Vance, (or other specialists) Anodized aluminum works nicely
if well done. There are pinhole issues with it that
cause some problems, and threading is always an issue. Any thread in aluminum
must be carefully cleaned and filled so that salt water is excluded, as the
salts will cause a buildup and jam SS bolts tight. >> Yep I know the
problem with jammed bolts. Today I assembled some pieces with anti seize paste.
But it looks like it contains copper particles.; wrong?? Emile -----Original Message----- Magnesium corrodes quickly but Zink on a sub with Alu parts seems not useful to me..
Electric leakage; should be avoided. Does anybody know the right way to measure it??
I prefer to anodise the Alu parts. Looks good, is corrosion resistant and the ALu is not conductive anymore.
Delrin/nylon washers are also a good idea!
Emile
-----Oorspronkelijk bericht----- Van: owner-personal_submersibles@psubs.org [mailto:owner-personal_submersibles@psubs.org] Namens Vance Bradley Verzonden: zaterdag 12 mei 2012 20:58 Aan: personal_submersibles@psubs.org Onderwerp: Re: [PSUBS-MAILIST] aluminum to steel
Every week? Sounds like a high resistance short to ground. Our zincs lasted 2-3 YEARS in and around Norway. For anodes, we used zincs on steel and magnesium on aluminum. They all lasted a good while unless there was an electrical problem, which we corrected ASAP. Vance
Sent from my iPhone
On May 12, 2012, at 12:14 PM, MerlinSub@t-online.de wrote:
> Sounds right. > But in saltwater use you have still to use zink anodes to protect your aluminium. > On Kreideseesub we have to exhange the anodes in salt water (Norway) every week.. > > vbr Carsten > > "ojaivalleybeefarm @dslextreme.com" <ojaivalleybeefarm@dslextreme.com> schrieb: >> Hi, >> I've been contemplating using aluminum as a truss type structure >> to hold one part of my sub. As long as I isolate the two dissimilar metals >> I should be ok ? Right ? Where the it is bolted together I was going to >> have a separating "gasket" made out of rubber or a tough plastic. and then >> where the bolts go through I would have sleeves around the bolts. Sound ok >> ? Any comments would be greatly appreciated. thanks. >> >> Brian >> > > > > > ************************************************************************ > ************************************************************************ > ************************************************************************ > The personal submersibles mailing list complies with the US Federal > CAN-SPAM Act of 2003. Your email address appears in our database > because either you, or someone you know, requested you receive messages > from our organization. > > If you want to be removed from this mailing list simply click on the > link below or send a blank email message to: > removeme-personal_submersibles@psubs.org > > Removal of your email address from this mailing list occurs by an > automated process and should be complete within five minutes of > our server receiving your request. > > PSUBS.ORG > PO Box 53 > Weare, NH 03281 > 603-529-1100 > ************************************************************************ > ************************************************************************ > ************************************************************************ >
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