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A processing technology of 5050 aluminum alloy

A processing technology and technology for aluminum alloys, applied in the field of aluminum alloys, can solve problems such as affecting the uniformity of oxidation and restricting applications, and achieve the effects of poor equipment versatility, improved selectivity, and reduced processing difficulty.

Active Publication Date: 2022-02-18
XINJIANG JOINWORLD CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This characteristic of the final state of the material, while inevitably forming a certain degree of Mg segregation and ultimately affecting the uniformity of oxidation, also induces a more obvious orange peel / slip when the material is stretched or bent. and other appearance defects, which limit the application of materials on some 3C electronic housings

Method used

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  • A processing technology of 5050 aluminum alloy
  • A processing technology of 5050 aluminum alloy
  • A processing technology of 5050 aluminum alloy

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Embodiment 1

[0075] The specific operation steps are as follows:

[0076] (1) Use 1080 pure aluminum liquid with an Fe content of 0.07-0.10% for ingot casting, and the Mg content control target is 1.5-1.8%;

[0077] After the ingot is milled, homogenization annealing is carried out, and the heat preservation is carried out at 500°C for 12 hours.

[0078] (2) Hot rolling: the homogenized annealed ingot is rolled at a low temperature of 460-480°C for a total of 23 passes.

[0079]When performing hot processing with 23 passes of hot rolling, in the 1st to 4th passes, the absolute reduction in a single pass is ≤ 15mm, and the processing technology setting is carried out with the absolute reduction gradually increasing; from the 5th to the 4th 16 passes, adopt the absolute reduction of no more than 30mm to set up the thermal processing process; under the premise that the temperature of the ingot is ≥ 400°C, complete the cutting of the head and tail of the ingot; design the cutting head based o...

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Abstract

The invention relates to a processing technology of 5050 aluminum alloy. A processing technology for 5050 aluminum alloy, comprising: (1) homogenizing annealing; (2) hot rolling: hot rolling the plate ingot after homogenizing annealing at 460-480°C; (3) hot rolling the ingot after hot rolling The coil is quickly air-cooled; (4) After the coil is cooled by air, cold rolling, cleaning and homogenization heat treatment are performed; (5) The coil after homogenization heat treatment is subjected to semi-finished cold rolling and finished cold rolling. According to the processing technology of a 5050 aluminum alloy described in the present invention, the 5050 aluminum alloy produced can replace the oxidized 5052 of the 3C electronic shell through composition design, hot rolling start temperature, hot processing system, hot rolling aging process, cold processing technology and control. Aluminum alloy, the production method is simple, applicable to the industrial production of all types of single-stand hot rolling equipment and ordinary four-roll cold rolling mills in China, with low production cost, wide practicability, low difficulty in production and control, and obvious product market competitiveness. Significant economic benefits.

Description

technical field [0001] The invention belongs to the technical field of aluminum alloys, and in particular relates to a processing technology of 5050 aluminum alloys. Background technique [0002] The widely used 5052 aluminum alloy for 3C electronic shell oxidation at home and abroad mainly has two usage states of H32 and O. The product has certain forming ability, good oxidation uniformity and strong resistance to deformation and damage. At the beginning of this century, with the rapid expansion of my country's 3C electronic products and related industries, through various means such as imitation and self-improvement, a number of aluminum processing enterprises represented by my country Aluminum System have formed the 3C electronic housing oxidation The complete product processing and application system of 5052 aluminum alloy, 5052 for 3C electronic housing, and even more high-end 5252 products for similar purposes represent the highest level in this product field in China a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22F1/047C21D9/00C22C21/06B21B3/00
CPCC22F1/047C21D9/0081C22C21/06B21B3/00B21B2003/001B21B2201/06
Inventor 李心愿崔敬鑫俞立栋李玉玲苏明沈国柱周树德
Owner XINJIANG JOINWORLD CO LTD
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