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A processing heat treatment process of aluminum alloy extruded profiles

A technology for extruding profiles and aluminum alloys, which is applied in the field of aluminum alloy processing to achieve the effects of stress relief, hardness improvement and excellent comprehensive performance.

Active Publication Date: 2022-04-19
苏州意友金属材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, my country's aluminum alloy hot deformation extrusion process has gradually approached maturity, but there is still a big gap compared with foreign developed countries in terms of the quality of extruded products or the efficiency and standardization of extrusion production.

Method used

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  • A processing heat treatment process of aluminum alloy extruded profiles

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Effect test

Embodiment 1

[0023] A processing and heat treatment process for aluminum alloy extruded profiles, comprising the following steps:

[0024] (1) Homogenize the heat treatment of 6063 aluminum alloy ingots, specifically: heat preservation at 535°C for 12 hours, and then air-cool to room temperature; Heat treatment, so that the temperature of the aluminum alloy ingot is 450°C, the temperature of the extrusion die is 460°C, and the temperature of the extrusion cylinder is 430°C; and then the extrusion treatment is performed to obtain a 6063 aluminum alloy extrusion profile;

[0025] Among them, the 6063 aluminum alloy ingot is composed of the following components by weight percentage: Mg: 0.49%, Si: 0.38%, Fe≤0.18%, Zn≤0.02%, Mn≤0.03%, Ti≤0.05%, and the balance is Al and not Avoid impurities.

[0026] (2) Quenching the 6063 aluminum alloy extruded profile obtained in step (1), specifically: first heating up to 460°C at a rate of 30°C / 10min, keeping it warm for 4 hours, and then cooling to room...

Embodiment 2

[0029] A processing and heat treatment process for aluminum alloy extruded profiles, comprising the following steps:

[0030] (1) Homogenize the heat treatment of 6063 aluminum alloy ingots, specifically: heat preservation at 535°C for 12 hours, and then air-cool to room temperature; Heat treatment, so that the temperature of the aluminum alloy ingot is 450°C, the temperature of the extrusion die is 460°C, and the temperature of the extrusion cylinder is 430°C; and then the extrusion treatment is performed to obtain a 6063 aluminum alloy extrusion profile;

[0031] Among them, the 6063 aluminum alloy ingot is composed of the following components by weight percentage: Mg: 0.49%, Si: 0.38%, Fe≤0.18%, Zn≤0.02%, Mn≤0.03%, Ti≤0.05%, and the balance is Al and not Avoid impurities.

[0032] (2) Quenching the 6063 aluminum alloy extruded profiles obtained in step (1), specifically: first heating up to 455°C at a rate of 30°C / 10min, keeping it warm for 4h, and then cooling to room tem...

Embodiment 3

[0035] A processing and heat treatment process for aluminum alloy extruded profiles, comprising the following steps:

[0036](1) Homogenize the heat treatment of 6063 aluminum alloy ingots, specifically: heat preservation at 535°C for 12 hours, and then air-cool to room temperature; Heat treatment, so that the temperature of the aluminum alloy ingot is 450°C, the temperature of the extrusion die is 450°C, and the temperature of the extrusion cylinder is 425°C; and then the extrusion treatment is performed to obtain a 6063 aluminum alloy extrusion profile;

[0037] Among them, the 6063 aluminum alloy ingot is composed of the following components by weight percentage: Mg: 0.51%, Si: 0.38%, Fe≤0.18%, Zn≤0.02%, Mn≤0.03%, Ti≤0.05%, and the balance is Al and not Avoid impurities.

[0038] (2) Quenching the 6063 aluminum alloy extruded profiles obtained in step (1), specifically: first heating up to 460°C at a rate of 30°C / 10min, keeping it warm for 3.5h, and then cooling to room te...

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Abstract

The invention provides a processing heat treatment process for aluminum alloy extruded profiles, comprising the following steps: (1) performing homogenization heat treatment on 6063 aluminum alloy ingot; Carry out heat treatment and extrusion respectively; (2) carry out quenching treatment and tempering treatment to the obtained 6063 aluminum alloy extruded profile; 425‑450°C for 2‑3h, water cooling; second stage aging heat treatment, temperature 320‑340°C, time 4‑6h, air cooling; third stage aging heat treatment, temperature 245‑265°C, time 5-8h, air cooling; the fourth aging heat treatment, the temperature is 180-215℃, the time is 5-8h, cooling with the furnace; the fifth aging heat treatment, the temperature is 125-135℃, the time is 5-8h, with the furnace Cooling: the 6063 aluminum alloy extruded profile processed by the present invention has high strength and hardness, and excellent corrosion resistance.

Description

technical field [0001] The invention relates to the technical field of aluminum alloy processing, in particular to a heat treatment process for aluminum alloy extruded profiles. Background technique [0002] With the continuous deepening of human understanding of the properties of aluminum such as lightweight, corrosion resistance, easy formability, and low-temperature performance stability, as well as the continuous improvement of aluminum processing and welding technology, many aluminum products with complex sections have been extruded. Pressing aluminum profiles to simplify the manufacturing process, reduce processing and maintenance costs, and because aluminum alloys can maintain good performance at low temperatures, and aluminum does not chemically react with oil, natural gas and other chemical liquids, therefore, in many aluminum products In the field of application, the cost-effective advantage of using aluminum has been more and more widely recognized by the relevant...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22F1/047C22C21/08
CPCC22F1/047C22F1/002C22C21/08
Inventor 王淼王云
Owner 苏州意友金属材料有限公司
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