A processing method of an aluminum alloy strip that uses an end surface wrapped aluminum foil to suppress the color difference of the side surface

A technology of aluminum alloy strips and processing methods, which is applied in the field of processing aluminum alloy strips, can solve problems such as color difference of aluminum alloy strips, and achieve the effects of little impact on production efficiency, simple operation, and low difficulty in production control

Active Publication Date: 2021-08-13
NORTHEAST LIGHT ALLOY CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem of chromatic aberration on the side surface of the aluminum alloy strip obtained by the existing preparation process, the present invention proposes a processing method of an aluminum alloy strip that uses an end surface wrapping aluminum foil to suppress the chromatic aberration of the side surface

Method used

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  • A processing method of an aluminum alloy strip that uses an end surface wrapped aluminum foil to suppress the color difference of the side surface

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Effect test

specific Embodiment approach 1

[0025] Specific Embodiment 1: In this embodiment, the processing method of the aluminum alloy strip that wraps the aluminum foil on the end surface to suppress the color difference on the side surface is carried out according to the following steps:

[0026] 1. Cold rolling:

[0027] Putting the aluminum alloy billet in a cold rolling mill for rolling, and standing still for 20-28 hours after rolling to obtain a semi-finished strip coil;

[0028] 2. Annealing:

[0029] The two end surfaces of the semi-finished strip coil obtained in step 1 are respectively wrapped with aluminum foil and bundled, and then transferred to an annealing furnace for annealing;

[0030] Three, secondary cold rolling:

[0031] Step 2: After annealing, remove the aluminum foils on the two end surfaces of the semi-finished strip coil, and then transfer the semi-finished strip coil to a cold rolling mill for secondary cold rolling to the thickness of the finished product to obtain the finished strip; ...

specific Embodiment approach 2

[0038] Embodiment 2: This embodiment is different from Embodiment 1 in that: the processing rate of the rolling described in step 1 is 70%-98%. Other steps and parameters are the same as those in the first embodiment.

specific Embodiment approach 3

[0039] Embodiment 3: This embodiment differs from Embodiment 1 or Embodiment 2 in that: the thickness of the semi-finished strip in the semi-finished strip roll in step 1 is 0.19-2mm. Other steps and parameters are the same as those in Embodiment 1 or 2.

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Abstract

The invention relates to a processing method of an aluminum alloy strip which adopts the end face to wrap the aluminum foil to restrain the surface color difference of the side edge, and the invention relates to a processing method of the aluminum alloy strip. The invention aims to solve the problem of chromatic aberration on the side surface of the aluminum alloy strip obtained by the existing preparation process. Place the aluminum alloy billet in a cold rolling mill for rolling, and let it stand for 20 to 28 hours after rolling to obtain a semi-finished strip coil; wrap the two end faces of the semi-finished strip coil with aluminum foil respectively and bundle them, and then transfer to the return process. Annealing is carried out in the furnace; after annealing, the aluminum foils on the two end faces of the semi-finished strip coil are removed, and then the semi-finished strip coil is transferred to a cold rolling mill for secondary cold rolling to the thickness of the finished product to obtain the finished strip; the finished strip is drawn The bending straightener is straightened, and the final cut is completed. The invention can suppress the burning of the rolling oil and avoid the generation of chromatic aberration. The invention is suitable for the processing of aluminum alloy strips.

Description

technical field [0001] The invention relates to a processing method of an aluminum alloy strip. Background technique [0002] Aluminum alloy strips are widely used in the preparation of heat dissipation fins, air separation units, battery shells, aluminum matrix composites, etc. In recent years, the market's demand for aluminum alloy strips has not been limited to the pursuit of products with stable performance, and the appearance quality of products has received higher attention. In the preparation process of the existing aluminum alloy strip, the metal rolling oil used in the process lubrication of the cold rolling unit is very likely to remain on the side surface of the aluminum alloy strip, and the residual metal rolling in the annealing process after rolling The oil burns, and the color difference after burning is obvious, and then the surface color difference is caused on the side surface of the aluminum alloy strip, which seriously affects the appearance quality afte...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22F1/04C22F1/02
Inventor 韩冰徐宏大刘桂云谭树栋邱大伟张雪濛王连友万旭吴沂哲赵国奇车德财
Owner NORTHEAST LIGHT ALLOY CO LTD
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