Pole lug copper strip production technology

A production process and technology of copper strip, which is applied in the field of cold rolling heat treatment process of tab copper strip, can solve the problems that the surface finish cannot guarantee the quality of the tab, the conductivity is difficult to improve, and the purity of the material cannot be well guaranteed, etc., to overcome The effect of uneven annealing, consistent heat flow direction and uniform force

Inactive Publication Date: 2018-11-06
ANHUI CHUJIANG TECHCAL NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the level of technology and equipment in China, the purity of the material cannot be wel

Method used

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Embodiment 1

[0040] The invention provides a production process of tab copper strip. Through the process, the purity of copper reaches >99.97%, the electrical conductivity increases from 95% IACS to over 100%, and the surface roughness also reaches 0.15um-0.25um.

[0041] A production process of tab copper strip, comprising the steps of:

[0042] (1) Smelting and drawing casting;

[0043] (2) hot rolling;

[0044] (3) Milling;

[0045] (4) Rough rolling;

[0046] (5) trimming;

[0047] (6) Primary annealing;

[0048] (7) One-time cleaning;

[0049] (8) Intermediate rolling;

[0050] (9) loose roll;

[0051] (10) Secondary annealing;

[0052] (11) Secondary cleaning;

[0053] (12) Finish rolling;

[0054] (13) Annealing and cleaning of air cushion furnace;

[0055] (14) Stretching and straightening;

[0056] (15) Slitting delivery;

[0057] Among them, step (1) smelting and drawing casting: use cathode electrolytic copper as raw material, control the target copper purity and impu...

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Abstract

The invention discloses a pole lug copper strip production technology, and belongs to the technical field of non-ferrous metal copper rolling and heat treatment. The production technology comprises the following steps of (1) smelting draw casting, (2) hot rolling, (3) milling, (4) rough rolling, (5) edge cutting, (6) primary annealing, (7) primary cleaning, (8) intermediate rolling, (9) coil unwinding, (10) secondary annealing, (11) secondary cleaning, (12) finish rolling, (13) air cushion furnace annealing and cleaning, (14) stretch bending straightening and (15) slitting delivery. Through the pole lug copper strip production technology, the electric conduction performance of pole lug copper strips is improved, and the surface smoothness is improved.

Description

technical field [0001] The invention relates to the technical field of rolling and heat treatment of non-ferrous metal copper, and more specifically relates to a cold rolling heat treatment process of tab copper strip. Background technique [0002] At present, there are three directions for the development of the world's new energy battery industry. One is the rapid development of green and environmentally friendly batteries, including lithium-ion batteries, nickel-hydrogen batteries, etc.; the second is the transformation of primary batteries into batteries, which is in line with the sustainable development strategy; Develop in the direction of small, light and thin. Among the commercialized rechargeable batteries, lithium-ion batteries have three major characteristics of the current battery industry development due to their high volume specific energy and mass specific energy, rechargeable and non-polluting, so they have a relatively fast development in most countries in t...

Claims

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Application Information

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IPC IPC(8): B23P15/00
CPCB23P15/00
Inventor 胡勇马子超郭凯孙红刚刘福天
Owner ANHUI CHUJIANG TECHCAL NEW MATERIAL CO LTD
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