| The Shop > Metal Stuff |
| Oil fired crucible furnace |
| << < (20/46) > >> |
| 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: |
| Navigation |
| Message Index |
| Next page |
| Previous page |