Why is flux etching copper plate?
With the removal of flux oxides, thus the flux is corrosive to certain, but if the corrosion is too strong will damage the circuit and electronic components, so in order to secure the use of flux, each flux before being put into use will need to go through the steel corrosion test.
May be afraid of tin line will break when it?
The use of flux is:1. auxiliary heat conduction2. remove the oxide. Reduce the surface tension of the welded material3. remove the oil on the surface of the welding material and increase the welding area4. prevent reoxidation
