A kind of preparation method of lightweight aluminum matrix composite material

An aluminum-based composite material and lightweight technology, applied in the field of aluminum materials, can solve the problems of increasing the total weight of the vehicle, poor safety performance, high vehicle wear, etc., and achieve the effect of light weight, light specific gravity and unique wear resistance

Active Publication Date: 2019-05-14
河南瀚银光电科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the commonly used brake discs are monolithic cast iron materials at present, and there are the following problems in practical applications. 1. The mass is large, which increases the total weight of the car, which is not conducive to the development of energy saving and emission reduction; 2. The wear resistance is poor, and the car is running After a certain mileage, the wear degree is high, and it cannot be used continuously; 3. The high temperature resistance is poor, and the heat generated by friction during the braking process changes the strength of the brake disc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A method for preparing a lightweight aluminum-based composite material, the preparation steps of which are as follows:

[0031] Step 1, put nano silicon dioxide into absolute ethanol, stir evenly to form a sol;

[0032] Step 2, adding the silicone resin and foaming agent to the sol solution and stirring evenly to form a mixed solution, adding alumina and aluminum powder, stirring evenly to form a suspension concentrate;

[0033] Step 3, ultrasonically reacting the suspension concentrate, and then putting it into a mold for low-temperature curing to form an aluminum structure;

[0034] Step 4, putting the aluminum structure into a muffle furnace for heating and sintering for 3 hours, and then washing with alcohol after natural cooling to obtain an aluminum foam structure;

[0035] Step 5, adding silicon carbide powder into water, adding dispersant and phenolic resin to form a suspension viscous liquid;

[0036] Step 6, put the aluminum foam structure into the suspensio...

Embodiment 2

[0049] A method for preparing a lightweight aluminum-based composite material, the preparation steps of which are as follows:

[0050] Step 1, put nano silicon dioxide into absolute ethanol, stir evenly to form a sol;

[0051] Step 2, adding the silicone resin and foaming agent to the sol solution and stirring evenly to form a mixed solution, adding alumina and aluminum powder, stirring evenly to form a suspension concentrate;

[0052] Step 3, ultrasonically reacting the suspension concentrate, and then putting it into a mold for low-temperature curing to form an aluminum structure;

[0053] Step 4, putting the aluminum structure into a muffle furnace for sintering at elevated temperature for 5 hours, and washing with alcohol after natural cooling to obtain an aluminum foam structure;

[0054] Step 5, adding silicon carbide powder into water, adding dispersant and phenolic resin to form a suspension viscous liquid;

[0055] Step 6, put the aluminum foam structure into the su...

Embodiment 3

[0068] A method for preparing a lightweight aluminum-based composite material, the preparation steps of which are as follows:

[0069] Step 1, put nano silicon dioxide into absolute ethanol, stir evenly to form a sol;

[0070] Step 2, adding the silicone resin and foaming agent to the sol solution and stirring evenly to form a mixed solution, adding alumina and aluminum powder, stirring evenly to form a suspension concentrate;

[0071] Step 3, ultrasonically reacting the suspension concentrate, and then putting it into a mold for low-temperature curing to form an aluminum structure;

[0072] Step 4, putting the aluminum structure into a muffle furnace for heating and sintering for 4 hours, and then washing with alcohol after natural cooling to obtain an aluminum foam structure;

[0073] Step 5, adding silicon carbide powder into water, adding dispersant and phenolic resin to form a suspension viscous liquid;

[0074] Step 6, put the aluminum foam structure into the suspensio...

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PUM

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Abstract

The invention relates to a preparation method of a lightweight aluminum-based composite material. Aluminum chips and alumina are dissolved in a nano-silica sol to form a stable suspension, and then ultrasonically reacted and solidified at low temperature, and then sintered to obtain an aluminum alloy. The bubble structure is soaked in the silicon carbide phenolic resin suspension for several times, and finally activated at low temperature to obtain the aluminum matrix composite material. The material of the invention not only has good processing performance, but also has unique wear resistance, high temperature resistance, high thermal conductivity and light specific gravity.

Description

technical field [0001] The invention belongs to the technical field of aluminum materials and relates to a preparation method of lightweight aluminum-based composite materials. Background technique [0002] China's car consumption accounts for an increasing proportion of the world. As the world's relatively well-known large companies compete to enter the Chinese market, which has brought huge challenges to domestically produced cars, the domestic auto industry is paying more and more attention to independent research and development, especially the direction of energy saving and emission reduction. Lightweight is one of the effective ways for automobiles to achieve energy saving and emission reduction. As a component that plays an important role in driving safety, brake discs are gradually attracting attention to their light weight. A lightweight brake disc should not only have good thermal conductivity, but also have a high and stable coefficient of friction and wear resis...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F3/11B22F3/26
CPCB22F3/1125B22F3/26B22F1/103
Inventor 祝艳华
Owner 河南瀚银光电科技股份有限公司
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