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Manufacturing method of high-density thin piezoelectric ceramic atomizing dielectric sheet

A piezoelectric ceramic and atomizing medium technology, which is applied in the manufacturing field of high-density thin piezoelectric ceramic atomizing dielectric sheets, can solve the problem of difficulty in ensuring the consistency of green thickness, poor green density, and low product density, etc. problems, to achieve the effect of good consistency of product thickness and size, high density and low energy consumption

Inactive Publication Date: 2018-07-03
GUIZHOU ZHENHUA HONGYUN ELECTRONICS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method not only has low efficiency and high energy consumption, but also it is difficult to guarantee the consistency of the thickness of the green body; in addition, due to the low plasticity of dry pressing, the density of the green body is poor and easy to delaminate, resulting in product density low, fragile

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] 1) Put the mixed raw materials with an average particle size of 0.4-3 mm into an ultra-fine stirring ball mill for grinding for 4 hours, then transfer to an ultra-fine sand mill and grind for 2±0.1 hours to obtain an average particle size of 0.4-1.5 microns and a maximum particle size ≤ 3 micron green ceramic material;

[0022] The mixed raw materials are mixed by the following raw materials in parts by weight: Pb 3 o 4 57.6, ZrO 2 26. TiO2 2 8.2, Sb 2 o 3 7. Nb 2 o 5 1. SrCO 3 15. Bi 2 o 3 0. MnO 2 3. La 2 o 3 0;

[0023] 2) mixing the green porcelain material and polyvinyl alcohol in a weight ratio of 88.7:12.3 to make green porcelain material dough;

[0024] 3) rolling the above raw porcelain dough with a film rolling machine for 1 to 15 hours to obtain a film with a thickness of 0.5 to 0.8 mm;

[0025] 4) Make the above-mentioned diaphragm into a medium body, and stale for 12 hours;

[0026] 5) Finish rolling the aged medium body to a thickness of 0....

Embodiment 2

[0029] Each step is with embodiment 1; Wherein, the proportioning of each raw material described in step 1) is: Pb 3 o 4 75. ZrO 2 26. TiO2 2 23.5, Sb 2 o 3 0, Nb 2 o 5 5. SrCO 3 7. Bi 2 o 3 5. MnO 2 0.4, La 2 o 3 2;

Embodiment 3

[0031] Each step is with embodiment 1; Wherein, the proportioning of each raw material described in step 1) is: Pb 3 o 4 66.3, ZrO 2 19.1, TiO 2 15.8, Sb 2 o 3 3.5, Nb 2 o 5 3. SrCO 3 11. Bi 2 o 3 2.5, MnO 2 1.7, La 2 o 3 1.

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PUM

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Abstract

The invention discloses a manufacturing method of a high-density thin piezoelectric ceramic atomizing dielectric sheet, and belongs to the manufacturing method of piezoelectric ceramics. The method comprises the following steps: grinding Pb3O4, ZrO2, TiO2, Sb2O3, Nb2O5, SrCO3, Bi2O3, MnO2 and La2O3 into raw ceramic materials of 0.4-1.5 microns, then adding polyvinyl alcohol, rolling the raw ceramic materials into a membrane with a thickness of 0.5-0.8mm, carrying out aging for 12 hours, then carrying out finishing rolling to obtain a membrane with a thickness of 0.4-0.6mm, punching the membrane to obtain an annular disc, carrying out sintering at 1210-1250 DEG C to obtain the ceramic dielectric sheet. According to the preparation method provided by the invention, the defects of poor thickness consistency, low density, easy layering and break and the like of a piezoelectric ceramic dielectric sheet prepared by a traditional method are thoroughly overcome; and the preparation method provided by the invention has the advantages of high efficiency, good product thickness consistency, good electrical property consistency and the like, and is a method for preparing the piezoelectric ceramic dielectric sheet.

Description

technical field [0001] The invention relates to a method for preparing a piezoelectric ceramic dielectric sheet, in particular to a method for manufacturing a high-density thin piezoelectric ceramic atomized dielectric sheet. Background technique [0002] Piezoelectric ceramic atomizing medium sheet is a key component of humidification atomizer, medical atomizer and other equipment. It is a ring-shaped ceramic sheet with a thickness of 0.4-0.6 mm. At present, the piezoelectric ceramic atomizing dielectric sheet is usually granulated by ball milling of raw materials, then dry-pressed with a binder to form a green sheet, and finally sintered in air to form, and finally to be electroded and polarized. This method not only has low efficiency and high energy consumption, but also it is difficult to guarantee the consistency of the thickness of the green body; in addition, due to the low plasticity of dry pressing, the density of the green body is poor and easy to delaminate, resu...

Claims

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Application Information

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IPC IPC(8): C04B35/01C04B35/622
CPCC04B35/01C04B35/622C04B2235/3213C04B2235/3227C04B2235/3232C04B2235/3244C04B2235/3251C04B2235/3267C04B2235/3294C04B2235/3298C04B2235/5436C04B2235/5445C04B2235/6021C04B2235/656C04B2235/6567C04B2235/94C04B2235/95
Inventor 张田才吴云南吴寿贵王学杰秦洁
Owner GUIZHOU ZHENHUA HONGYUN ELECTRONICS