Three-dimensional rapid formed composite powder material
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A composite powder and fast technology, applied in the field of 3D printing, can solve problems affecting printing efficiency and printing accuracy, environmental pressure, high production cost pressure, etc., and achieve the effects of improving printing efficiency, high compressive strength, and enhancing fluidity
Inactive Publication Date: 2016-12-21
SUZHOU BC TECH
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[0004] Different rapid prototyping technologies have different requirements for forming materials, but rapid and accurate prototyping is a requirement for 3D printing materials, and the forming materials largely determine the success or failure of rapid prototyping technology, but the commonly used 3D rapid prototyping materials have the following defects : (1) The material contains a large number of components that are difficult to degrade, which puts pressure on the environmen
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Embodiment 1
[0028] Example 1 discloses a composite powder material, which is used in a three-dimensional rapid prototyping printer, and the formula of the material is shown in Table 1.
[0029] Formulation table in table 1 embodiment 1
[0030]
Embodiment 2
[0032] Example 2 discloses a composite powder material, which is used in a three-dimensional rapid prototyping printer, and the formula of the material is shown in Table 2.
[0033] Formulation table in table 1 embodiment 2
[0034]
[0035]
Embodiment 3
[0037] In Example 3, a composite powder material is developed, which is applied in a three-dimensional rapid prototyping printer, and the formula of the material is shown in Table 3.
[0038] Formulation table in table 3 embodiment 3
[0039]
[0040] Among them, the filler in the above-mentioned embodiment 1-3 can be selected from calcium carbonate, barium sulfate, talcum powder, and fumed silica; the above-mentioned pigment can be selected from carbon black, iron oxide red, titanium dioxide, phthalocyanine blue; the above-mentioned solvent can be selected from distilled water , methanol, ethanol, propanol.
[0041] The particle size of the above-mentioned starch is selected from 1-10 μm, the particle size of the above-mentioned cellulose is selected from 50-100 μm, the particle size of the above-mentioned maltodextrin is selected from 100-300 μm, and the starch base composed of the above-mentioned starch, cellulose, maltodextrin, filler and pigment The particle size of t...
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Abstract
The invention discloses a three-dimensional rapid formed composite powder material. The composite powder material comprises: starch-based composite powder comprising, by weight, 70-90 parts of starch, 10-15 parts of cellulose, 40-60 parts of maltodextrin, 25-45 parts of a filler and 5-10 parts of a pigment; and a water-based binding solution comprising, by weight, 90 parts of a solvent, 5 parts of ethylene glycol, 5 parts of ethylene glycol diacetate and 5 parts of isopropanol, wherein the particle size of the starch is 1-10 [mu]m, the particle size of the cellulose is 50-100 [mu]m, the particle size of the maltodextrin is 100-300 [mu]m, and the granularity of the starch-based composite powder is 200-400 meshes. Adjustment of the formula of the material and use of the water-based binding solution make the integral composite material be easy to bind and improve the forming speed, and the composite powder material which is based on the starch-based composite powder is degradable, and is an environmentally-friendly material.
Description
technical field [0001] The invention relates to the technical field of three-dimensional printing, in particular to a three-dimensional rapid prototyping composite powder material. Background technique [0002] Three-dimensional rapid prototyping technology is a relatively popular technology in manufacturing technology. It is a stacked manufacturing technology. Its principle is to create objects by adding materials to objects layer by layer. It obtains the path, limitation and method of stacking through discrete, and forms a three-dimensional entity through the superposition of stacked materials, which is combined with a computer system to improve the efficiency and accuracy of rapid prototyping, which is in stark contrast to the traditional removal molding. Construction, approximate processing, slice processing, section processing, section superposition, post-processing, etc. [0003] Among them, the 3DP process adopts three-dimensional three-dimensional molding. The secti...
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