Isisindo Sethusi Sokwenziwa Kwe-PCB: Umhlahlandlela Oyisisekelo

Amabhodi esekethe aphrintiwe (ama-PCB) ayingxenye ebalulekile yezinto zikagesi zesimanje. Zisebenza njengomgogodla wemishini ye-elekthronikhi, zinikeza inkundla yokuxhumanisa izingxenye ze-elekthronikhi.I-Copper iyi-conductor kagesi enhle kakhulu futhi isetshenziswa kakhulu ekukhiqizeni i-PCB.

Enqubweni yokukhiqiza ye-PCB, isisindo sethusi sidlala indima ebalulekile.Isisindo sethusi sibhekisela kubukhulu noma inani lethusi elisetshenziswa ebusweni bebhodi lesifunda. Isisindo sethusi esisetshenziswa ekwenziweni kwe-PCB sithinta ngqo izakhiwo zikagesi nezemishini zebhodi. Kule bhulogi, sizohlola izisindo ezehlukene zethusi ezisetshenziswa ekwenziweni kwe-PCB kanye nokubaluleka kwazo.

Ukuqonda Isisindo Sethusi Ekwenziweni Kwe-PCB

Isisindo sethusi ngokuvamile silinganiswa ngama-ounces ngonyawo lwesikwele ngasinye (oz/ft²). Izisindo zethusi ezisetshenziswa kakhulu ekukhiqizeni i-PCB ibanga ukusuka ku-0.5 oz/square foot (17 µm) ukuya ku-3 oz/square foot (105 µm). Lezi zisindo zinquma ukujiya kwethusi kwezendlalelo zangaphandle ze-PCB, izendlalelo zangaphakathi, nezimbobo zethusi ezicwebeziwe.

Ukukhethwa kwesisindo sethusi kuncike ezintweni ezifana nokusebenza kukagesi okudingekayo, amandla emishini kanye nezindleko. Ake

bheka ngokujulile izisindo zethusi ezahlukene kanye nokusetshenziswa kwazo ekukhiqizeni i-PCB.

1. 0.5 oz/ft2 (17 µm) Isisindo Sethusi:
Lesi isisindo sethusi esincane kunazo zonke esisetshenziswa ekukhiqizeni i-PCB. Ivamise ukusetshenziswa ezinhlelweni ezilula nezingasindi ze-PCB. Lawa mabhodi avame ukusetshenziswa ku-electronics yabathengi lapho izindleko nesisindo zicatshangelwa kakhulu. Kodwa-ke, ukushuba kwethusi okuncishisiwe kuthinta ikhono lokuthwala imisinga ephezulu futhi kungase kubangele ukumelana okwandisiwe.

2. 1 oz/square foot (35 µm) isisindo sethusi:
Lesi yisisindo sethusi esisetshenziswa kakhulu ekukhiqizeni i-PCB. Ifinyelela ukulingana phakathi kokusebenza nokusebenza kahle kwezindleko. Ama-PCB ano-1 oz/sq. Isisindo sethusi singakwazi ukuphatha imisinga emaphakathi futhi ilungele izinhlelo zokusebenza ezihlukahlukene, okuhlanganisa ezokuxhumana, ezezimoto kanye nogesi wezimboni.

3. 2 oz/square foot (70 µm) isisindo sethusi:
Njengoba isidingo samandla okuphatha amanje aphezulu sikhula, ama-PCB anesisindo sethusi sama-ounces angu-2/square foot abalulekile. Aziwa ngokushintsha kwawo okushisayo okuthuthukisiwe, lawa mabhodi ajwayele ukusetshenziswa kugesi wamandla, izikhulisamandla zamandla aphezulu, izinhlelo ze-UPS nezinye izinhlelo zokusebenza ezidinga amandla okuthwala anamandla amanje.

4. 3 oz/ft2 (105 µm) Isisindo Sethusi:
Ama-PCB anesisindo sethusi sama-ounces angu-3 ngonyawo lwesikwele abhekwa njengamabhodi ethusi asindayo. Lawa mabhodi asetshenziswa ezinhlelweni ezidinga amandla amakhulu okuthwala wamanje noma ukuchithwa okungcono kokushisa. Ezinye izibonelo zifaka amasistimu okusabalalisa amandla, amashaja amabhethri amanje aphezulu, nezilawuli zezimoto.

Ukubaluleka Kwesisindo Sethusi Ekukhiqizeni I-PCB

Ukukhetha isisindo sethusi esifanele kubalulekile ekuqinisekiseni ukusebenza nokuthembeka kwe-PCB. Nazi ezinye izici ezibalulekile ezigqamisa ukubaluleka kwesisindo sethusi:

1. Ukusebenza kukagesi:
Isisindo sethusi sinquma ikhono le-PCB lokuthwala lamanje ngaphandle kokudala ukumelana okukhulu. Ukuqina kwethusi okunganele kungabangela ukumelana nokuphakama, okuholela ekwehleni kwe-voltage kanye nokushisa ngokweqile kwebhodi. Ngakolunye uhlangothi, isisindo esiphezulu sethusi sivumela ukuphatha okungcono kwamanje nokumelana okuphansi.

2. Amandla omshini:
Ngaphezu kokusebenza ngogesi, ithusi liphinde linikeze ukuqiniswa kwemishini ku-PCB. Isisindo sethusi esifanele sengeza amandla nokuqina ebhodini lesifunda, elivumela ukuthi limelane nokugoba, ukugoba, noma okunye ukucindezeleka ngokomzimba.

3. Ukuphatha okushisayo:
I-Copper iyi-conductor enhle kakhulu yokushisa. Isisindo sethusi esanele sisiza ukuqeda ukushisa okukhiqizwa izingxenye ezifakwe ku-PCB. Lokhu kuvimbela ukucindezeleka okushisayo noma ukwehluleka kwengxenye ngenxa yokushisa ngokweqile, ukuqinisekisa ukuthi isikhathi eside nokuthembeka kwebhodi.

4. Landelela ububanzi nemihlahlandlela yesikhala:
Isisindo sethusi sithinta ububanzi bokulandelela kanye nemihlahlandlela yesikhala phakathi nokuhlelwa kwe-PCB nokuklama. Isisindo sethusi esiphezulu sidinga ububanzi bokulandelela okubanzi kanye nesikhala ukuze kuvunyelwe ukugeleza kwamanje okusebenzayo futhi kugwenywe ukukhuphuka kwezinga lokushisa elidlulele.

Ekuphetheni

Ngokufigqiwe,ukukhetha isisindo sethusi esifanele kubalulekile ekuklameni i-PCB esebenza kahle futhi enokwethenjelwa.Ukukhetha kuncike ezidingweni ezithile zohlelo lokusebenza, kucatshangelwa ukusebenza kukagesi, amandla emishini kanye nezidingo zokuphatha ezishisayo. Noma ngabe ama-elekthronikhi angasindi wabathengi noma izinhlelo zokusebenza zezimboni ezinamandla amakhulu, isisindo sethusi sidlala indima ebalulekile ekukhiqizweni kwe-PCB futhi kufanele kucatshangelwe ngokucophelela phakathi nesigaba sokuklama.