Ceramic forming method, ceramic preparation method and product

A molding method and ceramic technology, applied in ceramic products, ceramic molding machines, manufacturing tools, etc., can solve problems such as bending deformation, achieve the effects of reducing bending deformation, improving molding rate and pass rate

Pending Publication Date: 2022-06-21
SHANDONG GUIYUAN ADVANCED CERAMICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the defect that the ceramic injection molding in the prior art is prone to bending deformation, thereby providing a ceramic molding method, a ceramic preparation method and a product

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  • Ceramic forming method, ceramic preparation method and product
  • Ceramic forming method, ceramic preparation method and product
  • Ceramic forming method, ceramic preparation method and product

Examples

Experimental program
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Effect test

Embodiment 1

[0055] The present embodiment provides a ceramic molding method, comprising the following steps:

[0056] (1) Weigh 29.12 g of polyacrylic acid amine and 12.48 g of Isobam104, add 960 g of deionized water and stir to dissolve, then pour into a ball mill stirring tank, reduce the rotational speed to 50 r / min after ball milling at 200 r / min for 10 min, and add 100 g of alumina After the ceramic powder is uniformly dispersed, continue to add 100g of alumina ceramic powder, repeat the operation until all 4160g of alumina ceramic powder is uniformly dispersed, increase the speed to 200r / min, stir for 1h, and then pour the slurry into the vacuum stirring tank Vacuum degassing was carried out for 20 min in the process to obtain alumina ceramic slurry with a solid content of 54 vol% and a viscosity of 0.4 Pa·S at room temperature;

[0057] (2) The bottom plate of the mold is a ceramic flat membrane with a pore size of 0.1 mm (the ceramic flat membrane support and filter layer are made...

Embodiment 2

[0065] The present embodiment provides a ceramic molding method, comprising the following steps:

[0066] (1) Weigh 11.2 g of polyacrylic acid amine and 2.24 g of Isobam104, add 220 g of deionized water and stir to dissolve, then pour into a ball mill stirring tank, reduce the speed to 100 r / min after ball milling at 250 r / min for 10 min, and add 100 g of alumina After the ceramic powder is uniformly dispersed, continue to add 100g alumina ceramic powder, repeat the operation until all 1120g alumina ceramic powder is uniformly dispersed, increase the speed to 250r / min, stir for 1h, and then pour the slurry into the vacuum stirring tank Vacuum degassing was carried out for 15 min in the process to obtain an alumina ceramic slurry with a solid content of 56 vol% and a viscosity of 0.5 Pa·S at room temperature;

[0067] (2) The bottom plate of the mold is a ceramic flat membrane with a pore size of 0.1 mm (the ceramic flat membrane support and filter layer are made of alumina cer...

Embodiment 3

[0073] The present embodiment provides a ceramic molding method, comprising the following steps:

[0074] (1) Weigh 24g of polyacrylic acid amine and 30g of Isobam104, add 1000g of deionized water and stir to dissolve, then pour it into a ball mill stirring tank, reduce the rotational speed to 30r / min after ball milling at 150r / min for 20min, and add 150g of zirconia ceramic powder After uniform dispersion, continue to add 150g zirconia ceramic powder, repeat the operation until all 6000g zirconia ceramic powder is uniformly dispersed, increase the speed to 150r / min, stir for 1.5h, and then pour the slurry into the vacuum stirring kettle Carry out 30min vacuum degassing to obtain zirconia ceramic slurry with a solid content of 50vol% and a viscosity of 0.2Pa·S at room temperature;

[0075] (2) The bottom plate of the mold is a ceramic flat membrane with a pore size of 0.1 mm (the ceramic flat membrane support and filter layer are made of zirconia ceramics), and the side walls ...

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Abstract

The invention belongs to the technical field of ceramic forming, and particularly relates to a ceramic forming method, a ceramic preparation method and a product, and the ceramic forming method comprises the following steps: injecting ceramic slurry into a mold of which a water filtering layer is a ceramic flat sheet membrane, and curing and forming under the environment that the temperature is less than 35 DEG C and the relative humidity is 50-80%; the aperture of the ceramic flat sheet membrane is less than or equal to 0.1 mu m. By controlling the aperture of the ceramic flat sheet membrane and the temperature and humidity in the environment, the dehydration rates of the upper and lower surfaces of the ceramic green body can be kept consistent, so that the upper and lower sizes in the green body forming process are consistent, and the bending deformation phenomenon of the green body after later drying is reduced.

Description

technical field [0001] The invention relates to the field of ceramic molding, in particular to a ceramic molding method and a ceramic preparation method and product. Background technique [0002] Ceramic molding is a process of processing ceramic powder into ceramics with a certain size and shape. At present, the existing domestic molding methods include dry molding (dry pressing and isostatic pressing), plastic molding (extrusion, injection and calendering). ), casting molding (grouting, filtration, casting, direct coagulation, temperature-induced flocculation and coagulation), and specialty molding (3D printing). [0003] Gel injection molding technology has attracted widespread attention since it was successfully developed by Oak Ridge National Laboratory in the United States. Compared with traditional processes, gel injection molding has the following advantages: it can be directly cured in the mold and is suitable for preparing complex-shaped ceramics; The solid conten...

Claims

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Application Information

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IPC IPC(8): B28B1/26B28B11/24C04B38/00C04B35/10C04B35/48C04B35/46C04B35/14C04B35/565C04B35/622C04B35/634
CPCB28B1/26B28B1/261B28B1/262B28B11/243C04B38/0054C04B35/10C04B35/48C04B35/46C04B35/14C04B35/565C04B35/622C04B35/63444C04B35/63404
Inventor 徐海森郑凯古娜杨东亮于洋郭明玉
Owner SHANDONG GUIYUAN ADVANCED CERAMICS
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