A kind of particle reinforced lightweight microlattice composite material and preparation method thereof

A composite material and micro-lattice technology, which is applied in the direction of additive processing, metal material coating technology, liquid chemical plating, etc., can solve the problems of difficult control of molding pressure, many manual operations, complicated process flow, etc. Strong design, good film adhesion and fast deposition rate

Inactive Publication Date: 2019-08-13
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] (1) There are too many manual operations, and it is not easy to achieve batch production;
[0013] (2) The technological process is complex and easily leads to defects;
[0014] (3) The molding pressure is not easy to control, and it is easy to cause the round rod to split

Method used

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  • A kind of particle reinforced lightweight microlattice composite material and preparation method thereof
  • A kind of particle reinforced lightweight microlattice composite material and preparation method thereof
  • A kind of particle reinforced lightweight microlattice composite material and preparation method thereof

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preparation example Construction

[0058] Such as figure 1 As shown, the preparation method of the particle-reinforced lightweight microlattice composite material according to the present invention includes the following steps:

[0059] 1) Using different rapid prototyping technologies to prepare templates of different materials, different lattice structures and parameters,

[0060] among them:

[0061] a) The rapid prototyping technology includes (at least) one selected from the following processes: light curing three-dimensional molding technology (SLA), digital light processing (DLP), selective laser sintering (SLS), fusion molding (FDM) );

[0062] In an embodiment of the present invention, the process parameters of SLA are: filling scanning speed: 200-500mm / s, scanning pitch: 0.1-0.5mm, spot compensation diameter: 0.1-0.3mm, supporting scanning Speed: 80~120mm / s, jumping speed: 300~800mm / s, waiting time between layers: 1~5s, table feed speed: 2~10mm / s, table immersion depth: 5~10mm;

[0063] In an embodiment of th...

Embodiment 1

[0085] 1) Preparation of three-dimensional microlattice polymer template

[0086] Using Digital Light Processing (DLP) to prepare diamonds

[0087] Template of regular tetrahedron structure, such as figure 2 Shown.

[0088] The process parameters of digital light processing (DLP) are: projection resolution 768×480, projection light band 405nm, slice thickness 30μm, curing at room temperature, curing time per layer 6s, and each movement time of the stepper motor is 2s.

[0089] The template material used in digital light processing (DLP) is: composite photosensitive resin DXZ-100, the main component of which is methacrylic resin.

[0090] The size of the diamond lattice structure template is: the length is 28.03mm, the width is 18.94mm, and the height is 9.54mm. The diameter of each column is 0.3mm, and the length of the column is 1mm. This structure has high structural stability, elasticity and physical stability against destruction.

[0091] 2) Depositing a Ni-P-diamond film on the s...

Embodiment 2

[0103] 1) Preparation of three-dimensional microlattice polymer template

[0104] The template of diamond regular tetrahedron structure is prepared by light-curing three-dimensional molding technology (Stereo Lithography Appearance, SL or SLA).

[0105] In this embodiment, the process parameters of SLA are: filling scanning speed is 300mm / s, scanning distance is 0.1mm, spot compensation diameter is 0.2mm, supporting scanning speed is 100mm / s, and jumping speed It is 600mm / s, the waiting time between layers is 5s, the table feed speed is 5mm / s, and the table immersion depth is 6mm.

[0106] The template material used in light-curing molding technology (SLA) is: composite photosensitive resin EX-200, whose main component is acrylic resin.

[0107] The size of the diamond lattice structure template is: the length is 28.94mm, the width is 19.68mm, and the height is 10.05mm. The diameter of each column is 0.6mm, and the length of the column is 2mm.

[0108] 2) Depositing a Ni-P-boron nitri...

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Abstract

The invention relates to a perpetration method of a particle-reinforced light microarray composite material. A light microarray material (with the density rho being smaller than or equal to 1000mg / cm<3>) has the characteristics of being low in weight and high in mechanical strength. Due to the properties of sound absorption, heat absorption, damping and the like, the light microarray material can be greatly used in the fields of aviation, aerospace, buildings and the like. The preparation method includes the two steps that (1) a fast forming technology is adopted for preparing a three-dimensional microarray polymer template of a designed structure; and (2) a chemical composite plating method is adopted for depositing a compound thin film on the surface of the microarray polymer template. The microarray composite material prepared through the method has the properties such as low density, high strength, high-temperature resistance, excellent light, electricity, heat and abrasion resistance, thereby being a multifunctional light lattice material. The work is expected to provide a valuable reference for light high-strength engineering materials.

Description

Technical field [0001] The invention relates to a lightweight micro-lattice composite material reinforced by particles and a preparation method thereof. Background technique [0002] Vigorously promoting the lightweight and reduction of materials and equipment is a key measure to realize energy conservation and emission reduction and accelerate the construction of a conservation-oriented society, and is the development direction of engineering technology in the new century. From ocean platforms, large aircraft fuselages and EMU car bodies, to vehicles in daily life, and even small electronic radiator parts, lightweight and multifunctional have become an important part of its development. On the basis of existing materials and structures, further reducing weight and obtaining better comprehensive performance such as high mechanical strength, good heat dissipation performance, dynamic performance and vibration isolation, sound insulation performance and other functions are the chal...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C18/22C23C18/28C23C18/30C23C18/50B29C67/00B33Y10/00
CPCB33Y10/00C23C18/22C23C18/285C23C18/30C23C18/50
Inventor 杨青林范琼琼高燕郭林江雷
Owner BEIHANG UNIV
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