Ukusebenzisana
UBUCIKO
UBUHLE NEMPILO
UBUCIKO BEZANDLA
AMASIKO NOMLANDO
EZOKUZIJABULISA
IMVELO
UKUDLA NEZIPHUZO
REVERSE ENGINEERING
IZAYENSI
EZEMIDLALO
UBUCHWEPHESHE
IZINTO EZIGQOKWAYO
Ferrite Toroid Core: Copper-Zinc Ferrite Sintered at 1200 °C (Snoek 1948, Ex. I)
A soft ferrite ring core for coils and transformers: copper, zinc and iron oxides with a little brownstone, pressed into a ring and sintered at 1200 °C in oxygen. Snoek's ring had an initial permeability of 285.
Source: J. L. Snoek, US 2,452,530 (Philips, 1948), Example I and its table. The violet iron oxide has its own blueprint (precipitated hematite calcined at 1000-1100 °C, after Nurdini et al. 2022); Snoek does not say how his was made. Picture: the patent's Fig. 4, the ring core.
Osezingeni eliphezulu
2 days
Imiyalelo
1
1
Weigh 20 : 30 : 50 mol % and 1 % brownstone
Weigh 20 : 30 : 50 mol % and 1 % brownstone
Mix 20 mol % pure copper oxide, 30 mol % pure zinc oxide and 50 mol % pure violet iron oxide, and add 1 % by weight of brownstone (manganese dioxide). Ours, by weight: 13.24 g copper oxide, 20.32 g zinc oxide and 66.44 g iron oxide per 100 g, plus 1 g brownstone. Snoek does not say what makes it 'violet'; violet iron oxide has its own blueprint.
Izinto zokwakha zalesi sinyathelo:
I-Copper Oxide13.24 g
Impuphu Ye-Zinc Oxide20.32 g
I-iron oxide ensomi66.44 g
I-manganese dioxide (i-pyrolusite)1 gAmathuluzi adingekayo:
Isikali sesilinganiso
Imaski Yothuli2
2
Grind half an hour in an iron ball mill
Grind half an hour in an iron ball mill
Grind the mixture for half an hour in a mill with iron balls.
Amathuluzi adingekayo:
Umshini Wokugaya Ngamabhola EnsimbiImaski Yothuli3
3
Press a ring at 4 tons per cm²
Press 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 cross-section.
Amathuluzi adingekayo:
Umshini wokucindezela we-hydraulic
Isikhunta Sokucindezela IzindandathoImaski Yothuli4
4
Sinter at 1200 °C in oxygen, cool 5–10 °C a minute
Sinter at 1200 °C in oxygen, cool 5–10 °C a minute
Sinter the ring at 1200 °C in a current of oxygen. Example I heats for 1 hour and cools in the oxygen at 5 to 10 °C per minute. Snoek's ring had an initial permeability of 285, measured at room temperature at 2 kHz.
Amathuluzi adingekayo:
Isithando Sepayipi
I-oxygen
Isilinda segesi ecindezelwe
I-pyrometer
Udlawu Lwesitsha Sokuncibilikisa
Amagilavu Amelana NokushisaIzinto
4- 13.24 gIsibambeli
- 20.32 gIsibambeli
- 66.44 gIsibambeli
- Isibambeli
Amathuluzi Adingekayo
11- Isibambeli
- Isibambeli
- Isibambeli
- Isibambeli
- Isibambeli
- Isibambeli
- Isibambeli
- Isibambeli
- Isibambeli
- Isibambeli
- Isibambeli
Le blueprint yenza
Ama-blueprint ahlobene
Lama-blueprint abelana ngolwazi — amasu, izinto noma izimiso
CC0 Isizinda Somphakathi
Le blueprint ikhishwe ngaphansi kwe-CC0. Ukhululekile ukukopisha, ukuguqula, ukusabalalisa, nokusebenzisa ngaphandle kwemvume.
Sekela uMenzi ngokuthenga imikhiqizo nge-Blueprint yabo IKhomishane Yomenzi kumiswe ngabathengisi, noma dala inguqulo entsha yale Blueprint bese uyifaka njengoxhumaniso ku-Blueprint yakho ukuze wabelane ngemali engenayo.