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Method for utilizing waste ceramics with 3D printing technology and product

A technology of 3D printing and waste porcelain, which is applied in the field of using waste porcelain with 3D printing technology, can solve the problems of low utilization of waste porcelain, large difference in properties between waste porcelain and raw materials, and uncontrollable influence of products, so as to achieve low cost and prevent Cracks, the effect of reducing stress concentration

Inactive Publication Date: 2019-01-04
胡可辉
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The utilization of waste porcelain in this method is low, and due to the large difference in properties between waste porcelain and raw materials, it will have an uncontrollable impact on the product

Method used

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  • Method for utilizing waste ceramics with 3D printing technology and product
  • Method for utilizing waste ceramics with 3D printing technology and product
  • Method for utilizing waste ceramics with 3D printing technology and product

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] 1) The recovered waste porcelain was crushed and sampled, and then the water absorption rate was measured using the TXY series digital display ceramic water absorption tester produced by Shanghai Precision Instrument Co., Ltd. according to its instructions. According to the water absorption rate below 2%, 2% to 10%, and above 10%, wash and dry them respectively.

[0046] 2) Take waste porcelain with a water absorption rate of more than 10%, crush it with a ball mill device at 80r / min, sieve and classify it with a mechanical vibrating screen device, and obtain characteristic diameters of 2-5mm, 5-10mm, and 10-20mm , 20-30mm ceramic particles;

[0047] 3) Mix the ceramic block obtained in step 2) according to the mass ratio of 4:3:2:1, add it into the concrete according to the ratio of 50wt% and stir evenly, and obtain a mixed concrete slurry containing evenly distributed ceramic blocks;

[0048] 4) Use extrusion-type architectural 3D printing equipment to extrude and accu...

Embodiment 2

[0051] 1) The waste porcelain classified in Example 1 with a water absorption rate of 2% to 10% is crushed, ground, and sieved using a ball mill device under the condition of 300r / min to obtain waste porcelain powder with a particle diameter of less than 100 μm;

[0052] 2) Add the waste porcelain powder obtained in step 1) to the acrylic resin according to the content of 60vol%, fully stir and grind to obtain a uniform and stable ceramic slurry, wherein 5wt% powder quality dispersant carboxymethyl should be added to the photosensitive resin base cellulose;

[0053] 3) The photosensitive ceramic slurry obtained in step 2) is subjected to light-curing 3D printing to obtain a ceramic vase blank with a diameter of 200mm, a height of 500mm, and a thickness of 5mm;

[0054] 4) The vase blank obtained in step 3) is degreased at 600°C for 6 hours in a kiln, then sintered at 1300°C for 2 hours, and then cooled with the furnace to obtain the final ceramic product, such as figure 2 sh...

Embodiment 3

[0056] 1) The waste porcelain classified in Example 1 with a water absorption rate below 2% is crushed and ground by a ball mill under the condition of 400 r / min, and sieved with 150 mesh to obtain waste porcelain powder with a particle diameter of less than 100 μm;

[0057] 2) Add the waste porcelain powder obtained in step 1) to the epoxy resin according to the content of 60vol%, and mix in 2wt% glass powder, fully stir and grind to obtain a uniform and stable ceramic slurry, in which 3wt should be added to the photosensitive resin The dispersant oleic acid of % powder quality;

[0058] 3) The photosensitive ceramic slurry obtained in step 2) is subjected to light-curing 3D printing to obtain a ceramic jewelry blank;

[0059] 4) The ceramic jewelry blank obtained in step 3) was first degreased at 600° C. for 5 hours in a kiln, then sintered at 1100° C. for 3 hours, and then cooled with the furnace to obtain a final ceramic product.

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Abstract

The invention relates to a method for preparing a precast concrete component or a ceramic product from waste ceramics with a 3D printing technology. The method comprises steps as follows: classification: recovered waste ceramics are classified according to water absorption rates being 2% or lower, 2%-10% and 10% or higher, and the waste ceramics are cleaned and dried by airing respectively after classification; raw material treatment: the waste ceramics are broken, sieved and graded respectively according to firing temperatures, and ceramic particles are obtained; pulping: the smashed waste ceramics are added to concrete, photosensitive resin or a binding agent, and 3D printing raw materials for construction and ceramics are prepared; molding / sintering: the materials are subjected to 3D printing, and the precast concrete component or the ceramic product is obtained. According to the method, free molding of the waste ceramics can be realized with the 3D printing technology, so that theindividually customized product can be obtained with relatively low cost, and the method can be applied to wide precast concrete components and the ceramic products.

Description

technical field [0001] The invention belongs to the field of recovery and reuse of waste porcelain, and in particular relates to a method and product for utilizing waste porcelain with 3D printing technology. Background technique [0002] my country is a large country of ceramics production, and the production process and use of ceramic products will produce a large amount of waste porcelain, which is difficult to degrade no matter whether it is landfilled or incinerated. For waste porcelain, currently only a small number of large-scale formal enterprises will recycle their own waste products and mix them with new raw materials for production. At present, there is basically no large-scale centralized recycling and reuse in China. [0003] CN107473711A discloses an environment-friendly ceramic material and a preparation method thereof. In the method, waste porcelain is recovered and processed, mixed with other ceramic powders, then added with water, and then cast into grout a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B18/16C04B33/132C04B33/24B33Y40/00B33Y70/00
CPCB33Y40/00B33Y70/00C04B18/165C04B33/1324C04B33/1328C04B33/24C04B2111/00181C04B2235/3206C04B2235/3418C04B2235/36Y02P40/60Y02W30/91
Inventor 胡可辉万力
Owner 胡可辉
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