Photocuring 3D printing nanoparticle reinforced metal part and preparation method thereof

A 3D printing and nanoparticle technology, applied in metal processing equipment, additive manufacturing, additive processing, etc., can solve the problems of unavailable photocurable structure, uncurable photosensitive resin, poor dispersion of metal powder, etc., to achieve good dispersion, Easy to crystallize and release heat, lowering the effect of sintering degreasing temperature

Active Publication Date: 2021-06-08
INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at this stage, when metal materials are prepared by photocuring 3D printing, due to the high surface energy of metal powder, it is easy to cause agglomeration between particles, resulting in poor dispersion of metal powder in photosensitive resin; Penetration, the photosensitive resin in the slurry cannot be cured, and finally a complete photo-cured structure cannot be obtained

Method used

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  • Photocuring 3D printing nanoparticle reinforced metal part and preparation method thereof
  • Photocuring 3D printing nanoparticle reinforced metal part and preparation method thereof
  • Photocuring 3D printing nanoparticle reinforced metal part and preparation method thereof

Examples

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Effect test

Embodiment 1

[0066] This embodiment prepares a light-cured 3D printing nanoparticle-reinforced metal part, which specifically includes the following steps:

[0067] Preparation of amorphous layer coating metal powder material: first with 250g particle diameter FeCrMoCB amorphous powder (wherein, the mass fraction of Fe is 57%, the mass fraction of Cr is 23%, the mass fraction of Mo is 18%, C The mass fraction of B is 1.5%, the mass fraction of B is 0.5%) and 100g of polyacrylic acid are placed in a beaker and mixed and heated to 50 ° C, and after mechanical stirring for 60 minutes, the temperature is raised to 100 ° C, while mechanical stirring Slowly add 50g of benzoyl peroxide and 700g of FeCrTiAlWMoTaCBZr metal powder (wherein, the massfraction of Fe is 58.25, the massfraction of Cr is 21%, the massfraction of Ti is 8%, the massfraction of Al is 10 microns) The mass fraction is 4.5%, the mass fraction of W is 4%, the mass fraction of Mo is 2%, the mass fraction of Ta is 2%, the mass fra...

Embodiment 2

[0075] This embodiment prepares a light-cured 3D printing nanoparticle-reinforced metal part, which specifically includes the following steps:

[0076] Preparation of amorphous layer coated metal powder material: first 150g of FeAlNbB amorphous powder with particle diameter of 120nm (wherein, the mass fraction of Fe is 71.5%, the mass fraction of Al is 24%, the mass fraction of Nb is 4%, B The mass fraction is 0.5%) and 150g of chloroacrylic acid are mixed in a beaker and heated to 60°C, and after 90 minutes of mechanical stirring, the temperature is raised to 90°C, and 100g of benzene peroxide is slowly added to it while mechanically stirring tert-butyl formate and 600g particle diameter are the FeTiAlNbCB metal powder (alloy powder of 30 microns, wherein, the massfraction of Fe is 60%, the massfraction of Ti is 18%, the massfraction of Al is 17%, the massfraction of Nb is 4%, the mass fraction of C is 0.5, and the mass fraction of B is 0.5%), and the coating step is carried ...

Embodiment 3

[0084] This embodiment prepares a light-cured 3D printing nanoparticle-reinforced metal part, which specifically includes the following steps:

[0085] Preparation of amorphous layer coated metal powder material: first 200g of FeCrSiBMn amorphous powder with a particle diameter of 100nm (the mass fraction of Fe is 69.5%, the mass fraction of Cr is 24%, the mass fraction of Si is 4%, the mass fraction of B Fraction is 0.5%, the mass fraction of Mn is 2%) and 120g polyacrylic acid are placed in the beaker and mixed and heated up to 55 ℃, and after mechanical stirring for 100 minutes, then raise the temperature to 80 ℃, while mechanical stirring Slowly add 80g of benzoyl peroxide and 600g of FeCrAlSiMoBMn metal powder (alloy powder, wherein the massfraction of Fe is 58%, the massfraction of Cr is 21%, the massfraction of Al is 17%, Si The mass fraction of Mo is 2%, the mass fraction of Mo is 1%, the mass fraction of B is 0.5%, and the mass fraction of Mn is 0.5%), and the coating...

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Abstract

The invention relates to a photocuring 3D printing nanoparticle reinforced metal part and a preparation method thereof. The preparation method comprises the following steps that after amorphous powder and a coating agent are mixed, a coupling agent and metal powder are added into a mixture at the set temperature, and stirring is carried out for coating; post-treatment is carried out on a product obtained in the coating step, and an amorphous layer coated metal powder material is obtained; the amorphous layer coated metal powder material, photosensitive resin, an ultraviolet light initiator and a dispersing agent are prepared into a photocuring 3D printing slurry; a photocuring 3D printer is used for carrying out photocuring forming treatment on the photocuring 3D printing slurry, and a photocuring 3D printing biscuit is obtained; and degreasing and sintering treatment are carried out on the photocuring 3D printing biscuit, and the photocuring 3D printing nanoparticle reinforced metal part is obtained. According to the photocuring 3D printing nanoparticle reinforced metal part and the preparation method, the metal powder is prepared into the amorphous layer coated metal powder material with a powdery core-shell structure, so that the dispersity of the metal powder in the photosensitive resin slurry is improved, and the photocuring 3D printing nanoparticle reinforced metal part is prepared.

Description

technical field [0001] The invention relates to the technical field of 3D printing additive manufacturing, in particular to a light-cured 3D printing nanoparticle-reinforced metal part and a preparation method thereof. Background technique [0002] At present, my country's machinery industry is accelerating the transformation of the development mode, and the production mode is striving to change to energy saving, emission reduction, and green manufacturing. The traditional subtractive manufacturing is developing in the direction of additive manufacturing. The near-net shape manufacturing technology of additive manufacturing has attracted widespread attention. Metal additive manufacturing technology mainly focuses on selected area laser melting (SLM), electron beam melting (EBM) and other technologies, but the above-mentioned processes cause thermal cracks or thermal stress material defects due to the huge energy input to the material during the preparation process. . In ord...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F10/10B22F1/02C22C45/02B33Y10/00B33Y80/00
CPCB22F3/22B22F3/1021C22C45/02B33Y10/00B33Y80/00B22F1/17
Inventor 李金国李乔磊梁静静周亦胄孙晓峰
Owner INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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