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A kind of process heat treatment process of aluminum alloy for anodic oxidation

An anodic oxidation and aluminum alloy technology, applied in the field of aluminum alloy processing, can solve the problems of stagnant pace and increased investment risk of 1090 high-end anodic oxidation materials, and achieve the effect of simple process, high forming ability and high brightness

Active Publication Date: 2018-10-30
XINJIANG JOINWORLD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, domestic aluminum alloy products in the field of traffic lighting decoration are concentrated in the low-end 1070, 1050, 1060 and other grades of aluminum alloys, and the reflectivity is 60-70%. The processing methods of this type of products, except for DC (hot rolling ) processing methods, there is even CC (casting-rolling-rolling) rolling method of production, the absence of this core technology and the disorderly competition in the domestic market not only lead to an increase in investment risks for domestic enterprises to develop 1090 high-end anodic oxidation materials At the same time, it also caused the development of high-end anodized products in my country to stagnate.

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  • A kind of process heat treatment process of aluminum alloy for anodic oxidation
  • A kind of process heat treatment process of aluminum alloy for anodic oxidation

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Experimental program
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Effect test

Embodiment 1

[0033] The 1090 soft aluminum alloy plate ingot is homogenized at a low temperature of 450°C and held for 8 hours; then it is rolled at a low temperature of 410-430°C, and the final rolling temperature of the hot rolling is controlled at a specific temperature range of 235-250°C, and natural aging is adopted. Method After 48 hours of temporary storage, cold rolling is carried out. First, three passes of semi-finished product production are carried out using high-roughness textured work rolls with a roughness of 0.55-0.65 μm, and then two passes are carried out with low-roughness work rolls with a roughness of 0.35-0.38 μm. For the next finished product rolling, cleaning is carried out after the cold rolling is completed. The cleaning needs to be completed within 48 hours. The cleaned product is annealed in an ordinary air annealing furnace. Start timing at ℃, keep warm for 8 hours, and use air cooling to cool after keeping warm.

[0034]After the 1090 soft aluminum alloy plate...

Embodiment 2

[0037] The 1090 hard aluminum alloy plate ingot is homogenized at a low temperature of 490°C and kept for 8 hours; then the rolling is started at 440-460°C, and the final rolling temperature of the hot rolling is controlled at a specific temperature range of 250-270°C, and the method of natural aging is adopted. After 48 hours, the material temperature is lower than 60°C for cold rolling, using 0.50-0.60μm high-roughness textured work rolls for three passes of semi-finished product production, after the semi-finished product rolling is completed, the material surface is cleaned, and the cleaning is completed After that, the furnace temperature rises to 360°C within 5 hours. When the temperature of the material reaches 320°C, the heat preservation time is started. The heat preservation time is 12 hours. After heat preservation, it is cooled by air cooling. The low roughness of 0.35μm is used for two passes of finished product rolling. After the cold rolling is completed, the fin...

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Abstract

The invention discloses a process heat treatment technology of an aluminium alloy for anodizing. The technology comprises the steps as follows: (1) an aluminium alloy sheet ingot is subjected to homogenization treatment at 450-490 DEG C firstly; (2) hot rolling: rolling is started at 410-460 DEG C after homogenization treatment, and the finish rolling temperature is controlled to range from 235 DEG C to 270 DEG C; (3) natural ageing treatment: the ingot is placed naturally for 48 h after hot rolling; (4) after natural ageing treatment, cold rolling, cleaning and annealing are performed, and the annealing temperature ranges from 320 DEG C to 340 DEG C. The technology is simple and applicable to industrial batch production, products can meet anodizing treatment requirements of various products, and common aluminium 1090 aluminium alloy can obtain the forming ability and the high brightness of foreign like products using commercial high-purity aluminium as the base metal with the treatment technology.

Description

technical field [0001] The invention belongs to the field of aluminum alloy processing, and in particular relates to a process heat treatment process of aluminum alloy for anodic oxidation. Background technique [0002] 1090 aluminum alloy for anodic oxidation is currently the highest grade aluminum alloy product widely used in the field of lighting decoration with industrial pure aluminum (aluminum purity ≥ 99.90%, generally not exceeding 99.93%) as the base material in the world. , which are divided into soft (including semi-soft) products for anodic oxidation and hard products for anodic oxidation, among which 1090 soft (including semi-soft) products for anodic oxidation, and 1090 reflectors for bright light reflectors (also domestic Referred to as reflector), the product is characterized by high brightness and high forming ability, and is widely used in indoor and outdoor and traffic lighting fields; while 1090 hard products for anodizing are represented by 1090 mirror p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22F1/04
CPCC22F1/04
Inventor 叶志国
Owner XINJIANG JOINWORLD CO LTD