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Chemistry Forums for Students => High School Chemistry Forum => Topic started by: Rebus Knebus on March 14, 2005, 03:44:43 PM

Title: Reversing reacyion between Aluminum and chrome plated steel
Post by: Rebus Knebus on March 14, 2005, 03:44:43 PM

I need some help to outsmart my dad.  We have a piece of equipment which the base metal is aluminum and a chromed metal rod is rusted in a hole.  How can I reverse this.  I have tried using brute force to no avail with  pipe wrench, a hammer and commercially available rust penetrants.  Is there a chemical I could use or even electricity to loosen this metal rod?  I have also thought about heat but afraid to crack the aluminum case which is about 1/2" thick.

Thanks

Rebus

Title: Re:Reversing reacyion between Aluminum and chrome plated steel
Post by: Borek on March 14, 2005, 06:28:43 PM

Quote from: Rebus Knebus on March 14, 2005, 03:44:43 PM

We have a piece of equipment which the base metal is aluminum and a chromed metal rod is rusted in a hole.  How can I reverse this.  I have tried using brute force to no avail with  pipe wrench, a hammer and commercially available rust penetrants.

Any rust eater will consume aluminium as well (if not easier then rust).

I will start with some naphta to loosen everything (or something similar - WD40 is sold here, no idea how such a liquid or spray will be called in US).

Title: Re:Reversing reacyion between Aluminum and chrome plated steel
Post by: dexangeles on March 14, 2005, 07:43:09 PM

Quote from: Borek on March 14, 2005, 06:28:43 PM

WD40 is sold here, no idea how such a liquid or spray will be called in US).

same thing WD40
where from Borek?