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Magnesium Ribbon: Rolled Hot at 450 °C and Slit
Capt. John Yossarian (Wikimedia Commons) · CC BY-SA 3.0
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18. Ukwakira 2026NO
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Magnesium Ribbon: Rolled Hot at 450 °C and Slit

Magnesium ribbon catches in a flame and burns with an intense white light, which makes it the lighter for a thermit charge. Thorpe (1912): magnesium is malleable but ductile only when hot, it can be rolled at 450 °C, and it is most used flattened into ribbon. It tarnishes in moist air, so store it dry. Keep flame away from the finished ribbon. The picture: magnesium ribbon burning (Wikimedia Commons).
Hagati
Half a day

Amabwiriza

1

Cut a piece

Saw a 20 g piece off the magnesium ingot.

Ibikoresho by'iyi ntambwe:

Ikibumbe cya MagineziyumuIkibumbe cya Magineziyumu20 g

Ibikoresho bikenewe:

Umucumita w'IbyumaUmucumita w'Ibyuma
Umunzani w'ibiroUmunzani w'ibiro
2

Heat to 450 °C

Heat the piece to 450 °C in the furnace and check it with the pyrometer. Cold, magnesium is not ductile.

Ibikoresho bikenewe:

Itanura ry'amakaraItanura ry'amakara
PirometeroPirometero
Igikoresho cyo GufataIgikoresho cyo Gufata
Uturindantoki tw'UruhuUturindantoki tw'Uruhu
3

Roll it thin

Pass it through the rolling mill, close the rolls a little each time, and reheat to 450 °C between passes. Stop at about 0.2 mm thick.

Ibikoresho bikenewe:

Imashini isingiya icyumaImashini isingiya icyuma
Itanura ry'amakaraItanura ry'amakara
Igikoresho cyo GufataIgikoresho cyo Gufata
MikorometeroMikorometero
Uturindantoki tw'UruhuUturindantoki tw'Uruhu
4

Slit and store

Cut the cold strip into ribbon about 3 mm wide, coil it, and keep it in a dry, closed jar.

Ibikoresho bikenewe:

Imikasi y'icyumaImikasi y'icyuma
Icupa ry'Ikirahure Rifite UmufunikoIcupa ry'Ikirahure Rifite Umufuniko

Ibikoresho

1

Ibikoresho bikenewe

10

Iki gishushanyo gikora

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Agatambaro ka Magineziyumu

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