Re: fused ribbed mirrors
- --- In email@example.com, "Thomas Janstrom" <t_janstrom@...> wrote:
>has anyone in this group considered or knows of a low carbon steel
> Steer clear of gypsum if you're going to go up to fusing temps as it
> will out-gas sulphur dioxide, which is murder on the kiln elements.
> For slumping it might be ok, but it does shrink and is prone to
> cracking. You can get around that a little by adding either silica (300
> or so mesh) or alumina (about the same mesh) 1:1 (plaster to silica or
> alumina) and @5% of grog (crushed insulating fire brick is ok for this)
> or alumino-silicate bulk fibre or better yet pure alumina bulk fibre to
> the total mix. Mix everything dry, then in a bucket add your estimated
> amount of water, then add the dry mix to the water, well if you've made
> a plaster tool you know the rest.
> Anything based on calcium carbonate is only good to about 800'C (about
> 1450'F) where it will turn into CaO and promptly start to dissolve into
> your glass, not what you want to happen.
> Cheers, Thomas.
plate with walls at 45 degrees welded on as a form to build flat
blanks or stainless steel instead of low carbon steel?
any views or opinions are appreciated.
- In a message dated 7/6/2006 2:37:20 P.M. Eastern Daylight Time, richas@... writes:
>but at least she does not have horns, pitchfork, tatoo, nose ring or tongue piercing.lol my wife dose tho so have a care ;) (not the horns tho but sometimes i wonder)>(Those religious Jews do not use birth control; the girl is of one of eleven children in her family. Is it fair to kids to pack them four or five to a room?)eek wow we stopped at 3