Preparation method of nanoparticle/hollow sphere composite reinforced metal-based composite material

A nanoparticle and composite material technology, which is applied in the field of preparation of nanoparticle/hollow sphere composite reinforced metal matrix composite materials, can solve the problems of complex preparation process, high preparation cost, hollow sphere breakage, etc., and achieve simple process and ensure process Safe, avoid burning effect
CN110791673AInactive Publication Date: 2020-02-14AVIC BEIJING AERONAUTICAL MFG TECH RES INST
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
AVIC BEIJING AERONAUTICAL MFG TECH RES INST
Publication Date
2020-02-14
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a preparation method of a nanoparticle / hollow sphere composite reinforced metal-based composite material. The preparation method comprises the steps that firstly, a nanoparticle-reinforced metal-based composite material blank and hollow spheres are sealed in a steel capsule and isolated with a perforated plate in the middle, a first air guiding pipe is connected with the blank end, and a second air guiding pipe is connected with the hollow sphere end; secondly, the steel capsule is put into a box-type resistance furnace to be heated, vacuumizing is conducted through avacuum unit in the heating process to keep the vacuum degree in the steel capsule, melt is formed after the nanoparticle-reinforced metal-based composite material blank is molten, and the melt is loaded through the first air guiding pipe and enters spaces among the ceramic hollow spheres through the perforated plate; and lastly, the steel capsule is taken out from the box-type resistance furnace and cooled to room temperature, the steel capsule is removed in a machining mode, and finally the nanoparticle / hollow sphere composite reinforced metal-based composite material is prepared. Therefore,a way is provided for efficient, low-cost and high-performance preparation of the nanoparticle / hollow sphere composite reinforced metal-based composite material.
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Description

technical field

[0001] The invention relates to the technical field of metal-matrix composite material preparation, in particular to a method for preparing a nanoparticle / hollow sphere composite reinforced metal-matrix composite material. Background technique

[0002] Metal matrix composites are composite materials that use metal as the matrix and ceramic particles, carbon nanotubes, hollow spheres, short fibers, whiskers, long fibers, etc. as reinforcements. It has the advantages of low density, high specific strength, and high specific stiffness. It has been widely used in the fields of aviation, aerospace and automobiles. At present, the preparation methods of metal matrix composites mainly include casting method and powder metallurgy method, among which casting method is the most widely used, mainly including stirring casting method and infiltration casting method.

[0003] Different reinforcements are used to prepare composite materials, which have different performanc...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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