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Preparation method of high performance magnesium-based composite material component

A composite component and high-performance technology, applied in manufacturing tools, casting molding equipment, metal processing equipment, etc., can solve problems such as difficult control, complicated preparation process, easy agglomeration, etc., and achieve no shrinkage cavity, advanced technology, and accurate data informative effect

Active Publication Date: 2020-06-26
ZHONGBEI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the current research results show that the performance of the composite material has not achieved the expected results. The main reasons are: ① poor wettability between graphene and magnesium matrix, easy to agglomerate; ② graphene and magnesium matrix are prone to adverse interface reactions; ③ preparation process complex, difficult to control
Therefore, graphene-reinforced magnesium-based composites have not been practically applied in the field of high-performance component preparation technology.

Method used

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  • Preparation method of high performance magnesium-based composite material component
  • Preparation method of high performance magnesium-based composite material component
  • Preparation method of high performance magnesium-based composite material component

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Embodiment Construction

[0071] The present invention will be further described below in conjunction with accompanying drawing:

[0072] figure 1 As shown, it is the surface treatment of the magnesium alloy plate and the state diagram of carboxylated graphene sprayed on the surface of the magnesium alloy plate after surface treatment; the whole set of equipment includes the main control cabinet 1, the surface treatment room 2, and the surface spraying room 3;

[0073] The main control cabinet 1 controls the working state of the surface treatment chamber 2 through the first cable 4 and the second cable 5 on the one hand, and controls the working state of the surface spraying chamber 3 through the first cable 4 and the second cable 5 on the other hand;

[0074] A polyvinyl alcohol liquid storage tank 25 and a deionized water liquid storage tank 26 are respectively provided under the main control cabinet 1; a polyvinyl alcohol liquid inlet valve 27, a polyvinyl alcohol discharge valve, Liquid valve 28; ...

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Abstract

The invention relates to a preparation method of a high performance magnesium-based composite material component. In order to solve the problems that graphene as a reinforcing body is poor in wettability to a magnesium matrix and is easy to agglomerate to lead to a bad interface reaction easily, the preparation process is complex and is hard to control and the like, a high performance magnesium-based composite material component is prepared by the following steps of carrying out surface treatment on a magnesium alloy panel, spraying carboxylated graphene to the surface of the magnesium alloy panel after surface treatment, carrying out hot pressed sintering, crushing the magnesium alloy panel into magnesium alloy particles and carrying out semi-solid state indirect squeeze casting forming by taking carboxylated graphene as the reinforcing body of the magnesium-based composite material. The preparation method is advanced in process and detailed and accurate in data, and the prepared magnesium-based composite material component is free of shrinkage cavity and shrinkage porosity defect inside, good in tissue compactness, fine in grain, spherical and approximately spherical. The carboxylated graphene is uniformly dispersed in the matrix and good in interfacial adhesion. The tensile strength of the component reaches 335 Mpa, the ductility reaches 5.6% and the hardness reaches 102HV,and the preparation method is the advanced preparation method of the high performance magnesium-based composite material component.

Description

technical field [0001] The invention relates to a method for preparing a high-performance magnesium-based composite material component, and belongs to the technical field of non-ferrous metal composite material component preparation. Background technique [0002] Magnesium-based composites have the advantages of high specific strength, high specific modulus, low density and good thermal stability, as well as good damping performance and electromagnetic shielding performance, and have become one of the research hotspots in the field of material science. Magnesium-based composites consist of a magnesium matrix, a reinforcement, and an interface region. At present, ceramic particles are often used as reinforcements in the design and preparation of magnesium matrix composites. However, most of the ceramic particles are micron-sized, and the dispersion strengthening effect is limited; at the same time, the interface between the ceramic particles and the magnesium matrix is ​​gen...

Claims

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Application Information

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IPC IPC(8): B22D17/00B22C3/00B22D17/20
CPCB22C3/00B22D17/007B22D17/20
Inventor 陈利文赵宇宏李利民李沐奚侯华孙晓平景舰辉
Owner ZHONGBEI UNIV
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