My take on this is that the zinc is redundant. I use petroleum jelly. Certainly not a conductor. At a microscopic level each metal surface in the joint has pronounced peaks and valleys. Only the peaks touch. The grease, being a fluid, displaces to fill the voids and the many localized pressure points ensure good metal-to-metal contact.
I've been doing this for years and never had even a warm contact. Chris On Jul 31, 2014 11:20 AM, "Bill Dube via EV" <[email protected]> wrote: > Here is an article describing how to make aluminum to copper connections, > and when to use (and when not to use) oxide inhibiting paste: > http://www.stabiloy.com/NR/rdonlyres/AD9F20D3-FA28-4662- > A013-A154C569435C/0/AluminumBuildingWireInstallationandTerminations.pdf > > The cell manufacturer gives no guidance as to the use of oxide inhibiting > paste, so one must try it both ways. I tried it without Noalox, and then > with Noalox. > > I have installed cells without the light sanding and paste, and the > connections were unsatisfactory. They got quite hot. The car performed > poorly and had limited range. The cells would not balance well. I then > performed the "lightly sand and apply Noalox" procedure, and did nothing > else, and all those issues vanished. No additional torque. No added or > removed components. No change whatsoever than to lightly sand and to add > Noalox. > > Some time later, a friend had identical issues with his conversion, and I > recommended the same treatment. He performed the "lightly sand and Noalox" > procedure, and it cured his issues in the identical manner as it had cured > mine. > > I now routinely use Noalox and I have not had any high resistance > connections. > > The Noalox prevents galvanic corrosion between the dissimilar metals in > the terminal by excluding moisture. Additionally, it has zinc particles > that provide a sacrificial anode, further guarding against corrosion > between the copper, aluminum, and the stainless steel bolt. In theory, this > is what one does to prevent galvanic corrosion. It also appears to work in > practice as well. > > I have actually done the experiment, and the results agree with theory. If > anyone else has performed a similar experiment and had contradictory > results, then I would enjoy hearing about it. > > Bill D. > > _______________________________________________ > UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub > http://lists.evdl.org/listinfo.cgi/ev-evdl.org > For EV drag racing discussion, please use NEDRA (http://groups.yahoo.com/ > group/NEDRA) > > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20140731/93f581ec/attachment.htm> _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org For EV drag racing discussion, please use NEDRA (http://groups.yahoo.com/group/NEDRA)
