Est. 1998 — 27 years of woodworking knowledge
you are correct, not line of sight
bill tindall
>Electrolysis is not a line of sight process. However, it is governed by E=IR . The solution has resistance so the more solution between the anode and cathode the lower the voltage. Obviously the"backside" of the cathode will be farther from anode, and hence, less, but not no, electrolysis.
current density discussion
bill tindall
>This author doesn't want to use the hydrogen bubbles for cleaning. This could make sense for the heavily rusted object he shows. I don't know. He provides no data on what would have happened at higher current density. He makes sage sounding statements about current density but this variable is near impossible to control on an irregular shaped object, so I question the importance without supporting data.
I clean at the highest current density I can muster. The hydrogen evolution will strip grease, paint and anything loose, for better or worse. Furthermore, there is a greater chance that some rust will be taken all the way back to iron and not stop at Fe3O4. This reduction is possible under some circumstances. On the other hand, I am usually cleaning something less degraded than the horseshoe. I never have rust remaining as he did in the horseshoe example.
If one wants to control current from a high current battery charger a simple way to do so is just place the object farther away from the anode. E = IR more solution between electrodes, more resistance, less current.
Salt water artifacts are cleaned, at least at first, at low current density in order to diffuse out all the chloride.
Would it help if I told you I used to use a Lisa?
Don Thompson - Cutler Ridge, Florida
>
Re: If you prick us, do we not bleed?�
Greg Sloop
>William...
I thought it would likely be obvious after the thread I replied to that I was jesting just as much as those suggesting a use for Dell's and Compaq's.
I'm sorry if you were offended.
I like teasing Mac people. It's no different in my opinion than those teasing those of us who use Linux or Unix - or the ultimate in cheap (both in cost and quality) hardware - the x86 clones.
Anyway. Hope you had a nice holiday. I'm out of town, or would have replied earlier.
Cheers,
Greg