CaO-BaO-MgO-Al2O3 quaternary slag system tundish covering agent and preparation method thereof

• Main Authors: CHEN SHOUJIE, GAO JINXING, WANG YONGYUAN, LUO ZHIGANG, FENG YAN
• Format: Patent
• Language: Chinese; English
• Published: 12.04.2022
• Subjects: CASTING; CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES; PERFORMING OPERATIONS; POWDER METALLURGY; TRANSPORTING

The invention provides a CaO-BaO-MgO-Al2O3 quaternary slag system tundish covering agent and a preparation method of the CaO-BaO-MgO-Al2O3 quaternary slag system tundish covering agent, and belongs to the technical field of metallurgical auxiliary materials. The CaO-BaO-MgO-Al2O3 quaternary slag system tundish covering agent is prepared from the following raw materials in parts by weight: 8 to 25 parts of magnesia powder, 37 to 69 parts of calcium slag powder, 16 to 41 parts of barium aluminate powder, 1 to 3 parts of regenerated cryolite powder and 1.5 to 3 parts of binder. Based on reasonable selection and scientific proportioning of the raw materials, the obtained covering agent has good inclusion adsorption capacity and excellent slag melting effect; material selection does not corrode the ladle lining, and the problems of sintering, crusting and the like are avoided; and the phenomena of molten steel pollution caused by recarburization, silicon increase and the like are avoided. 本发明提供了一种CaO-BaO-MgO-Al2O3