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A kind of purple sand mud suitable for lmd method 3d printing and its preparation method and application

A 3D printing and purple sand mud technology, applied in the field of ceramic materials, to achieve the effect of reducing drying shrinkage and deformation, small volume, and reducing product cracking

Active Publication Date: 2020-12-04
山西省玻璃陶瓷科学研究所(有限公司)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Then add a certain amount of special plastic clay to improve the plasticity of the mud, and replace the organic binder with plastic clay. The clay can be sintered at a high temperature above 1000°C without decomposition and oxidation, which can improve the mechanical properties of 3D printed ceramic products and reduce Problems such as collapse, cracking, shrinkage, and deformation occur, and the dimensional accuracy of the product is improved

Method used

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  • A kind of purple sand mud suitable for lmd method 3d printing and its preparation method and application
  • A kind of purple sand mud suitable for lmd method 3d printing and its preparation method and application
  • A kind of purple sand mud suitable for lmd method 3d printing and its preparation method and application

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Embodiment 1 The present embodiment uses raw material chemical composition as following table:

[0034] name SiO 2

al 2 o 3

Fe 2 o 3

TiO 2

CaO MgO K 2 o

Na 2 o

Burn out Purple sand raw material 49.85 24.38 6.04 0.89 0.35 0.58 0.92 0.82 16.17 Datong soil 42.81 42.69 0.22 0.06 0.34 0.43 13.45 Longyan soil 72.09 16.94 0.08 0.59 0.56 2.18 0.21 7.35 Suzhou soil 44.87 39.01 0.28 0.15 0.67 0.29 0.01 0.08 14.64 Shuozhou soil 53.25 28.16 1.62 0.53 0.68 0.54 1.92 0.34 12.96

[0035] Plasticity index and index value of each clay

[0036]

[0037] The ingredients are prepared according to 10wt% of purple sand clinker, 80wt% of purple sand raw meal and 10wt% of plastic clay.

[0038] (1) Calcination: The raw material is pre-calcined to the clinker at 600°C;

[0039] (2) Ball milling: ball mill the raw material and clinker for 8 hours according to the ...

Embodiment 2

Burn out Purple sand raw material 57.05 20.08 6.34 0.72 0.48 0.27 0.77 0.84 13.45 Datong soil 46.27 36.21 0.30 0.05 0.19 0.56 16.42 Longyan soil 72.36 15.21 0.06 0.73 0.42 3.07 0.17 7.98 Suzhou soil 47.73 35.95 0.19 0.21 0.32 0.32 0.08 0.01 15.19 Shuozhou soil 55.34 28.21 1.55 0.69 0.52 0.45 1.73 0.26 11.25

[0054] Plasticity index and index value of each clay

[0055]

[0056] The ingredients are prepared according to 10wt% of purple sand clinker, 75wt% of purple sand raw meal and 15wt% of plastic clay.

[0057] (1) Calcination: The purple sand raw material is pre-calcined into clinker at 650°C;

[0058] (2) Ball milling: mill the clinker and raw meal for 8 hours, the material: ball: water ratio is 1:2.0:1.2, crush the materials and mix them evenly;

[0059] (3) Sieving: the mud after ball milling is passed through a 200-mesh sieve, and the sieve residue is ≤0.1%;

[0060] (4) Milling: the si...

Embodiment 3

Burn out Purple sand raw material 58.12 21.89 4.98 0.56 0.59 0.49 0.35 0.67 12.35 Datong soil 43.62 37.53 0.12 0.07 0.18 0.25 18.23 Longyan soil 73.29 16.53 0.02 0.69 0.43 2.34 0.28 6.42 Suzhou soil 46.34 38.15 0.13 0.18 0.52 0.13 0.06 0.12 14.37 Shuozhou soil 55.57 26.46 1.15 0.73 0.59 0.34 1.61 0.13 13.42

[0072] Plasticity index and index value of each clay

[0073]

[0074] The ingredients are prepared according to 13wt% of purple sand clinker, 75wt% of purple sand raw meal and 12wt% of plastic clay.

[0075] (1) Calcination: The raw material is pre-calcined to the clinker at 700°C;

[0076] (2) Ball milling: ball mill the raw material and clinker for 9 hours according to the ratio, the ratio of material: ball: water is 1:1.5:1, and the materials are pulverized and mixed evenly;

[0077] (3) Sieving: the mud after ball milling is passed through a 200-mesh sieve, and the sieve residue is ≤0....

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Abstract

A purple sand mud material suitable for LMD method 3D printing is prepared from the solid raw materials, by weight, of 10%-20% of purple sand grog, 70%-80% of purple sand raw material and 10%-15% of plastic clay, at the same time, the solid content is 72 wt%-76 wt%, and the index of plasticity is 2.2-2.8 cm*kg. The purple sand mud material suitable for LMD method 3D printing has the advantages that the solid content is high, the product accuracy is easy to control, and the strength is high.

Description

technical field [0001] The invention belongs to the field of ceramic materials, and in particular relates to a purple sand mud suitable for 3D printing by LMD method, its preparation method and application. Background technique [0002] At present, most 3D printing ceramic materials need to use organic materials such as organic binders or photosensitive resins. The maximum temperature resistance of the organic binder is usually between 100-250°C, while the sintering and compacting of ceramic particles requires a high temperature above 1000°C. Once the temperature is higher than 400°C during the firing process, the organic binder will quickly decompose, Oxidation produces CO 2 and H 2 O, CO 2 and H 2 O volatilization produces a large number of vacancies. Some of these vacancies form pores, which reduce the density and strength of the product, and some of them are filled by the glass phase. The shrinkage of the glass phase is large, resulting in inaccurate dimensions of ce...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B33/13C04B33/04C04B33/24B33Y70/00B33Y50/00B33Y10/00
CPCB33Y10/00B33Y50/00B33Y70/00C04B33/04C04B33/131C04B33/24C04B2235/77C04B2235/96
Inventor 张艾丽成龙胜宋慧民米有军杨尚权王琨高翔
Owner 山西省玻璃陶瓷科学研究所(有限公司)