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Ferrite Toroid Core: Magnesium-Zinc Ferrite (28 : 18 : 54) Fired at 1400 °C (Snoek)
Charlie

Imeundwa na

Charlie

21. Oktoba 2026DE
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Ferrite Toroid Core: Magnesium-Zinc Ferrite (28 : 18 : 54) Fired at 1400 °C (Snoek)

Ferrite is a ceramic magnet: iron oxide combined with other metal oxides, carrying magnetic flux while hardly conducting electricity. In his first ferrite patent (US 2,452,529, 1948) Snoek at Philips ground the oxides very fine and fired rings in oxygen. This magnesium-zinc ferrite (28 : 18 : 54 mol %) is milled 30 hours and fired 2 hours at 1400 °C; his core had an initial permeability of 150. The picture: our diagram.
Juu
3 days

Maagizo

1

Mix 28 : 18 : 54 mol

Mix pure magnesium oxide, zinc oxide and ferric oxide, 28 : 18 : 54 mol %. Ours, by weight: 10.06 g magnesium oxide, 13.06 g zinc oxide and 76.88 g ferric oxide per 100 g.

Vifaa kwa hatua hii:

Oksidi ya magnesiamuOksidi ya magnesiamu10.06 g
Poda ya oksidi ya zinkiPoda ya oksidi ya zinki13.06 g
Oksidi ya feriOksidi ya feri76.88 g

Zana zinazohitajika:

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

Grind 30 hours in an iron ball mill

Grind the mixture for 30 hours in an iron ball mill.

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

Press the powder at 4 tons per square centimetre into a ring 3 cm across with a 4 × 4 mm section.

Zana zinazohitajika:

Mashine ya kubana ya haidrolikiMashine ya kubana ya haidroliki
Kalibu ya kubonyeza peteKalibu ya kubonyeza pete
4

Fire 2 hours at 1400 °C, cool slowly

Heat the ring in oxygen for 2 hours at 1400 °C, then cool it slowly in oxygen at 5–10 °C a minute. Snoek's core: initial permeability 150.

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

11

Mchoro huu unatengeneza

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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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