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Low-slag-rate metal smelting technology

A metal smelting and slag technology, which is applied in the field of aluminum alloy material preparation, can solve the problems of increasing the difficulty and workload of smelting operations, high slag content, and incomplete melting of pure element materials, so as to avoid incomplete melting of feeding materials. Thoroughly, reduce the amount of slag, reduce the workload and the effect of work difficulty

Inactive Publication Date: 2019-03-19
湖北新金洋资源股份公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in actual production, it is found that adding pure elemental materials such as silicon often leads to incomplete melting of the pure elemental materials; while adding silicon-containing master alloys leads to a higher slag content in the smelting process, increasing the smelting process. The difficulty and workload of the assignment

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  • Low-slag-rate metal smelting technology

Examples

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Comparison scheme
Effect test

Embodiment 1

[0029] S1: Add 15000kg of A00 aluminum ingot and 530kg of 533 silicon material into the melting furnace, ignite and heat up to melt, and control the temperature in the melting furnace between 730-750°C. When feeding, small materials that are easy to oxidize, such as silicon and iron, are added to the bottom of the furnace, and large materials that are not easy to oxidize, such as aluminum ingots, are added to the upper part. When adding silicon material, place the feeding platform at the furnace mouth, pour metal silicon on the feeding platform, slowly push the silicon into the aluminum water with a rake, and stir fully so that the silicon is completely immersed in the aluminum water. Stir the liquid to confirm whether the metal silicon is completely melted.

[0030] S2: After part of the A00 aluminum ingot is melted, when the A00 aluminum ingot is not completely melted, add 340kg of copper wire into the melting furnace to immerse it in the aluminum liquid, continue to heat up...

Embodiment 2

[0038] S1: Add 14090kg of A00 aluminum ingot and 500kg of 533 silicon material into the melting furnace, ignite and heat up to melt, and control the temperature in the melting furnace between 730-750°C. When feeding, small materials that are easy to oxidize, such as silicon and iron, are added to the bottom of the furnace, and large materials that are not easy to oxidize, such as aluminum ingots, are added to the upper part. When adding silicon material, place the feeding platform at the furnace mouth, pour metal silicon on the feeding platform, slowly push the silicon into the aluminum water with a rake, and stir fully so that the silicon is completely immersed in the aluminum water. Stir the liquid to confirm whether the metal silicon is completely melted.

[0039] S2: After part of the A00 aluminum ingots are melted, when the A00 aluminum ingots are not completely melted, add 350kg of copper wire into the melting furnace to immerse it in the molten aluminum, continue to hea...

Embodiment 3

[0047]S1: Add 14900kg of A00 aluminum ingot and 530kg of 533 silicon material into the melting furnace, ignite and heat up to melt, and control the temperature in the melting furnace between 730-750°C. When feeding, small materials that are easy to oxidize, such as silicon and iron, are added to the bottom of the furnace, and large materials that are not easy to oxidize, such as aluminum ingots, are added to the upper part. When adding silicon material, place the feeding platform at the furnace mouth, pour metal silicon on the feeding platform, slowly push the silicon into the aluminum water with a rake, and stir fully so that the silicon is completely immersed in the aluminum water. Stir the liquid to confirm whether the metal silicon is completely melted.

[0048] S2: After part of the A00 aluminum ingot is melted, when the A00 aluminum ingot is not completely melted, add 340kg of copper wire into the melting furnace to immerse it in the aluminum liquid, continue to heat up ...

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Abstract

The invention relates to the technical field of aluminum alloy material preparation, in particular to a low-slag-rate metal smelting technology. The slag rate generated when an alloy material is supplemented in the alloy smelting process can be effectively decreased, and the workload and the working difficulty in the smelting process can be reduced. The low-slag-rate metal smelting technology is characterized by comprising the steps that 1, aluminum ingots and silicon materials are added into a smelting furnace, and igniting is conducted for temperature rising and smelting; 2, copper wires areadded into the smelting furnace, and temperature rising and smelting continue being conducted; 3, after all the aluminum ingots are smelted, the silicon materials and an aluminum-strontium alloy areadded; 4, after all the materials are smelted, first-time slagging-off operation is conducted; 5, after first-time slagging-off operation is completed, molten aluminum is taken for component detection, and the alloy material containing corresponding elements and cupric bromide are supplemented according to a detection result; 6, when the molten aluminum components meet the requirements, a refiningagent is added for refining; 7, second-time slagging-off operation is conducted on the refined molten aluminum; and 8, after second-time slagging-off operation is completed, the molten aluminum is mixed and stirred to be uniform, and a sample can be cast.

Description

technical field [0001] The invention belongs to the technical field of aluminum alloy material preparation, and in particular relates to a metal smelting process with a low slag rate. Background technique [0002] Aluminum alloy ingots are made of pure aluminum and recycled aluminum, and other elements are added according to international standards or special requirements, such as: silicon (Si), copper (Cu), magnesium (Mg), iron (Fe), etc., to improve the casting process of pure aluminum Alloys formulated from the deficiencies in properties, chemical properties and physical properties are generally used in the foundry industry. [0003] Different types of aluminum alloy products or different uses require different types of chemical elements, and the required standard content of each element is also different. In the intermediate process of actual smelting, it is necessary to detect the composition of the molten aluminum in the furnace, and add the pure element of the requir...

Claims

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Application Information

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IPC IPC(8): C22C1/10C22C1/06C22C21/02C22C1/03
Inventor 苏木阳马靓黄亮张长建
Owner 湖北新金洋资源股份公司
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