Method for preparing liquid-containing porous material through laser 3D printing

A 3D printing, porous material technology, applied in the direction of additive processing, etc., can solve the problem of vacancy of liquid-containing porous materials, and achieve the effect of high design value, simple process steps and high utilization rate

Active Publication Date: 2020-04-21
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The research on how to use 3D printing to prepare liquid-containing porous materials is currently relatively vacant

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A laser 3D printing preparation method of liquid-containing porous material is as follows:

[0024] 1. According to equipment determination, the borrowed laser 3D printing technology is selective laser sintering technology (SLS), and the composition of its printing raw materials should be printing powder, sintering agent, and liquid.

[0025] 2. In the process of configuring and printing raw materials, proportion by weight:

[0026] 1) 1000 copies of printing powder, the material can be selected in the range: nickel (Ni), copper (Cu), aluminum (Al), iron (Fe), tin (Sn), Ni-based alloy (16CR4B4SI), mixed copper powder (FTD4) ), ceramics (Al2O3, ZrO2 and SiC, etc.);

[0027] 2) 200 parts of sintering agent, of which: 200 parts of acrylonitrile-butadiene-styrene plastic (ABS plastic);

[0028] 3) 50 parts of liquid, its materials and selection range: diethylene glycol, glycerol, carbon tetrachloride, ethyl acetate, benzene, nitrobenzene, ethylene glycol, methylpyrrolidone, cresol, ...

Embodiment 2

[0035] A laser 3D printing preparation method of liquid-containing porous material is as follows:

[0036] 1. According to equipment determination, the borrowed laser 3D printing technology is selective laser sintering technology (SLS), and the composition of its printing raw materials should be printing powder, sintering agent, and liquid.

[0037] 2. In the process of configuring and printing raw materials, proportion by weight:

[0038] 1) 1000 copies of printing powder, the material can be selected in the range: nickel (Ni), copper (Cu), aluminum (Al), iron (Fe), tin (Sn), Ni-based alloy (16CR4B4SI), mixed copper powder (FTD4) ), ceramics (Al2O3, ZrO2 and SiC, etc.);

[0039] 2) 200 parts of sintering agent, of which: 200 parts of acrylonitrile-butadiene-styrene plastic (ABS plastic);

[0040] 3) 50 parts of liquid, its materials and selection range: diethylene glycol, glycerol, carbon tetrachloride, ethyl acetate, benzene, nitrobenzene, ethylene glycol, methylpyrrolidone, cresol, ...

Embodiment 3

[0047] A laser 3D printing preparation method of liquid-containing porous material is as follows:

[0048] 1. According to equipment determination, the borrowed laser 3D printing technology is selective laser sintering technology (SLS), and the composition of its printing raw materials should be printing powder, sintering agent, and liquid.

[0049] 2. In the process of configuring and printing raw materials, proportion by weight:

[0050] 1) 1000 copies of printing powder, the material can be selected in the range: nickel (Ni), copper (Cu), aluminum (Al), iron (Fe), tin (Sn), cobalt (Co), Ni-based alloy (16CR4B4SI), Mixed copper powder (FTD4), 60Cu40PMMA, ceramics (Al2O3, ZrO2 and SiC, etc.), composite materials of polymer wax;

[0051] 2) 200 parts of sintering agent, of which: 150 parts of polycarbonate (PC);

[0052] 3) 50 parts of liquid, its materials and selection range: diethylene glycol, glycerol, carbon tetrachloride, ethyl acetate, benzene, nitrobenzene, ethylene glycol, met...

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Abstract

The invention discloses a method for preparing a liquid-containing porous material through laser 3D printing. Calculation preference and special treatment are conducted on printing powder used for selective laser sintering/melting 3D printing (SLS/SLM), a special printing raw material obtained through uniform mixing of the printing powder and liquid is formed, and the liquid containing porous material with metal adopted as the solid phase is printed and prepared. The printing raw material comprises the following components including, by weight, 500-1000 parts of printing powder, 1-300 parts ofliquid and 0-1000 parts of sintering agents. By the adoption of the printing raw material and the adoption of the selective laser sintering/melting 3D printing technology (SLS/SLM), all factors of the printing process are controlled to a certain degree, and the liquid-containing porous material can be prepared. By means of the method, the preparing technology is simple, the cost is low, the prepared liquid-containing porous material has good physical performance of energy absorbing, impact resisting and the like compared with conventional materials, and the liquid-containing porous material can meet part of special requirements of different application scenes (dental implanting bodies, buffering shoe soles, wings, blades and the like)

Description

Technical field [0001] The invention relates to the field of preparation of liquid-containing porous materials, in particular to a method for preparing liquid-containing porous materials by laser 3D printing. Background technique [0002] Both vacuum or liquid-filled porous materials have good surface properties. Liquid-containing porous materials can meet the special needs of different application scenarios (dental implants, cushioning soles, wings, blades, etc.) due to their good energy absorption and impact resistance. Liquid-containing porous material is a relatively new concept. How to prepare the material is a difficult problem. At present, there are a small number of chemical methods to realize the preparation of porous composite materials based on liquid glass and natural silicate, but the method requires The preparation conditions and environmental requirements are high, which is not conducive to mass production, and only a specific conforming material can be prepared. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F3/11B33Y10/00B33Y70/10
CPCB22F3/11B33Y10/00B33Y70/00
Inventor 刘少宝尹展鹏戴庆华李栋栋
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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