How to Clean PCB Properly With Ultrasonic

Ultrasonic cleaning technology is a mature technology outside the country,is applied widely in the fields of mechanics,electronics industries.The cleaning of PCB after soldering is one of the important applications,it is a common application inside the country too.But we have to say that many factories don′t know how to clean,so they often make many mistakes when they are applying ultrasonic cleaning technology.Introduce the fundamental theory of ultrasonic cleaning technology and provide some advices on how to clean properly.