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Question:

How can the white powder appear on the circuit board one day after soldering soldering? What's wrong with the powder? Is there any way to change it? Thank you for your help

Answer:

There is too much rosin

I do have a problem now flux to find a friend to help me to do is spray welding flux and rosin flux

There's too much solid content. It should be organic acid plus too much. What's more, the solubility of your active agent and solvent is not very good.

What solvents do you use to clean rosin and flux? Can you make it yourself? It used to be the water, but now it's home. There's no water in the house
The stainless steel ring is dipped in Rosin when soldering, and there is a yellow stain on the surface. After washing with alcohol, there will be obvious marksThis regular code can be wiped off completely. It can not be polished
Influence of flux granularity on process
Silver copper phosphorus brazing welding electrode and a copper tube with no flux?
Can I use soldering iron without soldering flux?

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How can the white powder appear on the circuit board one day after soldering soldering? What's wrong with the powder? Is there any way to change it? Thank you for your help

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How can the white powder appear on the circuit board one day after soldering soldering? What's wrong with the powder? Is there any way to change it? Thank you for your help

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