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Igishushanyo-kinini cya PCB Igishushanyo n'Inteko: Ibikoresho by'ingenzi

2024-07-17

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Ikibaho cyinshi cyacapishijwe imbaho ​​zumuzunguruko(PCBs) nibintu byingenzi mubice bitandukanye bya porogaramu, harimo itumanaho, sisitemu ya radar, itumanaho ridafite insinga, hamwe no gutunganya amakuru yihuse. Imikorere yizi PCBs iterwa cyane nibikoresho byatoranijwe kubishushanyo no guteranya. Iyi ngingo irasesengura ibikoresho byibanze bikoreshwa muri igishushanyo mbonera cya PCB no guteranya, gushimangira ibiranga ibyiza byabo.

  • Ibikoresho shingiro: Ibikoresho fatizo bigize urufatiro rwumuvuduko mwinshi PCB kandi bigira uruhare runini mukumenya imiterere yamashanyarazi. Bimwe mubikoresho byibanze byifashishwa bikoreshwa cyane-PCBs zirimo:
  • FR-4: Ubukungu kandi bukoreshwa cyane epoxy resin fiberglass compte, FR-4 itanga imashini nziza kandiubushyuhe bwumuriro.Nyamara,dielectric ihoraho(Dk) naImpamvu yo gutandukana(Df) ntishobora kuba nziza kubisabwa-byinshi.
  • Ibikoresho bya Rogers: Rogers azwi cyane kubera ibikoresho bya dielectric bikora cyane, nka RT / Duroid. Ibi bikoresho biranga dielectric ihoraho (Dk) nibintu bitandukanya (Df) indangagaciro, bigatuma bikwiranye cyane na progaramu ya PCB yumurongo mwinshi.
  • Ibikoresho bya Taconic.

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  • Ibikoresho byayobora: Guhitamo ibikoresho byayobora nibyingenzi mugushushanya kwinshi kwa PCB mugihe bigena imiyoboro yumuzunguruko, kurwanya, hamwe nuburinganire bwibimenyetso. Bimwe mubikoresho bikoreshwa cyane muri PCBs nyinshi zirimo:
  • Umuringa: Umuringa nicyo kintu gikoreshwa cyane mu kuyobora bitewe nubushobozi budasanzwe kandiikiguzi. Nyamara, kurwanya kwayo kwiyongera hamwe ninshuro, bityo umuringa woroshye urashobora gukoreshwa mugukoresha inshuro nyinshi.
  • Zahabu: Zahabu izwiho kuba idasanzwe kandi irwanya imbaraga nke, bigatuma ikwiranye na PCB nyinshi cyane. Iratanga kandi ibyizaKurwanya ruswano kuramba. Nyamara, zahabu ihenze kuruta umuringa, igabanya imikoreshereze yayo ikiguzi-cyoroshye.
  • Aluminium: Aluminium ni amahitamo make kuri PCBs nyinshi ariko irashobora gukoreshwa mubikorwa byihariye aho uburemere nigiciro aribibazo byibanze. Imikorere yayo iri munsi yumuringa na zahabu, bishobora gukenera kwitabwaho mugushushanya.
  • Ibikoresho bya Dielectric: Ibikoresho bya dielectric nibyingenzi mugukingira inzira ziyobora kuri PCB kandi nibyingenzi mukumenya amashanyarazi ya PCB. Bimwe mubikoresho byo hejuru bya dielectric bikoreshwa muri PCBs nyinshi zirimo:
  • Umwuka: Umwuka ni ibikoresho byiganjemo dielectric kandi bitanga imikorere myiza yamashanyarazi kumurongo mwinshi. Nyamara, ubushyuhe bwumuriro bwayo bugarukira, kandi ntibushobora kuba bubereye ubushyuhe bwo hejuru.
  • Polyimide: Polyimide ni aibikoresho byinshi bya dielectricuzwi cyane kubera ubushyuhe budasanzwe bwumuriro hamwe nagaciro ka Df. Ikoreshwa cyane muri PCBs nyinshi zikenera kwihanganira ubushyuhe bwinshi.
  • Epoxy: Ibikoresho bya dielectric bishingiye kuri Epoxy bitanga imashini nziza nubushyuhe. Bakunze gukoreshwa mubikoresho fatizo bya FR-4 kandi bitanga amashanyarazi meza kugeza kumurongo runaka.

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Guhitamo ibikoresho byo gushushanya cyane PCB no guteranya ni ngombwa kugirango ugere ku mikorere myiza. Ibikoresho shingiro, ibikoresho bitwara, nibikoresho bya dielectric byose bigira uruhare runini mukumenya amashanyarazi ya PCB, ubuziranenge bwibimenyetso, no kwizerwa. Abashushanya bagomba guhitamo neza ibyo bikoresho bashingiye kubisabwa byihariye kugirango babashe gukora neza. Mugihe ikoranabuhanga rikomeje gutera imbere, ibikoresho bishya nibizamurwa mubikoresho biriho bizakomeza kugaragara, byongere ubushobozi bwa PCBs nyinshi.