Common problems of piezoelectric diaphragms:

Today, let's talk about the common quality problems of buzzer films, so as to facilitate your purchase and distinguish the quality.

1. Part of ceramic disc of buzzer film falls off:

First: there is a problem with the glue of buzzer tablet. The glue quality is poor or the amount of epoxy resin adhesive is not enough

Second: copper or steel sheet, nickel alloy sheet bending deformation.

Third: when the ceramic sheet and substrate are bonded, the curing temperature and time are not enough or too much.

2. piezoelectric ceramic disks has no sound:

First: piezoelectric ceramic vibrating plate (silver plate) is not polarized

Second: the piezoelectric ceramic vibrating plate (silver plate) is dark cracked, and the positive / negative pole of the silver plate is short circuited.

Third: the piezoelectric ceramic vibrating plate (silver plate) is not bonded and cured well with the metal plates.

FBelec avoid above problem in order to guarantee the quality for customers.