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| My new foundry |
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| NormanV:
The lid is complete, there is a good seal around the edges. I know that it won't affect the performance of the furnace but it will prevent surprises when I am standing next to it. I obtained 60kg of scrap aluminium castings today, the crucibles are being welded today also. I will be doing my first melt this weekend. I will be using charcoal as a fuel as I have spent enough already over the last few weeks and a gas cylinder will have to wait. I'll just be making ingots at first as I still have to get the sand and also make some flasks. |
| vtsteam:
Norman I know you've cast already so pretty sure you already know this, but if not, take a thin sliver off of those wheels and other castings and try to light those individually with a torch to see if they burn white -- a check for magnesium. Apologies for the presumption if you already have done this, or know about it. |
| NormanV:
I will check them but I am pretty sure that they are not magnesium. I've only ever used wheels in the past and never had a problem but there is always a first time. thanks, Norman |
| NormanV:
My next task is to obtain some sand for making my moulds. The two suppliers that I have located charge £15 for 25kg. That is not much sand for the money! Can anyone suggest a supplier in UK that are cheaper and won't charge an arm and a leg for delivery? I am not even sure how much I will need, my biggest moulding box will be 30" x 12" x 8", what weight of sand will I need to fill that? As I understand it I need sharp sand, the grains of sand from the beach will be too rounded, is that correct? When I was casting before I used sand from the local sand dunes and bentonite cat litter, it worked fine. Norman |
| awemawson:
Conventionally Mansfield sand is used in the UK being a self bonding sand with good porosity and refractory properties. Have you tried John Winter in Halifax? |
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