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TEKNOLOJIA
VAZI
Aluminium Electrolytic Capacitors: Wound, Soaked and Sealed
An aluminium electrolytic capacitor is two aluminium foils wound up with a paper spacer between them. The anode foil is etched rough to multiply its surface and then "formed": a voltage in an electrolytic bath grows an insulating oxide layer whose thickness follows the forming voltage, and that oxide is the dielectric. The liquid electrolyte soaked into the paper, commonly ethylene glycol with boric acid, is the real cathode; the second foil only connects to it. The foils and paper are cut to width, wound with their terminals welded on, soaked with electrolyte under vacuum, put in an aluminium can, sealed with a rubber disc by curling the can's edge, sleeved, and finally run at rated voltage in heat to heal any oxide damaged by cutting and winding.
Juu
Factory process
Maagizo
1
1
Cut the foils and paper
Cut the foils and paper
Cut the etched and formed anode foil, the spacer paper and the cathode foil from their mother rolls to width.
Vifaa kwa hatua hii:
Karatasi ya anodi iliyochongwa na kuundwa1 as required
Karatasi ya Alumini1 as required
Karatasi ya kutenganisha ya kapasita1 as required2
2
Wind
Wind
Weld on the terminals, wind the foils with the paper between them, and cut the winding to length.
Zana zinazohitajika:
Mashine ya kuzungusha kapasita3
3
Impregnate
Impregnate
Soak the winding with electrolyte under vacuum.
Vifaa kwa hatua hii:
Ethilini glikoli1 as required
Asidi ya boroni1 as requiredZana zinazohitajika:
Chemba ya kulowesha kwa ombwe4
4
Case and seal
Case and seal
Put the winding in the aluminium can, fit the rubber sealing disc and curl the can's edge to seal it; add the insulating sleeve.
Vifaa kwa hatua hii:
Kopo la alumini la kapasita1 kipande
Diski ya mpira ya kuziba1 kipande
Mrija unaosinyaa kwa joto1 kipande5
5
Post-form and test
Post-form and test
Apply rated voltage at high temperature to heal the oxide, then measure capacitance, leakage current and impedance.
Zana zinazohitajika:
Kichanja cha kuunda upya kwa joto la juuVifaa
8- 1 as requiredKishikilia Nafasi
- 1 as requiredKishikilia Nafasi
- 1 as requiredKishikilia Nafasi
- 1 as requiredKishikilia Nafasi
- 1 as requiredKishikilia Nafasi
- 1 kipandeKishikilia Nafasi
- 1 kipandeKishikilia Nafasi
- 1 kipandeKishikilia Nafasi
Zana Zinazohitajika
3- Kishikilia Nafasi
- Kishikilia Nafasi
- Kishikilia Nafasi
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Blueprint zinazohusiana
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