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Bimetal compounding method

A bimetal and metal technology, applied in the field of bimetal composite casting, can solve the problems of low interface bonding strength, difficult control of solidification time, and many casting interface defects, so as to promote metallurgical bonding, promote the use value, and avoid coarse grains Effect

Active Publication Date: 2021-11-12
QILU UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The technical task of the present invention is to provide a bimetal composite method to solve the problems of low interface bonding strength, difficult solidification time control and many casting interface defects in the bimetal casting composite process

Method used

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Experimental program
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Effect test

Embodiment 1

[0050] as attached figure 1 and 2 Shown, the bimetal composite method of the present invention, the concrete steps of this method are as follows:

[0051] S1. Perform surface treatment on the surface of the solid metal to be composited;

[0052] S2. Place the solid metal to be compounded in the mold, fix the solid to be compounded on the ultrasonic vibration tool head, and apply ultrasonic vibration to the solid metal to be compounded;

[0053] S3, turn on the ultrasonic vibration device, so that the ultrasonic vibration tool head and the solid metal to be composited generate ultrasonic vibration;

[0054] S4. Melting another metal to be compounded to 10-100°C above the liquidus line, and then pouring it into the mold in step S2, the molten metal solution is compounded with the fixed metal under the action of ultrasonic vibration;

[0055] S5. After the metal solution is solidified, turn off the ultrasonic vibration device, cool to room temperature, and obtain a bimetallic ...

Embodiment 2

[0076] In this embodiment, 6061 aluminum alloy is used as the solid metal matrix material, and the size is 60×50×2mm, as follows:

[0077] (1), the aluminum alloy base plate 2 is perforated, and polished on 400# sandpaper;

[0078] (2), sequentially cleaning the oxide film on the surface of the aluminum alloy substrate plate 2 with 10% hydrochloric acid solution and 10% sodium hydroxide solution, then cleaning with distilled water and drying for later use;

[0079] (3), mold 4 is heated to 200 ℃ for 30 minutes;

[0080] (4) Fix the cleaned aluminum alloy base plate 2 on the ultrasonic horn 1 by fastening nuts 6 and bolts 7, place it vertically in the mold 4, and select the vibration direction to be perpendicular to the joint surface to vibrate;

[0081] (5) Set the ultrasonic power to 960W, the vibration frequency to 24KHz, turn on the ultrasonic vibration device 5, apply ultrasonic vibration to the aluminum alloy base plate 2, and then cast the liquid AC4B aluminum alloy 3 a...

Embodiment 3

[0085] In this embodiment, 7075 aluminum alloy is used as the solid metal matrix material, and the size is 60×50×2mm, as follows:

[0086] (1), the 7075 aluminum alloy base plate 2 is perforated, and polished on 400# sandpaper;

[0087] (2), sequentially cleaning the oxide film on the surface of the aluminum alloy substrate plate 2 with 10% hydrochloric acid solution and 10% sodium hydroxide solution, then cleaning with distilled water and drying for later use;

[0088] (3), mold 4 is heated to 200 ℃ for 30 minutes;

[0089] (4) Fix the cleaned aluminum alloy base plate 2 on the ultrasonic horn 1 by fastening nuts 6 and bolts 7, place it vertically in the mold 4, and select the vibration direction to be perpendicular to the joint surface to vibrate;

[0090] (6) Set the ultrasonic power to 3000W, the vibration frequency to 20KHz, turn on the ultrasonic vibration device 5, apply ultrasonic vibration to the 7075 aluminum alloy base plate 2, and then cast the liquid A356 aluminu...

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Abstract

The invention discloses a bimetal compounding method, and belongs to the technical field of bimetal composite casting. The method aims to solve the technical problems of low interface bonding strength, difficulty in control of solidification time and many casting interface defects in the bimetal casting compounding process. According to the technical scheme, the method comprises the following specific steps that S1, the surface of solid metal to be compounded is subjected to surface treatment; S2, the solid metal to be compounded is placed in a mold, a solid to be compounded is fixed to an ultrasonic vibration tool head, and ultrasonic vibration is applied to the solid metal to be compounded; S3, an ultrasonic vibration device is started, and the ultrasonic vibration tool head and the solid metal to be compounded generate ultrasonic vibration; S4, another kind of metal to be compounded is molten to 10-100 DEG C above the liquidus and then poured into the mold in the step S2, and the molten metal solution is compounded with the solid metal under the action of ultrasonic vibration; and S5, after the metal solution is solidified, the ultrasonic vibration device is stopped, and the product is cooled to room temperature to obtain a bimetallic composite material.

Description

technical field [0001] The invention relates to the technical field of bimetal composite casting, in particular to a bimetal composite method. Background technique [0002] With the rapid development of modern industry, the comprehensive performance requirements of various parts for metal materials are getting higher and higher, and a single metal material has gradually been unable to meet the performance requirements of different parts of complex parts, such as: the inner and outer surfaces of rolls, motor rotors are different Parts, the inner and outer walls of the cylinder block of the engine have different material requirements for the material. In order to solve these needs, bimetallic materials are widely used in the field of industrial manufacturing. Bimetallic composite materials are prepared by using a certain composite process to achieve a firm metallurgical bond between two metal materials with different physical, chemical and mechanical properties on the interfac...

Claims

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Application Information

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IPC IPC(8): B22D19/16B22D27/08
CPCB22D19/16B22D27/08
Inventor 王致明姜其智
Owner QILU UNIV OF TECH
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