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Ferrite Toroid Core: Magnesium-Zinc Ferrite Fired at 1300 °C in Oxygen (Snoek)
Charlie

Imeundwa na

Charlie

21. Oktoba 2026DE
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Ferrite Toroid Core: Magnesium-Zinc Ferrite Fired at 1300 °C in Oxygen (Snoek)

Ferrite is a ceramic magnet: iron oxide combined with other metal oxides, carrying magnetic flux while hardly conducting electricity. Snoek at Philips (US 2,452,531, 1948) made this magnesium-zinc ferrite ring: magnesia, zinc oxide and iron oxide ground together, moulded with water into a ring and fired in oxygen at 1300 °C for 1 hour, then cooled slowly. His ring had an initial permeability of 350. The picture: our diagram.
Juu
1 day

Maagizo

1

Mix 26.5 : 26.5 : 47 mol

Mix pure magnesium oxide, zinc oxide and iron oxide in the molecular ratio 26.5 : 26.5 : 47. Ours, by weight: 9.95 g magnesium oxide, 20.10 g zinc oxide and 69.95 g ferric oxide per 100 g.

Vifaa kwa hatua hii:

Oksidi ya magnesiamuOksidi ya magnesiamu9.95 g
Poda ya oksidi ya zinkiPoda ya oksidi ya zinki20.1 g
Oksidi ya feriOksidi ya feri69.95 g

Zana zinazohitajika:

Mizani ya mizani-mbiliMizani ya mizani-mbili
Barakoa ya vumbiBarakoa ya vumbi
2

Grind for 3 hours in an iron ball mill

Grind the mixture for 3 hours in a mill with iron balls.

Zana zinazohitajika:

Kinu cha mipira ya chumaKinu cha mipira ya chuma
Barakoa ya vumbiBarakoa ya vumbi
3

Mould a ring at 4 tons per cm²

Mould a ring 3 cm across and 4 × 4 mm in section at 4 tons per square centimetre, with water as the plastifying and binding agent.

Zana zinazohitajika:

Mashine ya kubana ya haidrolikiMashine ya kubana ya haidroliki
Kalibu ya kubonyeza peteKalibu ya kubonyeza pete
Maji yaliyosafishwa kwa mvukeMaji yaliyosafishwa kwa mvuke
4

Fire 1 hour at 1300 °C, cool at 3 °C a minute

Heat the ring in oxygen to 1300 °C for 1 hour, then cool it in oxygen at about 3 °C per minute. Snoek's ring had an initial permeability of 350.

Zana zinazohitajika:

Tanuru ya MrijaTanuru ya Mrija
OksijeniOksijeni
Mtungi wa gesi yenye shinikizoMtungi wa gesi yenye shinikizo
Kipima joto kaliKipima joto kali
Koleo la kaure ya kuyeyushiaKoleo la kaure ya kuyeyushia
Glavu Zinazostahimili JotoGlavu Zinazostahimili Joto

Vifaa

3

Zana Zinazohitajika

12

Mchoro huu unatengeneza

Thumbnail
Kishikilia nafasi

Kiini cha toroidi cha feraiti

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Blueprint zinazohusiana

Blueprint hizi zinashiriki maarifa — mbinu, vifaa au kanuni

Ferrite Toroid Core: Nickel-Zinc Ferrite Sintered at 1300 °C in Oxygen (Snoek)
Hatari

Ferrite Toroid Core: Nickel-Zinc Ferrite Sintered at 1300 °C in Oxygen (Snoek)

na CharlieDE

Viwandani

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Ferric Oxide: Hydroxide Precipitated from Ferric Chloride with Ammonia, Then Heated

Ferric Oxide: Hydroxide Precipitated from Ferric Chloride with Ammonia, Then Heated

na CharlieDE

Isiyo hai

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