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A technology for applying ceramic ball prestress

A ceramic ball and prestressing technology, which is applied in the field of transducers, can solve the problems that ceramic balls cannot be applied with prestressing, and achieve the effect of improving reliability and stability and improving voltage resistance performance

Active Publication Date: 2021-06-04
HAIYING ENTERPRISE GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a ceramic ball prestressing process to solve the problem that the ceramic ball cannot be prestressed at present

Method used

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  • A technology for applying ceramic ball prestress
  • A technology for applying ceramic ball prestress
  • A technology for applying ceramic ball prestress

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Embodiment 1

[0023] The invention provides a ceramic ball prestressing process, the process steps are as follows: image 3 shown. The application process of the ceramic ball prestressing force comprises the following steps:

[0024] Step S11, cutting the FRP into a spherically expanded shape;

[0025] Step S12, soaking the FRP with epoxy glue;

[0026] Step S13, coating the glass fiber reinforced plastic on the surface of the ceramic ball.

[0027] Specifically, the fiberglass is cut into such as Figure 4 The unfolded shape of the spherical surface is shown; wherein, the shape of the FRP is adapted to the size of the ceramic ball so as to fit the ceramic ball better. Soak the cut glass ball in epoxy glue, take it out and apply it on the surface of the ceramic ball, and finally tighten the ceramic ball and the glass fiber reinforced plastic together through a net bag, as shown in Figure 5 shown.

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Abstract

The invention discloses a technique for applying ceramic ball prestress, which belongs to the technical field of transducers. Firstly, the glass fiber reinforced plastic is cut into the shape after the spherical surface is expanded; then the glass fiber reinforced plastic is soaked with epoxy glue; then the glass fiber reinforced plastic is coated on the surface of the ceramic ball, and finally the ceramic ball and the glass fiber reinforced plastic are tightened together through a net bag. This process solves the problem of applying prestress to the ceramic ball, improves the withstand voltage performance of the ceramic ball, and greatly improves the reliability and stability of the ball piezoelectric transducer.

Description

technical field [0001] The invention relates to the technical field of transducers, in particular to a ceramic ball prestress application process. Background technique [0002] At present, most underwater acoustic transducers use piezoelectric ceramics as the active material, and a variety of piezoelectric transducers are formed by combining piezoelectric ceramics with different shapes and structural parts. The piezoelectric transducer mainly excites the internal piezoelectric ceramics through voltage, causing the piezoelectric ceramics to expand and contract, thereby realizing the emission of sound waves. However, the tensile stress of piezoelectric ceramics is much smaller than the compressive stress, which will lead to cracking of piezoelectric ceramics under the action of strong voltage. Therefore, when making piezoelectric transducers, precompressive stress is usually applied to piezoelectric ceramics to make them Tensile stress does not appear in the work. [0003] T...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B41/81
Inventor 苏彬
Owner HAIYING ENTERPRISE GROUP