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Method for preparing silicon-calcium-barium-aluminum alloy from ore raw materials

A technology of aluminum alloy and silicon calcium barium, which is applied in the field of multi-component alloy preparation, can solve the problems of difficult deoxidation products, denaturation, and high cost of deoxidation, and achieve the effects of reducing the number of inclusions, enhancing deoxidation ability and desulfurization ability, and reducing the number of inclusions

Active Publication Date: 2021-07-02
SHIZUSN KETONG METALLURGY IND & TRADE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Alloy deoxidation can improve the utilization rate of deoxidizer, but the cost of deoxidation is high, and it is not easy to denature the deoxidation product

Method used

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  • Method for preparing silicon-calcium-barium-aluminum alloy from ore raw materials
  • Method for preparing silicon-calcium-barium-aluminum alloy from ore raw materials
  • Method for preparing silicon-calcium-barium-aluminum alloy from ore raw materials

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The raw material components of a silicon-calcium-barium-aluminum alloy include 35% of silica, 9% of lime, 12.5% ​​of barium ore, 6% of bauxite, 30% of semi-carbon, 3% of fluorite, 1.5% of stibnite, bismuth 0.5% ore, the balance of lead and zinc slag.

[0031] Among them, silica contains SiO 2 ≥98%, lime contains CaO≥88%, barium ore contains BaCO 3 ≥80%, bauxite containing Al 2 o 3 ≥80%, blue carbon containing C 固 ≥85%, fluorite contains CaF 2 ≥80%, stibnite containing Sb 2 S 3 ≥70%, bismuthite contains Bi 2 S 3 ≥80%, lead-zinc slag contains Fe≥68%.

[0032] The preparation of the above-mentioned silicon-calcium-barium-aluminum alloy includes:

[0033] S1: Clean and pulverize silica, lime, barium ore, bauxite, semi-coke, fluorspar, stibnite, bismuthnite and lead-zinc slag;

[0034] S2: Mix the crushed silica, lime, barium ore, bauxite, semi-coke, stibnite, and bismuthite in proportion, and add the mixture to the preheated submerged arc furnace for smelting in ...

Embodiment 2

[0038]A silicon-calcium-barium-aluminum alloy, the raw material components include 32% of silica, 11% of lime, 13% of barium ore, 5% of bauxite, 32% of semi-carbon, 2% of fluorite, 1.2% of stibnite, bismuth 0.2% ore, the balance of lead and zinc slag.

[0039] Among them, silica contains SiO 2 ≥98%, lime contains CaO≥88%, barium ore contains BaCO 3 ≥80%, bauxite containing Al 2 o 3 ≥80%, blue carbon containing C 固 ≥85%, fluorite contains CaF 2 ≥80%, stibnite containing Sb 2 S 3 ≥70%, bismuthite contains Bi 2 S 3 ≥80%, lead-zinc slag contains Fe≥68%.

[0040] The above-mentioned silicon-calcium-barium-aluminum alloy is prepared in the same manner as in Example 1.

[0041] The prepared silicon-calcium-barium-aluminum alloy contains: Si 54.1%, Ca 19.4%, Ba 17.9%, Al 6.8%, Sb 1.4%, Bi 0.2%, S 0.03%, P 0.02%, C 0.02% , Fe 0.13%.

Embodiment 3

[0043] A silicon-calcium-barium-aluminum alloy, the raw material components include: 35% silica, 9% lime, 12.5% ​​barium ore, 6% bauxite, 30% semi-coke, 3% fluorite, 1.5% stibnite, lead-zinc Slag balance.

[0044] The above-mentioned silicon-calcium-barium-aluminum alloy is prepared in the same manner as in Example 1.

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Abstract

The invention discloses a method for preparing a silicon-calcium-barium-aluminum alloy from ore raw materials, and relates to the technical field of multi-component alloy preparation. The method comprises the following steps of S1, cleaning silica, lime, barium ore, bauxite, semi-coke, fluorite, stibnite, bismuthine and lead-zinc slag, and crushing; S2, mixing the crushed silica, lime, barium ore, bauxite, semi-coke, stibnite and bismuthine in proportion, adding the mixture into a preheated submerged arc furnace for smelting in multiple times, and feeding once every 25 to 40 minutes; S3, adding the fluorite into the furnace 20 to 30 minutes before the smelted alloy is discharged out of the furnace; and when the furnace temperature is higher than 1780 DEG C, adding the lead-zinc slag to lower the furnace temperature, and obtaining the silicon-calcium-barium-aluminum alloy after normal circulating smelting is conducted for 2.5 to 4 h. The silicon-calcium-barium-aluminum alloy prepared by the method provided by the invention has excellent mechanical properties, high hardness and good wear resistance; and the silicon-calcium-barium-aluminum alloy is good in deoxidizing capacity and desulfurizing capacity, can be used as a deoxidizing agent and a desulfurizing agent for a steelmaking process, and is beneficial to effectively improving the quality of steel.

Description

technical field [0001] The invention belongs to the technical field of multi-element alloy preparation, and in particular relates to a method for preparing silicon-calcium-barium-aluminum alloy with ore raw materials. Background technique [0002] With the continuous advancement of metallurgical technology and the increasing requirements of the market for the quality of steel products, some special steel grades have very strict requirements on the quantity and form of non-metallic inclusions in steel. Experiments show that when the mass fraction of oxygen in steel is changed from 30×10 -6 Reduced to 10×10 -6 When it is less than 30 times, its contact fatigue life can be increased by nearly 30 times, which greatly improves the performance of steel. Therefore, how to reduce the oxygen content in steel and improve the purity of steel is particularly important. [0003] At present, the deoxidation methods used in industrial production mainly include precipitation deoxidation,...

Claims

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Application Information

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IPC IPC(8): C21C7/06C21C7/064C22C1/03C22C35/00
CPCC21C7/0006C21C7/06C21C7/0645C22C1/03C22C35/00Y02P10/20
Inventor 张芮鹏郭建平杜强米进兵雍展国
Owner SHIZUSN KETONG METALLURGY IND & TRADE
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