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A kind of ceramic material and its manufacturing method for 3D printing

A ceramic material and 3D printing technology, applied in the field of 3D printing manufacturing, can solve the problems of brittle materials such as poor thermoplastic processability and fluidity, dislocation generation and movement difficulties, and increased labor costs, achieving high market application prospects, Effect of reduced density and low cost

Active Publication Date: 2018-03-23
安徽长朗三维科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The raw material preparation process of this method is simple, fast and convenient, but it needs to be frozen during the 3D printing process, which increases labor costs
[0006] As one of the 3D printing materials, ceramic materials have less slip system due to the structure and bonding of ceramic materials, making dislocation generation and movement difficult. On the other hand, there is a tendency to separate along grain boundaries. , this series of circumstances makes the ceramic material a brittle material in nature; and the thermoplastic processability and fluidity of brittle materials are very poor, so general ceramic materials cannot be directly used in 3D printing technology

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A ceramic material for 3D printing

[0027] (1) Heat polyethylene with a mass ratio of 20% at a temperature of 140°C to make it in a molten state;

[0028] (2) adding alumina porous ceramic microspheres with a mass ratio of 80% to polyethylene in a molten state for 1 minute, using a stirrer for uniform mixing during the addition process, and the stirrer speed is 240rpm;

[0029] (3) Send the uniformly mixed porous ceramic microspheres and thermoplastic resin into a twin-screw extruder with an aspect ratio of 36 to extrude and granulate. The extruder speed is 150rpm, and the temperature of each section of the extruder is: feeding section 155-164°C, melting section 192-198°C, mixing section 193-201°C, exhaust section 176-180°C, homogenization section 162-170°C;

[0030] (4) Cool the granulated material at room temperature for 3 minutes to obtain a 3D printing ceramic material that has fluidity in a heated state and solidification molding in a cooled state.

Embodiment 2

[0032] A ceramic material for 3D printing

[0033] (1) Heating ABS with a mass ratio of 20% at a temperature of 180°C to make it in a molten state;

[0034] (2) Alumina porous ceramic microspheres with a mass ratio of 80% were added to ABS in a molten state for 1 minute, and a stirrer was used for uniform mixing during the addition process, and the stirrer speed was 220rpm;

[0035](3) Send the uniformly mixed porous ceramic microspheres and thermoplastic resin into a twin-screw extruder with an aspect ratio of 36 to extrude and granulate. The extruder speed is 450rpm, and the temperature of each section of the extruder is: feeding section 158-166°C, melting section 193-198°C, mixing section 194-202°C, exhaust section 180-186°C, homogenization section 168-175°C;

[0036] (4) Cool the granulated material at room temperature for 3 minutes to obtain a 3D printing ceramic material that has fluidity in a heated state and solidification molding in a cooled state.

Embodiment 3

[0038] A ceramic material for 3D printing

[0039] (1) Heat polyethylene and polycarbonate with a mass ratio of 20% at a temperature of 165°C to make them in a molten state;

[0040] (2) Add aluminum carbide porous ceramic microspheres with a mass ratio of 80% to polyethylene and polycarbonate in a molten state for 1 minute, and use a stirrer to uniformly mix during the addition process, and the stirrer speed is 220rpm;

[0041] (3) Send the uniformly mixed porous ceramic microspheres and thermoplastic resin into a twin-screw extruder with an aspect ratio of 36 to extrude and granulate. The extruder speed is 260rpm, and the temperature of each section of the extruder is: feeding section 156-164°C, melting section 193-197°C, mixing section 192-200°C, exhaust section 175-180°C, homogenization section 161-170°C;

[0042] (4) Cool the granulated material at room temperature for 3 minutes to obtain a 3D printing ceramic material that has fluidity in a heated state and solidificati...

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Abstract

The invention discloses a porous ceramic microsphere composite material for 3D printing. The porous ceramic microsphere composite material is mainly composed of porous ceramic microspheres and thermoplastic resin, wherein the porous ceramic microspheres account for 80-99% of total weight, and the thermoplastic resin accounts for 1-20% of the total weight. The raw materials undergo extrusion pelletization through a twin-screw extruder so as to prepare the ceramic material for 3D printing. By characteristics of good fluidity and low density of the porous ceramic microspheres and by combination of thermoplastic processability of the thermoplastic resin, the characteristic of low thermoplastic processability of the ceramic material is overcome, and more selections are provided for a 3D printing material. The invention also discloses a preparation method of the ceramic material. More printing material selection spaces are provided for a three-dimensional printing technology, and a three-dimensional structured product of the ceramic material is prepared by a fused deposition modeling 3D printing technology. The production technology is simple, low-cost, safe and environmentally friendly, and has a market application prospect.

Description

technical field [0001] The invention belongs to the field of 3D printing manufacturing, and in particular relates to a ceramic material for 3D printing and a manufacturing method thereof. Background technique [0002] The global industry is experiencing the third industrial revolution. Unlike the past, this revolution will also have a huge impact on the development of the manufacturing industry. One of the most important new technologies is rapid prototyping technology, that is, 3D printing technology. Today's 3D technology mainly refers to digital stereo technology based on computers and the Internet. It is a rapid prototyping device that uses technologies such as light curing and paper lamination to turn blueprints on computers into real objects. Better than traditional manufacturing technology, its working principle is to convert a design item into 3D data, and then adopt layered processing and superposition forming, that is, to print a 3D entity by adding materials layer...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B26/04C04B26/18B33Y70/00
CPCB33Y70/00C04B26/04C04B26/045C04B26/18C04B18/023
Inventor 吕文堂
Owner 安徽长朗三维科技有限公司
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