Zibo Yuhai Electronic Ceramic Co., Ltd.
Address : No.57 Chuangye Road, Development Area Boshan, Zibo City, Shandong Prov. P.R. of China
Tel : +86-0533-4230012
Fax : +86-0533-4231700
Email : sales@zbyuhai.com

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Piezoelectric Ring For Ultrasonic Welding Transducer

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Product Description

Parameters

Piezoelectric ceramic ring

Sizes from 3mm up to 180mm
Thickness from 0.2mm up to 25mm
Choice of metallisation (Silver, Nickel, Gold and others on request)
Wide choice of PZT formulations

Applications: High power ultrasonic welding transducer

Material: PZT-8

Piezoelectric rings dimension:

OD50*ID20*6mm
OD50*ID17*6.5mm
OD50*ID20*5mm
OD50*ID17*5mm
OD50*ID23*6.5mm
OD60*ID30*10mm
OD70*ID30*10mm

Features

very higher mechanical quality factor and lower dielectric loss

much higher power handling capability

Piezoelectric Ceramic Material: PZT-82

Piezoelectric elements technical data:
Dimensions:	Outer diameter 50mm, inner diameter 20 thickness 6mm
Radial frequency Fr:	33KHz ± 2KHz
Mechanical Coupling Coefficient K31	≥0.34
Dielectric Loss tg δ:	≤ 0.3%
Static capacitance Cs:	2500pF ± 12.5%

Test Condition: 25±3 °C 40~70% R.H.

fr, Zm, Kr => Radial mode vibration

Cs tanδ => LCR meter at 1KHz 1Vrms

Hard PZT

High power or "hard" ceramics can withstand high levels of electrical excitation and mechanical stress. These materials are suited for high voltage or high power generators and transducers.

PZT-4 Series

This material range is ideally suited for ultrasonic cleaning, sonar, and other high power acoustic radiation applications. These materials are designated as PZT-4 series type materials and are capable of producing large mechanical drive amplitudes while maintaining low mechanical and dielectric losses. In addition, it can be used under both constant and repetitive conditions.

PZT-8 Series

This material range is used in high power applications, even though its piezoelectric activity level is slightly lower than PZT-4 series types. With an extremely high mechanical quality factor and extremely low loss factor, PZT-8 series materials have the ultimate power handling capability.

P-41	is equal to PZT-4D hard PZT. It is designed for higher dielectric constant, high Q m , high coercive field, high coupling and high stiffness required high power high driving transducers etc.
P-42	Is a modified hard PZT, higher dielectric constant of P-41.
P-43	is a modified hard PZT. It is developed for higher dielectric constant, high coupling and high stiffness required high power high driving etc. transducers
P-82	Is equal to PZT-8, hard PZT for higher mechanical quality factor, lower dielectric loss required and much higher power handling capability etc. transducers.
PCrN-4	is a modified PZT dedicated for extremely high power high driving etc. dual function of receiver and transmiting transducer.
PbaS-4	is a modified hard PZT developed for extremely high dielectric constant, high Q m , high stiffness and low dissipation factor required high frequency transducers etc.