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Production method of high-quality ferrotitanium by electric furnace remelting method of Panxi titanium raw material

A technology of ferro-titanium alloy and titanium raw materials, which is applied in the field of producing high-quality ferro-titanium alloy, can solve the problems of high impurity content, achieve the effects of reduced impurity content, excellent mutual solubility, and easy process

Active Publication Date: 2016-05-25
攀枝花市银江金勇工贸有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to make up for the shortcomings of the metal reduction method for preparing ferro-titanium alloys, and in view of the high impurity content of the vanadium-titanium magnetite raw materials in the Panxi area, the applicant explored the feasibility of producing various grades of ferro-titanium from FeTi30 to FeTi90 by the remelting method. The test of ferro-titanium smelting by medium-frequency induction furnace was carried out. Through the multi-furnace test, good metallurgical effect was obtained. The production process of ferro-titanium by remelting method is technically feasible. The series of ferro-titanium products all meet the requirements of the national standard and are of high quality. This industrial production method is well known at home and abroad. None reported

Method used

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  • Production method of high-quality ferrotitanium by electric furnace remelting method of Panxi titanium raw material
  • Production method of high-quality ferrotitanium by electric furnace remelting method of Panxi titanium raw material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] FeTi30 is produced according to 400 kg raw materials, raw materials and auxiliary materials include:

[0040] 120Kg of titanium-rich material in Panxi area, 280kg of steel scrap, 1Kg of metal aluminum, 4Kg of quicklime, and 1.2Kg of auxiliary reducing agent;

[0041]The specific process steps are as follows:

[0042] Put the iron and steel material into the intermediate frequency furnace, melt it at a temperature above 1560°C, add aluminum reducing agent, calcium metallurgical auxiliary material and auxiliary reducing agent in sequence, after removing slag, seal the furnace mouth with argon, and then put the Panxi area Slowly add titanium-rich material into molten metal and stir while adding. After the metal is completely melted, pour titanium-ferro metal liquid into a cooling tank whose tank wall temperature is not lower than 200°C. After cooling for 24-36 hours, titanium-ferroalloy products are obtained.

[0043] After testing, the chemical composition and content (w...

Embodiment 2

[0049] FeTi40 is produced according to 400 kg raw materials, raw materials and auxiliary materials include:

[0050] 160Kg of titanium-rich material in Panxi area, 240kg of steel scrap, 1.5Kg of metal aluminum, 4Kg of quicklime, 2Kg of auxiliary reducing agent;

[0051] The specific process steps are as follows:

[0052] Put the iron and steel material into the intermediate frequency furnace, melt it at a temperature above 1560°C, add aluminum reducing agent, calcium metallurgical auxiliary material and auxiliary reducing agent in sequence, after removing slag, seal the furnace mouth with argon, and then put the rich Slowly add titanium material into the molten metal, stirring while adding. After the metal is completely melted, pour the ferrotitanium metal liquid into a cooling tank whose wall temperature is not lower than 200°C. After cooling for 24-36 hours, the ferrotitanium alloy product is obtained.

[0053] After testing, the chemical composition and content (wt%) of th...

Embodiment 3

[0059] FeTi50 is produced according to 400 kg raw materials, raw materials and auxiliary materials include:

[0060] 200Kg of titanium-rich material in Panxi area, 200kg of steel scrap, 2Kg of metal aluminum, 4.5Kg of quicklime, and 3Kg of auxiliary reducing agent;

[0061] Put the iron and steel material into the intermediate frequency furnace, melt it at a temperature above 1560°C, add aluminum reducing agent, calcium metallurgical auxiliary material and auxiliary reducing agent in sequence, after removing slag, seal the furnace mouth with argon, and then put the rich Slowly add titanium material into the molten metal, stirring while adding. After the metal is completely melted, pour the ferrotitanium metal liquid into a cooling tank whose wall temperature is not lower than 200°C. After cooling for 24-36 hours, the ferrotitanium alloy product is obtained.

[0062] After testing, the chemical composition and content (wt%) of the FeTi50 product are as follows:

[0063] Ti: 50...

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Abstract

The invention belongs to the field of ferrotitanium smelting and particularly relates to a production method of high-quality ferrotitanium by an electric furnace remelting method of a Panxi titanium raw material. The production method comprises the following steps: with 100Kg of raw materials including a Panxi-region titanium-rich material and a steel material as weight reference, adding auxiliary materials into the raw materials according to weight proportion; and smelting by an electric furnace remelting method to obtain a product of high-quality ferrotitanium in which the total impurity content is lower than 5%, wherein the raw materials include 30-90% of Panxi-region titanium-rich material and 10-70% of steel material, and the added auxiliary materials include 0.25-1.0Kg of aluminum reducing agent, 0.3-1.0Kg of auxiliary reducing agent and 1.0-1.5Kg of calcium metallurgy auxiliary material. In the invention, the source of raw materials is stable, the production technology is safe and reliable, the electric energy consumption is low, the ferrotitanium grade is high, the impurity content is low, a high-quality ferrotitanium product with stable quality is formed, and the production cost is reduced; and moreover, the industrialization of production by the ferrotitanium remelting method is realized, and the need of users for high-quality high-grade ferrotitanium is met.

Description

technical field [0001] The invention belongs to the field of ferro-titanium alloy smelting, and specifically relates to the production of high-quality ferro-titanium alloy by remelting Panxi titanium raw materials in an electric furnace. Background technique [0002] The density of titanium is 4.5g / cm 3 , the melting temperature is 1660°C, and has a strong interaction with sulfur, oxygen, and nitrogen. In order to obtain fine TiN particles dispersedly distributed, continuous casting is a necessary condition. In stainless steel, boron-treated steel and IF steel, titanium acts as a stabilizer and forms precipitates with carbon and nitrogen. Adding titanium to hot-rolled steel can play a role in precipitation strengthening and controlling the form of sulfide. Adding a small amount of titanium to continuous casting steel can improve the surface quality of the slab. In the welding heat-affected zone of thin plate steel, micro-alloyed forged steel and high-strength low-alloy s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C35/00C22C1/02C22C14/00C22B9/16
CPCC22B9/003C22B9/16C22C1/02C22C14/00C22C35/00
Inventor 何金勇宋国菊蒲芝明何源何海军
Owner 攀枝花市银江金勇工贸有限责任公司
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