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Production process of ultrathin special-shaped aluminum alloy extruded section and product

A technology for aluminum alloy profiles and extruded profiles, which is applied in the production process and product field of ultra-thin special-shaped aluminum alloy extruded profiles, can solve the problems affecting quenching quality and size, and achieve the effects of ensuring size, reducing waves and good quality.

Active Publication Date: 2016-09-07
CHINA ZHONGWANG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the wall thickness of 6063 alloy is too thin and the shape is too complicated, in order to ensure the size, the quenching system often cannot meet the requirements, which affects its quenching quality and size.

Method used

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  • Production process of ultrathin special-shaped aluminum alloy extruded section and product
  • Production process of ultrathin special-shaped aluminum alloy extruded section and product

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Alloy components and their contents are: Si: 0.47%; Fe: 0.15%; Cu: 0.02%; Mn: 0.05%; Mg: 0.45%; Cr: 0.02%; Zn: 0.02%; Ti: 0.05%; :margin.

[0027] (1) Preheating: the preheating temperature of the mold is 490°C, the preheating temperature of the ingot is 500°C, and the preheating temperature of the extrusion cylinder is 455°C;

[0028] (2) extrusion molding: extruding the ingot, controlling the extrusion coefficient to be 55.6, and the extrusion speed to be 2.0m / min;

[0029] (3) Quenching treatment: the extruded aluminum alloy profile is first carried out on-line water mist treatment to shape the special-shaped area on the aluminum alloy profile at the outlet of the extrusion cylinder, such as figure 1 As shown, and then the overall online water mist treatment of aluminum alloy profiles, such as figure 2 As shown, and the temperature of the aluminum alloy profile is reduced to 18°C;

[0030] (4) Stretch straightening, traction straightening by traction leveler, elo...

Embodiment 2

[0034] Alloy components and their contents are: Si: 0.52%; Fe: 0.20%; Cu: 0.02%; Mn: 0.05%; Mg: 0.50%; Cr: 0.02%; Zn: 0.02%; Ti: 0.05%; :margin.

[0035] (1) Preheating: the preheating temperature of the mold is 510°C, the preheating temperature of the ingot is 520°C, and the preheating temperature of the extrusion cylinder is 460°C;

[0036] (2) extrusion molding: the ingot is extruded, the extrusion coefficient is controlled to be 55.6, and the extrusion speed is 2.3m / min;

[0037] (3) Quenching treatment: the extruded aluminum alloy profile is first carried out on-line water mist treatment to shape the special-shaped area on the aluminum alloy profile at the outlet of the extrusion cylinder, such as figure 1 As shown, and then the overall online water mist treatment of aluminum alloy profiles, such as figure 2 Shown, and make the aluminum alloy profile temperature drop to 30 ℃;

[0038] (4) Stretch straightening, traction straightening by traction leveler, stretch rate ...

Embodiment 3

[0042] Alloy components and their contents are: Si: 0.52%; Fe: 0.20%; Cu: 0.02%; Mn: 0.05%; Mg: 0.50%; Cr: 0.02%; Zn): 0.02%; Ti): 0.05% ; Al: margin.

[0043] (1) Preheating: the preheating temperature of the mold is 510°C, the preheating temperature of the ingot is 520°C, and the preheating temperature of the extrusion cylinder is 460°C;

[0044] (2) extrusion molding: the ingot is extruded, the extrusion coefficient is controlled to be 55.6, and the extrusion speed is 2.5m / min;

[0045] (3) Quenching treatment: the extruded aluminum alloy profile is first carried out on-line water mist treatment to shape the special-shaped area on the aluminum alloy profile at the outlet of the extrusion cylinder, such as figure 1 As shown, and then the overall online water mist treatment of aluminum alloy profiles, such as figure 2 As shown, and the temperature of the aluminum alloy profile is reduced to 35°C;

[0046] (4) Stretch straightening, traction straightening by traction level...

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Abstract

The invention relates to a production process of an ultrathin special-shaped aluminum alloy extruded section and a product. The process comprises the following steps: (1) preheating: the mould preheating temperature is 490-510 DEG C, the cast ingot preheating temperature is 500-520 DEG C, an extrusion barrel preheating temperature is 455-460 DEG C; (2) extrusion molding: extruding a cast ingot; (3) quenching treatment: firstly performing local online water mist treatment on the extruded aluminum alloy section at an outlet of the extrusion barrel to be set, and then performing integral online waste mist treatment, wherein the temperature of the aluminum alloy section out of a quenching region is 18-35 DEG C; (4) stretch straightening; (5) cutting off to length; and (6) artificial aging. The method provided by the invention can effectively improve the quenching quality of the ultrathin special-shaped aluminum alloy extruded section so as to guarantee the size of the section, and the prepared aluminum alloy extruded section is good in quality, regular in size and high in yield.

Description

technical field [0001] The invention belongs to the field of production and manufacture of aluminum alloys, and in particular relates to a production process and products of ultra-thin special-shaped aluminum alloy extruded profiles. Background technique [0002] The 6063 series aluminum alloy is based on magnesium and silicon as the main alloying elements and Mg 2 The aluminum alloy with Si phase as the strengthening phase belongs to the aluminum alloy that can be strengthened by heat treatment. It has the advantages of medium strength, high corrosion resistance, no tendency of stress corrosion cracking, good welding performance, unchanged corrosion performance of welding zone, good formability and process performance, etc. The main product is extruded profiles. This alloy is widely used as the frame of aluminum doors, windows and curtain walls. In order to ensure that doors, windows and curtain walls have high wind pressure resistance, assembly performance, corrosion resis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22F1/05C22C21/02
CPCC22C21/02C22F1/002C22F1/05
Inventor 王德营
Owner CHINA ZHONGWANG
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