Lauri Lehtinen wrote:
>
> Jarrid wrote:
> >
> >Any time you plate "or replate" pre-stressed metals, the plating process
> >itself makes the plated part weaker and more brittle. The reason is
> >Hydrogen Embrittlement, and the result can be "stress broken" spokes
> >and the like.
> >
> >
> There is a possibility to avoid this hydrogen penetration, you must adjust
> the pH of the plating liqid. But I don't remember how!! Every now and then
> you see chrome plated springs, and hydrogen penetration makes springs
> specially brittle if you run plating in pH where hydrogen forms as free
> gas.
>
> This embrittlement is due to hydrogen gas penetrating to the molecular
> structure of steel. When stressed, this gas wants to inflate and then it
> breaks steel.
>
> As long as new spokes are available at reasonable price, wheels should be
> rebuild. There is allso a tiny change that there is solid plating under the
> paint.
>
> Lauri
Egads you guys are getting to darn technickle fer my seriesll
chuck series ll B9119821
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