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Re: Lead Patenting/Oil-tempered vs. Induction Heating


I have seen several manufacturers use induction heating processes -- what's 
nice about them is that depending on the type of stock, they can be built 
on line right into the process.  It's great for wire cold forging and for 
stress relieving some metals like silicon bronze before doing further 
maching  or punching operations.

I would think you could get a few vendors to develop estimates and then you 
could augment the estimates if they omit the (hidden) environmental costs 
associated with the processes they are currently using.


At 03:09 PM 5/23/02 -0500, you wrote:
>No, David, I don't, but here's something else your client might be
>interested in. I have a client that uses cryogenics (liquid nitrogen) to
>impart exceptional properties to various materials, including various metal
>alloys. If there is any interest in applying this technology-which is
>entirely environmentally friendly and more energy efficient than any
>heating technology-I would be happy to make the connection between the two
> >Our office is has been working with a local wire manufacturing company.
> >The wire is manufactured from coiled steel.  80% of their heat treatment
> >process is done with lead patenting and oil quenching on 9 lines.  They do
> >use one Induction Heating line, but do not realize the long term
> >cost/environmental benefits of using this technology, or if they do, are
> >more concerned with the capital investment (they probably spent @ $2-$3
> >million for their only line).  We want to show them induction heating is a
> >feasible option.
> >
> >Does anybody have case studies and actual cost justifications comparing
> >these two methods of heat treating?
> >
> >Thanks in advance.
> >
> >David A. Foulkes, Environmental Specialist
> >State of Ohio EPA
> >Office of Pollution Prevention
> >P.O. Box 1049
> >Columbus, OH  43216-1049
> >(614) 644-3118
> >email:  dave.foulkes@epa.state.oh.us
> >World Wide Web:  http://www.epa.state.oh.us/opp
> >
> >Attachment converted: Power HD:TEXT.htm (TEXT/MSIE) (0002EF17)