I am an electronics factory in charge, there is a sticky feeling dip to complete the PCBA, we use the non cleaning flux, do not know the film does not affect the quality of products, there is no need to wash the plate? Please expert advice!What should I do with it? Is alcohol all right? By the way, what welding wire do you use when you repair welding? I think the solder wire inside the flux will also have such a problem!
I suggest you wash good Xintai solder cleaning plate with DT-78A water or cleaning agent DT-68A ultrasonic cleaning, welding surface water, flux residues should be caused by too much
Of course, it must be cleaned. In case the time is long, there is FLUX residue on the surface of the board! ~! I do PCB~, too! It's been a long timeJust use hot water to wash the water. It's better to add the brush to make it betterNo, there's very little soldering flux in it! ~!
This is my specialty. I have been in engineering and management in an electronic factory for over ten years. I have been doing technical and managerial work in 6 years. Most people give advice that is one-sided and does not take on practical significance. Of course, they are sincere in their zeal. Many electronic engineers have always been partial to flux knowledge, and they can not get some specialized knowledge of flux.Disposable flux is relative, you ask the supplier what is the definition of flux, that is disposable after welding without cleaning, it is dangerous to generalize. Several factors:1. what kind of products do you have (circuit characteristics: high voltage, low voltage, high frequency, low frequency)?.2. surface insulation impedance parameter of flux. (true, don't Scribble data)3. customer requirements for PCB surface cleanliness.4. working environment of products.Disposable solder wire resin material or resin solid content, good safety, can not accept the appearance of cleaning, improper cleaning will produce white powder.Flux welding after the residue of many, sticky hands (some cold after it does not stick) is not the reason for cleaning, this is the appearance of the layman's point of view. WW112266@126.COM
