Method for producing ultra-thin hot-rolled strip steel

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United States of America

PATENT NO 12139773
APP PUB NO 20210317543A1
SERIAL NO

17273016

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Abstract

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A method for producing ultra-thin hot-rolled strip steel, the method comprising the following process steps: A. a smelting process: feeding scrap steel into an induction electric furnace (1) for smelting so that the scrap steel melts into molten steel; B. a refining process: using a ladle refining furnace (2) and a ladle vacuum degassing furnace (3) to refine the molten steel; C. a continuous casting process: casting the refined molten steel into a cast strip blank that has a thickness of 1.6-2.5 mm by means of a dual-roller thin strip continuous casting system (4); D. a hot rolling process: directly feeding the cast strip blank that was cast in the continuous casting process to a single-stand hot rolling mill (9) for rolling to produce hot-rolled strip steel, the thickness of the hot-rolled strip steel being 0.8-1.5 mm; E. a cooling coiling process: performing atomizing cooling on the hot-rolled strip steel, and coiling after the strip steel temperature is controlled to be 400-750° C. The present method achieves an extremely compact, environmentally-friendly and economical ultra-thin hot-rolled strip steel production process flow, and achieves the environmentally-friendly and economical continuous production of metal plates and strips.

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Patent Owner(s)

Patent OwnerAddress
BAOSHAN IRON & STEEL CO LTDSHANGHAI 201900

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fang, Yuan Shanghai, CN 95 327
Wu, Jianchun Shanghai, CN 10 19
Zhang, Jian Shanghai, CN 1504 17611

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