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bananasiong said:I thought use solder to do tinning?
OIC, thanks. I thought the flux is used only to make the solder to flow smoother.Sceadwian said:bananasoing, it's called oxides =) If the oxides are causing the solder joint to be difficult to make you're not using flux. Flux is a cleaner and protector for the joint under formation that prevents it from being exposed to air so that oxides don't form and ruin it, it also decays rapidly under heat. Most solders have a resin core which acts as flux the first time round, subsequent heatings require flux paste to be applied or the joint quickly deteroriates with exposed to the air heating, oxidizing it internally and make it brittle.
The exact same thing happens during stick welding, a sacrificial flux resin is on the outside of the stick of metal to be welded preventing it from coming into contact with the air.
Sceadwian said:I have never heard of nickle plateing a PCB it's a crappy material to solder to. If you need corrosion resistance tin the board, solder it then coat it with a spray sealer.
chemelec said:I Think you should try it Sometime.
Nickel Solders VERY Well with a Tin/Lead Solder.
mramos1 said:Chemelec
What is needed to do that (Nickel plate). 9VDC battery? Just plain water?
My Grandfather is out visiting and said he wanted to use old junk silver coins to tin a board and see how it works. Figure I will pass that on to him. Meanwhile we are going to buy the tin solution (power kind and try it; we have never used the power kind).
But we will try it your way as well with silver.
Also, I have the new lead free solder, and I am so glad I have many spools of the tin/lead left. That lead melts so nice..