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Method for achieving high-melting-point material 3D printing through nanometer ink together with laser melting

An inkjet printer, 3D technology, applied in printing devices, printing, etc., can solve the problems of fewer printing nozzles, narrow material selection range, slow printing speed, etc., achieve the effect of large number of nozzle holes, densification, and lower melting point

Inactive Publication Date: 2013-11-27
南京鼎科纳米技术研究所有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The invention solves the technical problems of narrow material selection range, fewer printing nozzles and slow printing speed in the existing 3D printing technology

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Step 1. First, prepare zinc, aluminum, copper and magnesium into nanoparticles with a diameter of 50-100nm, and prepare nanoparticle inks;

[0036] Step 2. According to the three-dimensional modeling requirements of the device, perform three-dimensional modeling and divide the three-dimensional graphics into several layers of two-dimensional graphics, calculate the shape and material composition of each two-dimensional plane, design the printing path, and use the required The composition and diameter of the nanoparticles, the melting and sintering temperature and time are calculated;

[0037] Step 3. Evacuate the molding cavity and introduce argon gas as a protective atmosphere, and perform 3D inkjet printing according to the ratio of 74.5% zinc, 22% aluminum, 3% copper, and 0.5% magnesium;

[0038] (4) In the 3D inkjet printing process, scan the printing area with a laser, control the spot diameter to be 1-100μm, the scanning speed to be 0.001-1000mm / s, and the heating temper...

Embodiment 2

[0041] (1) First, prepare titanium dioxide, aluminum oxide, zinc, aluminum, copper, and magnesium into nanoparticles with a diameter of 50-100 nm, and prepare the ink;

[0042] (2) According to the three-dimensional modeling requirements of the device, perform three-dimensional modeling and divide the three-dimensional graphics into several layers of two-dimensional graphics, calculate the shape and material composition of each two-dimensional plane, design the printing path, and use the The composition and diameter of the nanoparticles, the melting and sintering temperature and time are calculated;

[0043] (3) Evacuate the molding cavity and introduce argon gas as a protective atmosphere, and perform 3D inkjet printing according to the graphics output requirements;

[0044] (4) In the 3D inkjet printing process, combined with infrared remote sensing and laser sintering technology, the diameter of the spot is controlled to be 1-100μm, the scanning speed is 0.001-1000mm / s, and the he...

Embodiment 3

[0047] (1) First, prepare polyacrylic resin and one of metallic silver, copper, and aluminum into nanoparticles with a diameter of 50-100nm, respectively, and prepare nano-resin particle ink and nano-metal particle ink;

[0048] (2) According to the design of the circuit board, carry out three-dimensional modeling and divide the three-dimensional graphics into several layers of two-dimensional graphics, calculate the pattern of each two-dimensional plane and the ink used (metal ink for conductive areas, resin ink for insulating areas ), design the printing path, and calculate the melting and sintering temperature and time at the same time;

[0049] (3) Evacuate the molding cavity and introduce argon gas as a protective atmosphere, and perform 3D inkjet printing according to the graphics output requirements;

[0050] (4) In the 3D inkjet printing process, two sets of nozzles are used to simultaneously eject ink. One set of nozzles uses resin ink to print patterns of insulating areas, ...

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Abstract

The invention discloses a method for preparing the nanometer ink through ceramics, metal, semiconductors, glass and other high-melting-point materials, carrying out 3D printing and utilizing the laser heating sintering in the process of printing to obtain 3D devices formed by combining the ceramics, the metal, the semiconductors and other composite. The method comprises the first step of processing raw materials needed to prepare the device into nanometer particles of 1-500nm, the second step of preparing the particles into ink jet printing ink, the third step of carrying out 3D printing by utilizing an improved ordinary ink printer and adopting the laser heating sintering in the process of printing, and the fourth step of achieving the melting and sintering molding of the nanometer particles. According to the method, micron-level precision devices with any complex shape can be directly prepared, the high surface energy of the nanometer particles is utilized, the sintering temperature is lowered, high density is achieved, and a superior property is obtained. The method can be used for manufacturing automobile metal ceramic composite pistons, aviation engine tail pipes, and ceramic bearings and ceramal composite precise components of watches and other precision instruments and for directly printing a circuit board.

Description

Technical field [0001] The present invention relates to the field of inkjet printing and advanced manufacturing technology, and in particular to nanoparticle laser sintering and 3D printing, and in particular to a printing method for preparing high-precision, high-performance, high-melting-point composite 3D devices by laser sintering ink containing nanoparticles. Background technique [0002] 3D printing is a method based on computer three-dimensional design models. Through software layered discretization and CNC molding systems, special materials such as metal powder, ceramic powder, and plastics are deposited and bonded layer by layer using lasers, hot melt nozzles, etc., and finally Overlay molding is a technology that creates physical products. The traditional manufacturing industry produces devices through molds and machining, which requires a long processing cycle and requires a lot of equipment. 3D printing technology turns a complex three-dimensional entity into a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41J5/00
Inventor 张尚峰张阳明张世著石欣超刘闯刘裕勃刘岩张连斌
Owner 南京鼎科纳米技术研究所有限公司
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