Method for preparing liquid-containing porous materials by 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, novel concept and high utilization rate

Active Publication Date: 2022-04-22
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 for a liquid-containing porous material is as follows:

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

[0025] 2. In the process of configuring printing raw materials, the ratio is calculated by weight:

[0026] 1) 1000 copies of printing powder, the material can be selected: 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, including: 200 parts of acrylonitrile-butadiene-styrene plastic (ABS plastic);

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

Embodiment 2

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

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

[0037] 2. In the process of configuring printing raw materials, the ratio is calculated by weight:

[0038] 1) 1000 copies of printing powder, the material can be selected: 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, including: 200 parts of acrylonitrile-butadiene-styrene plastic (ABS plastic);

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

Embodiment 3

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

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

[0049] 2. In the process of configuring printing raw materials, the ratio is calculated by weight:

[0050] 1) 1000 copies of printing powder, the material can be selected from 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.), polymer wax composite materials;

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

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

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Abstract

The invention discloses a method for preparing liquid-containing porous materials by laser 3D printing. A special printing process is formed by calculating, optimizing and specially processing the printing powder used in selective laser sintering / melting 3D printing (SLS / SLM). Printing raw materials that are evenly mixed with powder and liquid to print and prepare liquid-containing porous materials with metal as the solid phase. The printing raw materials include the following components by weight: 500-1000 parts of printing powder; 1-300 parts of liquid; 0-1000 parts of sintering agent. Using this printing raw material, using selective laser sintering / melting 3D printing technology (SLS / SLM), and controlling various factors in the printing process, the liquid-containing porous material can be prepared. The preparation process of the present invention is simple and the cost is low. Compared with traditional materials, the prepared liquid-containing porous material has good physical properties such as energy absorption and impact resistance, and can meet different application scenarios (dental implants, cushioning soles, wings, blades, etc.) for some special requirements.

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] Vacuum or liquid-filled porous materials have good surface properties. Due to its good physical properties such as energy absorption and impact resistance, liquid-containing porous materials can meet the special needs of different application scenarios (dental implants, cushioning soles, wings, blades, etc.). Liquid-containing porous materials are a relatively new concept, and how to prepare such materials is a difficult problem. Currently, there are a few chemical methods available 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 relatively high, which is not conducive to mass production, and only one s...

Claims

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Application Information

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Patent Type & Authority Patents(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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