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Ultrathin aluminum foil of 0.005-0.0054 mm and preparation method thereof

A technology of ultra-thin aluminum foil and ester value, which is applied in the field of aluminum alloy materials, can solve the problems of difficult production of aluminum foil and large demand for ultra-thin aluminum foil, and achieve optimal pass distribution, strong machinability, and improved plate shape. Effect

Inactive Publication Date: 2020-04-21
山东德利铝业科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Under normal circumstances, affected by factors such as pinholes, plate shape, and slag inclusions, it is difficult to produce products with a thickness of less than 0.006mm in existing aluminum foils, and ultra-thin aluminum foils are in great demand for electronic components, food packaging, etc. At present Few companies at home and abroad can produce this product stably

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A preparation method of 0.005mm ultra-thin aluminum foil is obtained by rolling a blank with a thickness of 0.22mm, a tensile strength of 145MPa and an elongation of 2.5% as a raw material through four passes of rolling.

[0028] The billet is obtained by refining, filtering, cooling, and casting of the molten liquid. The molten liquid is filtered with a 50ppi filter combined with a 60ppi filter, which can effectively absorb and intercept metal and non-metallic impurities in the molten liquid, ensuring the filtering effect and ensuring Hydrogen content≤0.10mL / (100g); Utilize cast-rolling machine to obtain cast-rolled plate after casting and rolling for many times, the thickness difference of the same plate of cast-rolled plate≤0.05mm, wherein the weight content of Fe is controlled at 0.7%, and the weight content of Si is controlled at 0.25 %.

[0029] The distribution of passes is: the first pass is pressed from 0.22mm to 0.096mm, the second pass is pressed from 0.096mm...

Embodiment 2

[0043] A preparation method of 0.0054mm ultra-thin aluminum foil is obtained by rolling a blank with a thickness of 0.22mm, a tensile strength of 145MPa and an elongation of 2.5% as a raw material through four passes of rolling.

[0044] The billet is obtained by refining, filtering, cooling, and casting of the molten liquid. The molten liquid is filtered with a 50ppi filter combined with a 60ppi filter, which can effectively absorb and intercept metal and non-metallic impurities in the molten liquid, ensuring the filtering effect and ensuring Hydrogen content≤0.10mL / (100g); Utilize cast-rolling machine to obtain cast-rolled plate after casting and rolling for many times, the thickness difference of the same plate of cast-rolled plate≤0.05mm, wherein the weight content of Fe is controlled at 0.7%, and the weight content of Si is controlled at 0.25 %.

[0045] The distribution of passes is: the first pass is pressed from 0.24mm to 0.096mm, the second pass is pressed from 0.096m...

Embodiment 3

[0059] A preparation method of 0.0051mm ultra-thin aluminum foil is obtained by rolling a blank with a thickness of 0.24mm, a tensile strength of 135MPa and an elongation of 2.5% as a raw material through four passes of rolling.

[0060] The billet is obtained by refining, filtering, cooling, and casting of the molten liquid. The molten liquid is filtered with a 50ppi filter combined with a 60ppi filter, which can effectively absorb and intercept metal and non-metallic impurities in the molten liquid, ensuring the filtering effect and ensuring Hydrogen content≤0.10mL / (100g); Utilize cast-rolling machine to obtain cast-rolled plate after multiple cast-rolling, the thickness difference of the same plate of cast-rolled plate≤0.05mm, wherein the weight content of Fe is controlled at 0.8%, and the weight content of Si is controlled at 0.2 %.

[0061] The distribution of passes is: the first pass is pressed from 0.24mm to 0.096mm, the second pass is pressed from 0.096mm to 0.035mm, ...

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Abstract

The invention discloses ultrathin aluminum foil of 0.005-0.0054 mm and a preparation method thereof. The ultrathin aluminum foil is characterized in that the foil is obtained by adopting a blank withthe thickness ranging from 0.22 mm to 0.26 mm, strength of extension ranging from 125 MPa to 145 Mpa and ductility being 2.5% as a raw material and carrying out four passes of rolling. The rolling passes, oil product management, the roller process and other aspects are improved, it is guaranteed that the plate shape of the ultrathin aluminum foil of 0.005-0.0054 mm is normal and needle holes are stable, and therefore the aims of efficiency increase and quality stabilization are achieved. The plate shape of an ultrathin aluminum alloy can be improved easily, and the function of needle holes canbe reduced; the foil rolling process is adopted in the rolling process of the aluminum foil, pass distribution is reasonable, the aluminum foil plate shape and surface roughness are guaranteed, and the influence brought by the needle hole plate shape and needle holes is reduced; and the rolling oil control process is adopted, the proportion of additives of various passes is controlled, generationof alloy aluminum powder is reduced, and subsequent machinability of the ultrathin aluminum foil is higher. Pass distribution is optimized, machinability of materials is effectively improved, the plate shape is optimized, and product production efficiency is improved.

Description

technical field [0001] The invention relates to a 0.005-0.0054mm ultra-thin aluminum foil and a preparation method thereof. The invention belongs to the technical field of aluminum alloy materials. Background technique [0002] Under normal circumstances, affected by factors such as pinholes, plate shape, and slag inclusions, it is difficult to produce products with a thickness below 0.006mm in aluminum foil, and ultra-thin aluminum foil is in great demand in electronic components, food packaging, etc. At present Few companies at home and abroad can produce this product stably. Contents of the invention [0003] The object of the present invention is to provide a 0.005-0.0054mm ultra-thin aluminum foil and a preparation method thereof in order to overcome the above-mentioned deficiencies in the prior art. [0004] To achieve the above object, the present invention adopts the following technical solutions: [0005] A preparation method of 0.005-0.0054mm ultra-thin alumin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22F1/04C21D9/46C22C21/00C22C1/02B21B1/46
CPCB21B1/46C21D9/46C22C1/026C22C21/00C22F1/04
Inventor 高森李贻成胡茂明郭峰阴建香王猛史久华
Owner 山东德利铝业科技有限公司