Method for preparing multi-component alloy by using powder spraying technology

Abstract

The invention relates to a method for preparing a multi-component alloy by using a powder spraying technology. The method comprises the following steps that a porous multi-component alloy composite sintering material, blocky dust removal powder, industrial waste residues and semi-coke are added into a refining furnace until all the raw materials in a furnace are molten, and then the dust removal powder is added into an alloy solution through a metal conveying pipeline inserted into the furnace in a powder spraying mode, after the dust removal powder is completely smelted into a metal solution,the alloy liquid is sampled and tested, and after the alloy liquid is compared with designed alloy components, substances such as the dust removal powder and the industrial waste residues with the corresponding mass are further added according to the element content requirement till the smelted multi-component alloy chemical components reach the designed alloy components. According to the method,the multi-component alloy is prepared in a powder spraying mode, the dust removal powder recycled in the metallurgical industry and the industrial waste residues containing metal elements are fully utilized, meanwhile, the effect of an artificial slag former is achieved, a thick slag layer is formed above the liquid level of the alloy solution, and rolling and splashing of molten metal are resisted in the powder spraying process.

Description

technical field [0001] The invention belongs to a preparation method of a multi-element alloy, and in particular relates to a production of a multi-element alloy by resource utilization of dust removal powder and industrial waste slag by means of powder spraying technology. Background technique [0002] In the prior art, when the refining furnace is used to smelt multi-element alloys, because the energy is provided by the high-voltage arc formed between the electrode and the conductive material, the entire smelting process will undergo redox reactions, requiring high air permeability in the furnace. Therefore, the initial Do not add a large amount of powder raw materials at one time when feeding the fabric and during the process, which will cause the furnace to sting and flame out. In addition, due to the continuous oxidation-reduction reaction between various substances and elements during the smelting process, if too much powder raw material is added at one time, or too mu...

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Problems solved by technology

[0003] In order to solve the problem of adding powder metallurgy or other powder raw materials in the ferroalloy industry, because too much powder raw material is added at one time, or too much powder raw material is continuously added to make the gas permeability of the furnace poor, and it is easy to turn off the flame, the powder spraying technology is used to add powder metal, powder alloy or Other powder raw materials are likely to cause technical problems such as arc breakdown of the furnace cover. The invention provides a preparation method of a multi-element alloy. The specific steps are as follows:

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