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Aluminum alloy section bar and manufacturing method thereof

A technology for aluminum alloy profiles and a manufacturing method, applied in the field of aluminum alloy processing, can solve the problems of insufficient corrosion resistance and quenching, failure to meet requirements, insufficient quenching, etc., and achieve high production efficiency, high yield and low manufacturing cost. Effect

Inactive Publication Date: 2018-07-24
SHANDONG NANSHAN ALUMINUM +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for aluminum alloy profiles with high quenching sensitivity, thick walls, and asymmetric and complex sections, simple online quenching often causes problems such as insufficient quenching or local deformation after quenching, and the mechanical properties of the products are mostly unqualified. Or the mechanical properties meet the customer's requirements, but other properties such as corrosion resistance of the material fail to meet the requirements due to insufficient quenching

Method used

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  • Aluminum alloy section bar and manufacturing method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The present embodiment provides a 6A01 aluminum alloy profile, which is obtained according to the following manufacturing method:

[0033] (1) extrusion

[0034] A 150MN extrusion machine is used to extrude 6A01 aluminum alloy casting rods. The mold temperature during extrusion is 495±5°C, the temperature of the casting rods is 535±5°C, and the temperature gradient from the head to the tail is controlled at 12±2°C. The temperature is 440°C, the extrusion residue is 42mm, the exit speed of the extruded product is 1.1-2.2m / min, the exit temperature of the extrusion is not lower than 475°C, and a 6A01 aluminum alloy profile product is obtained.

[0035] (2) On-line quenching

[0036] After the 6A01 aluminum alloy profile products are extruded out of the outlet, choose strong wind cooling and online quenching. The online quenching cooling is adjusted to 80% of the upper air volume and 60% of the lower air volume. The forced air-cooling channel with the same caliber and th...

Embodiment 2

[0042] The present embodiment provides a 6063 aluminum alloy profile, which is obtained according to the following manufacturing method:

[0043] (1) extrusion

[0044]A 150MN extrusion machine is used to extrude 6063 aluminum alloy casting rods. The mold temperature during extrusion is 495±5°C, the temperature of the casting rods is 535±5°C, and the temperature gradient from the head to the tail is controlled at 12±2°C. The temperature is 450°C, the extrusion residue is 43mm, the exit speed of the extruded product is 1.1-2.2m / min, the exit temperature of the extrusion is not lower than 475°C, and a 6063 aluminum alloy profile product is obtained.

[0045] (2) On-line quenching

[0046] After the 6063 aluminum alloy profile products are extruded out of the outlet, choose strong wind cooling and online quenching. The online quenching cooling is adjusted to 90% of the upper air volume and 80% of the lower air volume. A flat diameter is added on both sides of the product entranc...

Embodiment 3

[0052] This embodiment provides a 6005A aluminum alloy profile, which is obtained according to the following manufacturing method:

[0053] (1) extrusion

[0054] A 150MN extrusion machine is used to extrude 6005A aluminum alloy casting rods. The mold temperature during extrusion is 495±5°C, the temperature of the casting rods is 535±5°C, and the temperature gradient from the head to the tail is controlled at 12±2°C. The temperature is 455°C, the extrusion residue is 44mm, the exit speed of the extruded product is 1.1-2.2m / min, the exit temperature of the extrusion is not lower than 475°C, and a 6005A aluminum alloy profile product is obtained.

[0055] (2) On-line quenching

[0056] After the 6005A aluminum alloy profile products are extruded out of the outlet, choose strong wind cooling and online quenching. The online quenching cooling is adjusted to 90% of the upper air volume and 80% of the lower air volume. Add a flat diameter on both sides of the product entrance in th...

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Abstract

The invention discloses an aluminum alloy section bar and a manufacturing method thereof, and relates to the field of aluminum alloy processing. According to the embodiment of the invention, the manufacturing method for the aluminum alloy section bar is used for extruding an aluminum alloy cast rod to obtain a product, and the product is subjected to online quenching, forced air-cooling treatmentis added during online quenching, and manual ageing treatment is performed. The manufacturing method can be used for performing sufficient thermal treatment on products with different quenching cooling speed sensitivity and different section bar wall thicknesses, and is high in production efficiency; and the manufactured aluminum alloy section bar is high in yield, and is low in manufacturing cost.

Description

technical field [0001] The invention relates to the field of aluminum alloy processing, and in particular to an aluminum alloy profile and a manufacturing method thereof. Background technique [0002] Aluminum alloy materials have the characteristics of low density, good corrosion resistance, high strength and easy processing, and have been widely used in the production of aluminum alloys for automobiles, rail vehicles and aviation. Because aluminum alloys are sensitive to changes in heat treatment temperature, different process parameters will have a greater impact on mechanical properties during different solution heat treatments and aging, especially for those aluminum alloy products with uneven wall thickness, hollow, complex structure, and special shapes , if the heat treatment process is slightly improperly controlled, it may lead to product size deviation and unqualified mechanical properties, which will lead to product rework or even scrapping, which will eventually ...

Claims

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Application Information

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IPC IPC(8): C22F1/04
CPCC22F1/04C22F1/002
Inventor 程仁策姜海涛高盼盼杨亚平赵海滨隋信增张启东阎昭辉
Owner SHANDONG NANSHAN ALUMINUM