Iron-free and manganese-free copper-nickel b10 production process

Abstract

The invention discloses a production process of iron-free and manganese-free white copper B10, which belongs to the field of non-ferrous metal production, improves production efficiency, reduces production costs, and improves the market competitiveness of products. The production process of manganese-nickel-copper B10, nickel-copper B10 is produced through an open-type industrial frequency induction furnace, including the following steps: S10: Baking the furnace when starting the furnace, removing iron impurities before using the carbon material, and baking the crystallizer and stopper before using; S20: Add cupronickel return material, electrolytic copper and electrolytic nickel to the furnace, cover the surface with the first insulation layer, and add deoxidation material for deoxidation; S30: The raw materials in step S20 are cast to obtain cupronickel B7, and the liquid surface covers the second insulation layer during casting ; S40: Add electrolytic nickel, electrolytic copper and deoxidizing material to the bottom material of cupronickel B7, and cover the surface with the first insulation layer; S50: the raw materials in step S40 are cast to obtain cupronickel B10, and the liquid surface covers the second insulation layer during casting.

Description

【Technical field】 [0001] The invention relates to the field of nonferrous metal production, in particular to a production process of iron-free and manganese-free white copper B10. 【Background technique】 [0002] With the rapid development of the computer industry and the increasing demand for high-precision electronic instruments in various industries, the requirements for various high-end electronic and semiconductor components are becoming more and more stringent. [0003] Cupronickel B10 is a copper alloy in which nickel, iron, manganese and other alloying elements are added to pure copper. It has high strength, good corrosion resistance, high hardness, good ductility, and low temperature coefficient of resistivity. A class of good structural materials is also an important class of high-resistance and thermocouple alloys. Although the mechanical properties of cupronickel B10 are very suitable as raw materials for electronic components and semiconductor components, cuproni...

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Problems solved by technology

[0003] Cupronickel B10 is a copper alloy in which nickel, iron, manganese and other alloying elements are added to pure copper. It has high strength, good corrosion resistance, high hardness, good ductility, and low temperature coefficient of resistivity. A class of good structural materials is also an important class of high-resistance and thermocouple alloys. Although the mechanical properties of cupronickel B10 are very suitable as raw materials for electronic components and semiconductor components, cupronickel B10 has ferromagnetism, which negates its superiority. Mechanical properties, if other alloying elements such as iron and manganese are not added, the material will still guarantee its excellent mechanical properties, and at the same time will eliminate the ferromagnetism of white copper B10. Gas is a major problem. At present, no manufacturer has successfully produced iron-free and manganese-free nickel-nickel copper B10 through an open-type power frequency induction furnace.

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