[sdiy] problematic sh101

[Scott E.]

Forgive my ignorance, but just what is a "permanent" tip? The longest I 
have ever had one last is about six months of regular soldering.

Scott
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ASSI wrote:
> The tip most likely has a copper core and is plated with Fe/Ni. Once the 
> plating is scratched through (that happens fast), the copper readily 
> dissolves in solder... If you don't want to pony up for "permanent" 
> tips, you can file the plating away where the solder should wet and then 
> carefully hammer the tip into shape (again). The hammering hardens the 
> surface so that the erosion takes place at a much slower pace. Plus 
> without the plating the tip is much easier to coat with solder to start 
> with.
> 
> 
> Achim.