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Aluminum alloy/aluminum alloy-ceramic combined automobile brake disc and preparation method thereof

A technology of aluminum alloy and brake disc, which is applied in the direction of brake disc, brake type, brake components, etc. The aluminum alloy matrix has low bonding strength, and the ceramic particles are difficult to disperse uniformly, so as to achieve the effect of reliable operation, consistent heat treatment process, and improved bonding strength.

Pending Publication Date: 2022-01-14
YULIN NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, the main technical research direction is to directly mix aluminum alloy and ceramic materials and then cast them. Due to the difference in specific gravity between the ceramic and the aluminum alloy matrix, it is difficult to disperse the ceramic particles evenly, and the bonding strength between the ceramic and the aluminum alloy matrix is ​​not good. High, easy to fatigue and fall off under thermal friction conditions, the structural strength and mass production quality reliability of aluminum alloy ceramic composite brake discs are not ideal

Method used

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  • Aluminum alloy/aluminum alloy-ceramic combined automobile brake disc and preparation method thereof
  • Aluminum alloy/aluminum alloy-ceramic combined automobile brake disc and preparation method thereof
  • Aluminum alloy/aluminum alloy-ceramic combined automobile brake disc and preparation method thereof

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preparation example Construction

[0036] A method of preparing a car brake disc of a carbon alloy / aluminum alloy-ceramic combination of the present invention includes the following preparation steps:

[0037] (1) Aluminum, silicon, copper, magnesium, zinc, manganese, chromium, nickel, zinc, manganese, chromium, nickel, zinc, manganese, chromium, nickel, and zirconium, and the aluminum alloy powder is obtained after melting, refining, aerosol.

[0038] Among them, the melting temperature is 680 to 750 ° C, the resulting aluminum alloy powder particle size is -100. (2) The aluminum alloy powder obtained from which to (1) obtained by pressing the step (1) is mixed with the composite powder. Among them, the ceramic ball is used as the ball mill when mixed, and the ball milling time is 2 to 6 hours, which is a vacuum and closed environment.

[0039] (3) Put the composite powder obtained by step (2) into the aluminum alloy package, and then perform a hot vacuum except for the vacuum powder package.

[0040] (4) The va...

Embodiment 1

[0046] Refer figure 1 and 2 As shown, a vehicle brake disc of a combination of an aluminum alloy / aluminum alloy-ceramic combination of the present invention includes a brake surface of the brake disc main body 1, a wear-resistant layer 2, a brake disc main body 1 For the aluminum alloy matrix material, the abrasion layer 2 consists of the following percentage material: an aluminum alloy substrate 80%, ceramic phase 20%.

[0047] Wherein, the aluminum alloy matrix consists of 91.7% aluminum, 6.5% silicon, 0.25% of magnesium, 0.3% zinc, 0.35% manganese, 0.1% chromium, nickel, 0.2% Zirconium 0.25%.

[0048] The ceramic phase consists of the following percentage of materials: the potassium hexopeptidate is 20%, 30% silicon carbide fibers, and 50% of silicon carbide ceramic particles. The diameter of the hexapeptotassium potassium peripoperate is less than 50 nanometers, and the diameter of the silicon carbide fibers is 500 nm and the diameter of the silicon carbide is 1:50, and the ...

Embodiment 2

[0061] Refer image 3 and 4 As shown, a vehicle brake disc of a combination of an aluminum alloy / aluminum alloy-ceramic combination of the present invention includes a brake surface of the brake disc main body 1, a wear-resistant layer 2, a brake disc main body 1 For the aluminum alloy matrix material, the abrasion layer 2 consists of the following percentage material: an aluminum alloy substrate 80%, ceramic phase 20%.

[0062] Wherein, the aluminum alloy matrix consists of 89.75% aluminum, 0.1% silicon, 1.4% magnesium 1.5%, zinc 6.5%, manganese 0.1%, chromium 0.1%, nickel 0.1%, 0.2% Zirconium 0.25%.

[0063] The ceramic phase consists of the following percentage of material: the potassium titanate is 10%, 20% silicon carbide fibers, and 70% of silicon carbide ceramic particles. The diameter of the hexapeptotassium potassium peripoperate is less than 50 nanometers, and the diameter of the silicon carbide fibers is 500 nm and the diameter of the silicon carbide is 1:50, and the p...

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Abstract

The invention discloses an aluminum alloy / aluminum alloy-ceramic combined automobile brake disc, and belongs to the technical field of automobile part composite materials. The automobile brake disc has the characteristics of light weight, high safety and good wear resistance. The automobile brake disc comprises a brake disc body and a wear-resistant layer imbedded on a brake surface of the brake disc body, the brake disc body is made of an aluminum alloy base material, the aluminum alloy base material is composed of, by weight, 70-92% of aluminum, 0.1-8% of silicon, 0.1-2.6% of copper, 0.1-3.0% of magnesium, 0.1-6% of zinc, 0.1-0.5% of manganese, 0.1-0.5% of chromium, 0-0.5% of nickel, 0.1-0.5% of erbium and 0.1-0.5% of zirconium, and the wear-resistant layer consists of the following materials of 70-95% of an aluminum alloy matrix and 5-30% of a ceramic phase. The invention further discloses a preparation method of the aluminum alloy / aluminum alloy-ceramic combined automobile brake disc.

Description

Technical field [0001] The present invention relates to the technical field of automotive parts composites, and more particularly, more particularly to a car brake disc for an aluminum alloy / aluminum alloy-ceramic combination; the present invention also relates to the preparation method of the brake disc. Background technique [0002] Rail transit, new energy cars have become an important high-tech industry in my country, and these transportation needs to be used. At present, the existing brake disc mainly uses cast iron products, there is a shortcoming of heavy weight, waste energy, easy rust turtle, and is not enough. Brake disc serves as an important part of the new energy vehicle to reduce energy saving, how to apply lightweight difficultless rust and high-wear-resistant aluminum alloy ceramic composites to the brake disc in the new direction of future brake discs, Japan, Many countries such as Europe and the United States are also actively developing brake discs of aluminu...

Claims

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Application Information

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IPC IPC(8): C22C21/02C22C21/10B22D17/00C22C49/06C22C49/14C22C47/14B22D19/08C21D9/00C21D1/18C22F1/043C22F1/053F16D65/12C22C101/14
CPCC22C21/02C22C21/10B22D17/00C22C49/06C22C49/14C22C47/14B22D19/085C21D9/0068C22F1/002C22F1/043C22F1/053F16D65/127F16D65/125F16D2250/0007F16D2250/0053F16D2200/003
Inventor 钟孝贤卜志强
Owner YULIN NORMAL UNIVERSITY
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