6-series aluminum alloy and machining method thereof

A processing method and aluminum alloy technology, which is applied in the field of non-ferrous metal processing, can solve problems such as coarseness and inability to cover up structural defects, and achieve the effect of saving costs

Inactive Publication Date: 2017-11-10
杨仲彬
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, if the tissue defects are obvious and coarse, sandblasting cannot cover up the tissue defects

Method used

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  • 6-series aluminum alloy and machining method thereof

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Experimental program
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Effect test

Embodiment 1

[0048] A 6-series aluminum alloy prepared from raw materials comprising the following components:

[0049] Mg: 0.8wt%, Si: 0.6wt%, Mn: 0.02wt%, Ti: 0.02wt%, Fe: 0.08wt%, Cu: 0.02wt%, Cr: 0.005wt.%, the rest is Al and in production and processing unavoidable impurities.

[0050] The processing method of above-mentioned 6 series aluminum alloy comprises the following steps:

[0051] The ingot was homogenized annealed at 530 °C for the first time for 8 h, then cooled to 490 °C for hot rolling, the pass processing rate was 10%, the final hot rolling thickness was 8 mm, and then cold rolling and solid solution Treat the second heat preservation at 550 °C for 30 seconds, and then perform aging treatment at 180 °C for the third time heat preservation for 7 h.

Embodiment 2

[0053] A 6-series aluminum alloy, the composition of which is: Mg 0.7 wt%, Si 0.7 wt%, Mn 0.01 wt%, Ti 0.01 wt.%, Fe 0.07 wt.%, Cu 0.01 wt.%, Cr0.006 wt% , the balance being Al.

[0054] The processing method of above-mentioned 6 series aluminum alloy comprises the following steps:

[0055] The ingot was homogenized annealed at 550 °C for 4 h, then cooled to 500 °C for hot rolling, with a pass processing rate of 15%, hot final rolling thickness of 6 mm, and then cold rolling and solution treatment at 565 °C C for 40 seconds, then aging treatment at 175°C for 8 h.

Embodiment 3

[0057] A 6-series aluminum alloy, comprising:

[0058] Mg 1.0 wt%, Si 0.8 wt%, Mn 0.04 wt%, Ti 0.03 wt%, Fe 0.1 wt%, Cu0.03 wt%, Cr0.005wt%, the rest is Al. Its processing method comprises the following steps: carry out homogenization annealing to ingot 570 ℃ of insulation 5 h, then cool to 400 ℃ and carry out hot rolling, pass processing rate is 12%, hot final rolling thickness is 10 mm, then cold Rolling and solution treatment at 530°C for 10 seconds, then aging treatment at 160°C for 10h.

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Abstract

The invention discloses a 6-series aluminum alloy and a processing method thereof. The 6-series aluminum alloy includes: magnesium (Mg): 0.6-1.0 wt%; silicon (Mg): 0.4-0.8 wt%; manganese (Mn): ≤0.04 wt%; Titanium (Ti): ≤0.04 wt%; Iron (Fe): ≤0.10 wt%; Copper (Cu): ≤0.05 wt%; Chromium (Cr): ≤0.01 wt%; ) and unavoidable impurities. The invention optimizes the components of the 6 series aluminum alloy and controls the processing technology, so that the size and distribution of the intermetallic compounds are better controlled, and finally the material has a better anodic oxidation effect.

Description

technical field [0001] The invention relates to the field of nonferrous metal processing, in particular to a 6-series aluminum alloy and a processing method thereof. Background technique [0002] 6xxx aluminum alloys (6-series aluminum alloys) are widely used in the manufacture of appearance parts of electronic products that require high anodizing effects due to their better anodizing effects (such as white and bright colors). Generally, the appearance parts of electronic products will be sandblasted during the pre-treatment process of anodizing. The purpose of sandblasting is to cover the structural defects of the material (such as "grain lines", that is, thin strips along the direction of processing deformation). However, if the tissue defects are obvious and coarse, sandblasting cannot cover up the tissue defects. The main reason for the generation of material grain is that the size and distribution of intermetallic compounds in the material are not effectively controll...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/08C22C21/02C22F1/047C22F1/043C22F1/05
CPCC22C21/08C22C21/02C22F1/043C22F1/047C22F1/05
Inventor 杨仲彬
Owner 杨仲彬
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