When I was in training, I was glued to every eye. Why is it a big chunk when it's welded?.
A large piece of solder is expected to point to the solder jointGeneral understanding, the activity of flux is not enough, two is the temperature setting, temperature 250 degrees as the standard, taking into account the dip, instantaneous temperature loss, it is set to 280-300 degrees.
I don't understand your question! Your grades in Chinese are good enough
1, this phenomenon basically has two possibilities: first, the flux is too small; two is the proportion of flux is too high, that is to say, the rosin content in the flux is too high.2, each flux supplier will have thinner and tin water. Solder water is added when the upper tin is changed and thinner is added when tin is easy to appear.
