Method for preparing silicon-calcium-barium-aluminum alloy with ore raw material

An aluminum alloy, silicon calcium barium technology, applied in the field of multi-component alloy preparation, can solve the problems of high deoxidation cost, denaturation, and products that are not easy to deoxidize, so as to reduce the number of inclusions, enhance the deoxidation ability and desulfurization ability, and reduce the number of inclusions. Effect

Active Publication Date: 2022-05-17
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 with ore raw material
  • Method for preparing silicon-calcium-barium-aluminum alloy with ore raw material
  • Method for preparing silicon-calcium-barium-aluminum alloy with ore raw material

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 silicon-calcium-barium-aluminum alloys from ore raw materials, and relates to the technical field of multi-element alloy preparation, including: S1: silica, lime, barium ore, bauxite, semi-coke, fluorite, stibnite, stibnite The bismuth ore and lead-zinc slag are cleaned and crushed; S2: Mix the crushed silica, lime, barium ore, bauxite, semi-coke, stibnite, and bismuthite in proportion, and add the mixture to the pre- Smelting in a hot submerged arc furnace, feeding once every 25 to 40 minutes; S3: adding fluorite to the furnace 20 to 30 minutes before the smelted alloy is released; when the furnace temperature is higher than 1780°C, add lead and zinc slag to reduce the furnace temperature, The silicon-calcium-barium-aluminum alloy can be obtained after 2.5-4 hours of normal circulation smelting. The silicon-calcium-barium-aluminum alloy prepared by the invention has excellent mechanical properties, high hardness, and good wear resistance; good deoxidation and desulfurization capabilities, and can be used as a deoxidizer and desulfurizer for steelmaking processes, 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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Patent Type & Authority Patents(China)
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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