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Aluminium Powder: Molten Aluminium Shot into Water, then Stamped
siporex (Wikimedia Commons) · CC BY-SA 4.0
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18. Oktoba 2026NO
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Aluminium Powder: Molten Aluminium Shot into Water, then Stamped

Aluminium powder is the fuel of the thermit reaction that turns metal oxides into metal. Thorpe (1912) gives how it was made: molten aluminium poured into water, and the small irregular fragments, once dry, pounded under stamp-mills until fine enough. Molten metal and water: face shield, gloves, and pour slowly. Keep the powder away from flame. The picture: aluminium powder (Wikimedia Commons).
Kati
1 day

Maagizo

1

Melt the aluminium

Melt 200 g of aluminium in a crucible in the furnace.

Vifaa kwa hatua hii:

Kitalu cha aluminiKitalu cha alumini200 g

Zana zinazohitajika:

Mizani ya mizani-mbiliMizani ya mizani-mbili
Chombo cha KuyeyushiaChombo cha Kuyeyushia
Tanuru la mkaaTanuru la mkaa
Koleo la kaure ya kuyeyushiaKoleo la kaure ya kuyeyushia
Ngao ya UsoNgao ya Uso
Glavu za NgoziGlavu za Ngozi
2

Pour it into water

Stand back behind the face shield and pour the metal slowly, in a thin stream, into a bucket of cold water. It sets as small irregular fragments.

Zana zinazohitajika:

MajiMaji
Ndoo ya chuma yenye mfunikoNdoo ya chuma yenye mfuniko
Koleo la kaure ya kuyeyushiaKoleo la kaure ya kuyeyushia
Ngao ya UsoNgao ya Uso
Glavu za NgoziGlavu za Ngozi
3

Dry the fragments

Lift the fragments out with a skimmer and dry them completely.

Zana zinazohitajika:

Kichota chenye matunduKichota chenye matundu
4

Stamp to powder

Pound the dry fragments under the stamp mill until the powder is fine. Sieve, return the coarse part to the stamps, and keep the powder in a closed jar.

Zana zinazohitajika:

Kinu cha MtwangoKinu cha Mtwango
Ungo MwembambaUngo Mwembamba
Mitungi ya kioo yenye vifunikoMitungi ya kioo yenye vifuniko

Vifaa

1

Zana Zinazohitajika

12

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