Control method for prolonging service life of tundish slag line

The invention relates to the technical field of metallurgy, and particularly discloses a control method for prolonging the service life of a tundish slag line, which comprises the following steps: 1) improving the masonry quality of a tundish slag line part, selecting an erosion-resistant refractory...

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Bibliographic Details
Main Authors BIAN HENGGUO, LI FENG, QI XINHUA, LI ZHIPING, GUO YANXI, LI YEPENG, ZHAO GANG, LI TIE, CHENG BING
Format Patent
LanguageChinese
English
Published 31.03.2023
Subjects
CASTING
CASTING OF METALS
CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
PERFORMING OPERATIONS
POWDER METALLURGY
TRANSPORTING
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Summary:The invention relates to the technical field of metallurgy, and particularly discloses a control method for prolonging the service life of a tundish slag line, which comprises the following steps: 1) improving the masonry quality of a tundish slag line part, selecting an erosion-resistant refractory material, forging a tundish lining without cracks, and increasing the masonry thickness of the tundish slag line part by 10mm; (2) a baking system curve is strictly executed in tundish baking, and a heating-heat preservation-heating curve mode is adopted; (3) the adding time of a covering agent during pouring of the tundish is controlled; (4) the steel ladle changing time is shortened and controlled to be 1 minute 30 seconds to 1 minute 50 seconds, and the liquid level height of molten steel in steel ladle changing is controlled; (5) the height of the molten steel of the normally cast tundish is controlled to be 1000-1150 mm; (6) the molten steel casting temperature is optimized; (7) argon is used for protection i
Bibliography:Application Number: CN202211505006