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Takaitaccen Gabatarwa ga Warkar da Kai na Masu Karfe Fina-Finai (1)

Babban fa'idar capacitors na organometallic film capacitors shine cewa suna warkar da kansu, wanda ya sa waɗannan capacitors su zama ɗaya daga cikin mafi girma capacitors a yau.

Akwai hanyoyi daban-daban guda biyu don warkar da kai na masu ƙarfin fim ɗin ƙarfe: ɗaya shine fitar da kai;dayan kuma shi ne electrochemical warkar da kai.Tsohon yana faruwa ne a mafi girman ƙarfin lantarki, don haka ana kuma kiransa da babban ƙarfin wutar lantarki;saboda na karshen kuma yana faruwa ne a ƙarancin wutar lantarki, galibi ana kiransa da ƙananan ƙarfin wutar lantarki.

 

Fitar da Kai

Don kwatanta tsarin fitar da kai, ɗauka cewa akwai lahani a cikin fim ɗin halitta tsakanin nau'ikan lantarki guda biyu masu ƙarfe tare da juriya na R. Dangane da yanayin lahani, yana iya zama lahani na ƙarfe, semiconductor ko mara kyau. lahani mai rufi.Babu shakka, lokacin da lahani ya kasance ɗaya daga cikin tsoffin, capacitor zai sauke kansa a ƙananan ƙarfin lantarki.Sai kawai a cikin akwati na ƙarshe abin da ake kira babban ƙarfin wutar lantarki ya warke kanta.

Tsarin fitar da warkar da kai shine nan da nan bayan amfani da wutar lantarki V zuwa capacitor na fim mai ƙarfe, ohmic current I=V/R yana wucewa ta cikin lahani.Saboda haka, yawan adadin J=V/Rπr2 na yanzu yana gudana ta hanyar lantarki mai ƙarfe, watau, kusancin wurin zuwa lahani (ƙaramin r shine) kuma mafi girma yawan adadinsa na yanzu yana cikin lantarki mai ƙarfe.Saboda zafin Joule da lalacewa ta hanyar amfani da wutar lantarki W=(V2/R) r, juriya R na wani semiconductor ko insulating lahani yana raguwa sosai.Don haka, I da wutar lantarki da ake amfani da su na yanzu suna ƙaruwa da sauri, sakamakon haka, ƙimar J1 = J=V/πr12 na yanzu yana tashi sosai a yankin da ƙarfe mai ƙarfe ya yi kusa da lahani, kuma zafinsa na Joule na iya narkar da ƙarfe. Layer a cikin yankin, yana haifar da baka tsakanin na'urorin lantarki don tashi a nan.Arc ɗin yana ƙafe da sauri ya watsar da narkakkar ƙarfen, yana samar da yankin keɓewa ba tare da Layer na ƙarfe ba.An kashe baka kuma ana samun warkar da kai.

Saboda zafi Joule da baka da aka haifar a cikin fitarwar tsarin warkar da kai, dielectric a kusa da lahani da keɓancewar yanki na dielectric surface babu makawa lalacewa ta hanyar thermal da lantarki lalacewa, kuma haka sinadaran bazuwar, gasification da carbonization, har ma. lalacewar inji yana faruwa.

 

Daga abin da ke sama, don cimma cikakkiyar warkewar kai tsaye, ya zama dole don tabbatar da yanayin da ya dace na gida a kusa da lahani, don haka ƙirar ƙirar fim ɗin ƙarfe ta ƙarfe tana buƙatar haɓakawa don cimma matsakaicin matsakaici a kusa da lahani, kauri mai dacewa na Layerized metalized, yanayin hermetic, da ingantaccen ƙarfin lantarki da ƙarfin gaske.Abin da ake kira cikakkiyar zubar da kai shine: lokacin warkar da kai yana da ɗan gajeren lokaci, makamashi mai warkarwa kadan ne, kyakkyawan keɓewa na lahani, babu lalacewa ga dielectric kewaye.Don samun kyakkyawar warkar da kai, kwayoyin halitta na fim ɗin ya kamata su ƙunshi ƙananan rabo na carbon zuwa hydrogen atoms da matsakaicin adadin oxygen, ta yadda lokacin da bazuwar kwayoyin fina-finai ya faru a cikin zubar da kai, a'a. Ana samar da carbon kuma ba a sami isassun carbon ba don guje wa samuwar sabbin hanyoyin gudanarwa, amma ana samar da CO2, CO, CH4, C2H2 da sauran iskar gas don kashe baka tare da hauhawar iskar gas.
Don tabbatar da cewa kafofin watsa labaru da ke kewaye da lahani ba su lalace ba lokacin da ake warkar da kai, ƙarfin warkar da kansa bai kamata ya zama babba ba, amma kuma ba ma ƙanƙanta ba, don cire ƙwayar ƙarfe a kusa da lahani, samuwar rufi. (high juriya) yanki, lahani za a ware, don cimma nasarar warkar da kai.Babu shakka, ƙarfin warkar da kai da ake buƙata yana da alaƙa da ƙarfe na Layer na ƙarfe, kauri, da muhalli.Sabili da haka, don rage ƙarfin warkar da kai da kuma samun kyakkyawan warkarwa, ana yin gyaran fuska na fina-finai na halitta tare da ƙananan ƙananan ƙarfe. , yankin keɓewar rufewa zai zama kamar reshe kuma ya kasa samun kyakkyawan warkar da kai.CRE capacitors duk suna amfani da fina-finai na yau da kullun, kuma a lokaci guda tsauraran matakan binciken kayan da ke shigowa, suna toshe fina-finai mara kyau a ƙofar, ta yadda ingancin fina-finai na capacitor yana da cikakken garanti.

 

Baya ga fitar da warkar da kai, akwai kuma wani, wato electrochemical warkar da kai.Bari mu tattauna wannan tsarin a talifi na gaba.


Lokacin aikawa: Fabrairu-18-2022

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