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Magnesium dry material for tundish and preparation method of magnesium dry material
The invention relates to a magnesian dry material for a tundish and a preparation method thereof. The magnesian dry material comprises the following raw materials: 5-10 parts of 0-1mm fused magnesite; 5-10 parts of fused magnesite of 1-3 mm; 6 to 15 parts of 200-mesh fused magnesite; 10 to 20 parts of 1 to 3 mm sintered magnesia; 15 to 30 parts of 3 to 5 mm sintered magnesia; 2 to 20 parts of 0 to 1mm quartz sand; 3-20 parts of 1-3mm quartz sand; 2-15 parts of a binding agent; and 1 to 15 parts of Al2O3 powder. The method has the advantages that the fused magnesite and the sintered magnesite are selected to be mixed to facilitate gap filling between the magnesite, the quartz sand reacts with MgO at a high temperature to generate expansion, permeation of the steel slag to the refractory material can be resisted, meanwhile, few low-melting-point phases are generated in the reaction process, and the steel slag corrosion resistance of the refractory material is improved.
本发明涉及一种中间包的镁质干式料及制备方法，其原料包括：0～1mm电熔镁砂5～10份；1～3mm电熔镁砂5～10份；200目电熔镁砂6～15份；1～3mm烧结镁砂10～20份；3～5mm烧结镁砂15～30份；0～1mm石英砂2～20份；1～3mm石英砂3～20份；结合剂2～15份；Al2O3粉1～15份。优点是：选择电熔镁砂、烧结镁砂混合有利于镁砂之间的空隙填补，并且石英砂在高温下与MgO反应产生膨胀，可抵挡钢渣对耐火材料的渗透，同时反应时产生的低熔点物相少，提高了耐火材料抗钢渣侵蚀性。
Magnesium dry material for tundish and preparation method of magnesium dry material
The invention relates to a magnesian dry material for a tundish and a preparation method thereof. The magnesian dry material comprises the following raw materials: 5-10 parts of 0-1mm fused magnesite; 5-10 parts of fused magnesite of 1-3 mm; 6 to 15 parts of 200-mesh fused magnesite; 10 to 20 parts of 1 to 3 mm sintered magnesia; 15 to 30 parts of 3 to 5 mm sintered magnesia; 2 to 20 parts of 0 to 1mm quartz sand; 3-20 parts of 1-3mm quartz sand; 2-15 parts of a binding agent; and 1 to 15 parts of Al2O3 powder. The method has the advantages that the fused magnesite and the sintered magnesite are selected to be mixed to facilitate gap filling between the magnesite, the quartz sand reacts with MgO at a high temperature to generate expansion, permeation of the steel slag to the refractory material can be resisted, meanwhile, few low-melting-point phases are generated in the reaction process, and the steel slag corrosion resistance of the refractory material is improved.
本发明涉及一种中间包的镁质干式料及制备方法，其原料包括：0～1mm电熔镁砂5～10份；1～3mm电熔镁砂5～10份；200目电熔镁砂6～15份；1～3mm烧结镁砂10～20份；3～5mm烧结镁砂15～30份；0～1mm石英砂2～20份；1～3mm石英砂3～20份；结合剂2～15份；Al2O3粉1～15份。优点是：选择电熔镁砂、烧结镁砂混合有利于镁砂之间的空隙填补，并且石英砂在高温下与MgO反应产生膨胀，可抵挡钢渣对耐火材料的渗透，同时反应时产生的低熔点物相少，提高了耐火材料抗钢渣侵蚀性。
Magnesium dry material for tundish and preparation method of magnesium dry material
一种中间包的镁质干式料及制备方法
DONG ZHAOYU (author) / CHEN DONGMING (author) / ZHOU KE (author) / ZHAO XIANHUA (author) / WANG CHENGLIN (author) / ZHANG YIXIAN (author) / MA JIALIANG (author) / JIN ZHAO (author) / GONG HUAZE (author) / CUI BO'AO (author)
2024-06-21
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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