Preparation method of metal and high polymer material composite 3D printing wire

A polymer material and printing wire technology, applied in the field of metal manufacturing, can solve the problems of poor toughness of metal 3D printing wire, and achieve the effect of good breaking strength and good elongation

Pending Publication Date: 2021-02-02
ANHUI YUANCHEN ENVIRONMENTAL PROTECTION SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem solved by the present invention is to solve the problem of poor toughness of existing metal 3D printing wires

Method used

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  • Preparation method of metal and high polymer material composite 3D printing wire
  • Preparation method of metal and high polymer material composite 3D printing wire
  • Preparation method of metal and high polymer material composite 3D printing wire

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A method for preparing metal and polymer material composite 3D printing wire, comprising the following steps:

[0036] (1) Add 800g of 316L stainless steel powder with a particle size of 400 mesh and 100g of polypropylene into an internal mixer and mix until the stress is stable, the reaction temperature is 185°C, and the rotation speed is 150r / min;

[0037] (2) 50g paraffin, 15g stearic acid are added in the banbury mixer successively, mix to obtain banbury material;

[0038] (3) extrude the banburying material prepared in step (2) through a single-screw extruder to wind up the 3D printing filament, the extrusion temperature is 190°C, and the rotation speed is 400r / min;

[0039] (4) Extrude the metal printing wire through a melting 3D printing equipment, the printing temperature is 200°C, and the printing speed is 100%, and the blank is obtained;

[0040] (5) Put the blank prepared in step (4) into an oven, raise the temperature to 400°C at a rate of 0.5°C / min, and ke...

Embodiment 2

[0047] A method for preparing metal and polymer material composite 3D printing wire, comprising the following steps:

[0048] (1) Add 800g of 316L stainless steel powder with a particle size of 400 mesh and 140g of polypropylene into the internal mixer and mix until the stress is stable, the reaction temperature is 190°C, and the rotation speed is 200r / min;

[0049] (2) 50g paraffin, 15g stearic acid are added in the banbury mixer successively, mix to obtain banbury material;

[0050] (3) extrude the banburying material prepared in step (2) through a single-screw extruder to wind up the 3D printing filament, the extrusion temperature is 190°C, and the rotation speed is 400r / min;

[0051] (4) Extrude the metal printing wire through a melting 3D printing equipment, the printing temperature is 200°C, and the printing speed is 100%, and the blank is obtained;

[0052] (5) Put the blank prepared in step (4) into an oven, raise the temperature to 400°C at a rate of 0.5°C / min, keep ...

Embodiment 3

[0059] A method for preparing metal and polymer material composite 3D printing wire, comprising the following steps:

[0060] (1) Add 800g of 316L stainless steel powder with a particle size of 400 mesh and 100g of polypropylene into the internal mixer and mix until the stress is stable, the reaction temperature is 190°C, and the rotation speed is 200r / min;

[0061] (2) 80g paraffin, 15g stearic acid are added in the banbury mixer successively, mix to obtain banbury material;

[0062] (3) extrude the banburying material prepared in step (2) through a single-screw extruder to wind up the 3D printing filament, the extrusion temperature is 190°C, and the rotation speed is 400r / min;

[0063] (4) Extrude the metal printing wire through a melting 3D printing equipment, the printing temperature is 200°C, and the printing speed is 100%, and the blank is obtained;

[0064] (5) Put the blank prepared in step (4) into an oven, raise the temperature to 400°C at a rate of 0.5°C / min, and k...

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Abstract

The invention discloses a preparation method of a metal and high polymer material composite 3D printing wire, and relates to the technical field of metal manufacturing. The preparation method is provided based on the problem that a metal 3D printing wire in the prior art is poor in toughness. According to the preparation method, a high polymer coupling agent, paraffin, stearic acid and other components are mixed according to a certain proportion, metal powder and the formula are fully and evenly mixed through an internal mixer, the toughness of the 3D printing wire is controlled by adjusting the proportion of the high polymer coupling agent to the metal powder, the prepared composite material is extruded and drawn through a single screw, and then a metal finished product is prepared through a printing-degumming-sintering process. The preparation method has the advantages that the 3D printing wire with the diameter being 1.75 + / -0.02 mm can be prepared through a metal fused deposition modeling method; and it is verified through tests that a blank obtained after the prepared 3D printing wire is subjected to fusion treatment is good in breaking strength and elongation, and the surfaceof a sintered blank is smooth and free of cracks.

Description

technical field [0001] The invention relates to the technical field of metal manufacturing, in particular to a method for preparing metal and polymer material composite 3D printing filaments. Background technique [0002] "3D printing" is very popular now, and it is a hotly discussed term. Although 3D printing is a new concept, it is not a new technology, because since the 1980s, various research institutes at home and abroad have begun research, and its technical terms are called "rapid prototyping" or "rapid manufacturing" ( English abbreviation RP) is now also called "additive manufacturing", which is proposed from the special manufacturing method of 3D printing. [0003] At present, the mainstream methods of metal 3D printing include three-dimensional printing process (3DP), laser selective sintering / melting (SLS / SLM), etc. Three-dimensional printing process (3DP) is the technology of three-dimensional printing. It uses the principle of ordinary printers to connect the...

Claims

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Application Information

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IPC IPC(8): B22F10/18B22F10/64B22F1/00B33Y10/00B33Y40/20B33Y70/10
CPCB22F3/00B22F3/1021B33Y10/00B33Y40/20B33Y70/10B22F1/10
Inventor 胡呈杰周冠辰古俊飞付素雅刘文明聂孙建
Owner ANHUI YUANCHEN ENVIRONMENTAL PROTECTION SCI & TECH
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