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Ultrasonic-assisted lost foam casting device for magnesium-aluminum bimetal casting and application

A lost foam casting and ultrasonic-assisted technology, applied in the field of metal casting manufacturing, can solve the problems of poor process stability of lost foam casting solid-liquid composite technology, and achieve the effects of reducing the heating rate, promoting the diffusion of elements, and refining the structure.

Active Publication Date: 2021-09-03
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In view of the above defects or improvement needs of the prior art, the present invention provides a method for ultrasonically assisted lost foam casting of magnesium-aluminum bimetallic castings. The role of impurity removal, thereby solving the technical problem of poor stability of the lost foam casting solid-liquid composite technology

Method used

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  • Ultrasonic-assisted lost foam casting device for magnesium-aluminum bimetal casting and application
  • Ultrasonic-assisted lost foam casting device for magnesium-aluminum bimetal casting and application
  • Ultrasonic-assisted lost foam casting device for magnesium-aluminum bimetal casting and application

Examples

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Effect test

Embodiment 1

[0051] An apparatus for ultrasonically assisted lost foam casting of magnesium-aluminum bimetallic castings such as Figure 1-2 As shown, it includes a lost foam casting composite model 1, an ultrasonic vibration assembly 2 and a sand box 3. The lost foam casting composite model includes a gating system 101, a casting model 102 connected to the gating system 101, and a solid embedded casting model 102. Body 103;

[0052] The ultrasonic vibration assembly 2 includes a connector 201, a transducer holder 202 detachably connected to the connector 201, an ultrasonic transducer 203 detachably connected to the transducer holder 202, and an ultrasonic transducer 203 An electrically connected ultrasonic generator 204, the connector 201 is fixedly connected to the solid inlay 103;

[0053] The sand box 3 includes a box body 301 and a vibrating table 304 located below the box body 301 , the composite model 1 and the ultrasonic vibration assembly 2 are located in the box body 301 and can...

Embodiment 2

[0059] The difference between this embodiment and Embodiment 1 is that two ultrasonic vibration components 2 are provided, such as Figure 3-4 As shown, the solid inlay 103 is a geometric body with a regular shape, and a plurality of ultrasonic vibration components 2 are arranged symmetrically along the geometric body.

Embodiment 3

[0061] The difference between this embodiment and Embodiment 2 is that the ultrasonic generator 204 includes a master ultrasonic transducer 207 and two slave ultrasonic transducers 208, and the slave ultrasonic transducer 208 uses the master ultrasonic transducer The device 207 is arranged axisymmetrically. Preferably, the included angle between the slave ultrasonic transducer 208 and the master ultrasonic transducer 207 is 45-75°.

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Abstract

The invention belongs to the technical field of metal casting manufacturing, and particularly relates to an ultrasonic-assisted lost foam casting device for a magnesium-aluminum bimetal casting and application. The ultrasonic-assisted lost foam casting device for the magnesium-aluminum bimetal casting comprises a lost foam casting composite model, an ultrasonic vibration assembly and a sand box, and the lost foam casting composite model comprises a pouring system, a casting model connected with the pouring system and a solid inlay embedded into the casting model; and the ultrasonic vibration assembly comprises a connector, a transducer fixing seat detachably connected with the connector, an ultrasonic transducer detachably connected with the transducer fixing seat and an ultrasonic generator electrically connected with the ultrasonic transducer. According to the device, an oxidation film on the surface of an aluminum inlay can be broken and removed through the ultrasonic cavitation effect, the inclusion defect at the interface is eliminated, the effects of dendritic crystal breaking and grain refining can be achieved, and therefore the structure performance of the magnesium-aluminum bimetallic material is improved.

Description

technical field [0001] The invention belongs to the technical field of metal casting manufacturing, and in particular relates to a device and application of an ultrasonic-assisted lost foam casting magnesium-aluminum bimetallic casting. Background technique [0002] With the rapid development of modern industry, automobiles, weapons and aerospace and other fields have put forward higher and higher requirements for the lightweight, structural integration and comprehensive performance of materials. The use of a single material has become increasingly difficult to meet the requirements for parts. The requirements for comprehensive performance are getting higher and higher. By compounding magnesium alloy and aluminum alloy to prepare magnesium-aluminum bimetallic materials and parts, the advantages of magnesium alloy and aluminum alloy can be combined, and the performance of aluminum and magnesium can be complementary to better meet the needs of engineering applications. [000...

Claims

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Application Information

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IPC IPC(8): B22C9/04B22D19/16B22D27/08
CPCB22C9/04B22D19/16B22D27/08
Inventor 蒋文明管峰王俊龙李广宇张政樊自田
Owner HUAZHONG UNIV OF SCI & TECH
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