Production equipment for reducing content of carbon in nickel or nickel alloy

Abstract

The invention relates to a decarbonization technology in nickel and nickel alloy smelting, and particularly relates to production equipment for reducing the content of carbon in nickel or nickel alloy. The invention is mainly used for recycling of the nickel and nickel alloy old materials (including waste materials, recycled materials and leftover materials), and belongs to the field of metal refining and impurity removal. A smelting vacuum chamber is connected with a sampling chamber, a main feeding chamber, an alloy feeding chamber and an ingot mold chamber correspondingly; a crucible is arranged in the smelting vacuum chamber, the gas outlets of the sampling chamber, the main feeding chamber, the alloy feeding chamber and the ingot mold chamber are connected to a filter through pipelines correspondingly, an air outlet of the filter communicates with a booster pump and a mechanical pump correspondingly, the gas outlet of the mechanical pump communicates with an air inlet of the filter through a pipeline, and roots pumps are arranged on the pipelines; and a gas inlet of the booster pump communicates with the smelting vacuum chamber through a pipeline, and a valve is arranged on the pipeline. The decarbonization method mainly comprises three processes including nickel foam adding, electromagnetic stirring and vacuum degassing, so that the requirements for reducing the carbon content of the alloy melt and improving the purity of the material are met.

Description

technical field [0001] The invention relates to the decarburization technology in the smelting of nickel and nickel alloys, in particular to a production equipment for reducing the carbon content in nickel or nickel alloys, which is mainly used for nickel and nickel alloy old materials (including waste materials, recycled materials, leftover materials) ) for recycling, which belongs to the field of metal refining and impurity removal. Background technique [0002] Nickel and nickel alloys have excellent mechanical, anti-corrosion and corrosion resistance properties, and are widely used in aerospace, military and special fields. Due to the high price of nickel, the use of old materials (including waste materials, recycled materials, and leftover materials) during production can greatly reduce production costs and improve economic benefits. However, due to factors such as oil stains on the surface of old materials or environmental pollution, the carbon content seriously excee...

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a kind of production equipment that reduces carbon content in nickel or nickel alloy, solve the practical problem of producing qualified nickel alloy ingot with old material (comprising waste material, reclaimed material, leftover material), remove nickel and nickel Excessive carbon in the melt in the alloy smelting process makes it possible to use old materials (including scrap, recycled materials, and leftovers) in the production of nickel and nickel alloys

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