Ferrotitanium with low silicon and its preparation method

A technology of silicon titanium and iron surplus, applied in the field of pure titanium, can solve the problems of anti-aging, plasticity, anti-atmospheric corrosive mechanical processing performance, and the effect of valuable element titanium is not very obvious. The method is simple and reliable, beneficial to existence and control, and the effect of low investment

Inactive Publication Date: 2003-10-08
江苏江南铁合金有限公司
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Problems solved by technology

However, the use of this kind of low-silicon ferro-titanium does not require some other elements, so when smelting steel, the deoxidation of molten steel and the control of the size of the primary grain of the steel in the austenitic state a...

Method used

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preparation example Construction

[0015] The above-mentioned low-silicon ferro-titanium preparation method uses titanium concentrate and titanium waste as raw materials, and adopts a smelting method combining thermite method and remelting method. Concretely proceed in accordance with the following steps in turn, select materials and bake according to requirements; mix the main material, refining material and ignition agent respectively according to the weight ratio, the main material is composed of titanium concentrate, aluminum particles, iron phosphorus, lime, potassium chlorate, refining The material is composed of aluminum particles, iron phosphorus, lime, and potassium chlorate, and the ignition agent is composed of aluminum particles, iron phosphorus, and sodium nitrate; a certain amount of base material composed of the main material and the ignition agent is put into the melting furnace; the ignition agent is excited by red fire; After the molten pool is formed by the reaction, put the main material into...

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Abstract

A low-Si ferrotitanium contains Ti (35-75 wt.%), Al (1-12 wt.%), Si (0-1.5 wt.%), C (0-0.05 wt.%), P (0-0.02 wt.%), S (0-0.02 wt.%) and Fe (rest), and is prepared from titanium ore concentrate and waste titanium material through smelting, or from waste steel and pure titanium through resmelting. Its advantage is high purity.

Description

Technical field [0001] The invention belongs to the technical field of ferroalloy production, and relates to a ferroalloy and a preparation method thereof, in particular to a smelting method in which titanium concentrate and titanium waste are used as raw materials, a combination of thermite method and remelting method is adopted, or scrap steel and pure titanium are used , low-silicon ferro-titanium obtained by remelting in an open-type intermediate frequency furnace and a preparation method thereof, the low-silicon ferro-titanium is suitable for smelting deep-drawing thin steel plates, especially suitable for smelting IF steel for automobiles. Background technique [0002] With the development of various steelmaking and refining technologies, people have been able to control the harmful elements in steel relatively easily, thereby improving the performance of steel grades to meet the needs of different manufacturing industries. Therefore, the iron and steel industry has al...

Claims

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Application Information

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IPC IPC(8): C22C35/00
Inventor 梅国平梅才平徐建民
Owner 江苏江南铁合金有限公司
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