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6061 aluminum alloy doped with rare earth element yttrium and preparation method of 6061 aluminum alloy

A rare earth element and aluminum alloy technology, applied in the field of 6061 aluminum alloy doped with rare earth element yttrium and its preparation, can solve the problems of 6061 aluminum alloy whose comprehensive mechanical properties cannot meet the requirements, deformation, etc., and achieve the improvement of microstructure shape and size , Improve the effect of strength and plasticity

Active Publication Date: 2017-01-04
常熟市恒泰精密金属制品有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, as the span of the textile machine increases and the speed increases, the comprehensive mechanical properties of the 6061 aluminum alloy sometimes fail to meet the requirements, and deformation problems are prone to occur

Method used

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  • 6061 aluminum alloy doped with rare earth element yttrium and preparation method of 6061 aluminum alloy

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Example 1: Preparation of 6061 aluminum alloy rod without Y doping.

[0024] The 6061 aluminum alloy ingot was placed in a resistance furnace, kept at 570° C. for 7 hours, and homogenized to obtain a homogenized aluminum alloy ingot.

[0025] Heat the above-mentioned homogenized aluminum alloy ingot to 450°C, extrude a rod of the required size with an extruder, and quickly straighten, cut, and air-cool.

[0026] Firstly, the above-mentioned bar is kept at 540°C for 4 hours for solution treatment, then quenched in water at room temperature for 3 minutes, and the quenching transfer time is controlled not to exceed 10 seconds, and finally kept at 180°C for 8 hours for aging treatment. A 6061 aluminum alloy rod without Y doping can be obtained.

Embodiment 2

[0027] Example 2: Prepare a 6061 aluminum alloy rod material doped with 0.4% Y.

[0028] The 6061 aluminum alloy is placed in a melting furnace, slowly heated to 760°C and kept at a constant temperature. After being completely melted, Al-10Y alloy is added to the molten aluminum until the weight of yttrium accounts for 0.4% of the total weight. Use a bell jar to press the intermediate alloy into the aluminum melt, and use graphite rods to stir continuously to make the yttrium evenly distributed. After the master alloy is completely melted, lower the melt temperature to 730°C and keep the temperature constant, add DSG deslagging and degassing agent to carry out slag and degassing treatment. After the slag and gas removal are completed, the temperature of the melt is lowered to 700°C and kept constant, and after standing for 5 minutes, it is poured into a metal mold preheated to 200°C to obtain an aluminum-yttrium alloy ingot.

[0029] The above-mentioned aluminum-yttrium allo...

Embodiment 3

[0032] Example 3: Preparation of 6061 aluminum alloy plate material doped with 0.4% Y.

[0033] Put the 6061 aluminum alloy in the melting furnace, slowly heat it to 780°C and keep the temperature constant. After being completely melted, Al-10Y alloy is added to the molten aluminum until the weight of yttrium accounts for 0.4% of the total weight. Use a bell jar to press the intermediate alloy into the aluminum melt, and use graphite rods to stir continuously to make the yttrium evenly distributed. After the master alloy is completely melted, lower the melt temperature to 740°C and keep the temperature constant, add DSG deslagging and degassing agent to carry out slag and degassing treatment. After the slag and gas removal are completed, the temperature of the melt is lowered to 720°C and kept constant, and after standing for 10 minutes, it is poured into a metal mold preheated to 200°C to obtain an aluminum-yttrium alloy ingot.

[0034] The above-mentioned aluminum-yttrium ...

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Abstract

The invention belongs to the technical field of aluminum alloy, and relates to 6061 aluminum alloy doped with rare earth element yttrium and a preparation method of the 6061 aluminum alloy. The preparation method particularly comprises the following steps of 1 aluminum-yttrium alloy ingot preparation, 2 homogenization treatment, 3 extrusion forming and 4 heat treatment. By adding rare earth element yttrium (0.1%-0.4%) into the 6061 aluminum alloy, the microstructure of the alloy is improved. Meanwhile, by means of the reasonable extrusion and heat treatment technologies, the mechanical property of the alloy is improved, the tensile strength of the aluminum-yttrium alloy reaches 355 MPa or above, and the application requirement of the alloy in the textile industry field is met.

Description

technical field [0001] The invention belongs to the technical field of aluminum alloys, and relates to a 6061 aluminum alloy doped with rare earth element yttrium and a preparation method thereof. Background technique [0002] With the development of textile machinery in the direction of high speed, light weight and large size, many of its parts are made of aluminum alloy materials. As a light alloy material, 6061 aluminum alloy is often used as the material of choice for key parts in textile machinery due to its good mechanical properties and micro-arc oxidation properties. However, as the span of the spinning machine increases and the speed increases, the comprehensive mechanical properties of the 6061 aluminum alloy sometimes fail to meet the requirements, and deformation problems are prone to occur. Contents of the invention [0003] In view of the above technical problems, the present invention provides a 6061 aluminum alloy doped with rare earth element yttrium and ...

Claims

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Application Information

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IPC IPC(8): C22C21/08C22C1/03C22F1/047C22F1/05
CPCC22C1/026C22C1/03C22C21/08C22F1/002C22F1/047C22F1/05
Inventor 卢雅琳李兴成王健周东帅杨林杨梅谢利
Owner 常熟市恒泰精密金属制品有限公司
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