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Low-pinhole, super-wide and ultra-thin aluminum foil preparation method

An ultra-thin aluminum foil and pinhole technology, which is applied in metal rolling, contour control, etc., can solve the problems of excessive pinholes in aluminum foil and difficulty in controlling the shape of aluminum foil

Active Publication Date: 2020-11-20
陇西西北铝铝箔有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a method for preparing ultra-wide ultra-thin aluminum foil with low pinholes in order to solve the technical problems of excessive pinholes in the aluminum foil when the thickness of the ultra-wide aluminum foil is reduced to 0.0053 mm and the difficult control of the shape of the aluminum foil

Method used

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  • Low-pinhole, super-wide and ultra-thin aluminum foil preparation method
  • Low-pinhole, super-wide and ultra-thin aluminum foil preparation method

Examples

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Effect test

Embodiment 1

[0027] A preparation method of low-pinhole ultra-wide ultra-thin aluminum foil, the method comprising the following steps:

[0028] Step 1: Check the water, air, pump, point, valve and carbon dioxide fire extinguishing system of the rolling mill to ensure that there is no error before starting up.

[0029] Step 2: Lift the aluminum foil blank to the uncoiling saddle of the rough rolling mill, transport the aluminum foil blank to the cone head of the uncoiler with a feeding trolley, clamp the aluminum foil blank, open the roll gap and manually pass the blank through the roll gap of the rolling mill to the coil Wrap it on the machine sleeve.

[0030] Step 3: Input rough rolling control parameters on the rolling mill parameter panel: pass thickness: 0.1mm, rolling force: 1241KN, rolling speed: 500m / min, uncoiling tension: 40Mpa, coiling tension: 40Mpa, target plate Type: 14I, Bending Roll: -10~10%, VC: 0~30%, Oil Temperature: 40°C, Oil Pressure: 6bar, Flow Rate: 60%, Roll Roughn...

Embodiment 2

[0042] The difference between embodiment 2 and embodiment 1 is that the process parameters of step 12 and step 13 are different, specifically: step 12: slitting the rolled aluminum foil to the slitting machine, the specific production process of slitting is: slitting speed The control is 400m / min; the upper and lower coiling tension is controlled at 45MPa, and the tension gradient is 20%; the upper and lower pressure roller pressure is 1.3N / m, the upper and lower contact roller pressure is 2.0N / m, and the upper and lower coiling pressure gradient is 100%.

[0043] Step 13: Carry out finished product annealing to the finished aluminum foil. The finished product annealing process is as follows: in the heating stage, the heating rate is 2°C / hour; in the holding stage, the holding temperature is 180°C, and the holding time is 50 hours; Stage, cooling rate is 0.5 ℃ / hour; Pack after annealing finishes.

Embodiment 3

[0045] The difference between embodiment 3 and embodiment 1 is that the process parameters of step 12 and step 13 are different, specifically: step 12: slitting the rolled aluminum foil to the slitting machine, the specific production process of slitting is: slitting speed The control is 500m / min; the upper and lower coiling tension is controlled at 45MPa, and the tension gradient is 20%; the upper and lower pressure roller pressure is 1.3N / m, the upper and lower contact roller pressure is 2.0N / m, and the upper and lower coiling pressure gradient is 100%.

[0046] Step 13: Anneal the finished aluminum foil. The annealing process for the finished product is as follows: in the heating stage, the heating rate is 5°C / hour; in the holding stage, the holding temperature is 190°C, and the holding time is 30 hours; stage, the cooling rate is 4°C / hour; pack after annealing.

[0047] Comparative test 1

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Abstract

The invention discloses a low-pinhole, super-wide and ultra-thin aluminum foil preparation method. The low-pinhole, super-wide and ultra-thin aluminum foil preparation method mainly comprises the steps of rough rolling (the first / second gate), intermediate rolling (the third gate), crimping, intermediate low-temperature annealing, finish rolling, slitting, annealing and packaging. On the one hand,the final process effectively solves the problem of pinholes exceed standard of aluminum foils when the thicknesses of the super-wide aluminum foils are reduced to 0.0053mm, and on the other hand, the technical problem that the aluminum foils wrinkle due to the fact that the aluminum foils are seriously inconsistent in tightness in the width direction with the widths of the aluminum foils are continuously increased and the thicknesses of the aluminum foils are continuously reduced, the plate type of the aluminum foils is not easy to control, and the aluminum foils are inconsistent in tightness in the width direction is solved. The mass production of the super-wide and ultra-thin aluminum foils is realized, according to the produced super-wide and ultra-thin aluminum foils, compared with existing super-wide and ultra-thin aluminum foils, the pinholes are less than or equal to 800 per / m<2>, the tensile strength performance is between 75 MPa and 90 MPa, and swabbing is A. The produced maximum area aluminum foil specification can reach 0.0053*1880mm, the wider and thinner aluminum foils can effectively reduce the manufacturing cost, and meanwhile, the procurement cost is further reduced when customers use the aluminum foils.

Description

technical field [0001] The invention belongs to the technical field of aluminum foil production, and in particular relates to a method for preparing low-pinhole ultra-wide and ultra-thin aluminum foil. Background technique [0002] The special physical properties of aluminum foil, as well as a series of characteristics such as light weight, airtightness and good cladding, make it widely used in radiators, packaging, electrical and construction fields, and become an indispensable product for economic development and people's daily life . In recent years, with the advancement of technology and equipment in my country's aluminum processing industry, the scale of aluminum foil processing enterprises has expanded, production costs have been reduced, and product quality and grades have been improved. The application fields of aluminum foil have continued to expand, and China has become the second largest consumer of aluminum foil. [0003] Low pinhole ultra-wide ultra-thin alumin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B1/40B21B3/00B21B37/28
CPCB21B1/40B21B3/00B21B37/28B21B2003/001
Inventor 梁健贺晓刘居丰刘鹏举步小飞齐自恒刘晓霞薛元太吴玉龙张鸿彬崔亮
Owner 陇西西北铝铝箔有限公司
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