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3D printing quartz sand preparation process

A preparation process and 3D printing technology, which is applied in the field of 3D printing quartz sand preparation process, can solve the problems of poor performance of 3D printing quartz sand, achieve the effects of improving physical and chemical properties, solving poor performance, and improving dispersion

Pending Publication Date: 2022-01-14
康硕(德阳)智能制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a 3D printing quartz sand preparation process to solve the problem of poor performance of the existing 3D printing quartz sand

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A 3D printing quartz sand preparation process, comprising the following steps:

[0038] (1) sending the natural quartz sand into the cleaning machine for cleaning and desliming;

[0039] (2) Transport the natural quartz sand after cleaning and desliming to the drying machine for drying treatment;

[0040] (3) Send the dried natural quartz sand into a ball mill and perform a ball mill for 2-4 hours;

[0041] (4) The natural quartz sand after ball milling once is sent into the sieving machine to carry out a screening, and the sieving machine selects 60-100 purpose natural quartz sand for subsequent use;

[0042] (5) Part of the 60-100 purpose natural quartz sand is sent into the ball mill for secondary ball milling, and the ball milling time is 3-6 hours;

[0043] (6) The natural quartz sand after secondary ball milling is sent into the screening machine for secondary screening, and the natural quartz sand of 100-200 mesh is selected for subsequent use;

[0044] (7) 60...

Embodiment 2

[0048]On the basis of Example 1, the drying process of the step (2) is a curve drying process with a slope, wherein the temperature rises from 0°C to 200°C at a uniform speed in 0-30 minutes, and is kept for 30 minutes in 30-60 minutes. The temperature rises from 200°C to 400°C at a constant speed in 60-120 minutes, keeps warm for 30 minutes in 120-150 minutes, and then cools naturally.

Embodiment 3

[0050] On the basis of the above examples, the drying time of the quartz sand powder in the step (8) is 30-60 minutes, and the drying temperature is constant at 300°C.

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Abstract

The invention discloses a 3D printing quartz sand preparation process, belongs to the technical field of photocuring 3D printing, and aims to solve the problem that existing 3D printing quartz sand is poor in performance. The 3D printing quartz sand is composed of natural quartz sand, nano cristobalite powder and fused quartz powder. After the natural quartz sand is cleaned and deslimed, the mud content of the natural quartz sand is greatly reduced, and then natural quartz sand with an appropriate particle size proportion is obtained after multiple times of ball milling, screening and mixing. Part of components in the natural quartz sand can play a role in assisting melting in the sintering process to reduce the temperature of a ceramic sintering liquid phase and widen the ceramic sintering temperature range. Heating of the nano cristobalite powder can effectively improve the final sintering temperature and the high-temperature thermal deformation resistance of quartz ceramic. The nano effect of the nano cristobalite can effectively increase the strength of the ceramic at room temperature. The dispersity of quartz sand powder in resin can be improved by pouring the mixed quartz powder into boiling water and carrying out boiling water bath for 30 minutes. The method is suitable for preparing 3D printing quartz sand.

Description

technical field [0001] The invention belongs to the technical field of photocuring 3D printing, and in particular relates to a preparation process of 3D printing quartz sand. Background technique [0002] 3D printing technology, that is, additive manufacturing technology, as an emerging manufacturing strategy, has received more and more attention. The combination of 3D printing with chemistry, engineering, materials, medicine and other fields is gradually changing the existing molding and application methods. 3D printing technology is based on the rapid prototyping of digital model files, which breaks through the traditional prototyping mode. It achieves forming requirements by accumulating materials layer by layer from bottom to top, and can quickly realize complex structures that cannot be realized or are difficult to manufacture by traditional methods. Materials with a certain three-dimensional structure can be prepared by layer-by-layer printing, which reduces the desi...

Claims

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Application Information

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IPC IPC(8): C04B35/626C04B35/14B33Y70/00
CPCC04B35/62605C04B35/6261C04B35/14B33Y70/00C04B2235/5427C04B2235/5436C04B2235/6026
Inventor 樊一扬段戈扬陈彬刘江博闻
Owner 康硕(德阳)智能制造有限公司
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