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A kind of aluminum alloy and method for manufacturing double zero foil

A manufacturing method and aluminum alloy technology, applied in metal rolling, manufacturing tools, metal rolling, etc., can solve the problems of difficult control of foil blank grain size, obvious color difference, rough foil surface, etc., to achieve easy dissolution or precipitation, Increased number and size, enhanced effect of hindering action

Active Publication Date: 2016-01-20
SNTO TECH GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If 8079 casting and rolling stock is used to produce double-zero foil, the grain size of the foil billet is difficult to control, and it is prone to coarse grains on the surface layer, resulting in obvious stripes on the surface of the finished double-zero foil, rough foil surface, obvious color difference, and uneven gloss.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Composition and weight percentage of aluminum alloy:

[0026] Si: 0.09%, Fe: 1.03%, Zn: 0.04%, Mg: 0.001%, Mn: 0.005%, Cu: 0.003%, Ti: 0.03%, Cr: 0.006%, and Al is the balance.

[0027] The method for manufacturing double zero foil from the aluminum alloy of embodiment 1, the steps are as follows:

[0028] 1., smelting, melting is carried out by the aluminum alloy of composition ratio described in embodiment 1;

[0029] ②, casting and rolling, the aluminum melt is cast-rolled into a cast-rolled plate with a thickness of 7.0 mm by a twin-roller continuous casting and rolling method;

[0030] 3. cold rolling, the cast-rolled plate of step 2. gained is rolled to 2.5mm thick;

[0031] ④, intermediate annealing, the aluminum plate obtained in step ③ is annealed at 530°C, and the annealing time is 25h;

[0032] 5. Secondary cold rolling, continue rolling the aluminum sheet obtained in step 4. to a thickness of 0.3 mm;

[0033] ⑥, secondary intermediate annealing, the alum...

Embodiment 2

[0039] Composition and weight percentage of aluminum alloy:

[0040] Si: 0.093%, Fe: 0.75%, Zn: 0.09%, Mg: 0.004%, Mn: 0.002%, Cu: 0.001%, Ti: 0.035%, Cr: 0.008%, and Al is the balance.

[0041] The method for manufacturing double zero foil from the aluminum alloy of embodiment 2, the steps are as follows:

[0042] 1., smelting, melting is carried out by the aluminum alloy of composition ratio described in embodiment 2;

[0043] ②, casting and rolling, the aluminum melt is cast and rolled into a cast-rolled plate with a thickness of 7.3 mm by a twin-roller continuous casting and rolling method;

[0044] 3. cold rolling, the cast-rolled plate of step 2. gained is rolled to 2.8mm thick;

[0045] ④, intermediate annealing, the aluminum plate obtained in step ③ is annealed at 520°C, and the annealing time is 23h;

[0046] 5. Secondary cold rolling, continue rolling the aluminum sheet obtained in step 4. to 0.45mm thick;

[0047] ⑥, secondary intermediate annealing, the aluminu...

Embodiment 3

[0053] Composition and weight percentage of aluminum alloy:

[0054] Si: 0.096%, Fe: 0.8%, Zn: 0.05%, Mg: 0.005%, Mn: 0.001%, Cu: 0.004%, Ti: 0.04%, Cr: 0.002%, and Al is the balance.

[0055] The method for manufacturing double zero foil from the aluminum alloy of embodiment 3, the steps are as follows:

[0056] 1., smelting, melting is carried out by the aluminum alloy of composition ratio described in embodiment 3;

[0057] ②, casting and rolling, the aluminum melt is cast and rolled into a cast-rolled plate with a thickness of 6.4mm by using a twin-roller continuous casting and rolling method;

[0058] 3., cold rolling, the cast-rolled plate of step 2. gained is rolled to 3.5mm thick;

[0059] ④, intermediate annealing, the aluminum plate obtained in step ③ is annealed at 500°C, and the annealing time is 18h;

[0060] 5. Secondary cold rolling, the aluminum plate obtained in step 4. is continued to be rolled to a thickness of 0.7mm;

[0061] ⑥, secondary intermediate a...

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Abstract

The invention discloses an aluminum alloy and a method for manufacturing a double-zero foil by using the same. The aluminum alloy comprises the following components in percentage by weight: 0.09 to 0.15 percent of Si, 0.75 to 1.05 percent of Fe, 0.03 to 0.1 percent of Zn, 0.02 to 0.03 percent of Ti, less than or equal to 0.01 percent of Mg, less than or equal to 0.01 percent of Cu, less than or equal to 0.01 percent of Mn, less than or equal to 0.01 percent of Cr, and the balance of Al. By adding the grain thinning element Zn, the grains of the aluminum alloy provided by the invention are fine and uniform, and the aluminum alloy has exquisite surface quality and high tensile strength; and in a produced double-zero foil finished product, the pinhole rate is less than 200 holes per square meter, the tensile strength is 85 to 100MPa, and the elongation is more than 2.5 percent.

Description

technical field [0001] The invention relates to an alloy material, in particular to an aluminum alloy and a method for manufacturing the double zero foil. Background technique [0002] Aluminum foil meets various needs of modern production in a wide range of fields with its unique properties. With the development of economy and technology, the requirements for the quality of aluminum foil are increasing day by day. It is hoped that the thickness of aluminum foil will be thinner, with fewer pinholes, and higher mechanical properties and surface quality. [0003] At present, most double-zero aluminum foils use 1235 alloy or 8079 alloy. Due to the low total element content of 1235 alloy, the mechanical properties of the finished double-zero foil are low, which cannot meet the production requirements of modern high-speed compound machines; while 8079 double-zero foil Due to its high mechanical properties, it meets the needs of high-speed composite machines. At the same time, t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C21/00B21B1/40B21B37/16
Inventor 蒙春标袁媛
Owner SNTO TECH GRP