搜索
Search
img
News

News

News
当前位置:
Homepage
/
/
About piezoelectric ceramic sheet

About piezoelectric ceramic sheet

  • Categories:News
  • Author:
  • Origin:
  • Time of issue:2020-09-07 13:52
  • Views:

(Summary description)Piezoelectric ceramic chip is an electronic sound element. Piezoelectric ceramic dielectric material is placed between two copper circular electrodes. When an AC audio signal is connected to the two electrodes, the piezoelectric chip will frequency according to the size of the signal. Vibration occurs and a corresponding sound is produced.

About piezoelectric ceramic sheet

(Summary description)Piezoelectric ceramic chip is an electronic sound element. Piezoelectric ceramic dielectric material is placed between two copper circular electrodes. When an AC audio signal is connected to the two electrodes, the piezoelectric chip will frequency according to the size of the signal. Vibration occurs and a corresponding sound is produced.

  • Categories:News
  • Author:
  • Origin:
  • Time of issue:2020-09-07 13:52
  • Views:
Information

Piezoelectric ceramic chip is an electronic sound element. Piezoelectric ceramic dielectric material is placed between two copper circular electrodes. When an AC audio signal is connected to the two electrodes, the piezoelectric chip will frequency according to the size of the signal. Vibration occurs and a corresponding sound is produced.
When voltage is applied to piezoelectric ceramics, mechanical deformation will occur with changes in voltage and frequency. On the other hand, when the piezoelectric ceramic is vibrated, an electric charge is generated. Using this principle, when an electrical signal is applied to a vibrator composed of two piezoelectric ceramics or a piezoelectric ceramic and a metal sheet, so-called bimorph element, ultrasonic waves will be emitted due to bending vibration. Conversely, when ultrasonic vibration is applied to the piezoelectric bimorph element, an electrical signal is generated. Based on the above effects, piezoelectric ceramics can be used as ultrasonic sensors.


Piezoelectric ceramic chip is an electronic sound element. Piezoelectric ceramic dielectric material is placed between two copper circular electrodes. When an AC audio signal is connected to the two electrodes, the piezoelectric chip will frequency according to the size of the signal. When vibration occurs, a corresponding sound is produced. Piezoelectric ceramic sheets are widely used in electronic appliances such as toys, pronunciation electronic watches, electronic instruments, electronic clocks, timers, etc. due to their simple structure and low cost.


   process
The flow chart is as follows: Ingredients-mixing and grinding-pre-firing-secondary grinding-granulation-molding-plastic ejection-sintering into porcelain-shape processing-electrode-high-voltage polarization- -Aging test.

   1. Ingredients: pre-process the materials to remove impurities and damp, and then weigh various raw materials according to the formula ratio. Note that a small amount of additives should be placed in the middle of the anise.
   2. Mixing and grinding: The purpose is to mix and grind various raw materials to prepare conditions for complete solid-phase reaction. Generally, dry grinding or wet grinding is adopted. Dry milling can be used for small batches, and stirring ball milling or jet pulverization can be used for large batches, which has higher efficiency.
   3. Pre-sintering: The purpose is to synthesize piezoelectric ceramics by solid-phase reaction of each raw material at high temperature. This process is very important. It will directly affect the sintering conditions and the performance of the final product.
   Fourth, secondary fine grinding: The purpose is to vibrate and mix the pre-fired piezoelectric ceramic powder to finely grind, so as to lay a solid foundation for the uniform performance of the porcelain.
   5. Granulation: The purpose is to make the powder form high-density particles with good fluidity.
   Six. Forming: The purpose is to compact the pelletized material into a blank of the required prefabricated size.
   Seven, plastic ejection: the purpose is to remove the binder added during granulation from the blank.
   8. Sintering into porcelain: the blank is sealed and sintered into porcelain at high temperature. This link is very important.
   Nine. Shape processing: Grind and process the burned product to the required finished size.
  10. Electrode: set a conductive electrode on the required ceramic surface. The general methods include silver layer infiltration, chemical deposition and vacuum coating.
  11. High-voltage polarization: Orientation of the internal electrical domains of the ceramic, so that the ceramic has piezoelectric properties.
  12. Aging test: After the ceramic performance is stable, check the various indicators to see if it meets the expected performance requirements.

Guangzhou Panyu Datong Electronics Co., Ltd    

Phone:13342813177

Tel:020-84765362 

Email:709134590@qq.com

Add:Zidajin Creative Park, Xingye Road, Nancun Town, Panyu District, Guangzhou, China     

Factory:Building A4-A6, Rongjiang Industrial Park, Rongjiang, Guizhou, China

Datong

WeChat

Datong

Mobile

© Guangzhou Panyu Datong Electronics Co., Ltd    粤ICP备2020098906号     Powered by 300.cn