The Shop > Metal Stuff
Oil fired crucible furnace
vtsteam:
That sand would I believe be called sub-angular in grain shape. I've made up some new greensand today with 4% bentonite, and 4% water. The idea being to try it, and possibly gradually increase the bentonite content by 1 % steps over a few castings.
I won't be able to try that until tomorrow in order to let it rest. But I will cast today using my other sand at 2.5 % moisture content, as measured today, and with the new thicker iron I used last pour. the crucible will be one of the poor ones, but it has only one pour under its belt, and is clean inside. I should get another 3 melts out of it before switching to the new Salamander Super A-6, which needs a pouring shank and tongs made to fit.
I will not use flux today.
tekfab:
The picture is not crystal clear but to me it looks like you have a sub-angular/sub-rounded mix but as i said i'm only going by what i can see in the pcture.
vtsteam:
Sounds good to me.
Rob.Wilson:
Looks like silica gel to me Steve :palm:
Rob
vtsteam:
So thats it!!!!
Rob, you've solved it. :lol: :lol: :lol: :lol: :lol: :lol: :lol:
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