You are correct in re: hydrogen embrittlement, but if the plater does the
job correctly, i. e., uses a so-called "pickle aid" in the hydrochloric acid
dip prior to plating and follows that with a bake at 175 to 200 C for up to
3 hours the stress due to hydrogen embrittlement can be relieved.
Unless the corrosion is severe this pre-plating treatment, which is required
for plating, will also remove the corrosion.
Just a suggestion for purely cosmetic reasons, but nickel plating will
provide corrosion resistance and look better than cadmium.
Best regards,
Rob Housman
Europa XS Tri-Gear A070
Airfarame complete
Irvine, CA
-----Original Message-----
From: owner-europa-list-server@matronics.com
[mailto:owner-europa-list-server@matronics.com]On Behalf Of Cy Galley
Subject: Re: Europa-List: Tailwheel
ALL acid based plating incurs Hydrogen embrittlement and needs to be baked,
I've been told.
Cy Galley - Bellanca Champion Club
Newsletter Editor & EAA TC
www.bellanca-championclub.com
Actively supporting Aeroncas every day
Quarterly newsletters on time
Reasonable document reprints
1-518-731-6800
----- Original Message -----
From: "Alan Twigg" <alan.twigg@ntlworld.com>
Subject: Europa-List: Tailwheel
>
> My first entry so be gentle with me,
>
> I am about to get some soft CAD plating done on some steel parts. I
notice the tailwheel leg/spring has some light corrosion on it and it has
never left the workshop.
> My dilemma is do I plate it or not, will plating embrittle and affect
spring qualities, if indeed it is a spring?
>
> I also just got the main ( Mono) leg painted in a chip resistant white, it
made the engine/ gear mount and Rudder pedal paintwork look amateur,( the
rudder pedal paint came off with the masking tape factory wrapped around
it), so I decided to repaint. Cleaning it off with Nitromors it just ran
off, with residual wiped off with a cloth, no sign of surface prep or
priming.
> Anyone else repainted these items?
>
> Regards Alan Twigg
> Mono Motorglider G-GIWT
>
>
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