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A kind of die-casting preparation method of graphene-reinforced magnesium-based composite material

A composite material and graphene technology, which is applied in the field of die-casting preparation of graphene-reinforced magnesium-based composite materials, to achieve the effects of strict procedures, good metallographic structure compactness, and accurate and detailed data

Active Publication Date: 2020-10-09
ZHONGBEI UNIV
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the preparation of magnesium-based composites with graphene as a reinforcing phase is still in the research stage, and its technology needs to be further improved.

Method used

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  • A kind of die-casting preparation method of graphene-reinforced magnesium-based composite material
  • A kind of die-casting preparation method of graphene-reinforced magnesium-based composite material
  • A kind of die-casting preparation method of graphene-reinforced magnesium-based composite material

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Embodiment Construction

[0052] The present invention will be further described below in conjunction with the accompanying drawings:

[0053] figure 1 As shown, it is the state diagram of graphene magnesium alloy semi-solid slurry smelting and die-casting. The position and connection relationship of each part should be correct, and the proportions should be proportioned and operated in sequence.

[0054] The amount of chemical substances used in the preparation of smelting is determined according to a preset range, in grams, milliliters, centimeters 3 is the unit of measurement.

[0055] The smelting of graphene magnesium alloy semi-solid slurry is carried out in an electromagnetic stirring melting furnace, which is completed in the process of heating, smelting, heat preservation, electromagnetic stirring and compaction; the preparation of graphene reinforced magnesium matrix composite material is carried out in a die casting machine. It is carried out in the process of injection and pressure holdin...

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Abstract

The invention relates to a die-casting preparation method of a graphene-reinforced magnesium-based composite material. Aiming at the uneven dispersion of graphene in the magnesium alloy matrix and the difficulty in combining with the matrix, a semi-solid die-casting method is adopted. After melting, heat preservation, and electromagnetic Stirring, compacting, and die-casting to make graphene-reinforced magnesium-based composite materials. The graphene-reinforced magnesium-based composite material has a hardness of 82.5HB, a tensile strength of 235Mpa, and an elongation of 7.3%. It is an advanced preparation method of graphene-reinforced magnesium-based composite materials.

Description

technical field [0001] The invention relates to a die-casting preparation method of a graphene-reinforced magnesium-based composite material, belonging to the technical field of non-ferrous metal composite material preparation and application. Background technique [0002] Graphene has excellent mechanical properties, thermal properties and electrical properties, and is one of the most ideal reinforcements for the preparation of metal-based nanocomposites. Using graphene to add magnesium alloys to prepare graphene-reinforced magnesium-based composites can improve its comprehensive properties. In this way, the application scope of magnesium alloys can be expanded; it can not only expand the application scope of graphene, but also create favorable conditions for the industrial production of magnesium-based composite materials; however, graphene has poor wettability and weak interface bonding force with magnesium alloys. Uniform distribution is a difficult problem in the prepar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C1/03C22C1/10C22C23/00B22D17/00
CPCC22C1/1036C22C23/00B22D17/007C22C1/12C22C1/1047
Inventor 赵宇宏李沐奚陈利文张婷候华梁建权李利民
Owner ZHONGBEI UNIV
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