Preparation method of environment-friendly smokeless (acidic) molten steel refining agent

A refining agent and acidic technology, which is applied in the field of environment-friendly smokeless (acidic) molten steel refining agent preparation, can solve the problems of unsatisfactory production, quality, cost, environmental protection, lack of compound function for removing molten steel, high content of impurity elements, etc., and achieve convenient Mechanical and manual feeding, prevent the accident of stop pouring, and the effect of uniform composition

Inactive Publication Date: 2019-04-09
西峡县耀辉冶金材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the main components of the existing ladle refining agents (modifiers) on the market are derived from industrial waste or single materials. Due to the serious smoke pollution and high content of impurity elements during use, they lack the ability to remove free oxygen and total oxygen in molten steel and steel slag. More and more complex functions, more and more unable to meet the requirements of production, quality, cost, and environmental protection

Method used

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  • Preparation method of environment-friendly smokeless (acidic) molten steel refining agent
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  • Preparation method of environment-friendly smokeless (acidic) molten steel refining agent

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Embodiment Construction

[0021] The specific implementation manners of the present invention will be described in detail below. A method for preparing an environmentally friendly smokeless (acidic) molten steel refining agent, the refining agent is composed of component A and component B, the component A is a silicon-based deoxidizer, and the dosage is 40-50% by mass, the The composition and dosage of component B are silicate, carbonate or passivated lime single or any combination, the dosage is 50-60% by mass, and the refining agent is alkalinity R≥2.0 (CaO / SiO2) , N≤0.06%, the silicates, carbonates or passivated stones are all made of mechanical pressure balls, and the indicators of each part are:

[0022]

[0023] The mechanical briquetting process is dry mechanical mixing and pressing, and the shape is oblate, and the pressing steps are as follows:

[0024] Step (1): Material preparation, according to the requirements of the production formula, the required various inspection qualified raw mat...

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Abstract

The invention discloses a preparation method of an environment-friendly smokeless (acidic) molten steel refining agent. The refining agent is composed of a component A and a component B, the componentA is a silicon-based deoxidizer, the dosage is 40% by mass, the component B is prepared from one or any composition of silicate, carbonate and passivated lime, the dosage is 50-60% by mass, in the refining agent, alkalinity R is larger than or equal to 2.0 (CaO / SiO2), N is smaller than or equal to 0.06%, and silicate, carbonate and passivated lime are all made by mechanical ball pressing. The environment-friendly smokeless (acidic) molten steel refining agent is safe and environmentally friendly, has no toxic or harmful impurity element, is convenient to store and transport, not likely to beoxidized by air when used at high temperature, high in yield, high in deoxidation efficiency in slag and high in speed, and is the most ideal molten steel refining agent.

Description

technical field [0001] The invention belongs to the technical field of molten steel refining agents, and in particular relates to a preparation method of an environment-friendly smokeless (acid) molten steel refining agent. Background technique [0002] Cord steel is mainly used for tire radial wire and bead wire, and is widely used in various types of automobile tires. It has high strength, high toughness, and corrosion resistance. The production of cord steel is to draw wire rods of about Φ5mm into steel wires of about Φ0.2mm. This process is close to the limit of the steel drawing process, and has strict requirements on the chemical composition of raw materials, the content and shape of inclusions, and the surface quality of wire rods. . Cord steel requires the total oxygen content in the steel to be controlled at a low level to reduce the total amount of inclusions. The total oxygen content of foreign high-quality cord steel is generally ≤20ppm. Cord steel is not allow...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21C7/06
CPCC21C7/06
Inventor 王庆社刘显王佳伟余振西
Owner 西峡县耀辉冶金材料有限公司
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