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Preparation of rapid prototyping black pottery powder for laser sintering 3D printing

A 3D printing and laser sintering technology, which is applied in the field of 3D printing molding, laser sintering 3D printing rapid prototyping powder materials, and laser sintering 3D printing rapid prototyping black pottery powder preparation, which can solve the complex manufacturing process, time-consuming and laborious, etc. problem, to achieve the effect of simple preparation process, high surface gloss and good strength

Inactive Publication Date: 2019-02-22
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The production process is complicated, time-consuming and labor-intensive

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] (1) Pretreatment of black pottery clay: the black pottery clay is dried, ground, sieved, and the particle size is controlled within the range of 0.2~5μm to obtain pretreated black pottery clay;

[0027] (2) Preparation of granulated black pottery powder: in the reactor, add ethanol: 6300mL, polyvinyl formal: 50g, rosin resin: 50g, triethyl citrate: 10g, stir and dissolve, and then add pretreatment Black pottery clay: 4900g, vigorously stirred, reacted for 90min, stirred to dissolve, and then spray-dried to obtain granulated black pottery powder, the particle size of which was in the range of 30~100µm;

[0028] (3) Preparation of rapid prototyping black pottery powder for laser sintering 3D printing: add in the mixer separately, granulate black pottery powder: 90g, calcium stearate: 1.0g, dipropylene triamine: 1.0g, turn on the speed of the mixer At 300 r / min, stir for 30min, heat to make the temperature reach 130°C, under stirring, add a-cyanoacrylate: 4.0g, thermoplast...

Embodiment 2

[0030] (1) Pretreatment of black pottery clay: the black pottery clay is dried, ground, sieved, and the particle size is controlled within the range of 0.2~5μm to obtain pretreated black pottery clay;

[0031](2) Preparation of granulated black pottery powder: in the reactor, add ethanol: 6500mL, polyvinyl formal: 80g, rosin resin: 80g, triethyl citrate: 50g, stir and dissolve, and then add pretreatment Black pottery clay: 4600g, vigorously stirred, reacted for 80min, stirred to dissolve, and then spray-dried to obtain granulated black pottery powder, the particle size of which was in the range of 30~100µm;

[0032] (3) Preparation of rapid prototyping black pottery powder for laser sintering 3D printing: add in the mixer separately, granulate black pottery powder: 190g, calcium stearate: 1.0g, dipropylene triamine: 1.0g, turn on the speed of the mixer At 300 r / min, stir for 30min, heat to make the temperature reach 120°C, under stirring, add a-cyanoacrylate: 4.0g, thermoplast...

Embodiment 3

[0034] (1) Pretreatment of black pottery clay: drying the black pottery clay, grinding, sieving, and controlling the particle size within the range of 0.2~5μm to obtain pretreated black pottery clay;

[0035] (2) Preparation of granulated black pottery powder: in the reactor, add ethanol: 6000mL, polyvinyl formal: 60g, rosin resin: 120g, triethyl citrate: 20g, stir and dissolve, and then add pretreatment Black pottery clay: 5000g, vigorously stirred, reacted for 100min, stirred and dissolved, and then spray-dried to obtain granulated black pottery powder with a particle size in the range of 30~100µm;

[0036] (3) Preparation of rapid prototyping black pottery powder for laser sintering 3D printing: in the mixer, add separately, granulate black pottery powder: 880g, calcium stearate: 15g, dipropylene triamine: 2.0g, turn on the mixer speed at 300 r / min, stirring for 30 min, heating to make the temperature reach 140 ℃, under stirring, add a-cyanoacrylate: 50g, thermoplastic epox...

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Abstract

The invention discloses a preparation method of quick-forming black pottery powder for laser sintering 3D (three-dimensional) printing. The preparation method is characterized by comprising the following steps of firstly, granulating black pottery soil into granulated black pottery powder with particle size of 30 to 100mu m; then, adding 88 to 95% of the granulated black pottery powder, 0.5 to 1.5% of calcium stearate, and 0.2 to 1.0% of dipropylenetriamine into a stirring machine in percentage by mass, heating to enable temperature to be 120 to 140 DEG C, and adding 2 to 6% of alpha-cyanoacrylate and 2 to 6% of thermoplastic epoxy resin in the stirring process, wherein the sum of percentage of components is 100%; continuing to stir at the rotation speed of 300rpm, and cooling to the room temperature, so as to obtain the quick-forming black pottery powder for the laser sintering 3D printing. The particle size of the obtained quick-forming black pottery powder for the laser sintering 3D printing is 40 to 120mu m. The quick-forming black pottery powder has the advantages that the direct forming is realized by the laser sintering, the degree of sphericity is high, the fluidity is good, the forming accuracy is high, the preparation technology is simple, the condition is easy to control, the production cost is low, and the industrialized production is easy.

Description

technical field [0001] The invention relates to a preparation method for laser sintering 3D printing rapid prototyping powder material, belonging to the field of rapid prototyping materials, in particular to a preparation method for laser sintering 3D printing rapid prototyping black pottery powder and 3D printing molding. Background technique [0002] Black pottery, born in the Neolithic Age of China, is an ancient pottery-making technique of the Han nationality. It is known as black as lacquer, as loud as lacquer, as thin as paper, as bright as mirror, and as hard as porcelain. Black pottery. The Yunnan-Tibetan culture in the late Neolithic Age, the Dawenkou Culture, the Longshan Culture, the Qujialing Culture and the Liangzhu Culture and other sites appeared. The firing temperature of black pottery is about 1000 degrees. There are three types of black pottery: fine mud, mud and sand. Among them, fine mud and thin-walled black pottery has the highest production level and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B33/04C04B33/13B33Y70/00C04B33/32
CPCC04B33/04C04B33/1305C04B33/32C04B35/6261C04B35/62695C04B35/632C04B35/6342C04B35/63452C04B35/63492C04B2235/48C04B2235/665
Inventor 李慧芝杨秋苹何成贵
Owner UNIV OF JINAN
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