[Elecraft] OT: aluminum oxide

2010-10-21 Thread 2Cents
Thanks to everyone who responded to my inquiry about freeing seized antenna parts. I received many good ideas and in response to someone who asked that I post a summary, here it is: Put stainless steel hose clamps on both pieces as a place to fasten your pipe wrenches--they grip better than plain

Re: [Elecraft] OT aluminum oxide

2010-10-19 Thread David Christ
I replied off list as per his request but as others are replying on list I think I should get this out to the entire group. Lye dissolves the aluminum. Ammonia is supposed to dissolve the oxide. David * This is the same thing as having an aluminum seatpost stuc

Re: [Elecraft] OT aluminum oxide

2010-10-19 Thread Mel Farrer
Also know as Penetrox A at your local electrical supply house. Mel From: WILLIS COOKE To: James Sarte ; 2Cents <2ce...@charter.net> Cc: elecraft@mailman.qth.net Sent: Tue, October 19, 2010 1:42:41 PM Subject: Re: [Elecraft] OT aluminum oxide What is

Re: [Elecraft] OT aluminum oxide

2010-10-19 Thread ussv dharma
> Subject: Re: [Elecraft] OT aluminum oxide > To: "James Sarte" , "2Cents" <2ce...@charter.net> > Cc: elecraft@mailman.qth.net > Date: Tuesday, October 19, 2010, 10:42 AM > What is Break Free?  Where do you > get it?  Does it always work

Re: [Elecraft] OT aluminum oxide

2010-10-19 Thread James Sarte
- > *From:* James Sarte > *To:* 2Cents <2ce...@charter.net> > *Cc:* elecraft@mailman.qth.net > *Sent:* Tue, October 19, 2010 3:35:01 PM > *Subject:* Re: [Elecraft] OT aluminum oxide > > Hi Chuck, > > I usually have good results with Break Free and

Re: [Elecraft] OT aluminum oxide

2010-10-19 Thread WILLIS COOKE
What is Break Free?  Where do you get it?  Does it always work, on only sometimes?  Willis 'Cookie' Cooke K5EWJ From: James Sarte To: 2Cents <2ce...@charter.net> Cc: elecraft@mailman.qth.net Sent: Tue, October 19, 2010 3:35:01 PM Subject: R

Re: [Elecraft] OT aluminum oxide

2010-10-19 Thread James Sarte
Hi Chuck, I usually have good results with Break Free and a mallet. I usually let the solution soak for a bit then tap around until the tubes dislodge. YMMV depending on how bad things have oxidized. I usually also put some anti-seize around joints when putting things back. James K2QI On Tue,

Re: [Elecraft] OT aluminum oxide

2010-10-19 Thread Rick Dettinger
The lye definitely does eat away the pure aluminum, as I learned in my miss spent youth! The fireballs were impressive, also, and we were darn lucky. I think you would need to eat through the good metal just to get to the oxide, which is on the inside. Heat would probably be the best bet

Re: [Elecraft] OT aluminum oxide

2010-10-19 Thread Lew Phelps K6LMP
One possible solution would be to soak the "stuck" joints a solution of sodium hydroxide (lye, as in drain cleaner). There's a web site that discusses the chemical reaction and the ability of lye to dissolve existing layers of aluminum oxide. See: http://www2.uni-siegen.de/~pci/versuche/english

Re: [Elecraft] OT aluminum oxide

2010-10-19 Thread WILLIS COOKE
.@charter.net> To: elecraft@mailman.qth.net Sent: Tue, October 19, 2010 11:38:28 AM Subject: [Elecraft] OT aluminum oxide Does anyone have experience freeing antenna parts that have seized with aluminum oxide?  I'm trying to free up the sections of a 32' boom for transport.  The

[Elecraft] OT aluminum oxide

2010-10-19 Thread 2Cents
Does anyone have experience freeing antenna parts that have seized with aluminum oxide? I'm trying to free up the sections of a 32' boom for transport. The sections are swaged 6" and penetrating oil doesn't seem to be cutting it. Please reply direct so as not to clutter up the reflector with a no