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Preparation method of high purity nickel wire

A nickel wire, high-purity technology, applied in the field of metal material processing, can solve problems such as difficult to meet the use requirements, affect the ductility of nickel wire, reduce material purity, etc., achieve low production cost, less impurities, and improve the effect of material purity

Active Publication Date: 2011-11-23
SOUTH CHINA AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1) Due to the influence of production cost and smelting conditions, the processed pure nickel usually contains a certain amount of impurities. This part of impurities enters the molten steel from the refractory materials or other impurities peeled off from the inner wall of the steelmaking furnace body, steel ingot mold, etc. Non-metallic inclusions remain in the matrix before the liquid steel solidifies, which not only floats up in time, but also reduces the purity of the material. Requirements for the use of high-purity nickel wire (nickel content greater than 99.9%)
[0005] 2) In the process of smelting and forging, more than 5% metal loss will be caused by the adhesion and heating loss of the metal melt

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Embodiment 1 of the present invention comprises following steps:

[0024] 1. Cut the large-sized electrolytic nickel plate into 150 mm wide nickel plate, put it into the heating furnace, and prepare for hot rolling;

[0025] 2. The heating temperature for hot rolling of nickel plate is 900°C, the holding time is 4 hours, and the rolling deformation is 60%; it is hot rolled into a narrow nickel plate with a thickness of 6 mm;

[0026] 3. Use the argon arc welding process to weld the hot-rolled short nickel plate into a long nickel strip, and use the ultrasonic flaw detection method to detect the weld seam without defects, and harvest it into coils;

[0027] 4. The nickel strip coil is cold-rolled to a thickness of 3.0 mm with a cold rolling mill, and the deformation is 50%, and annealing is carried out; the annealing is heat-treated in a protective atmosphere continuous annealing furnace, the heating temperature is 850 ° C, and the annealing speed is 1.0 m / min;

[0028...

Embodiment 2

[0031] Embodiment 2 of the present invention comprises the following steps:

[0032] 1. Cut the large-scale electrolytic nickel plate into 120 mm wide nickel plate, put it into the heating furnace, and prepare for hot rolling;

[0033] 2. The heating temperature for hot rolling of nickel plate is 1040°C, the holding time is 1 hour, and the rolling deformation is 90%; it is hot rolled into a narrow nickel plate with a thickness of 3.5 mm;

[0034] 3. Use the argon arc welding process to weld the hot-rolled short nickel plate into a long nickel strip, and use the ultrasonic flaw detection method to detect the weld seam without defects, and harvest it into coils;

[0035] 4. The nickel strip coil is cold-rolled to 2.0 mm with a cold rolling mill, and the deformation is 30%, and annealing is carried out; the annealing is heat-treated in a protective atmosphere continuous annealing furnace, the heating temperature is 950 ° C, and the annealing speed is 1.5 meters / Minute;

[0036...

Embodiment 3

[0039] Embodiment 3 of the present invention comprises following steps:

[0040] 1. Cut the large-scale electrolytic nickel plate into 170 mm wide nickel plate, put it into the heating furnace, and prepare for hot rolling;

[0041] 2. The heating temperature of the nickel plate is 950°C, the holding time is 3 hours, and the rolling deformation is 78%; it is hot-rolled into a narrow nickel plate with a thickness of 3.3 mm;

[0042] 3. Use the argon arc welding process to weld the hot-rolled short nickel plate into a long nickel strip, and use the ultrasonic flaw detection method to detect the weld seam without defects, and harvest it into coils;

[0043] 4. The nickel strip coil is cold-rolled to a thickness of 3.0 mm with a cold rolling mill, and the deformation is 10%, and annealing is carried out; the annealing is heat-treated in a protective atmosphere continuous annealing furnace, the heating temperature is 800 ° C, and the annealing speed is 0.8 m / dm;

[0044] 5. After ...

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Abstract

The invention provides a preparation method of a high purity nickel wire. The method comprises the processes of: nickel plate electrolyzing; separating by cutting; heating and rolling; welding; cold rolling; annealing; strip separating; cold drawing; annealing, such that semi-finished wire materials are obtained; annealing; and drawing, such that finished nickel wires are obtained. The method provided by the invention has advantages of short production period, high efficiency, low cost, and low consumption. The method satisfies a high purity nickel wire usage requirement from electronic industries. The method can be used for replacing a traditional nickel wire production technology employing a smelting method.

Description

technical field [0001] The invention relates to the technical field of metal material processing, in particular to a method for preparing high-purity nickel wire, which is suitable for producing high-purity nickel wire. Background technique [0002] Pure nickel wire has high chemical stability, good oxidation resistance and corrosion resistance, and has been widely used in the electronic and electrical industries. At present, there are many kinds of pure nickel wire production processes at home and abroad, but the main production processes are roughly the same, which are briefly described as follows: electrolytic nickel plate—shearing—induction furnace melting—casting ingot—steel ingot peeling—heating - forging - forging billet grinding - heating - rolling - heat treatment - pickling - cleaning - drawing - semi-finished wire - annealing - drawing - finished nickel wire. [0003] This pure nickel wire production process of the prior art always has the following problems: ...

Claims

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Application Information

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IPC IPC(8): C22F1/10B21C1/00
Inventor 刘志坚陈远星何坤宏黄伟嘉黄成陈泰勋
Owner SOUTH CHINA AGRI UNIV
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