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A kind of short process rolling method of nickel strip

A short-process, nickel-strip technology, applied in metal rolling, metal rolling, tool manufacturing, etc., can solve problems such as low purity of nickel strips, complex process links, long nickel strip cycle, etc., to reduce chemical treatment links, The effect of simplifying the process flow and reducing the production cycle

Active Publication Date: 2021-06-18
LANZHOU UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a short-process rolling method for nickel strips, aiming to solve the problems of long production cycle, high energy consumption, complicated process links and low purity of nickel strips in traditional nickel strip production

Method used

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  • A kind of short process rolling method of nickel strip
  • A kind of short process rolling method of nickel strip

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] (1) Slitting an electrodeposited nickel plate with a thickness of 10mm and a purity greater than 99.9% into an electrodeposited nickel plate with a width of 20mm, and polishing the surface of the electrodeposited nickel plate to smooth;

[0025] (2) At room temperature, use a two-roller roughing mill at a rolling speed of 10m / min to roll the high-purity electrodeposited nickel plate with a reduction rate of 8% after the surface is polished to a smooth surface, to obtain a thickness of about 1.2mm Pre-rolled nickel strip;

[0026] (3) at room temperature, use the four-roll finishing mill to carry out multi-pass reciprocating rolling of the preliminary rolled nickel strip at a rolling speed of 5m / s, and the single pressing amount in the four-roll rolling process is 30%, to obtain a thickness 0.4mm nickel strip.

Embodiment 2

[0028] (1) Slitting the electrodeposited nickel plate with a thickness of 10 mm and a purity greater than 99.9% into electrodeposited nickel plates with a width of 20 mm, and polishing the surface of the electrodeposited nickel plate to smooth;

[0029] (2) At room temperature, use a two-roller roughing mill at a rolling speed of 10m / min to roll the high-purity electrodeposited nickel plate with a reduction rate of 10% after the surface is polished to a smooth surface, to obtain a rough plate with a thickness of about 1mm. Rolled nickel strip;

[0030] (3) Under room temperature, use the four-roll finish rolling mill to carry out multi-pass reciprocating rolling of the preliminary rolled nickel strip at a rolling speed of 2m / s, and the single pressing amount in the four-roll rolling process is 20%, to obtain a thickness 0.2mm nickel strip.

Embodiment 3

[0032] (1) Slitting the electrodeposited nickel plate with a thickness of 10 mm and a purity greater than 99.9% into electrodeposited nickel plates with a width of 20 mm, and polishing the surface of the electrodeposited nickel plate to smooth;

[0033] (2) At room temperature, use a two-roller roughing mill at a rolling speed of 10m / min to roll the high-purity electrodeposited nickel plate after the surface is polished to a smooth surface at a reduction rate of 5%, to obtain a preliminary rolling with a thickness of 1mm Nickel belt;

[0034] (3) at room temperature, use the four-roll finishing mill to carry out multi-pass reciprocating rolling of the preliminary rolled nickel strip at a rolling speed of 3m / s, and the single pressing amount in the four-roll rolling process is 25%, to obtain a thickness 0.5mm nickel strip.

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Abstract

The invention discloses a short-flow rolling method of a nickel strip, which comprises the following steps: (1) at room temperature, using a two-roller roughing mill at a fixed rolling speed to polish the surface to smooth high-purity electrodeposited The nickel plate is rolled with a reduction ratio of 5 to 10%, to obtain a rough nickel strip with a thickness of about 1mm; (2) at room temperature, use a four-roll finishing mill to process the rough nickel strip under a fixed rolling speed Multi-pass reciprocating rolling, the single pressing amount in the four-roll rolling process is 20-30%, and a nickel strip with a thickness of 0.2-0.5mm is obtained. The method of the present invention realizes the direct room temperature rolling of the electrodeposited nickel plate, greatly improves the production efficiency, reduces equipment investment, labor cost, energy consumption and pollution, shortens the production cycle, and the nickel strip prepared by the method can reach the industry standard standard.

Description

technical field [0001] The invention belongs to the technical field of nonferrous metal material processing, and in particular relates to a short-flow rolling method of a nickel strip. Background technique [0002] With the rise of new energy vehicles, high-purity nickel has good electrical conductivity, excellent corrosion resistance, excellent strength and plasticity. Nickel strips and nickel foils are mainly used as current collectors, current guides, fixed battery packs or Components (such as connecting pieces, lugs, lead-out pieces, and cut-off pieces in rechargeable battery packs) have been widely and widely used in industries such as power batteries. [0003] The traditional production process of nickel strip includes steps such as slitting, vacuum melting, hot rolling, pickling, cold rolling, and annealing. The smelting step in this process inevitably brings in impurities, which greatly reduces the purity of nickel and consumes a lot of raw materials, especially the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21B1/22B21B15/00
CPCB21B1/22B21B15/00
Inventor 张涵夏天东乔及森赵文军杨浩
Owner LANZHOU UNIVERSITY OF TECHNOLOGY
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