On Sat, Nov 21, 2009 at 05:00:13AM -0700, Jeshua Lacock wrote: > One of the beauties of casting with aluminothermic reactions is there > is no crucible used (or furnace)!
Would another beauty be that TiO2 is cheap enough to put in paint and plastic, but Ti metal costs a mozza? I can't quite get over that you're casually extracting the metal from a most recalcitrant oxide, while current industrial processes to do the same are horribly expensive. > You plug the sprue (entry) going to the mold cavity with a thin sheet > of metal (that is melted once the molten metal reaches it), and put > the chemical on top. The slag melts to the top and the metal drains > out into the mold.... Does it remain molten long enough to flow into a mould, if the reaction takes 20 minutes? Or was that just because you were melting a barrel of the stuff? Even so, that wouldn't give a sound casting, just a pig for remelting? Erik ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
