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Tissue conditioning and degasification process for electrolytic nickel sheet

An electrolytic nickel plate and structure technology, applied in the field of metal material processing, can solve the problems of high energy consumption, reduced metal purity, high labor intensity, etc., and achieve the effect of changing the grain growth direction, fine grain structure, and improving compactness.

Active Publication Date: 2009-12-16
CHANGSHA RES INST OF MINING & METALLURGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the process of smelting and thermal processing, the increase of impurity elements such as C, S, P, O, Cu, Fe is often unavoidable, which reduces the purity of the original pure metal, C, S, P, O, Cu, Impurity elements such as Fe are precipitated at the grain boundaries at room temperature, thereby reducing the corrosion resistance and electrical conductivity of nickel alloys
Moreover, in the process of smelting and thermal processing, due to the adhesion and oxidative burning of the metal melt, it will also cause about 6% metal loss, high energy consumption, high labor intensity, and a large amount of CO emissions. 2 and other greenhouse gases, its resource utilization rate and production efficiency are low, and the performance of the produced nickel strip cannot meet the requirements for preparing electronic products

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] 1. Take the electrolytic nickel plate blank and cut it into a strip shape with a width of 100mm;

[0019] 2. One cold rolling with 10% deformation;

[0020] 3. Place the blank obtained in step 2 in a vacuum heat treatment furnace, heat it to 1200°C, keep it for 2 hours, and cool it to below 100°C to release it;

[0021] 4. The blank obtained in step 3 is cold-rolled one by one with a deformation of 10%;

[0022] 5. Place the blank obtained in step 4 in a vacuum heat treatment furnace, heat it to 1200°C, keep it warm for 2 hours, and cool it to below 100°C to release it;

[0023] 6. The blank obtained in step 5 is cold-rolled one by one with a deformation of 10%;

[0024] 7. Put the billet obtained in step 6 into a decomposing ammonia atmosphere protection heat treatment furnace and heat it to 650°C for 3.5 hours, then cool the furnace to below 100°C and release it from the furnace;

[0025] 8. The blank obtained in step 7 is cold-rolled one by one with a deformation ...

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Abstract

The microstructure adjustment and degassing process of the electrolytic nickel plate of the present invention includes multiple cold rolling processes, vacuum heat treatment, atmosphere protection heat treatment and other processes. Electrolytic nickel plate structure adjustment and degassing process, the process method is simple, easy to operate, can effectively ensure the purity of electrolytic nickel sheet, improve the comprehensive mechanical properties and physical properties of electrolytic nickel sheet, make electronics, batteries, electric vacuum, electric light source, etc. The cold-rolled processing of high-quality nickel strip required by the industry becomes possible, which can replace the existing production process of hot-rolled electrolytic nickel sheet, and is suitable for industrial production.

Description

technical field [0001] The invention belongs to the technical field of metal material processing, and relates to the structure adjustment and degassing process of an electrolytic nickel plate. Background technique [0002] Metal nickel strips are widely used in electronic products as conductive and structural materials, which require good electrical conductivity and chemical stability. The quality of conductivity and chemical stability is directly related to the purity of nickel strips, that is, the impurity content in nickel strips It is directly related; in order to obtain a certain thickness of nickel strip, it is also required that the microstructure of nickel is suitable for high-strength rolling processing. Nickel strips are generally produced using electrolytic nickel as a raw material. As a smelting product, the purity of electrolytic nickel itself can reach more than 99.9%. If it is directly processed by cold rolling, its composition will not change because the proc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22F1/10
Inventor 刘威胡许先吴志勇李荣辉陈孝光李宝君
Owner CHANGSHA RES INST OF MINING & METALLURGY
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