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Magnesium/copper composite material and preparation process thereof

A composite material and preparation technology, applied in the direction of manufacturing tools, metal rolling, welding equipment, etc., can solve the problems of complex equipment and process, difficult quality control, large investment, etc., to achieve easy quality control, increase process difficulty, high The effect of thermal performance

Active Publication Date: 2021-11-19
CHANGSHA ADVANCED MATERIALS IND RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the equipment and process are complicated, the investment is large, the yield is low, and it is difficult to carry out quality control

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] In this example, AZ31 magnesium alloy and copper are used for compounding. Firstly, the prepared 3×150×200mm AZ31 magnesium alloy plate and copper plate, and the 0.5×150×200mm tin plate are subjected to surface sandblasting treatment to remove impurities and oil stains on the plate surface; riveting the sandblasted plate with copper Combine; put the riveted plate horizontally into the heating furnace, and ensure that the magnesium plate is on the bottom, and keep it warm at 400°C for 1h; carry out hot rolling, the reduction is 61%, and the rolling speed is 10m / min, the first time After the hot-rolled plate is kept at 400°C for 10 minutes, it is hot-rolled for the second time, with a reduction of 60%, and rolled to a thickness of about 1.5mm; after rolling, it is kept at 220°C for 2 hours for thermal diffusion annealing. When the temperature is higher than 250°C, tin has melted into a liquid state. When it is under pressure, the liquid will flow out from the opposite dir...

Embodiment 2

[0031] In this example, AZ42 magnesium alloy and copper are used for compounding. First, sandblast the surface of the prepared AZ42 magnesium alloy plate of 15×150×200mm, copper plate of 10×150×200mm, and tin plate of 0.5×150×200mm to remove impurities and oil stains on the surface of the plate; The finished plates are riveted with red copper; put the riveted plates horizontally into the heating furnace, and ensure that the magnesium plate is on the bottom, keep the temperature at 420°C for 1 hour, and carry out the first hot rolling with a reduction of 75%; the first After the first hot rolling, the second hot rolling is carried out at 420°C for 14 minutes, and the reduction is 40%; after the second hot rolling, the third hot rolling is carried out after the second hot rolling, and the reduction is 50%. Roll to a thickness of about 1.9mm; the rolling speed is 7m / min; hold at 300°C for 2h for thermal diffusion annealing.

Embodiment 3

[0033] In this example, AZ31 magnesium alloy and copper are used for compounding. First, sandblast the surface of the prepared AZ42 magnesium alloy plate and copper plate of 20×150×200mm, and the tin plate of 0.5×150×200mm to remove impurities and oil stains on the surface of the plate; rivet the plate after sandblasting with copper Combine; put the riveted plate horizontally into the heating furnace, and ensure that the magnesium plate is on the bottom, and keep it at 450°C for 1h; perform the first hot rolling, and the reduction is 65%; After holding the heat for 25 minutes, carry out the second hot rolling with a reduction of 40%; after the second hot rolling, carry out the third hot rolling after holding the heat at 450°C for 10 minutes, with a reduction of 50%, and roll to a thickness of about 4mm; rolling The speed is 15m / min; thermal diffusion annealing is carried out at 360°C for 1h.

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Abstract

The invention provides a magnesium / copper alloy composite material and a preparation process thereof. The preparation process comprises the following steps of S1, material preparation, specifically, cleaning the surfaces of to-be-compounded magnesium alloy, copper and auxiliary materials to ensure that the surfaces of the materials are free of impurities such as oxides, oil stains and the like; S2, simply combining the materials obtained in the step S1; S3, preheating in a resistance furnace; S4, enabling the material preheated in the step S3 to be subjected to primary hot rolling compounding; S5, carrying out hot rolling on the composite material obtained in the step S4 for multiple times until rolling the composite material to a required thickness; and S6, performing thermal diffusion annealing treatment on the composite material obtained in the step S5. According to the magnesium / copper composite material and the preparation process thereof, through the hot rolling compounding, the magnesium / copper alloy composite material with good combination is prepared, and the urgent requirements of products for light weight and heat conduction and heat dissipation performance can be met.

Description

technical field [0001] The invention relates to the field of composite materials and preparation, in particular to a magnesium / copper alloy composite material and a preparation process thereof. Background technique [0002] As products become more and more integrated, lightweight and portable, the requirements for thermal conductivity and heat dissipation of materials and light weight are getting higher and higher. Traditional heat conduction and heat dissipation materials are mainly copper, aluminum and their alloys. Copper and its alloys have good thermal conductivity, but their heat dissipation performance is relatively poor. Compared with copper, aluminum and its alloys have good heat dissipation performance, but the thermal conductivity Performance is not as good as copper. Some developers combined the characteristics of copper and aluminum to develop an aluminum / copper composite material, which is used as a characteristic material for electrical conduction and heat co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B1/38B21B3/00B21B47/00B21B45/00B23K20/04B23K20/233B23K20/24C22F1/06C22F1/08C21D9/00B23K103/18B23K101/18
CPCB21B1/38B21B3/00B21B47/00B21B45/004B23K20/04B23K20/233B23K20/24C22F1/06C22F1/08C21D9/0081B21B2001/386B21B2003/005B23K2103/18B23K2101/18
Inventor 刘海平肖宏超熊雯瑛王明跃黄硕康心锴
Owner CHANGSHA ADVANCED MATERIALS IND RES INST CO LTD
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