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Hot-rolling process for high-strength anode oxidizing aluminum alloy

Anodizing, aluminum alloy technology, applied in metal rolling, metal rolling, metal processing equipment and other directions, can solve problems such as insufficient strength, and achieve the effect of high strength and excellent comprehensive performance

Inactive Publication Date: 2020-02-07
CHINALCO RUIMIN +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a hot-rolling process of aluminum alloys for high-strength anodic oxidation. The hot-rolling process solves the problem that the existing 5252 alloy is used as a high-end oxide shell by hot-rolling the 5252 aluminum alloy skin material and the 7075 alloy core material. Insufficient strength exists to obtain aluminum alloy hot-rolled coils with high strength and suitable for anodizing

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A hot-rolling process for aluminum alloys for high-strength anodic oxidation, comprising the following steps:

[0023] 1) In order to meet the product quality requirements, the production of the leather material is completed by using the ingot saw blade: the leather material with a thickness of 550mm is cut into different pieces along the length direction with a 5252 alloy ingot. After the saw blade, the thickness of the leather material For 50mm, the length and width of the leather material remain unchanged. In the production process of leather saw blades, after sawing, the unevenness of the upper and lower surfaces of each piece of leather is required to be ≤±0.5mm, the horizontal slope within ±0.2mm / 100mm, and the vertical slope within ±0.5mm / 500mm; The surface roughness is 30μm±5μm. Controlling the straightness and roughness of the saw surface of the leather material is beneficial to improving the composite effect of the leather material and the core material befor...

Embodiment 2

[0031] A hot-rolling process for aluminum alloys for high-strength anodic oxidation, comprising the following steps:

[0032] 1) In order to meet the product quality requirements, the production of the leather material is completed by using the ingot saw blade: the leather material with a thickness of 550mm is cut into different pieces along the length direction with a 5252 alloy ingot. After the saw blade, the thickness of the leather material For 55mm, the length and width of the leather material remain unchanged. In the production process of leather saw blades, after sawing, the unevenness of the upper and lower surfaces of each piece of leather is required to be ≤±0.5mm, the horizontal slope within ±0.2mm / 100mm, and the vertical slope within ±0.5mm / 500mm; The surface roughness is 30μm±5μm. Controlling the straightness and roughness of the saw surface of the leather material is beneficial to improving the composite effect of the leather material and the core material befor...

Embodiment 3

[0040] A hot-rolling process for aluminum alloys for high-strength anodic oxidation, comprising the following steps:

[0041]1) In order to meet the product quality requirements, the production of the leather material is completed by using the ingot saw blade: the leather material with a thickness of 550mm is cut into different pieces along the length direction with a 5252 alloy ingot. After the saw blade, the thickness of the leather material For 50mm, the length and width of the leather material remain unchanged. In the production process of leather saw blades, after sawing, the unevenness of the upper and lower surfaces of each piece of leather is required to be ≤±0.5mm, the horizontal slope within ±0.2mm / 100mm, and the vertical slope within ±0.5mm / 500mm; The surface roughness is 30μm±5μm. Controlling the straightness and roughness of the saw surface of the leather material is beneficial to improving the composite effect of the leather material and the core material before...

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Abstract

The invention relates to a hot-rolling process for a high-strength anode oxidizing aluminum alloy. The hot-rolling process comprises the following steps: accomplishing manufacturing of a skin materialthrough a cast ingot saw blade production way in a production process of a 5252 alloy skin material; tightening the 5252 alloy skin material with a 7075 alloy core material through a steel belt, thereby accomplishing pre-rolling compounding of the skin material and the core material; rolling a heated composite cast ingot on a hot rough-rolling machine, guaranteeing small rolling reduction and lowspeed 1-6 passes before hot-rolling, not spraying emulsion, thereby accomplishing composite rolling; after composite rolling is ended, rolling composite intermediate blank according to large rollingreduction and high speed, and finally rolling to needed hot-rolling thickness through a 3-rack hot finish-rolling machine, thereby accomplishing production of a hot-rolled composite coiled material. The hot-rolling process solves the problem that an existing 5252 alloy, taken as a high-end oxidizing material housing, is insufficient in strength through hot-rolling compounding of 5252 aluminum alloy skin material and the 7075 alloy core material, so that high-strength aluminum alloy hot-rolled coiled material suitable for anode oxidizing is obtained.

Description

technical field [0001] The invention relates to a hot rolling process of aluminum alloy for high-strength anodic oxidation, which belongs to the technical field of non-ferrous metals. Background technique [0002] Composite materials are materials with new properties composed of two or more materials with different properties through physical or chemical methods on the macroscopic (microscopic) level. Various materials learn from each other in terms of performance and produce synergistic effects, so that the comprehensive performance of the composite material is better than that of the original constituent materials to meet various requirements. [0003] With the development needs of the electronics industry for thinness and beauty, 5252 aluminum alloy as a high-end oxide material can be used in mobile phone casings, notebook casings, air-conditioning panels, etc., but it has the disadvantages of insufficient strength and high material cost. 7075 aluminum alloy is a high-st...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B1/38B21B47/00
CPCB21B1/38B21B47/00B21B2001/386B21B2201/06
Inventor 吴建新刘华春付海鹏江钟宇徐始祥
Owner CHINALCO RUIMIN
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