8 Most Concerned Questions of Piezoelectric Ceramics Buyers

Most piezoelectric ceramics buyers don't have the time to compare good suppliers, nor can they differentiate between good piezoelectric ceramics manufacturing factories. Piezoelectric ceramics purchasing is typically customized according to projects. There is no standard acceptance process and evaluation system. Therefore, we have compiled many questions regarding piezoelectric ceramics purchasing to help buyers better select their desired products.   1、Piezoelectric Ceramics Pricing Since piezoelectric ceramics products are customized according to project requirements, their prices are uncertain. However, there are some standardized piezoelectric ceramics available for general use, and we have provided some reference prices for you.   [table id=29 /]   2、Minimum Order Quantity for Piezoelectric Ceramics The minimum order quantity varies from company to company. Some companies may require a purchase contract of at least $10,000 each time. Chinese companies have an advantage in this aspect, as they offer a higher cost-performance ratio. For example, He-Shuai Company has no requirement for the minimum order quantity, catering to different scales of piezoelectric ceramics buyers.   3、Piezoelectric Ceramics Production Lead Time Depending on the complexity of the customized piezoelectric ceramics products, the production lead time varies. Generally, the production time for commonly used piezoelectric ceramics products is about 20-25 days. Air express takes 5-7 working days, while sea shipping takes 30-35 days.   4、Piezoelectric Ceramics Quality Standards A qualified piezoelectric ceramics product must undergo a strict testing process, as only a standardized testing process can ensure the product's quality. In the end, we will provide a product test report. First step: Physical properties: appearance, size specifications, electrode surface finish, internal pores in the ceramic, edge fragmentation, scratches, etc. Second step: Electrical testing: free relative dielectric constant, dielectric loss, electromechanical coupling system, frequency constant, piezoelectric strain constant, etc. Third step: Reliability performance: acid and alkali resistance, corrosion resistance, oxidation resistance, aging resistance, etc.   5、Piezoelectric Ceramics Components Technical Specifications These common parameters of piezoelectric ceramics products are measured using instruments to determine if they fall within the project requirements. Piezoelectric constant: As one of the most important indicators, the piezoelectric constant represents the conversion rate of electrical energy into mechanical energy and vice versa. However, many other factors influence this, such as working temperature, limiting voltage, resonance impedance, static capacitance, displacement, etc.   Generally required test parameters include: Piezoelectric constant: The piezoelectric constant is a parameter measuring the strength of the piezoelectric effect in materials, directly related to the piezoelectric output sensitivity.   Elastic constant: The elastic constant and stiffness of piezoelectric materials determine the intrinsic frequency and dynamic characteristics of piezoelectric devices.   Dielectric constant: For a piezoelectric component of a certain shape and size, its inherent capacitance is related to the dielectric constant, which in turn affects the frequency lower limit of the piezoelectric sensor.   Mechanical coupling coefficient: In the piezoelectric effect, its value equals the square root of the ratio of the converted output energy (such as electrical energy) to the input energy (such as mechanical energy); it is an important parameter measuring the electromechanical energy conversion efficiency of piezoelectric materials.   Resistance: The insulation resistance of piezoelectric materials will reduce charge leakage, thereby improving the low-frequency characteristics of piezoelectric sensors.   Curie point: The temperature at which piezoelectric materials begin to lose their piezoelectric properties is called the Curie point.   Mechanical quality factor: The ratio of mechanical energy stored by the piezoelectric resonator in resonance to the mechanical energy lost in one cycle.   6、Certifications and Compliance of Piezoelectric Ceramics Manufacturers/Suppliers Qualified piezoelectric ceramics suppliers have their own production workshops, complete production process flows, and have passed ISO or CE certifications. For example, the Chinese piezoelectric ceramics manufacturer He-Shuai Company has the following features: Possessing its own exclusive advanced ceramic formula Providing customized piezoelectric ceramics services Owning a complete production process flow and workshop Having the ability and response speed to solve problems 7、After-sales Support and Technical Assistance for Piezoelectric Ceramics Qualified piezoelectric ceramics manufacturers should have their own engineering research and development teams and after-sales service teams. They should have their own websites, e-mails, service phone numbers, etc., as well as the ability and response speed to solve problems. They should provide test reports, offer useful suggestions, and replace damaged products free of charge.   8、Payment Terms and Shipping Options for Piezoelectric Ceramics Orders These requirements may vary from company to company. We provide He-Shuai Company's requirements for your reference: Payment terms Wire transfer, Western Union, PayPal, etc. Both are acceptable. Shipping options There are different shipping methods to choose from. For small packages (less than 50 kg or 2-3 packages), we recommend using air express like UPS, DHL, FedEx, SF, TNT, etc. It's fast but expensive, making it a good choice for urgent orders. It only takes 7-10 days. Sea shipping is the most economical option, taking much longer than air shipping, around 25-35 days. However, the volume must be at least 1 cubic meter. Product packaging Piezoelectric ceramics products are fragile, so proper and secure packaging is essential. This requires a long-term accumulation of experience. A good piezoelectric ceramics manufacturer is synonymous with good packaging.   Conclusion By considering the questions and information provided, piezoelectric ceramics buyers can better understand the factors to look for when selecting a reliable manufacturer or supplier. This will ultimately lead to a more satisfactory purchasing experience and better-quality piezoelectric ceramic products.