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Method for producing high-quality ductile iron through 100% waste steel and refining and purifying agent production method

A production method and purification agent technology, applied in the field of producing high-quality ductile iron, can solve problems such as unstable effect, impure molten steel, and defects of forged products, and achieve the effects of solving casting defects, reducing production costs, and increasing utilization

Inactive Publication Date: 2017-11-21
南京威尔特铸造材料有限公司
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Problems solved by technology

At present, the current method for producing high-quality ductile iron from scrap steel still has disadvantages. The total refining agent used in it has the effect of partially refining and purifying molten steel, but the effect is unstable, and it cannot be impure to molten steel. Subsequent forging products will be affected, and it is easy to cause defects in forged products. Therefore, we propose a method for producing high-quality ductile iron from 100% scrap steel and a production method for refining and purifying agents

Method used

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Embodiment Construction

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in combination with the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0024] The invention provides a technical solution: a method for producing high-quality ductile iron from 100% scrap steel and a production method for refining and purifying agent, including a method for producing high-quality nodular iron with 100% scrap steel and a production method for refining and purifying agent: the method for producing high-quality ball gas from 100% scrap steel The specific steps are as follows: Preparatory work: The required equipment and materials...

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Abstract

The invention discloses a method for producing high-quality ductile iron through 100% waste steel and a refining and purifying agent production method. The method for producing high-quality ductile iron through 100% waste steel and the refining and purifying agent production method are included. The waste steel is utilized for producing high-quality ductile iron so that the waste steel can be recycled. The 100% waste steel can be used for producing nodular cast iron, vermicular graphite cast iron and plain cast iron, so that the production cost is greatly reduced, a path is found for the waste steel, and the waste steel recycling utilization rate is increased; and according to the refining and purifying agent, molten steel can be stably refined and purified, and the casting defect caused by the fact that the molten steel is not pure is thoroughly overcome.

Description

technical field [0001] The invention relates to the technical field of a method for producing high-quality nodular iron, and specifically relates to a method for producing high-quality nodular iron from 100% scrap steel and a method for producing a refining and purifying agent. Background technique [0002] Affected by factors such as rising coke prices, environmental protection, and users' higher and higher requirements for casting quality. And because the price of pig iron continues to rise, there is a large amount of scrap steel in the society and the price is low. Therefore, in recent years, the method of adding carburant to scrap steel has been widely used to produce ductile iron and gray iron. If the process is operated correctly, it can not only improve the quality of the comprehensive physical properties of the casting, but also reduce the production cost. At present, the current method for producing high-quality ductile iron from scrap steel still has disadvantages...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C33/08C21C1/10
CPCC21C1/10C22C33/08
Inventor 袁桂荣
Owner 南京威尔特铸造材料有限公司
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