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Aluminum alloy composite and engine cover plate made of same

A technology of engine cover and composite materials, which is applied in the field of aluminum alloy composite materials, can solve the problems of poor shockproof and noise-proof effects, and achieve superior shock-absorbing and noise-reducing performance and obvious effects of shock-reducing and noise-reducing effects

Inactive Publication Date: 2012-12-12
JIANGMEN DACHANGJIANG GROUP CO LTD
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Problems solved by technology

[0005] In order to overcome the defects of poor anti-vibration and anti-noise effects of engine materials in the prior art, the purpose of the present invention is to provide a high-damping aluminum alloy composite material, which has good mechanical properties and meets the application requirements of the engine

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  • Aluminum alloy composite and engine cover plate made of same

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Embodiment Construction

[0018] refer to figure 1 , the present invention will be further described below in conjunction with accompanying drawing and embodiment.

[0019] In the aluminum alloy composite material of the present invention, discontinuous closed holes 2 are evenly distributed inside the aluminum alloy matrix 1, the diameter of the holes 2 is less than 3.5mm, and there are one or more refractory fibers 3 in the holes 2, and the refractory fibers 3 are preferably Aluminum silicate fibers or graphite fibers that are resistant to high temperatures and incompatible with aluminum alloys can be in the form of strips or particles; due to the shape relationship of the refractory fibers 3, the two ends of the refractory fibers 3 It is connected to the inner wall of the hole 2, or one end of the refractory fiber 3 is connected to the inner wall of the hole 2, and the other end is suspended in the hole 2.

[0020] The production process of the aluminum alloy composite material of the present invent...

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Abstract

The invention discloses an aluminum alloy composite which comprises an aluminum alloy base body. Closed holes are irregularly uniformly distributed in the aluminum alloy base body. Fireproof fibers are arranged in the holes of the aluminum alloy base body. Damping of the aluminum alloy composite is improved by the aid of the holes and the fireproof fibers therein, and damping and noise reduction are realized. Further, the invention further discloses an engine cover plate made of the aluminum alloy composite. The engine cover plate has higher mechanical performance and excellent damping and noise reduction effects.

Description

technical field [0001] The invention relates to an aluminum alloy composite material, and at the same time relates to an engine cover plate made of the material. Background technique [0002] The hole damping mechanism is a method that adds some holes inside the material, so that the vibration or sound response will be significantly attenuated after passing through the holes during propagation, and finally the material damping will be increased. At present, the hole damping mechanism has become an important means for the development of high damping materials. For example, the honeycomb aluminum alloy that has been applied in the architectural decoration and packaging industries is mainly a honeycomb core material with holes in the middle of the aluminum alloy material, so that the energy It attenuates when passing through the honeycomb core material in the middle. The honeycomb aluminum alloy has the characteristics of fire prevention, heat preservation, sound insulation, an...

Claims

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Application Information

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IPC IPC(8): C22C21/00C22C1/08C22C49/06C22C101/06C22C101/10
Inventor 黄芳亮林健明
Owner JIANGMEN DACHANGJIANG GROUP CO LTD
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