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A kind of production method of high aluminum steel

A production method and high-aluminum steel technology, applied in the field of steelmaking, can solve problems such as billet quality problems, steel breakout accidents, high-alumina steel methods that have not yet appeared, and achieve the effect of avoiding lubrication and steel breakout accidents

Active Publication Date: 2016-06-08
PANGANG GRP XICHANG STEEL & VANADIUM CO LTD
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  • Abstract
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  • Application Information

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Problems solved by technology

[0002] Transformation-induced plasticity steel (TRIP steel) is an important advanced high-strength steel for automobiles. When a steel plant smelted this steel, it was found that due to the high aluminum content in this steel, the lubrication performance of mold slag was easily affected during the casting process, thus Leading to billet quality problems and steel breakout accidents, in the prior art, there has not been a high-aluminum steel method that can overcome the above technical problems

Method used

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Embodiment Construction

[0012] Hereinafter, the production method of the high alumina steel according to the present invention will be described in detail with reference to exemplary embodiments.

[0013] After observing and analyzing the production process of multi-furnace high-alumina steel at the production site, it was found that the main reason for high-alumina steel to be prone to steel breakout accidents is: due to the high Al content in high-alumina steel, if it is secondary oxidized during the casting process, It will cause a large amount of alumina inclusions in the molten steel, which will affect the quality of the plate and the lubricating effect of the mold slag, and even cause a steel breakout accident. Therefore, in the casting process, the main thing is how to prevent the molten steel from being oxidized again and affecting the lubricating effect of the mold slag. Based on this, the present invention proposes a production method of high aluminum steel.

[0014] The production method o...

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Abstract

The invention discloses a production method of a high aluminum steel. The production method comprises molten steel smelting and continuous casting, in the continuous casting process, long nozzles and argon-blowing protection casting are adopted from big bags to pouring boxes, stopper rods of the pouring boxes aren't blown with argon, at the beginning of casting, the steel free of high aluminum is firstly cast, and the high aluminum steel is cast after the casting speed is stabilized. Through the method, when the high aluminum is cast, aluminum in the molten steel can prevent from secondary oxidation and a vast of alumina impurities cannot be generated in the molten steel, thus the product quality isn't affected, the lubricating effect is protected, and the breakout accidents can be avoided.

Description

technical field [0001] The invention relates to the technical field of steelmaking, and more specifically, relates to a production method of high-alumina steel. Background technique [0002] Transformation-induced plasticity steel (TRIP steel) is an important advanced high-strength steel for automobiles. When a steel plant smelted this steel, it was found that due to the high aluminum content in this steel, the lubrication performance of mold slag was easily affected during the casting process, thus Leading to billet quality problems and steel breakout accidents, in the prior art, there has not been a high-aluminum steel method that can overcome the above-mentioned technical problems. Contents of the invention [0003] In view of the deficiencies in the prior art, one purpose of the present invention is to solve one or more problems in the above prior art. For example, one of the objectives of the present invention is to provide a production method of high aluminum steel ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C33/04B22D11/117B22D11/103B22D11/18C22C38/28
Inventor 黄基红彭和平
Owner PANGANG GRP XICHANG STEEL & VANADIUM CO LTD
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