Combined composite brake disc, preparation method and application

A technology of composite materials and aluminum-based composite materials, which is applied in the field of combined composite brake discs and its preparation, and can solve problems such as high wear, severe wear, and low operating temperature

Active Publication Date: 2017-08-29
HUNAN SHIXIN NEW MATERIALS CO LTD
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

The aluminum matrix composite material has good thermal conductivity and can realize rapid cooling of the plate body. Adding ceramic particles to form a ceramic reinforced aluminum matrix composite material can reduce weight, but its service temperature is low, and the maximum service temperature is not higher than 400 ° C. The surface will experience severe wear, the amount of wear is higher than that of the steel disc

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  • Combined composite brake disc, preparation method and application
  • Combined composite brake disc, preparation method and application
  • Combined composite brake disc, preparation method and application

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Embodiment Construction

[0112]The technical solutions of the present invention are clearly and completely described below in conjunction with the accompanying drawings of the present invention. Apparently, the described embodiments are only a part of the technical solutions recorded in the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0113] Referring to Figures 2 to 4, the combined composite train brake disc includes a carbon-ceramic composite material friction disc 1 and a gradient aluminum-based composite material connecting support disc 2; The disk 1 includes several bolt holes 3; the gradient aluminum matrix composite material connection support disk 2 is composed of a high silicon carbide aluminum matrix composite material disk 2-1 and a low silicon carbide aluminum matrix composite material disk...

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Abstract

The invention relates to a combined composite brake disc, a preparation method and application, and belongs to the technical field of development of special brake discs. The combined composite brake disc comprises a friction disc body (1) and a connecting and supporting disc body (2). The friction disc body (1) is of a carbon-ceramic composite, and the connecting and supporting disc body (2) is of a gradient aluminum matrix composite compounded in a hot-pressing mode. The combined composite brake disc comprises the friction disc body (1) of the carbon-ceramic composite and the connecting and supporting disc body (2) of the gradient aluminum matrix composite. The friction disc body (1) of the carbon-ceramic composite and the connecting and supporting disc body (2) of the gradient aluminum matrix composite are connected into a whole through riveting. The brake disc designed in the invention is obviously longer than existing products in service life when being applied to high-speed trains.

Description

technical field [0001] The invention relates to a combined composite material brake disc, its preparation method and application; it belongs to the technical field of special brake disc development. Background technique [0002] The brake disc of a high-speed train is one of the most critical components in the brake device. As the speed of the train increases and the operating conditions of the brake are severe, the huge thermal load and thermal shock of the brake will produce a large temperature gradient, resulting in the formation of a huge thermal stress in the brake disc. Therefore, it is required that the brake disc material not only has stable and uniform friction performance and high wear resistance, but also must have high thermal fatigue performance and thermal conductivity, low elastic modulus and thermal expansion coefficient, so that braking The heat can be dissipated quickly to reduce the high thermal stress caused by the rapid cooling and heating of the fricti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D65/12C22C21/02C22C32/00C22C21/10C22C21/00C22C1/05C22C1/10
CPCC22C1/05C22C21/00C22C21/02C22C21/10C22C32/0063F16D65/12F16D65/125F16D2065/132F16D2065/1344F16D2200/003F16D2200/0047F16D2200/0082F16D2250/0007F16D2250/0023
Inventor 李鹏涛
Owner HUNAN SHIXIN NEW MATERIALS CO LTD
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