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Monolithic ceramic tube and preparation method thereof

A ceramic tube and monolithic technology, applied in tubular capacitors, components of fixed capacitors, dielectrics of fixed capacitors, etc., can solve the problems of poor electrical performance indicators and resistance to external forces, heavy production equipment, and large investment. Achieve the effect of small size of production equipment, low energy consumption and low investment

Active Publication Date: 2010-09-01
张志伟 +4
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

The products made by this process are bulky, poor in electrical performance and resistance to external forces, heavy in production equipment, large in investment, and high in energy consumption.

Method used

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  • Monolithic ceramic tube and preparation method thereof
  • Monolithic ceramic tube and preparation method thereof
  • Monolithic ceramic tube and preparation method thereof

Examples

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Effect test

Embodiment Construction

[0029] Such as image 3 As shown, there are two axially embedded electrodes 1 in the wall thickness of the monolithic ceramic tube, and one axially external electrode 2 on the outer wall surface.

[0030] The preparation process of the monolithic ceramic tube is as follows:

[0031] Ultra-thin (0.003mm) flexible ceramic diaphragm (choose material X7R or NPO diaphragm according to the requirements of the drawing) is spread on the glass plate, and cut according to the size of the drawing with a ruler or a utility knife; (2) Melt paraffin at 40°C±2 ℃Apply evenly on the surface of the printing transfer plate, and spread the film on the plate surface; (3) Hold both ends of the printing transfer plate, put it into the positioning pin of the screen printing machine, and print several parallel embedded electrodes (palladium silver E2369) on the film ;(4) Put the printing transfer plate and the diaphragm into the electric oven, bake at 40°C-50°C for 25-30 minutes and take it out; Aft...

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Abstract

The invention relates to a monolithic ceramic tube and a preparation method thereof, solving the problems of heavy traditional ceramic tube and manufacture equipment, high energy consumption and poor electric performance indexes and anti-external action of the product. At least one axial embedded electrode is arranged on the inner wall of the ceramic tube, both ends of the embedded electrode are arranged on both end surfaces of the ceramic tube, and an axial external electrode is arranged on the surface of the inner wall or the outer wall of the ceramic tube.

Description

Technical field: [0001] The invention relates to a tube body of a ceramic tube capacitor and a preparation method thereof. Background technique: [0002] In the existing ceramic tubular capacitor, one electrode is coated and burned on the inner surface of the tube, and another electrode is coated and burned on the outer wall of the tube. The manufacturing process is to use powder dry pressing or wet mud vacuum extrusion to make ceramics. The tube body is then coated with electrodes on the inner and outer walls. The products made by this process are bulky, have poor electrical performance indicators and resistance to external forces, and the production equipment is cumbersome, with large investment and high energy consumption. Invention content: [0003] The object of the present invention is to provide a monolithic ceramic tube with simple manufacturing process, low cost, small product volume, good electrical performance index and good resistance to external force and its...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G4/12H01G4/28
Inventor 张志伟张启嵎范荣李晓萍万顺发
Owner 张志伟
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