Manufacturer supplies piezoelectric ceramic PZT43- Φ 38x Φ 13x6.35 ultrasonic transducer black sheet

Description :

　　Product Introduction

　　The process flow chart is as follows: ingredients - mixing and grinding - pre firing - secondary grinding - granulation - forming - plastic extrusion - sintering into porcelain - shape processing - electrode - high voltage polarization - aging testing.

　　1、 Ingredients: Pre treat the ingredients, remove impurities and moisture, and then weigh various raw materials according to the formula ratio. Pay attention to placing a small amount of additives in the middle of the large ingredients.

　　2、 Mixing and grinding: The purpose is to mix and grind various raw materials evenly to prepare conditions for complete solid-state reaction during pre firing Generally, dry grinding or wet grinding methods are adopted. Small batches can be processed by dry grinding, while large batches can be processed by stirring, ball milling, or air flow crushing, with higher efficiency.

　　3、 Pre firing: The purpose is to conduct solid-state reactions of various raw materials at high temperatures to synthesize piezoelectric ceramics This process is very important. It will directly affect the sintering conditions and the performance of the final product.

　　4、 Secondary fine grinding: The purpose is to finely mix and grind the pre fired piezoelectric ceramic powder, laying a foundation for uniform ceramic performance.

　　5、 Granulation: The purpose is to form high-density and flowable particles from the powder.

　　6、 Molding: The purpose is to press the prepared granules into the required pre made size blank.

　　7、 Plastic extrusion: The purpose is to remove the adhesive added during granulation from the blank.

　　8、 Sintering into porcelain: Seal and sinter the blank into porcelain at high temperature. This stage is quite important.

　　9、 Appearance processing: Grind the burnt product to the required finished size.

　　10、 Electrode: Install conductive electrodes on the required ceramic surface. The general methods include silver layer sintering, chemical deposition, and vacuum coating.

　　11、 High voltage polarization: orients and arranges the internal domains of ceramics, thereby endowing them with piezoelectric properties.

　　12、 Aging test: After the ceramic performance stabilizes, test various indicators to see if it meets the expected performance requirements.

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• Piezoelectric ceramic sheet