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Slitting control method for producing battery aluminum foil

A control method, aluminum foil technology, applied in metal processing, etc., can solve problems such as poor coiling quality, unreasonable configuration of process parameters, surface pitting, etc., to achieve the effect of eliminating end-face staggered layers, improving cutting efficiency, and avoiding burrs

Inactive Publication Date: 2018-08-14
YUNNAN HAOXIN ALUMINUM FOIL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the continuous development of aluminum foil for new energy power batteries, the thickness of aluminum foil is further reduced, the performance is further improved, and the requirements for surface quality and section quality are further improved. However, in the actual production process of battery aluminum foil, often due to unreasonable configuration of process parameters The method is not good, resulting in poor shape, surface pits, poor trimming quality, poor coiling quality and other quality problems on the surface of the battery aluminum foil, which seriously affects the customer's subsequent production and use and economic benefits

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Adopt the slitting control method of the present invention to produce 1 ton of 10 μm battery aluminum foil, and the slitting process parameters are set as follows:

[0020] Control the slitting and winding tension at 50N / mm 2 Between, the tension gradient is controlled at 80%, the side clearance of the ceramic rectangular blade is controlled at 0.1mm, and the cutting angle is 40°; in the first stage, the cutting speed reaches 150m / min, in the second stage, the cutting speed reaches 450m / min, In the third stage, the cutting speed reaches 500mm / min. The pressure curve of the rubber roller is controlled at 30%, and the convexity of the rubber roller is controlled at 0.15mm.

[0021] After the slitting is completed, the entire slitting belt is cut 0 times, and the daily output of slitting is calculated to be as high as 35 tons. The slitting products have no burrs, flanging and hemp pits, and the end face of the aluminum foil has no cross-layers, arrow-shaped patterns and u...

Embodiment 2

[0023] Adopt the slitting control method of the present invention to produce 1 ton of 9 μm battery aluminum foil, and the slitting process parameters are set as follows:

[0024] Control the slitting and winding tension at 60N / mm 2 Between them, the tension gradient is controlled at 90%, the side clearance of the ceramic rectangular blade is controlled at 0.2mm, and the cutting angle is 40°. In the first stage, the cutting speed reaches 200m / min; in the second stage, the cutting speed reaches 400m / min; in the third stage, the cutting speed reaches 650mm / min. The pressure curve of the rubber roller is controlled at 50%, and the convexity of the rubber roller is controlled at 0.2mm.

[0025] After the slitting is completed, the entire slitting belt is cut 0 times, and the daily output of slitting is calculated to be as high as 33 tons. The slitting products have no burrs, flanging and pits, and the end face of the aluminum foil has no cross-layers, arrow-shaped patterns and unw...

Embodiment 3

[0027] Adopt the slitting control method of the present invention to produce 1 ton of 10 μm battery aluminum foil, and the slitting process parameters are set as follows:

[0028] Control the slitting and winding tension at 50N / mm 2 Between, the tension gradient is controlled at 70%, the side clearance of the ceramic rectangular blade is controlled at 0.1mm, and the cutting angle is 40°; in the first stage, the cutting speed reaches 100m / min, in the second stage, the cutting speed reaches 300m / min, In the third stage, the cutting speed reaches 450mm / min. The pressure curve of the rubber roller is controlled at 30%, and the convexity of the rubber roller is controlled at 0.15mm.

[0029] After the slitting is completed, the entire slitting belt is cut 0 times, and the daily output of slitting is calculated to be as high as 35 tons. The slitting products have no burrs, flanging and hemp pits, and the end face of the aluminum foil has no cross-layers, arrow-shaped patterns and u...

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Abstract

The invention discloses a slitting control method for producing a battery aluminum foil, and aims to provide the battery aluminum foil slitting control method capable of improving slitting quality andefficiency. The method comprises the following steps that (1), tension is controlled, wherein the slitting winding tension for the battery aluminum foil is controlled at 50N-70 / mm<2>, and the tensiongradient is controlled to be 70-90%; (2), a ceramic rectangular blade is controlled, wherein the side gap of the ceramic rectangular blade is controlled to be 0.1-0.4 mm, and the cutting angle is 40degrees; (3), the slitting speed is controlled, wherein slitting equipment adopts a soft start staged speed increasing mode, in the first stage, the slitting speed is up to 100-150 m / min, in the second stage, the slitting speed is up to 300-450 m / min, and in the third stage, the slitting speed is up to 450-650 mm / min; and (4), pressure of a rubber roller is controlled, wherein the pressure curve of the rubber roller is controlled to be 30%-50%, and the convexity of the rubber roller is controlled to be 0.15-0.3 mm. The method is suitable for high-quality slitting of the 9-12 micron battery aluminum foil.

Description

technical field [0001] The invention relates to the field of battery technology, in particular to a cutting control method for producing battery aluminum foil. Background technique [0002] With the continuous development of aluminum foil for new energy power batteries, the thickness of aluminum foil is further reduced, the performance is further improved, and the requirements for surface quality and section quality are further improved. However, in the actual production process of battery aluminum foil, often due to unreasonable process parameter configuration, process Poor methods lead to quality problems such as poor plate shape, surface pits, poor trimming quality, and poor coiling quality on the surface of the battery aluminum foil, which seriously affect the customer's subsequent production and use and economic benefits. Therefore, the present invention will provide a 9-12 μm thick aluminum foil cutting control method for new energy power batteries to effectively solve...

Claims

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Application Information

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IPC IPC(8): B26D5/00
CPCB26D5/00
Inventor 李永平陈德斌康吉昌董建武田慧何子平王维绪施念文
Owner YUNNAN HAOXIN ALUMINUM FOIL
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