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Laser preparation device and method of metal matrix carbon nanometer composite material

A composite material and a preparation device technology, which is applied in the field of laser preparation devices for metal-based carbon nanocomposite materials, can solve the problem that it is difficult to meet the requirements of product shape individuation, complexity and diversification, poor electrical, thermal, mechanical and other properties of composite materials, etc. Affecting the enhancement effect of carbon nanotubes, etc., to achieve the effect of short cycle, good performance and personalized shape

Active Publication Date: 2014-10-08
CHONGQING INST OF GREEN & INTELLIGENT TECH CHINESE ACADEMY OF SCI
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current preparation process has long cycle, low efficiency and poor quality in the preparation of metal matrix carbon nanocomposites; and it is difficult to meet the requirements of individualized, complex and diversified product shapes; The interfacial interaction directly affects the performance of metal-based carbon nanocomposites. Most of the metal matrix and carbon nanomaterials are mainly in physical contact, and there is very little chemical bonding. Poor thermal, mechanical and other properties; carbon nanomaterials have nanoscale scales, large specific surface area, high specific surface energy, easy to entangle and agglomerate, and are not easy to disperse uniformly and dispersedly in the metal matrix, which affects the carbon nanotubes. Enhancement

Method used

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  • Laser preparation device and method of metal matrix carbon nanometer composite material
  • Laser preparation device and method of metal matrix carbon nanometer composite material

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Embodiment 1

[0030] Such as figure 1 As shown, a laser preparation device for metal-based carbon nanocomposites includes a numerical control system 1, a vacuum forming chamber 7 and a lifting system 13, and a working head 3 and a substrate 14 are arranged in the vacuum forming chamber 7; A powder feeder 2, a carbon source gas generator 11, a laser 4, and a laser transmission device 5 are arranged outside the room 7; the powder feeder 2 controls the working head 3 to lay metal powder on the substrate 14; the laser 4 emits laser light The metal powder is sintered by the beam through the laser transmission device 5; the carbon source gas generator 11 is used to feed the carbon source gas when the metal powder is sintered by the laser beam; the lifting system 13 is used to control the rise of the substrate 14 or descending; the numerical control system 1 is respectively connected with the laser 4, the powder feeder 2 and the carbon source gas generator 11.

[0031] In the device of the presen...

Embodiment 2

[0037] figure 2 A flowchart showing a laser preparation method of a metal-based carbon nanocomposite;

[0038] A laser preparation method of a metal-based carbon nanocomposite material, specifically comprising the following steps:

[0039] Step (1). Establish the three-dimensional model of the parts, and carry out hierarchical discretization, generate scanning path data, and import the data into the numerical control system;

[0040] Step (2). First evacuate the vacuum forming chamber, then inject inert gas into the vacuum forming chamber, and control the oxygen concentration in the forming chamber within a certain concentration range;

[0041] Step (3). The powder feeder sends the metal powder into the vacuum forming chamber, lays a layer of metal powder on the substrate, and recycles the excess metal powder at the same time;

[0042] Step (4). According to the preset graphic data, the laser beam scans the metal powder to form a focused spot on the processing plane of the me...

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Abstract

The invention discloses a laser preparation device and method of a metal matrix carbon nanometer composite material. According to the device and method, a numerical control system is adopted for centralized control, a powder feeder controls metal powder to be laid on a substrate through a computer instruction, area selecting sintering is performed on the metal powder through laser beams according to computer graphic data, meanwhile, carbon source gas is introduced, thermolysis is performed in a high-temperature area controlled by a temperature compensating device, various carbon nanostructure materials are generated through catalysis and combined with a metal matrix in the sintering process in real time, and the metal matrix carbon nanometer composite material can be formed. According to the device and method, a powder paving device, a laser, a temperature adjuster and the like are used for centralized control through the numerical control system, and the device and method have the advantages of being high in instantaneity, high in processing speed and the like. The manufactured metal matrix carbon nanometer composite material is high in efficiency and accuracy and good in performance.

Description

technical field [0001] The invention belongs to the technical field of forming metal-based carbon nanocomposite materials, and in particular relates to a laser preparation device and method for metal-based carbon nanocomposite materials. Background technique [0002] Metal-based carbon nanocomposites are formed by uniformly distributing carbon nanomaterials such as carbon nanotubes, carbon nanofibers, and carbon nanospheres in a metal and alloy matrix with at least one dimension within 100 nm. Metal-based carbon nanocomposites combine the excellent properties of traditional metals / alloys and carbon nanomaterials. They have the characteristics of low density, high strength, good toughness, good heat transfer and electrical conductivity, strong hydrophobicity, and wear resistance. They are used in automobiles, High-tech fields such as electronics, machinery, and aerospace show broad application prospects and are research hotspots in the field of new materials. [0003] At pre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F3/105
Inventor 沈俊魏文猴段宣明
Owner CHONGQING INST OF GREEN & INTELLIGENT TECH CHINESE ACADEMY OF SCI
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