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6061 aluminum alloy for 3C product appearance piece and processing method of 6061 aluminum alloy

A processing method and technology of aluminum alloy, applied in the direction of electrolytic coatings, surface reaction electrolytic coatings, coatings, etc., can solve the problems of poor covering effect, affecting the covering effect of "material grain", etc., and achieve good anodizing effect and market application. promising effect

Active Publication Date: 2017-06-20
苏州中色研达金属技术有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The sand size of the sand blasting greatly affects the covering effect on the "material grain", for example, the smaller the sand grain is, the worse the covering effect on the "material grain" is.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The composition of 6061 aluminum alloy is calculated by mass percentage: Mg 1.0 wt%, Si 0.6 wt%, Cu 0.25 wt%, Mn0.04 wt%, Cr 0.05 wt%, Fe 0.08 wt%, Ti 0.02 wt%, the balance is Al .

[0018] Homogenizing heat treatment for alloy cast rods: from room temperature to 400°C at a rate of 40°C / h, heat preservation for 10 hours, then at a rate of 40°C / h to 560°C, heat preservation for 18 hours; followed by hot rolling, Cold rolling, and solution treatment at 540°C for 25 minutes, artificial aging (175°C for 10 hours). Materials In the anodic oxidation sandblasting process, No. 203 zircon sand is used.

Embodiment 2

[0020] The composition of 6061 aluminum alloy is calculated by mass percentage: Mg 0.95 wt%, Si 0.65 wt%, Cu 0.26 wt%, Mn0.03 wt%, Cr 0.06 wt%, Fe 0.05 wt%, Ti 0.03 wt%, the balance is Al .

[0021] Homogenizing heat treatment of alloy cast rods: from room temperature to 380°C at a rate of 30°C / h, heat preservation for 12 hours, then at a rate of 45°C / h to 540°C, heat preservation for 20 hours; followed by hot rolling, Cold rolling, and solution treatment at 530°C for 30 minutes, artificial aging (200°C for 3 hours).

[0022] Materials In the anodic oxidation sandblasting process, No. 205 zircon sand is used.

Embodiment 3

[0024] The composition of 6061 aluminum alloy is calculated by mass percentage: Mg 0.86 wt%, Si 0.70 wt%, Cu 0.30 wt%, Mn0.05 wt%, Cr 0.10 wt%, Fe 0.08 wt%, Ti 0.02 wt%, the balance is Al .

[0025] Homogenized heat treatment of alloy cast rods: from room temperature to 400°C at a rate of 40°C / h, heat preservation for 8 hours, and then at a rate of 42°C / h to 560°C, heat preservation for 18 hours; followed by hot rolling, Cold rolling, solution treatment at 550°C for 20 minutes, artificial aging at 210°C for 1 hour.

[0026] Materials In the anodic oxidation sandblasting process, No. 205 zircon sand is used.

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Abstract

The invention relates to a 6061 aluminum alloy for a 3C product appearance piece and a processing method of the 6061 aluminum alloy. The micro elements in the aluminum alloy comprise, by mass percentage, smaller than or equal to 0.05wt% of Mn, 0.05-0.10wt% of Cr and smaller than or equal to 0.10wt% of Fe. The processing method includes that a cast ingot is heated to 360-420 DEG C at the speed of 20-50 DEG C / h, heat preservation is performed for 8-12 h, then the cast ingot is heated to 540-570 DEG C at the speed of 20-50 DEG C / h, and heat preservation is performed for 10-20 h; then hot rolling and cold rolling are performed; a cold rolled plate is subjected to solution treatment; and finally, aging treatment is performed, and heat preservation is performed for 1-24 h at 150-220 DEG C. By means of the technical scheme, a 6061 aluminum alloy plate material can be subjected to sand blasting treatment by using number 203-205 zircon sand in the anode oxidization manufacturing procedure, the anode oxidizing effect is extremely good, and the anode oxidization material stripe defect can be avoided.

Description

technical field [0001] The invention relates to a 6061 aluminum alloy for 3C product appearance parts and a processing method thereof, belonging to the technical field of nonferrous metals. Background technique [0002] 6xxx series aluminum alloys (6063 and 6061 alloys) are widely used in the manufacture of 3C product appearance parts due to their high strength and good anodic oxidation effect. Among them, because the anodized color effect of 6063 aluminum alloy is better than that of 6061, 6063 alloy is used in large-area anodized appearance products, while 6061 alloy is used in parts with higher requirements for strength. [0003] Although 6061 aluminum alloy is mainly used in parts with high strength requirements, it still needs to meet the appearance requirements of anodizing, such as no "material grain" (that is, thin strips along the rolling direction). The defect of "material grain" in anodic oxidation is the main obstacle affecting the application of 6xxx series alu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/08C22F1/047C25D11/16
CPCC22C21/08C22F1/047C25D11/16
Inventor 钟皓司开田陈纯刘跃花吴至贵杨达彬张道曾红生
Owner 苏州中色研达金属技术有限公司
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