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Ultra-thin double-zero aluminum foil and preparation method thereof

A technology of double-zero aluminum foil and double-zero foil, which is applied in the direction of metal rolling, can solve the problems affecting the performance of finished products, and achieve the effect of good performance and good room temperature mechanical properties

Inactive Publication Date: 2017-11-03
YANTAI NANSHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, the content and ratio of Fe and Si will have a direct impact on the microstructure and properties of the AA8079 alloy; improper control of the microstructure and second phase of the aluminum foil blank will also affect subsequent rolling and finished product properties

Method used

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  • Ultra-thin double-zero aluminum foil and preparation method thereof

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Effect test

Embodiment 1

[0022] An ultra-thin double-zero aluminum foil, characterized in that the alloy is composed of the following components by weight percentage: Fe 1.25%; Si 0.13%; Zr 0.03%; Ti 0.036%; more than 0.02%.

[0023] A method for preparing an ultra-thin double-zero aluminum foil, characterized in that the alloy preparation process includes the following processes: batching, smelting, refining, casting, homogenizing treatment, hot rolling, cold rolling, foil rolling, and finished product annealing, and the specific process is:

[0024] 1) Batching: according to the composition and weight percentage of the aluminum alloy, the ingredients are Fe 1.25%; Si 0.13%; Zr 0.03%; Ti 0.036%; the rest is Al;

[0025] 2) Smelting: smelting in a smelting furnace, so that the hydrogen content of the melt is less than or equal to 0.12ml / 100g;

[0026] 3) Refining: put in refining agent for refining after standing, adjust the nitrogen pressure during refining to ensure that the height of the aluminum ...

Embodiment 2

[0036] An ultra-thin double-zero aluminum foil, characterized in that the alloy is composed of the following components by weight percentage: Fe 1.23%; Si 0.09%; Zr 0.025%; Ti 0.04%; more than 0.02%.

[0037] A method for preparing an ultra-thin double-zero aluminum foil, characterized in that the alloy preparation process includes the following processes: batching, smelting, refining, casting, homogenizing treatment, hot rolling, cold rolling, foil rolling, and finished product annealing, and the specific process is:

[0038] 1) Batching: according to the composition and weight percentage of the aluminum alloy, the ingredients are Fe 1.23%; Si 0.09%; Zr 0.025%; Ti 0.04%; the rest is Al;

[0039] 2) Smelting: smelting in a smelting furnace, so that the hydrogen content of the melt is less than or equal to 0.12ml / 100g;

[0040] 3) Refining: put in refining agent for refining after standing, adjust the nitrogen pressure during refining to ensure that the height of the aluminum ...

Embodiment 3

[0050] An ultra-thin double zero aluminum foil, characterized in that the alloy is composed of the following components by weight percentage: Fe 1.18%; Si 0.11%; Zr 0.026%; Ti 0.031%; more than 0.02%.

[0051] A method for preparing an ultra-thin double-zero aluminum foil, characterized in that the alloy preparation process includes the following processes: batching, smelting, refining, casting, homogenizing treatment, hot rolling, cold rolling, foil rolling, and finished product annealing, and the specific process is:

[0052] 1) Batching: according to the composition and weight percentage of the aluminum alloy, the ingredients are: Fe 1.18%; Si 0.11%; Zr 0.026%; Ti 0.031%; the rest is Al;

[0053] 2) Smelting: smelting in a smelting furnace, so that the hydrogen content of the melt is less than or equal to 0.12ml / 100g;

[0054] 3) Refining: put in refining agent for refining after standing, adjust the nitrogen pressure during refining to ensure that the height of the alumin...

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Abstract

The invention discloses an ultra-thin double-zero aluminum foil and a preparation method thereof. The alloy consists of the following components by weight: (0.9-1.5) of Fe; (0.07-0.15) of Si; (0.02-0.06) of Zr; (0.02-0.06) of Ti; and the balance Al. The total content of other impurities is not more than 0.05%. The alloy preparation technology comprises the following processes of burdening, smelting, repeated refining, casting, homogenization treatment, hot rolling, cold rolling, foil rolling and finished product annealing to obtain the ultra-thin double-zero aluminum foil. Compared with the prior art, the average pinhole number of the ultra-thin aluminum foil is less than 350 / m<2>, tensile strength Alphab is more than or equal to 65N / mm<2>, the elongation rate Delta is more than or equal to 0.8%, the aluminum foil has good room temperature mechanical property, and finished product pinhole rate detection can reach A standard.

Description

technical field [0001] The invention relates to an alloy production and preparation method, in particular to an ultra-thin double-zero aluminum foil and a preparation method thereof. Background technique [0002] Double zero aluminum foil is generally prepared by using two series of materials, pure aluminum (AA1235 alloy is a typical representative) and aluminum-iron alloy (AA8079 alloy is a typical representative). The aluminum foil blank has higher mechanical properties, and a higher rolling speed can be used during rolling without breaking the strip, which improves the production efficiency of aluminum foil. Therefore, domestic aluminum foil processing enterprises gradually began to use AA8079 alloy to prepare double zero aluminum foil. However, there are still many problems in the use of 8079 alloy to produce double zero aluminum foil. For example, the content and proportion of Fe and Si will have a direct impact on the structure and properties of the AA8079 alloy; imp...

Claims

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Application Information

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IPC IPC(8): C22C21/00B21B1/40C22F1/04
CPCB21B1/40C22C21/00C22F1/04
Inventor 尹登峰程仁策吕正风祝贞凤余鑫祥
Owner YANTAI NANSHAN UNIV
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