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VAZI
Sand Bath in a Sunk Iron Pan
A sand bath is a pan of sand set over the heat. A flask or dish bedded in the sand is warmed on all sides, not just on the bottom. Alchemists already used it. Here a shallow pan is hammered from iron sheet into a hollow and then filled with sieved sand.
The picture: our diagram of a flask bedded in sand in an iron pan over a fire.
Mwanzo
A day
Maagizo
1
1
Cut the disc
Cut the disc
Scribe a circle on the iron sheet with the dividers and cut it out with the snips. File the edge smooth.
Vifaa kwa hatua hii:
Bamba la chuma (lililofuliwa)1 kipandeZana zinazohitajika:
Bikari ya ncha mbili
Mkasi wa bati
Tupa ya chuma
Glavu za kulehemu2
2
Carve a hollow
Carve a hollow
Gouge a shallow round hollow into the end grain of a hardwood block, about as deep as the pan will be.
Zana zinazohitajika:
Kipande cha mbao ngumu
Patasi ya mviringo ya mbao
Nyundo ya mbao3
3
Sink the pan
Sink the pan
Hold the disc over the hollow and hammer it down in rings from the rim toward the centre, turning it as you go. Sinking stretches and thins the sheet, so go evenly. If the iron stiffens, heat it red in the forge and let it cool before going on.
Zana zinazohitajika:
Kipande cha mbao ngumu
Nyundo yenye kichwa cha duara
Fua ya mhunzi
Koleo za mhunziGlavu za kulehemu4
4
Flatten the bottom
Flatten the bottom
Planish the bottom flat on the anvil so the pan sits steady over the fire, and file the rim level.
Zana zinazohitajika:
FuaweNyundo yenye kichwa cha duaraTupa ya chuma5
5
Fill with sand
Fill with sand
Sieve the sand, dry it by heating it in the pan, and leave a layer about 3 cm deep.
Vifaa kwa hatua hii:
Mchanga2 kgZana zinazohitajika:
UngoFua ya mhunzi6
6
Use it
Use it
Set the pan over the heat and bed the flask or dish partly in the sand. The sand carries the heat to all sides of the vessel.
Zana zinazohitajika:
Glavu za kulehemu7
7
How big a disc
How big a disc
Inapakia daftari la Jupyter…
Zana Zinazohitajika
12- Kishikilia Nafasi
- Kishikilia Nafasi
- Kishikilia Nafasi
- Kishikilia Nafasi
- Kishikilia Nafasi
- Kishikilia Nafasi
- Kishikilia Nafasi
- Kishikilia Nafasi
- Kishikilia Nafasi
- Kishikilia Nafasi
- Kishikilia Nafasi
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Mchoro huu unatengeneza
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CC0 Umma Wote
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