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
No, rosin is soluble in alcohols. It should be rubbed off. Is not enough alcohol, try anhydrous alcohol.
Stainless steel welding has not been heard to use rosin flux ah. Do not know what specific stainless steel material you?However, due to the large heat welding of stainless steel welding itself, the weld edge will produce a layer of red or black oxide layer. The welding of stainless steel pipe, need to charge protection of Ar gas tube is in, in order to prevent the emergence of this oxide layer. Usually the pipe outside slightly the oxide layer on the surface of polishing sheet for grinding off OK.Does not recommend the use of rosin, because in the process of welding, high calorie, rosin as organic solvent, containing C and H ions. Hydrogen ions are easy to crack, carbon and stainless steel in Cr ion can happen carbonation precipitation of chromium carbide, corrosion resistance of stainless steel.
Try toluene and dichloromethane (poisonous). Stainless steel cleaner (with polishing) is not allowed". Use Baidu Search
