Ephrintiwe wesifunda ibhodi (PCBS) amashidi enziwe nge-fiberglass, inhlanganisela ye-epoxy resins noma ezinye izinto ezinamathele. I-PCBS itholakala ezinhlotsheni ezahlukahlukene zikagesi nezikagesi (isb. Ama-buzzers, imisakazo, ama-radar, izinhlelo zamakhompiyutha, njll.). Izinhlobo ezahlukahlukene ze-PCBS zingasetshenziswa ngokuya ngohlelo. Yiziphi izinhlobo ezahlukahlukene ze-PCBS? Funda ukuze uthole.

Yiziphi izinhlobo ezahlukahlukene ze-PCBS?

Ama-PCBS ajwayele ukuhlukaniswa ngemvamisa, inani lezendlalelo ezisetshenzisiwe, kanye ne-substrate. Ezinye izinhlobo ezidumile kuxoxwa ngazo ngezansi.

L i-PCB emaceleni

I-PCB emaceleni awodwa uhlobo oluyisisekelo lwebhodi lesifunda, eliqukethe ungqimba olulodwa kuphela lwe-substrate noma impahla eyisisekelo. Ungqimba lumbozwe ngensimbi ezacile, ithusi, okungumqhubi omuhle kagesi. Lawa ma-PCBS aqukethe nesendlalelo sokuvikela ukumelana nesovers esetshenziswa phezulu koqweqwe lwethusi ngokuhlangana nesembozo sesilika. Ezinye izinzuzo ezinikezwa yi-PCBS emaceleni eyodwa yilezi:

I-PCB emaceleni asetshenziselwa ukukhiqiza ngobuningi nezindleko eziphansi.

La ma-PCBS asetshenziswa kuma-circuits alula njengama-sensors kagesi, ama-relays, izinzwa namathoyizi kagesi.

L i-PCB emaceleni amabili

Zombili izinhlangothi ze-PCB emaceleni omabili zinezendlalelo ezihamba ngensimbi. Izimbobo ebhodini lesifunda zivumela izingxenye zensimbi ukuthi zixhunywe kolunye uhlangothi. Lawa ma-PCBS axhumene nesekethe ngapha nangapha ngamasu okusebenzisa imbobo noma ukukhweza komhlaba. Inqubo yokufaka imbobo ifaka phakathi ukudlulisa umhlangano wokuhola ngembobo yangaphambi kokumba ebhodini bese uyishisela kuphedi ohlangothini oluphambene. Ukukhweza okungaphezulu kubandakanya ukufaka izinto zikagesi ngqo ebusweni bebhodi lesifunda. I-PCBS emaceleni amabili inikela ngezinzuzo ezilandelayo:

Ukukhweza okungaphezulu kuvumela amasekethe amaningi ukuthi axhunywe ebhodini kunokufakwa emgodini.

La ma-PCBS asetshenziswa kakhulu ezinhlelweni zefoni ephathekayo, ukuqapha amandla, imishini yokuhlola, ama-amplifiers nezinye izinhlelo zokusebenza eziningi.

L multilayer PCB

A PCB multilayer kuyinto ephrintiwe wesifunda ibhodi ehlanganisa izingqimba zethusi ezingaphezu kwezimbili, ezifana 4L, 6L, 8L, njll Lawa ma-PCBS enweba ubuchwepheshe obusetshenziswa kuma-PCBS anezinhlangothi ezimbili. Izendlalelo ze-substrate nokufakwa zihlukanisa izingqimba ku-PCB enezingqimba eziningi. Ama-PCBS alingana ngosayizi futhi anikela ngesisindo nangezikhala zesikhala. Ezinye izinzuzo ezinikezwa yi-multilayer PCBS yilezi:

Ama-PCBS amaningi anikezela ngezinga eliphakeme lokuguquguquka kokuklama.

Lawa ma-PCBS adlala indima ebalulekile kumasekethe anejubane elikhulu. Banikeza isikhala esiningi samaphethini wabaqhubi nemithombo yamandla.

L PCB eqinile

Ama-PCBS aqinile yilawo enziwe ngezinto eziqinile futhi angeke agobeke. Ezinye izinzuzo ezibalulekile ezinikezayo:

La ma-PCBS ahlanganisiwe, aqinisekisa ukuthi kwenziwa amasekethe ahlukahlukene ayinkimbinkimbi nxazonke zawo.

Ama-PCBS anzima kulula ukuwalungisa nokuwagcina ngoba zonke izingxenye zimakwe ngokucacile. Ngaphezu kwalokho, izindlela zesiginali zihleleke kahle.

L i-PCB eguquguqukayo

I-PCB eguqukayo yakhelwe ezintweni eziguquguqukayo zesisekelo. Lawa ma-PCBS ayatholakala ngamafomethi ohlangothini olulodwa, ohlangothini olubili nongqimba oluningi. Lokhu kusiza ukunciphisa ubunzima phakathi kwezingxenye zedivayisi. Ezinye izinzuzo ezinikezwa yi-PCBS yilezi:

Lawa ma-PCBS asiza ukonga isikhala esiningi futhi anciphise isisindo sebhodi jikelele.

I-Flexible PCBS isiza ukunciphisa usayizi webhodi ngakho-ke ilungele izinhlobonhlobo zezicelo ezidinga ukuminyana kwesiginali ephezulu.

Lawa ma-PCBS enzelwe izimo zokusebenza lapho kubhekwa izinga lokushisa nobuningi.

L Ngesandla Esiqinile – nezimo -PCB

Izimo eziqinile – I-PCB iyinhlanganisela yamabhodi wesifunda aqinile futhi aguquguqukayo. Ziqukethe izingqimba eziningi zamasekethe aguquguqukayo axhumeke kupuleti eliqinile elingaphezu kwelilodwa.

La ma-PCBS akhiwe kahle. Ngenxa yalokhu, isetshenziswa ezinhlobonhlobo zezicelo zezokwelapha nezempi.

Lawa ma-PCBS alula, alondoloza kufika ku-60% wesisindo nendawo.

L i-PCB yemvamisa ephezulu

I-Hf PCBS isetshenziswa ebangeni lemvamisa le-500MHz kuye ku-2GHz. Lawa ma-PCBS angasetshenziswa ezinhlobonhlobo zezicelo ezibucayi zemvamisa, ezinjengezinhlelo zokuxhumana, i-microwave PCBS, i-microstrip PCBS, njll.

L I-PCB yasemuva ye-Aluminium

Lezi zingcwecwe zisetshenziselwa ukusetshenziswa kwamandla amakhulu ngoba isakhiwo se-aluminium sisiza ukuqeda ukushisa. Ama-PCBS asekelwa nge-Aluminium aziwa njengamazinga aphezulu okuqina namazinga aphansi wokunwebeka okushisayo, okwenza kube lula kuzinhlelo zokusebenza ezinokubekezelelana okuphezulu kwemishini. I-PCB isetshenziselwa ukunikezwa kwe-LED namandla.

Isidingo se-PCBS sibamba kuzo zonke izimboni. Namuhla, uzothola abakhiqizi nabasabalalisi be-PCB abaziwayo abangahlangabezana nezidingo zemakethe yemishini exhumekile yokuncintisana. Kuhlala kunconywa ukuthi kuthengwe ama-PCBS wokusetshenziswa kwezimboni nokuhweba kusuka kubakhiqizi nabahlinzeki abanedumela elihle.