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Al-Mg-Si system aluminum alloy extrusion profile and production process thereof

A technology of extrusion profile and production process, which is applied in the field of Al-Mg-Si aluminum alloy extrusion profile and its production process, which can solve problems such as cracks, component failure, and unqualified bending performance, so as to improve the yield of products , Improve tissue performance, excellent bending performance

Active Publication Date: 2017-08-11
SHANDONG NANSHAN ALUMINUM +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the process of manufacturing the car body, Al-Mg-Si series aluminum alloy plates and profiles often need to be bent and formed. Cracks that lead to failure of manufactured parts

Method used

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  • Al-Mg-Si system aluminum alloy extrusion profile and production process thereof
  • Al-Mg-Si system aluminum alloy extrusion profile and production process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Embodiment 1 provides a kind of Al-Mg-Si series aluminum alloy extruded profile, and it adopts following production process to make:

[0047] Raw materials are configured according to the composition of alloy elements: Si: 0.65%, Fe: 0.2%, Mg: 0.45%, Cu: 0.15%, Mn: 0.25%, Cr: 0.15%, Ti: 0.07%, Zn: 0.1%, and the balance Consists of Al and unavoidable impurities.

[0048] The above-mentioned raw materials are subjected to homogenization treatment, specifically, the temperature is raised to 530° C. at a heating rate of 30° C. / h, and the temperature is maintained for 12 hours to obtain a casting billet.

[0049] The casting billet is hot-extruded, specifically, the casting billet is heated to 500°C, the temperature gradient of the casting billet is 10°C, and the casting billet is extruded, the temperature of the extrusion cylinder is 460°C, and the temperature of the extrusion mold is 490°C , the outlet temperature of the hot extrusion is 510°C, the extrusion speed is 1.5m...

Embodiment 2

[0053] Embodiment 2 provides an Al-Mg-Si series aluminum alloy extruded profile, which is obtained by the following production process:

[0054] Raw materials are configured according to the composition of alloy elements: Si: 0.75%, Fe: 0.25%, Mg: 0.55%, Cu: 0.2%, Mn: 0.35%, Cr: 0.2%, Ti: 0.07%, Zn: 0.1%, and the balance Consists of Al and unavoidable impurities.

[0055] The above-mentioned raw materials are subjected to homogenization treatment, specifically, the temperature is raised to 530° C. at a heating rate of 30° C. / h, and the temperature is maintained for 12 hours to obtain a casting billet.

[0056] The casting billet is hot-extruded, specifically, the casting billet is heated to 500°C, the temperature gradient of the casting billet is 10°C, and the casting billet is extruded, the temperature of the extrusion cylinder is 460°C, and the temperature of the extrusion mold is 480°C , the exit temperature of the hot extrusion is 515°C, the extrusion speed is 1.8mm / s, an...

Embodiment 3

[0059] Embodiment 3 provides an Al-Mg-Si series aluminum alloy extruded profile, which is obtained by the following production process:

[0060] Raw materials are configured according to the composition of alloy elements: Si: 0.85%, Fe: 0.3%, Mg: 0.65%, Cu: 0.25%, Mn: 0.45%, Cr: 0.25%, Ti: 0.05%, Zn: 0.1%, and the balance Consists of Al and unavoidable impurities.

[0061] The above-mentioned raw materials are subjected to homogenization treatment, specifically, the temperature is raised to 530° C. at a heating rate of 30° C. / h, and the temperature is maintained for 12 hours to obtain a casting billet.

[0062] The casting billet is hot-extruded, specifically, the casting billet is heated to 480°C, the temperature gradient of the casting billet is 10°C, and the casting billet is extruded, the temperature of the extrusion cylinder is 460°C, and the temperature of the extrusion mold is 500°C , the outlet temperature of hot extrusion is 510°C, the extrusion speed is 2mm / s, and t...

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Abstract

The invention provides an Al-Mg-Si system aluminum alloy extrusion profile and a production process thereof, and relates to the technical field of non-ferrous metal material processing engineering. The Al-Mg-Si system aluminum alloy extrusion profile comprises the alloy element components, by weight: 0.65%-0.85% of Si, 0.2%-0.3% of Fe, 0.45%-0.65% of Mg, 0.15%-0.25% of Cu, 0.25%-0.45% of Mn, 0.15%-0.25% of Cr, 0.05%-0.07% of Ti, 0-0.1% of Zn and the balance Al. When the Al-Mg-Si system aluminum alloy extrusion profile is produced, the raw material is prepared according to the composition of the alloy element components and subjected to homogenization treatment, then hot extrusion is conducted, quenching is conducted on line, and aging treatment is conducted finally. According to the production process of the Al-Mg-Si system aluminum alloy extrusion profile, the structure property and the alloy plasticity of the material can be significantly improved, so that the obtained profile has the excellent bending property, the follow-up bending forming requirements are met, and the product yield is increased.

Description

technical field [0001] The invention relates to the technical field of non-ferrous metal material processing engineering, and in particular to an Al-Mg-Si series aluminum alloy extrusion profile and a production process thereof. Background technique [0002] Al-Mg-Si series aluminum alloy belongs to the deformed aluminum alloy that can be strengthened by heat treatment. It has medium strength, excellent formability, welding performance and corrosion resistance. Wall hollow profile, realize online air cooling or water mist cooling quenching. Japan's 6N01 aluminum alloy and common 6063 and 6005A aluminum alloys are Al-Mg-Si alloys, which are widely used in rail transportation, aerospace, ships, automobile manufacturing and other fields. [0003] The bending performance of Al-Mg-Si aluminum alloy is an important mechanical performance index, which is used to characterize the state of the material when subjected to bending load, and is often evaluated by bending experiments in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/02C22F1/05
CPCC22C21/02C22F1/05
Inventor 程仁策吕正风纵荣荣张华李俊鹏任欣王岗郭淑兰杨亚平辛涛王美春李辉王博赵俊凤
Owner SHANDONG NANSHAN ALUMINUM
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