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Aluminum-based composite material with internal stress adjusting function and preparation method of aluminum-based composite material

An aluminum-based composite material and internal stress technology, applied in electrolytic coating, metal rolling, coating, etc., can solve problems such as internal stress adjustment, affecting the mechanical properties and reliability of materials, and low-stress damage of materials

Pending Publication Date: 2022-04-12
XIAN TECHNOLOGICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides an aluminum-based composite material with internal stress adjustment function and its preparation method to solve the problem that traditional coated carbon fiber-reinforced aluminum-based composite materials cannot adjust the internal stress, and the low-stress failure of the material usually occurs, which seriously affects Material mechanical properties and reliability issues

Method used

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  • Aluminum-based composite material with internal stress adjusting function and preparation method of aluminum-based composite material
  • Aluminum-based composite material with internal stress adjusting function and preparation method of aluminum-based composite material
  • Aluminum-based composite material with internal stress adjusting function and preparation method of aluminum-based composite material

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Experimental program
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Effect test

Embodiment 1

[0033] Step 1, prepare the electroplating solution for plating spiny copper / carbon nanotube composite coating: add 200g of copper sulfate; 50g of sulfuric acid; 30g of glucose; 60g of copper pyrophosphate; Fully dissolve the chemical reagent to obtain a chemical reagent solution, then add 0.8g of carbon nanotubes into 1L of the chemical reagent solution, and disperse the carbon nanotubes evenly in the chemical reagent solution through ultrasonic oscillation for 2.5 hours to obtain an electroplated spiny copper / Carbon nanotube composite coating electroplating solution.

[0034] Step 2, place the electroplating solution for preparing the electroplating thorny copper / carbon nanotube composite coating in the electroplating tank, and then connect the carbon fiber to the cathode of the power supply. In this embodiment, the carbon fiber is a bundle of carbon fibers, and the copper plate is connected to the anode of the power supply. At a current density of 300mA / dm 2 , the tempera...

Embodiment 2

[0038]Step 1, preparing the electroplating solution for electroplating the thorny copper / carbon nanotube composite coating: add 150 g of copper sulfate; 40 g of sulfuric acid; 20 g of glucose; 40 g of copper pyrophosphate; Fully dissolve the chemical reagent to obtain a chemical reagent solution, then add 0.5 g of carbon nanotubes into 1L of the chemical reagent solution, and oscillate ultrasonically for 2 hours to uniformly disperse the carbon nanotubes in the chemical reagent solution to obtain electroplated thorny copper / Carbon nanotube composite coating electroplating solution.

[0039] Step 2, place the electroplating solution for preparing the electroplating thorny copper / carbon nanotube composite coating in the electroplating tank, and then connect the carbon fiber to the cathode of the power supply. In this embodiment, the carbon fiber is carbon fiber cloth, and the copper plate is connected to the anode of the power supply. At a current density of 150mA / dm 2 , the t...

Embodiment 3

[0043] Step 1, preparing the electroplating solution for electroplating the thorny copper / carbon nanotube composite coating: add 300 g of copper sulfate; 70 g of sulfuric acid; 50 g of glucose; 90 g of copper pyrophosphate; Fully dissolve the chemical reagent to obtain a chemical reagent solution, then add 1 g of carbon nanotubes into 1L of the chemical reagent solution, and oscillate ultrasonically for 3 hours to uniformly disperse the carbon nanotubes in the chemical reagent solution to obtain an electroplated thorn-shaped copper / carbon Electroplating solution for nanotube composite coating.

[0044] Step 2, place the electroplating solution for preparing the electroplating thorny copper / carbon nanotube composite coating in the electroplating tank, and then connect the carbon fiber to the cathode of the power supply. In this embodiment, the carbon fiber is a bundle of carbon fibers, and the copper plate is connected to the anode of the power supply. At a current density of 4...

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Abstract

The invention relates to the technical field of composite material preparation, in particular to an aluminum-based composite material with an internal stress adjusting function and a preparation method of the aluminum-based composite material. The preparation method comprises the following steps: (1) preparing electroplating liquid for electroplating the spiny copper / carbon nano tube composite coating, namely putting copper sulfate, sulfuric acid, glucose, copper pyrophosphate and polyethyleneimine into distilled water, mechanically stirring, and adding a carbon nano tube into the solution; (2) electroplating a spiny copper / carbon nanotube composite coating on the surface of the carbon fiber; (3) the carbon fibers and the aluminum sheets are laid and stacked; and (4) extrusion casting is conducted. The spiny copper / carbon nanotube composite coating is coated on the surface of the carbon fiber, so that the wettability between the carbon fiber and an aluminum matrix is improved, the internal stress of the aluminum matrix composite material can be regulated, and excellent mechanical property, safety and reliability are shown.

Description

technical field [0001] The invention relates to the technical field of composite material preparation, in particular to an aluminum-based composite material with an internal stress adjustment function and a preparation method thereof. Background technique [0002] Carbon fiber is a fibrous carbonaceous material with many excellent properties. Its tensile strength is generally above 1600MPa, and its elastic modulus is above 230GPa; its density is only 1 / 4 of steel and 2 / 3 of aluminum; in inert gas or Under vacuum conditions, the service temperature is as high as 2000°C; the properties will basically not change after soaking in high-concentration hydrochloric acid or sulfuric acid solution for 200 days. Therefore, carbon fiber is often used as a reinforcement to improve the comprehensive performance of aluminum matrix composites. Carbon fiber-reinforced aluminum matrix composites have excellent properties such as light weight, high specific strength and specific stiffness, lo...

Claims

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Application Information

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IPC IPC(8): C25D3/38C25D15/00B22D18/02B21B1/38
CPCY02E60/10
Inventor 吕钊钊董晟全刘娇马智恩肖泽元聂松
Owner XIAN TECHNOLOGICAL UNIV