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Laser preparation device and method of a metal-based carbon nanocomposite 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: 2016-06-15
CHONGQING INST OF GREEN & INTELLIGENT TECH CHINESE ACADEMY OF SCI
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  • Summary
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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 a metal-based carbon nanocomposite material
  • Laser preparation device and method of a metal-based carbon nanocomposite material

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Embodiment 1

[0030] Such as figure 1 As shown, a laser preparation device of a metal-based carbon nanocomposite material includes a numerical control system 1, a vacuum forming chamber 7 and a lifting system 13. The vacuum forming chamber 7 is provided with a working head 3 and a substrate 14; the vacuum forming A powder feeder 2, a carbon source gas generator 11, a laser 4, and a laser transmission device 5 are arranged outside the chamber 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 laser beam transmission device 5; the carbon source gas generator 11 is used for sintering the metal powder by the laser beam to pass carbon source gas; the lifting system 13 is used to control the rise or rise of the substrate 14 Down; The numerical control system 1 is connected to the laser 4, the powder feeder 2 and the carbon source gas generator 11 respectively.

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

Embodiment 2

[0037] figure 2 Shows a flow chart of the laser preparation method of metal-based carbon nanocomposite materials;

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

[0039] Step (1). Establish a three-dimensional model of the parts and perform layered discretization, generate scan path data, and import the data into the CNC system;

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

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

[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 metal powder, and melt the ...

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Abstract

The invention discloses a laser preparation device and method for a metal-based carbon nanocomposite material. The invention adopts the centralized control of a numerical control system, the powder feeder controls the metal powder to be laid on the substrate through computer instructions, and the laser beam realizes the laser beam on the metal according to the computer graphic data. Selective sintering of powder, while introducing carbon source gas, pyrolyzing and catalyzing various carbon nanostructure materials in the high temperature area controlled by the temperature compensation device, and real-time composite with the metal matrix in the sintering process to form metal-based carbon nanocomposites. The present invention centrally controls powder spreaders, lasers, temperature regulators, etc. through a numerical control system, and has the advantages of strong real-time performance and fast processing speed. The present invention prepares metal-based carbon nanocomposites with high efficiency, high precision, and good performance.

Description

Technical field [0001] The invention belongs to the technical field of metal-based carbon nanocomposite material molding, and particularly relates to a laser preparation device and method for metal-based carbon nanocomposite materials. Background technique [0002] The metal-based carbon nanocomposite material is made up of carbon nanotubes, carbon nanofibers, carbon nanospheres and other carbon nanomaterials with at least one dimension within 100nm uniformly distributed in a metal and alloy matrix. Metal-based carbon nanocomposites have the excellent properties of both 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. High-tech fields such as electronics, machinery, aerospace, etc. present broad application prospects and are the research hotspots in the field of new materials. [0003] At present, the preparatio...

Claims

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Application Information

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Patent Type & Authority Patents(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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