Forming device and method for aluminum alloy structure refining

A forming device and aluminum alloy technology, which is applied in the field of aluminum alloy forming technology, can solve the problems of difficult industrial mass production, high equipment maintenance costs, expensive electromagnetic stirring equipment, etc., and achieve the effect of improving structure and increasing uniformity

Pending Publication Date: 2018-03-16
SOUTH CHINA UNIV OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the cost of electromagnetic stirring equipment is high, and the maintena...

Method used

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  • Forming device and method for aluminum alloy structure refining
  • Forming device and method for aluminum alloy structure refining
  • Forming device and method for aluminum alloy structure refining

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] The alloy system used in this comparative example is still 20%Mg2Si / A356-1.5%Fe alloy. First select a slope serpentine channel with 6 curves, the angle of the curve is 100°, the angle of the slope is 40°, the straight line length of the slope serpentine channel is 1000 mm, and the frequency of the vibration platform is set to 200 Hz. The alloy smelting process is the same as that of Comparative Example 1. After slag removal and refining, the alloy melt is poured into a feeding hopper preheated at 200°C. flow, and finally fall into a metal mold preheated at 200°C, and the alloy melt is solidified and cooled to obtain an ingot.

[0054] Samples were taken from the ingot for scanning electron microscope (SEM) structure observation, the morphology of the alloy phase was analyzed, its size was measured, and tensile mechanical properties were tested. The SEM organization of this comparative example gained is as Figure 7 It can be seen from the figure that its organizatio...

Embodiment 2

[0058] The alloy system used in this comparative example is still 20%Mg2Si / A356-1.5%Fe alloy. First select a slope serpentine channel with 4 curves, the angle of the curve is 125°, the angle of the slope is 50°, the straight line length of the slope serpentine channel is 1000 mm, and the frequency of the vibration platform is set to 180 Hz. The alloy smelting process is the same as that of Comparative Example 1. After slag removal and refining, the alloy melt is poured into a feeding hopper preheated at 200°C. flow, and finally fall into a metal mold preheated at 200°C, and the alloy melt is solidified and cooled to obtain an ingot.

[0059]Samples were taken from the ingot for scanning electron microscope (SEM) structure observation, the morphology of the alloy phase was analyzed, its size was measured, and tensile mechanical properties were tested. The SEM structure obtained in this comparative example is similar to that of Example 1. Randomly select 100 primary Mg 2 Si...

Embodiment 3

[0062] The alloy system used in this comparative example is still 20%Mg2Si / A356-1.5%Fe alloy. First select a slope serpentine channel with 6 curves, the angle of the curve is 100°, the angle of the slope is 50°, the straight line length of the slope serpentine channel is 1000 mm, and the frequency of the vibration platform is set to 160 Hz. The alloy smelting process is the same as that of Comparative Example 1. After slag removal and refining, the alloy melt is poured into a feeding hopper preheated at 200°C. flow, and finally fall into a metal mold preheated at 200°C, and the alloy melt is solidified and cooled to obtain an ingot.

[0063] Samples were taken from the ingot for scanning electron microscope (SEM) structure observation, the morphology of the alloy phase was analyzed, its size was measured, and tensile mechanical properties were tested. The SEM structure obtained in this comparative example is similar to that of Example 1. Randomly select 100 primary Mg 2 S...

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Abstract

The invention discloses a forming device and method for aluminum alloy structure refining. The device comprises a slope serpentine channel, a feeding funnel, a vibration platform and a matched mold. The angle of the slope serpentine channel is 30-50 degrees, and the length of a slope is 1000mm. The number of bends is 2-6. The angle of each bend is 100-150 degrees, and the vibrational frequency is100-200Hz. According to the forming technology, the serpentine slope and the vibration technology are combined, and the aluminum alloy structure can be effectively refined. Aluminum alloy melt is poured into the feeding funnel after refining and drossing. The melt is poured into the metal mold connected with the vibration casting platform after passing through the slope serpentine channel with a certain tilted angle, and then is cooled, consolidated and formed at a certain vibrational frequency.

Description

technical field [0001] The invention relates to an aluminum alloy forming process, in particular to a forming device and method for refining the structure of an aluminum alloy. Background technique [0002] Aluminum and its aluminum alloys have the advantages of easy processing, low density, high strength, good electrical conductivity and corrosion resistance, and have broad application prospects. Aluminum products are widely used in the fields of transportation, machinery and aviation industry. Aluminum has become the most consumed non-ferrous metal in the world today. The total amount of aluminum alloy scrapped by aluminum products every year accounts for about half of the total demand in the global aluminum market. The efficient recycling and reuse of scrap aluminum alloy is of great significance to the development of the aluminum alloy industry. However, a large amount of impurity elements are likely to be mixed in the recycling and remelting process of recycled alumin...

Claims

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Application Information

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IPC IPC(8): B22D1/00B22D27/08C22C1/03C22C21/02
CPCC22C1/026C22C1/03C22C21/02B22D1/007B22D27/08
Inventor 杜军黄正阳史明波何健松
Owner SOUTH CHINA UNIV OF TECH
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