Grib, How does it work with Inconell, any ideas? wmts
Quoting rgribble <rgribble@carolina.rr.com>:
> Hi Bill,
> What I know comes from NASCAR Engine Builders, others
may have other
> experiences and opinions. These seats are very
expensive but very valuable.
> Beryllium is commonly used on engine heads with
titanium valves, mostly on
> exhaust valve seats and sometimes on intakes if
budgets allow. First off,
> this metal does an excellent job of transferring heat
away from the valve
> and second it has an excellent hardness to match up
against the titanium
> valves used today. Because of the hardness of the
titanium valves, high
> spring pressures and high heat, you want a tough seat
material to prevent
> distortion of the lesser (malleable) material, but
not one that will permit
> galling.
> Why not use titanium seats? Galling usually occurs
when identical metals
> experience the above mentioned stress and seem to
loose each's identity.
> That's why we use anti-seize which usually has either
lead or copper metal
> in it to prevent the galling.
> If you'd like to see one, I can send it to you (on
loan).
> Grib
>
>
> ----- Original Message -----
> From: "Bill & Dee Bennett" <benettw@earthlink.net>
> To: "Land Speed List" <land-speed@autox.team.net>
> Sent: Wednesday, June 27, 2001 8:53 PM
> Subject: Valve Seats?
>
>
> > Anyone care to explain to me when you would want to
use Copper Beryllium
> > valve seats instead of ductile iron.
> >
> > Bill
>
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