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A method for improving the purity of nickel-nickel-nickel-copper material

A nickel-nickel-copper, purity technology, applied in the field of material purification, can solve problems affecting the performance of nickel-nickel-copper metal, X-ray tube damage, danger, etc.

Active Publication Date: 2020-10-23
SHAANXI SIRUI ADVANCED MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, due to the inevitable impurities in the production process and materials, the impurities in nickel-nickel-nickel copper affect the metal properties of nickel-nickel-nickel copper, which causes it to fail to meet the preparation requirements when manufacturing medical x-ray tubes, which may cause x-ray tubes to be damaged during use. damage and danger in

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A method for improving the purity of nickel-nickel-nickel-copper material mainly comprises the following steps:

[0026] S1: Preprocessing

[0027] Pickling: Completely immerse the nickel-nickel-nickel-copper raw material in absolute ethanol, use an ultrasonic cleaning device to pickle for 10-20 minutes, and clean and dry the nickel-nickel-nickel copper raw material;

[0028] Surface treatment: put the nickel-nickel-nickel copper material after pickling in the electrolyte, and pass the current density at 3-5A / cm 2 Electrolyze the surface layer of nickel-white copper with high current to remove the oxide layer on the surface of nickel-white copper, and clean the surface of nickel-white copper with a high-power blower. The electrolyte consists of 3% hydrochloric acid, 2% oxalic acid, 5% citric acid, 2% ammonium sulfate, deionized water remainder composition;

[0029] S2: vacuum induction melting

[0030] Put the pretreated nickel-nickel-nickel copper raw material in a ...

Embodiment 2

[0034] It is basically the same as Example 1, except that the nickel-nickel-copper raw material in S1 is subjected to a slagging and impurity removal process before pickling: the nickel-nickel-nickel raw material is heated to 1200K to obtain a melt raw material, and a mixed slagging agent is added thereto, The mass ratio of the mixed slagging agent to the melt raw material is 1:8, and the mixed slagging agent is a cone-shaped material pressed into a slagging agent, a cosolvent and a protective agent at a mass ratio of 10:9:2, and the slagging agent For CaO and SiO 2 Composed at a mass ratio of 1:1, the co-solvent is CaCl 2 , the protective agent is composed of borax and magnesium 3:1, the mixed slagging agent reacts with the impurities in the melt raw material to generate oxide residue, and the oxide residue floating on the surface of the molten raw material is removed by using the slagging equipment until There is no obvious oxide residue on the surface of the melt, and the ...

Embodiment 3

[0036] It is basically the same as Example 1, except that the nickel-nickel-copper raw material in S1 is subjected to a powder-making and impurity-removing process before pickling: the nickel-nickel-nickel raw material is cut into rod-shaped materials, and the rod-shaped materials are clamped on the smelting machine, Electrode induction melting until the rod-shaped material is melted into a liquid, the liquid falls through the settling tube under the action of gravity, and the liquid material is blown into fine droplets by using a high-temperature injection gas. The high-temperature injection gas is 600K argon, and the high-temperature injection gas The spray speed is 400m / s, and the liquid droplets condense into solid powder during the sedimentation process. The solid powder is sorted to obtain nickel-nickel-nickel powder, and the nickel-nickel-nickel powder is subjected to cold isostatic pressing to obtain the nickel-nickel-nickel raw material after impurity removal. Cold isos...

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PUM

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Abstract

The invention provides a method for improving the purity of an alpaka material. The method comprises the following steps: S1, pickling is carried out; S2, a pretreated alpaka raw material is placed ina vacuum induction melting furnace, and carries out vacuum induction melting to a molten state, and a solid electrode is prepared through a mold material; and S3, the solid electrode obtained in theS2 serves as a remelting electrode of vacuum self-consumption remelting, a water-cooled copper crucible serves as a consumable electrode to correspond to the solid electrode, electric arc is introduced between the two electrodes, and the solid electrode is electrically melted in the water-cooled copper crucible and cooled to obtain the purified alpaka. In the step S1, ultrasonically pickling of the alpaka is performed in absolute ethyl alcohol, the pickled alpaka raw material is placed in an electrolyte for electrolysis, and an oxide layer on the surface of the alpaka is removed. The method has the advantages the process is perfect, the purification efficiency is high, and the purity of the prepared alpaka is high.

Description

technical field [0001] The invention belongs to the technical field of material purification, and in particular relates to a method for improving the purity of nickel-nickel-nickel copper material. Background technique [0002] Cupronickel is a copper-based alloy with nickel as the main additive element. It is silvery white and has metallic luster, so it is called cupronickel. Pure copper plus nickel can significantly improve strength, corrosion resistance, hardness, electrical resistance and pyroelectricity, and reduce the temperature coefficient of resistivity. Therefore, compared with other copper alloys, cupronickel has exceptionally good mechanical and physical properties, good ductility, high hardness, beautiful color, corrosion resistance, and rich deep drawing performance. It is widely used in shipbuilding, petrochemical, electrical appliances, instruments, medical equipment, Daily necessities, handicrafts and other fields, and it is also an important resistance and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C1/03C22C9/06C25F1/04
CPCC22C1/03C22C9/06C25F1/04
Inventor 陈梅杨平侯蕊王小明
Owner SHAANXI SIRUI ADVANCED MATERIALS CO LTD
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