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UBUHLE NEMPILO
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AMASIKO NOMLANDO
EZOKUZIJABULISA
IMVELO
UKUDLA NEZIPHUZO
REVERSE ENGINEERING
IZAYENSI
EZEMIDLALO
UBUCHWEPHESHE
IZINTO EZIGQOKWAYO
Ferrite Toroid Core: Copper-Zinc Ferrite Milled 200 Hours, Fired at 1050 °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 copper-zinc ferrite is milled about 200 hours, fired 2 hours at 1050 °C and held 12 hours at 600 °C; his core had an initial permeability of 200.
The picture: our diagram.
Osezingeni eliphezulu
2 weeks
Imiyalelo
1
1
Mix 20 : 30 : 50 mol
Mix 20 : 30 : 50 mol
Mix pure copper oxide, zinc oxide and ferric oxide, 20 : 30 : 50 mol %. Ours, by weight: 13.24 g copper oxide, 20.32 g zinc oxide and 66.44 g ferric oxide per 100 g.
Izinto zokwakha zalesi sinyathelo:
I-Copper Oxide13.24 g
Impuphu Ye-Zinc Oxide20.32 g
I-ferric oxide66.44 gAmathuluzi adingekayo:
Isikali sesilinganiso
Imaski Yothuli2
2
Grind about 200 hours in an iron ball mill
Grind about 200 hours in an iron ball mill
Grind the mixture for about 200 hours in an iron ball mill.
Amathuluzi adingekayo:
Umshini Wokugaya Ngamabhola EnsimbiImaski Yothuli3
3
Mould a ring at 4 tons per cm²
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.
Amathuluzi adingekayo:
Umshini wokucindezela we-hydraulic
Isikhunta Sokucindezela Izindandatho4
4
Fire 2 hours at 1050 °C, hold 12 hours at 600 °C
Fire 2 hours at 1050 °C, hold 12 hours at 600 °C
Heat the ring for two hours at 1050 °C in a current of oxygen, cool at 5 °C a minute to 600 °C, hold it there 12 hours, then cool to room temperature, all in oxygen. Snoek's core: initial permeability 200.
Amathuluzi adingekayo:
Isithando Sepayipi
I-oxygen
Isilinda segesi ecindezelwe
I-pyrometer
Udlawu Lwesitsha Sokuncibilikisa
Amagilavu Amelana NokushisaIzinto
3- 13.24 gIsibambeli
- 20.32 gIsibambeli
- 66.44 gIsibambeli
Amathuluzi Adingekayo
11- Isibambeli
- Isibambeli
- Isibambeli
- Isibambeli
- Isibambeli
- Isibambeli
- Isibambeli
- Isibambeli
- Isibambeli
- Isibambeli
- Isibambeli
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