Molten steel cleaning agent

A cleaning agent and molten steel technology, applied in the field of metallurgy, can solve the problems of ineffective removal of oxides, limited removal effect, scrapped castings, etc., and achieve the effects of improving the magnetic conduction effect, improving the purity of molten steel, and reducing the casting temperature

Pending Publication Date: 2020-11-03
姚玉美
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Problems solved by technology

In molten steel, there will be suspended non-metallic inclusions and gas dissolved in the metal solution. If not effectively removed, it will eventually cause casting defects, and may even lead to the scrapping of the entire casting. The existing removal of non-metallic inclusions and The removal effect of the gas method is limited, and some oxide inclusions cannot be effectively removed

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Embodiment Construction

[0012] In order to make the technical means realized by the present invention, creative features, goals and effects easy to be understood, the present invention will be further elaborated below in conjunction with specific embodiments.

[0013] The invention provides a technical solution: a cleaning agent for molten steel, which is used to remove non-metallic inclusions suspended in molten steel and gas dissolved in metal solution, improve the quality of molten steel, and reduce slag pores and porosity of casting products , the molten steel cleaning agent includes cement 70% to 80%, fluorite powder 30% to 20%

[0014] In this embodiment, the cement is Portland cement, the fluorite powder is first-grade fluorite powder, the cement content is 75%, and the fluorite powder content is 25%. By adding a molten steel cleaning agent to the furnace, the quality of molten steel can be improved and the number of casting products can be reduced. Excellent slag hole and porosity, which grea...

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Abstract

The invention discloses a molten steel cleaning agent which is used for removing suspended non-metallic inclusions in molten steel in a molten state and gas dissolved in a metal solution, improving the quality of the molten steel and reducing the slag hole and pore rate of a casting product. The molten steel cleaning agent comprises 70%-80% of cement and 30%-20% of fluorite powder. By adding the molten steel cleaning agent into a furnace, the quality of molten steel can be improved, the slag hole and pore rate of casting products is reduced, and the percent of pass of the casting finished products is greatly increased. Different from the situation that similar products are limited to slagging in a ladle outside a furnace, extra temperature drop is caused by standing of molten steel, and heat is lost, the in-furnace slagging characteristic of the molten steel cleaning agent can reduce furnace wall slag adhesion, lower the furnace wall thickness, improve the induction heating efficiencyand reduce the energy consumption, the use amount of the molten steel cleaning agent is smaller than that of similar products on the market, the capacity of removing gas and inclusions in molten steelis better, the economic benefit is higher, and the molten steel cleaning agent is suitable for wide application and popularization.

Description

technical field [0001] The invention relates to the field of metallurgy, in particular to a molten steel cleaning agent. Background technique [0002] Molten steel is steel in a liquid state, usually cast into ingots, or directly cast into castings. In molten steel, there will be suspended non-metallic inclusions and gas dissolved in the metal solution. If not effectively removed, it will eventually cause casting defects, and may even lead to the scrapping of the entire casting. The existing removal of non-metallic inclusions and The removal effect of the gas method is limited, and some oxide inclusions cannot be effectively removed. Therefore, we propose a molten steel cleaning agent. Contents of the invention [0003] The object of the present invention is to provide a kind of molten steel cleaning agent, has solved the problem proposed in the background technology. [0004] In order to achieve the above object, the present invention provides the following technical p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21C7/076
CPCC21C7/076Y02P10/20
Inventor 姚玉美
Owner 姚玉美
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