WHOA! Sorry folks - I was using the old 'Alt-248' key sequence to try to
get the degree sign - guess that trick does not work in this email
format!!.
I certainly did not mean 4500 degrees Celsius!
OK, just to clarify, and reiterate my point:
450 degrees Celsius equals 842 degrees Fahrenheit, which is approaching
the annealing temperature of some alloys, and so get the guidance of a
metallurgist before doing the galvanizing.
Pete Long
> -----Original Message-----
> From: Patrick J. Horne [mailto:horne@cs.utexas.edu]
> Sent: Thursday, May 16, 2002 9:54 AM
> To: Peter Long
> Cc: Sel_Aganovic@hettich.com.au; roadster list
> Subject: Re: was: Chassis rustproofing/frame weight
>
>
> Pete,
>
> Take another look at the original post, it indicated 450 C,not 4500 C!
> A bit of a difference.
>
> Peace,
> Pat
>
>
>
> - Support Habitat for Humanity, A "hand up", not a "hand out" -
>
> Pat Horne, Network Manager, Shop Supervisor, Future planner
> CS Dept, University of Texas, Austin, Tx. 78712 USA
> voice (512)471-9730, fax (512)471-8885, horne@cs.utexas.edu
>
> On Thu, 16 May 2002, Peter Long wrote:
>
> > Sel,
> >
> > I would get the opinion of a metallurgist regarding the
> 4500 C heating
> > of the frame required to do the galvanizing - 4500 C
> equates to 8420 F,
> > which is approaching the annealing temperature of some
> alloys. Simply
> > put, that temperature might be enough to alter the temper
> of the steel
> > used in the frame, either making it stiffer and more
> brittle - and more
> > prone to cracking - or softer and more flexible - making the chassis
> > less resistant of the torsional forces imposed by the suspension.
> > Either way is undesirable, depending on extent.
> >
> > There may not be a problem with that temperature, but you definitely
> > want to be sure!
> >
> > Pete Long
> >
> > > -----Original Message-----
> > > From: Sel_Aganovic@hettich.com.au
[mailto:Sel_Aganovic@hettich.com.au]
> > Sent: Wednesday, May 15, 2002 9:36 PM
> > To: datsun-roadsters@autox.team.net
> > Subject: RE: Chassis rustproofing/frame weight
> >
> >
> > Hi Listers,
> >
> > I decided to hot dip galvanise my chassis. I found a company
> > near by that
> > can accommodate the chassis in one go, and they charge $2.50 per
kg..
> >
> > The questions I have, is how much does the "bare" chassis
> > weigh ? My guess
> > is about 150 kg ?!
> >
> > Has anyone galvanised their chassis before ?
> >
> > Would there be any problems with heat affecting the
> > frame/welds, since they
> > use about 450 degrees Centigrade in their baths ?
> >
> > Thanks in advance....
> >
> > Sel
> >
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