A thin strip continuous casting cloth flow slag removal method

Abstract

A thin strip continuous casting method for distributing slag removal. A line wave electromagnetic induction device is installed above the molten pool surrounded by two counter-rotating crystallization rollers and side sealing plates, and on both sides of the flow distributor. An electromagnetic induction device is respectively arranged on the outside of the flow distributor; the height of the upper edge of each outlet hole on the flow distributor from the liquid level of the molten pool is gradually decreasing from the middle of the flow distributor to both ends of the flow distributor, or from one end of the flow distributor to the distribution The other end of the flow device is gradually lowered, so that the liquid level in the molten pool presents a certain height difference, and the molten steel in the molten pool forms a tendency to move from one side to the other; the traveling wave electromagnetic induction device makes the surface of the molten pool Under the action of Lorentz force, the molten steel has directional movement, which drives the scum above to flow to the side sealing plate area of ​​the molten pool, and flows out through the slit formed between the side sealing plate and the molten pool to realize the slag removal on the surface of the molten pool. Do not allow dross to appear on the surface of the cast strip.

Description

Technical field [0001] The present invention relates to the field of thin belt continuous castings, and more particularly to a thin belt continuous casting flow residue method. Background technique [0002] The double roller thinband continuous casting is a crystallizer that is rotated in two opposite directions, and the liquid metal directly produces a growth process having a thickness of less than 10 mm of tape steel. Compared to traditional thin belt production processes, this technology has advantages to shorten process flows, energy saving, reducing production costs, and improving the mechanical properties of striped mechanics, so the technology is considered to be the most promising nelective continuous casting technology in the 21st century. one. [0003] The thinband continuous casting process is a cast rolling process with traditional contacted. like figure 1 As shown: Its main process is to inject the steel liquid into the intermediate package, and the steel liquid is d...

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Problems solved by technology

However, this patent does not specify the position of the bottom of the slag weir in the molten pool, so it cannot be guaranteed that the slag weir itself will not affect the casting belt

[0014] Although the above-mentioned patents have proposed methods for preventing and removing scum in the thin strip continuous casting pool in detail from two aspects, the added auxiliary equipment is generally too large, and too many quality influencing factors have been added.

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