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High-performance corundum dry ramming material for medium-frequency induction furnace and preparation method of high-performance corundum dry ramming material
The invention discloses a high-performance corundum dry ramming material for a medium-frequency induction furnace and a preparation method of the high-performance corundum dry ramming material, and belongs to the technical field of refractory material preparation. A base material of the dry ramming material comprises the following components: white corundum aggregate, white corundum micro powder, magnesia aggregate, magnesia micro powder, alpha-alumina micro powder and magnesium aluminate spinel, the additive accounts for 0-5wt% of the total weight of the base material by taking the total weight of the base material as a metering reference, and the additive is a compound composite material of silicon nitride/metal silicon/ferrosilicon alloy. The added compound composite material can promote in-situ generation of the magnesium aluminate spinel, and meanwhile, the in-situ magnesium aluminate spinel is converted into aluminum-rich magnesium aluminate spinel; the contained high-activity silicon ions form a liquid phase and generate three-dimensional network-shaped mullite crystal whiskers with high-energy-state aluminum oxide at the same time, and a reinforcing effect is achieved by combining the network-shaped structure of the composite material. Therefore, the ramming material prepared by the invention has the characteristics of high mechanical strength, good thermal shock resistance, excellent erosion resistance and the like.
本发明公开了一种中频感应炉用高性能刚玉质干式捣打料及其制备方法，属于耐火材料制备技术领域。本发明的干式捣打料基料包含的组分为：白刚玉骨料，白刚玉微粉，镁砂骨料，镁砂微粉，α‑氧化铝微粉，镁铝尖晶石；添加剂以基料的总重量为计量基准，占基料总重量的0～5wt.％，所述添加剂为氮化硅/金属硅/硅铁合金的复配复合材料。本发明添加的复配复合材料可以促进镁铝尖晶石的原位生成，同时使得原位镁铝尖晶石向富铝镁铝尖晶石转变；所含高活性硅离子形成液相的同时，与高能状态氧化铝生成三维网络状莫来石晶须，结合复合材料自身网络状结构起到增强效果。因此，本发明制备的捣打料具有机械强度高、热震稳定性好、抗侵蚀能力优良等特点。
High-performance corundum dry ramming material for medium-frequency induction furnace and preparation method of high-performance corundum dry ramming material
The invention discloses a high-performance corundum dry ramming material for a medium-frequency induction furnace and a preparation method of the high-performance corundum dry ramming material, and belongs to the technical field of refractory material preparation. A base material of the dry ramming material comprises the following components: white corundum aggregate, white corundum micro powder, magnesia aggregate, magnesia micro powder, alpha-alumina micro powder and magnesium aluminate spinel, the additive accounts for 0-5wt% of the total weight of the base material by taking the total weight of the base material as a metering reference, and the additive is a compound composite material of silicon nitride/metal silicon/ferrosilicon alloy. The added compound composite material can promote in-situ generation of the magnesium aluminate spinel, and meanwhile, the in-situ magnesium aluminate spinel is converted into aluminum-rich magnesium aluminate spinel; the contained high-activity silicon ions form a liquid phase and generate three-dimensional network-shaped mullite crystal whiskers with high-energy-state aluminum oxide at the same time, and a reinforcing effect is achieved by combining the network-shaped structure of the composite material. Therefore, the ramming material prepared by the invention has the characteristics of high mechanical strength, good thermal shock resistance, excellent erosion resistance and the like.
本发明公开了一种中频感应炉用高性能刚玉质干式捣打料及其制备方法，属于耐火材料制备技术领域。本发明的干式捣打料基料包含的组分为：白刚玉骨料，白刚玉微粉，镁砂骨料，镁砂微粉，α‑氧化铝微粉，镁铝尖晶石；添加剂以基料的总重量为计量基准，占基料总重量的0～5wt.％，所述添加剂为氮化硅/金属硅/硅铁合金的复配复合材料。本发明添加的复配复合材料可以促进镁铝尖晶石的原位生成，同时使得原位镁铝尖晶石向富铝镁铝尖晶石转变；所含高活性硅离子形成液相的同时，与高能状态氧化铝生成三维网络状莫来石晶须，结合复合材料自身网络状结构起到增强效果。因此，本发明制备的捣打料具有机械强度高、热震稳定性好、抗侵蚀能力优良等特点。
High-performance corundum dry ramming material for medium-frequency induction furnace and preparation method of high-performance corundum dry ramming material
一种中频感应炉用高性能刚玉质干式捣打料及其制备方法
LI MINGHUI (author) / QI GANG (author) / CHEN RUOYU (author) / LI PEILIN (author) / LYU SIWEI (author) / LI SAISAI (author) / DING YI (author) / LI CANHUA (author)
2024-02-09
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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