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Aluminum base titanium surface brake disc for high-speed heavy-duty train and forming method thereof

A technology for heavy-duty trains and brake discs, applied in the direction of brake discs, brake types, brake components, etc., can solve problems such as wear resistance and poor high temperature resistance, and achieve improved wear resistance and high temperature resistance, Good load-bearing effect and the effect of ensuring driving safety

Active Publication Date: 2021-01-08
HUNAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies in the brake discs of high-speed and heavy-duty trains in the prior art, the purpose of the present invention is to provide an aluminum-based titanium-faced brake disc for high-speed and heavy-duty trains, which solves the problem of wear resistance and wear resistance of existing aluminum-based brake discs. The problem of poor high temperature resistance, the preparation of a high comprehensive performance aluminum-based titanium surface brake disc

Method used

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  • Aluminum base titanium surface brake disc for high-speed heavy-duty train and forming method thereof
  • Aluminum base titanium surface brake disc for high-speed heavy-duty train and forming method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0035] like figure 1As shown, the present embodiment provides an aluminum-based titanium surface brake disc for high-speed heavy-duty trains, including a brake disc base 1, the brake disc base of the present invention is an aluminum alloy brake disc base, and the aluminum alloy brake disc base A layer of wear-resistant layer 3 is also compounded on it. In this embodiment, the thickness of wear-resistant layer 3 can be 4-10mm, and the thickness of this embodiment is preferably 6mm; the wear-resistant layer 3 of this embodiment is made of titanium alloy material. In this embodiment Among them, the titanium alloy material is composed of the following alloy components in mass percentage: Al: 6%, V: 4%, ceramic particles: 5%, Ti balance, the sum of all the above alloy components is 100%; the ceramic particles are preferably WC, Its particle size is 80 mesh. The preparation method of the above-mentioned titanium alloy material is as follows: add raw materials other than ceramic par...

Embodiment 2

[0042] This embodiment provides an aluminum-based titanium surface brake disc for high-speed heavy-duty trains. Its structure is the same as that of Embodiment 1. The difference from Embodiment 1 is that the titanium alloy material used for the wear-resistant layer 3 is made of the following mass: Percentage alloy composition: Al: 2%, V: 5%, ceramic particles: 3%, Ti balance, the sum of all the above alloy components is 100%; the ceramic particles are preferably SiC, and their particle size is 50 mesh.

[0043] For the forming method of the above-mentioned aluminum-based titanium surface brake disc for high-speed and heavy-duty trains, refer to the steps in Example 1.

Embodiment 3

[0045] This embodiment provides an aluminum-based titanium surface brake disc for high-speed heavy-duty trains. Its structure is the same as that of Embodiment 1. The difference from Embodiment 1 is that the titanium alloy material used for the wear-resistant layer 3 is made of the following mass: Percentage alloy composition: Al: 5%, V: 3%, ceramic particles: 1%, Ti balance, the sum of all the above alloy components is 100%; the ceramic particles are preferably Al 2 o 3 , and its particle size is 150 mesh.

[0046] For the forming method of the above-mentioned aluminum-based titanium surface brake disc for high-speed and heavy-duty trains, refer to the steps in Example 1.

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Abstract

The invention discloses an aluminum-based titanium surface brake disc for a high-speed heavy haul train and a molding method thereof. The aluminum-based titanium surface brake disc comprises a brake disc base body, wherein the brake disc base body is an aluminum alloy brake disc base body, a wear-resistant layer is compounded on the aluminum alloy brake disc base body, the wear-resistant layer ismade from a titanium alloy material, a transition layer is further arranged between the aluminum alloy brake disc base body and the wear-resistant layer, and metallurgical bonding is carried out on the wear-resistant layer, the transition layer and the aluminum alloy brake disc base body by adopting an injection molding 3D printing technology; and the wear-resistant layer is 4-10 mm in thickness,and the transition layer is 1-4 mm in thickness. By printing a ceramic particle reinforced titanium alloy brake surface on the aluminum alloy base body with light weight, high strength and great heatdissipation, the wear resistance and the high temperature resistance of the brake disc can be effectively improved, and the aluminum-based titanium surface brake disc for the high-speed heavy haul train, with high comprehensive properties, is prepared.

Description

technical field [0001] The invention relates to the technical field of rail transportation, more specifically, to an aluminum-based titanium surface brake disc for high-speed and heavy-duty trains and a forming method thereof. Background technique [0002] The brake disc is an important part of the high-speed train braking system and an important guarantee for the safe running of the high-speed train. In recent years, with the rapid development of my country's rail transit, high-speed trains are gradually developing in the direction of high speed, heavy load, and light weight, which puts forward higher requirements for the performance of high-speed train braking systems. In the process of high-speed braking, the huge thermal load of the brake makes the brake disc produce a large temperature gradient, causing extremely high thermal stress; the brake disc bears the centrifugal force of high-speed rotation and the friction of the brake pad Therefore, it is required to have suf...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C21/16C22C21/00C22C14/00C22C1/03C22C1/10C22C32/00B22F3/115B22F5/00F16D65/12F16D69/02B33Y10/00B33Y80/00B33Y70/10
CPCB22F3/115B22F5/00B22F2999/00B33Y10/00B33Y70/00B33Y80/00C22C1/026C22C1/03C22C1/10C22C14/00C22C21/003C22C21/16C22C32/0036C22C32/0052F16D65/125F16D69/027F16D2200/0026F16D2200/003F16D2200/0082B22F2201/02B22F2201/11
Inventor 范才河范语楠阳建君欧玲陈喜红陈刚
Owner HUNAN UNIV OF TECH