Thanks Rob, the plating company does work for Rolls-Royce so I will pass on
your sugestions, I am sure they will be able to comply, ( might even make me
look more knowlegable).
Alan Twigg
----- Original Message -----
From: "Rob Housman" <RobH@hyperion-ef.com>
Subject: RE: Europa-List: Tailwheel
>
> 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
> To: europa-list@matronics.com
> 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>
> To: "Europa-List Digest Server" <europa-list-digest@matronics.com>
> Subject: Europa-List: Tailwheel
>
>
<alan.twigg@ntlworld.com>
> >
> > 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
> >
> >
>
>
|