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A method for preparing mg-al-zn-mn-cu multi-component alloy by combining three-dimensional ultrasound with sound field detection

A multi-element alloy and three-dimensional ultrasonic technology, applied in the direction of manufacturing tools, casting equipment, metal processing equipment, etc., can solve the problems of insufficient ultrasonic range, achieve the control of solidified structure and application performance, large cavitation volume, and solve the problem of fast energy attenuation Effect

Active Publication Date: 2022-04-19
NORTHWESTERN POLYTECHNICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Therefore, how to make up for the defect of insufficient ultrasonic range, and then improve the effect of ultrasonic treatment and regulate the solidification structure and properties of magnesium alloys has become a technical problem to be solved urgently in this field.

Method used

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  • A method for preparing mg-al-zn-mn-cu multi-component alloy by combining three-dimensional ultrasound with sound field detection
  • A method for preparing mg-al-zn-mn-cu multi-component alloy by combining three-dimensional ultrasound with sound field detection
  • A method for preparing mg-al-zn-mn-cu multi-component alloy by combining three-dimensional ultrasound with sound field detection

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Experimental program
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Effect test

preparation example Construction

[0094] The preparation method of the present invention is simple, and can control the solidification structure and application performance of the alloy. The quality of the alloy elements in the obtained multi-component magnesium alloy is accurate and evenly distributed, and its tensile strength, tensile plasticity, hardness and damping performance are all significantly high. Castings prepared under normal casting conditions.

[0095] The present invention provides a device for preparing the Mg-Al-Zn-Mn-Cu multi-element alloy described in the above technical solution, and the device includes three ultrasonic vibration components.

[0096] In the present invention, the ultrasonic fields generated by the three ultrasonic vibration components are preferably three-dimensionally orthogonal to each other.

[0097] Such as figure 1 As shown, in one embodiment of the present invention, the device includes a push rod 1, a mold 2, an X-axis ultrasonic vibration assembly 3, a Y-axis ultr...

Embodiment 1

[0131] Such as figure 1 As shown, the device provided by the present invention includes a reverse thrust rod 1, a casting mold 2, an X-axis ultrasonic vibration assembly 3, a Y-axis ultrasonic vibration assembly 4, a Z-axis ultrasonic vibration assembly 5, a waveguide rod 6, a thermocouple 7, and an upper graphite crucible 8 , lower graphite crucible 9, quartz gas shield 10, upper high-frequency melting device 11, lower high-frequency melting device 12, upper infrared temperature measuring device 13, lower infrared temperature measuring device 14, upper plugging device 15, lower plugging device 16. Flow monitoring device 17, preheating device 18, sound field and temperature sensor and signal acquisition circuit 19, computer 20, acquisition card 21, transducer power supply 22;

[0132] The outer wall of the casting mold 2 is close to the reverse push rod 1, the X-axis ultrasonic vibration assembly 3 and the Y-axis ultrasonic vibration assembly 4 press the two mutually perpendic...

Embodiment 2

[0141] A method for preparing a Mg-Al-Zn-Mn-Cu multi-element alloy by combining three-dimensional ultrasound with sound field detection, comprising the following steps:

[0142] (1) Mix the raw materials of the master alloy and perform the first smelting to obtain the first melt; based on the mass percentage of the master alloy as 100wt.%, the raw materials of the master alloy are: 20wt.% Zn, 10wt.% Mn, 10wt.% of Cu and the rest of Al; the temperature of the first melt is 1300 ° C; the mass percentage of the multi-element magnesium alloy is 100wt.%, and the mass of the master alloy is 5.0wt.%.

[0143] Mixing 5.5wt.% Al and the rest of Mg and performing a second smelting to obtain a second melt; the temperature of the second melt is 700°C;

[0144] Mixing the first melt and the second melt for a third smelting to obtain an alloy melt; the temperature for the third smelting is 720° C., and the holding time for the third smelting is 3 minutes;

[0145] The first smelting, the s...

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Abstract

The invention provides a method for preparing a Mg-Al-Zn-Mn-Cu multi-element alloy with three-dimensional ultrasonic combined with sound field detection, which belongs to the technical field of advanced material preparation and processing. The invention uses three-dimensional mutually orthogonal ultrasonic fields to obtain a uniform and high-intensity ultrasonic field inside the melt, realizes a larger cavitation volume, solves the shortcomings of single-beam ultrasonic ultrasonic energy attenuation is fast and the range of action is small, and also solves the problem of variable The rod is limited by the deformation and dissolution caused by high temperature erosion; through the real-time monitoring of the high temperature sound field detection system, the measurement and regulation of the reaction ultrasonic energy such as sound pressure and cavitation sound intensity can be realized, and the regulation of the solidification structure and application performance of the alloy can be achieved. The results of the examples show that the α-Mg structure in the alloy prepared by the present invention is significantly refined, while the β-Mg17Al12 phase becomes dispersed and interconnected network distribution, the yield strength is 113MPa, the plastic elongation is 5.3%, and the fracture strength It is 206MPa.

Description

technical field [0001] The invention relates to the technical field of advanced material preparation and processing, in particular to a method for preparing a Mg-Al-Zn-Mn-Cu multi-element alloy by combining three-dimensional ultrasound with sound field detection. Background technique [0002] Magnesium alloy is the lightest metal structure material for industrial application. It has a series of advantages such as light specific gravity, high specific strength and specific stiffness, excellent damping, thermal conductivity, castability, strong electromagnetic shielding ability, abundant resources, and easy recycling. Therefore, in The fields such as the automobile industry, the communication electronics industry and the aerospace industry are being increasingly widely used. Among them, Mg-Al alloys are the most widely used due to their good corrosion resistance and casting performance and low cost. However, the grains of the α-Mg phase in the as-cast alloy obtained by the tra...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C1/03C22C23/02B22D27/08B22D46/00C22F3/02B22D7/00B22D7/12
CPCC22C1/03C22C23/02B22D27/08B22D46/00C22F3/02B22D7/005B22D7/12
Inventor 王建元翟薇胡亚杰魏炳波
Owner NORTHWESTERN POLYTECHNICAL UNIV
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