材料来源广，所制备的高炉出铁沟用莫来石纤维增韧AlO‑SiC‑C耐火浇注料强度高、热震稳定性好。
Mullite fiber toughened Al2O3-SiC-C refractory castable for blast furnace tapping channel and preparation method of mullite fiber toughened Al2O3-SiC-C refractory castable
The invention discloses a mullite fiber toughened Al2O3-SiC-C refractory castable for a blast furnace tapping channel and a preparation method of the mullite fiber toughened Al2O3-SiC-C refractory castable, which relate to the technical field of refractory castables. The method comprises the following steps: pouring 55-65 parts by mass of brown fused alumina, 20-30 parts by mass of silicon carbide, 0.3-0.9 part by mass of mullite fiber and 1-3 parts by mass of spherical asphalt into a stirrer, and stirring for 10-20 minutes; and then pouring 6-10 parts by mass of alpha-aluminum oxide micro powder, 2-4 parts by mass of pure calcium aluminate cement, 0.5-1.5 parts by mass of silicon micro powder and 0.05-0.15 part by mass of a water reducing agent, and performing uniform stirring so as to obtain the mullite fiber toughened Al2O3-SiC-C refractory castable for the blast furnace tapping channel. The preparation method is simple in process and wide in raw material source, and the prepared mullite fiber toughened Al2O3-SiC-C refractory castable for the blast furnace tapping channel is high in strength and good in thermal shock stability.
本发明公开了一种高炉出铁沟用莫来石纤维增韧AlO‑SiC‑C耐火浇注料及其制备方法，涉及耐火浇注料技术领域。该方法先将55～65份质量的棕刚玉、20～30份质量的碳化硅、0.3～0.9份质量的莫来石纤维和1～3份质量的球状沥青倒入搅拌机中，搅拌10～20分钟；然后将6～10份质量的α‑氧化铝微粉、2～4份质量的纯铝酸钙水泥、0.5～1.5份质量的硅微粉和0.05～0.15份质量的减水剂，倒入搅拌，搅拌均匀即得到高炉出铁沟用莫来石纤维增韧AlO‑SiC‑C耐火浇注料。本发明工艺简单、原材料来源广，所制备的高炉出铁沟用莫来石纤维增韧AlO‑SiC‑C耐火浇注料强度高、热震稳定性好。
Mullite fiber toughened Al2O3-SiC-C refractory castable for blast furnace tapping channel and preparation method of mullite fiber toughened Al2O3-SiC-C refractory castable
一种高炉出铁沟用莫来石纤维增韧AlO-SiC-C耐火浇注料及其制备方法
LI MINGHUI (Autor:in) / TONG SHENGLI (Autor:in) / SHEN WANGHUA (Autor:in) / SHI YU (Autor:in) / ZHOU YALI (Autor:in) / YUAN GUOZHONG (Autor:in)
04.08.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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