[TheForge] YAK Solid Platinum Anvil and Dan Brown

[James Binnion]

On Oct 21, 2005, at 10:00 PM, Hochewa at aol.com wrote:

>
> To All,
> Sort of like Goldfinger and his solid gold Rolls.
> Anyway, trying to harden the anvil would have had little effect on  
> it  except
> for burning off the paint.  Also something would have set the  
> anvil  apart
> other than its lack of ring; Platinum has a density of .79 #'s /   
> in^3.  Iron is
> only about .28.  The anvil would have been about three  times as  
> heavy for
> its size.  Platinum melts about 3100*F and it does not  oxidize  
> appreciably at
> that temperature.  I know of a refiner that could  turn it back into a
> marketable form.
>
> Bill Hochella
> Sr. Development Engineer
> Noble Metals
> Johnson Matthey, Inc.

Hi Bill,

Do you know Edwin Crombie and Dave Arey? I had the pleasure of  
presenting a paper at a Platinum Guild event a few years ago and they  
presented their paper "Hot Extrusion of Heavy Wall Seamless Tube for  
Platinum Jewelry Applications" at the same event. In their  
presentation they had a video of the process. I loved the part where  
they showed using a self contained air hammer to forge the pouring  
cup of a red hot platinum ingot. That and the actual extrusion video  
were great to watch. Do you work with that group?

Jim

James Binnion
jbin at well.com