Ububanzi bomugqa kanye nokucaciswa kwesikhala kwama-PCB anezingqimba ezi-2

Kulokhu okuthunyelwe kwebhulogi, sizoxoxa ngezinto eziyisisekelo okufanele zicatshangelwe lapho ukhetha ububanzi bomugqa kanye nokucaciswa kwesikhala kwama-PCB anezingqimba ezi-2.

Lapho uklama futhi ukhiqiza amabhodi esekethe aphrintiwe (ama-PCB), okunye okucatshangelwayo okubalulekile ukunquma ububanzi bomugqa ofanelekile kanye nokucaciswa kwesikhala. Lezi zicaciso zinomthelela omkhulu ekusebenzeni kwe-PCB, ukwethembeka, nokusebenza.

1. Qonda okuyisisekelo kobubanzi bomugqa nesikhala:

Ngaphambi kokuthi singene emininingwaneni, kubalulekile ukuba siqonde ngokucacile ukuthi ububanzi bomugqa kanye nesikhala empeleni kusho ukuthini. Ububanzi bomugqa busho ububanzi noma ukujiya kwamathrekhi ethusi noma amakhondakta ku-PCB. Futhi isikhala sisho ibanga phakathi kwalezi zinsalela. Lezi zilinganiso zivame ukucaciswa ngamamilimitha noma amamilimitha.

2. Cabangela izici zikagesi:

Isici sokuqala okufanele icatshangelwe lapho ukhetha ububanzi bomugqa kanye nokucaciswa kwesikhala izici zikagesi ze-PCB. Ububanzi bokulandelela buthinta amandla okuthwala kwamanje wesekethe kanye nokuvinjwa. Ukulandelela okukhudlwana kungaphatha imithwalo yamanje ephezulu ngaphandle kokubangela ukulahlekelwa okunamandla okuphikisayo. Ukwengeza, isikhala phakathi kokulandela umkhondo sithinta amandla okuphambana kwe-crosstalk kanye ne-electromagnetic interference (EMI) phakathi kwamathrekhi aseduze noma izingxenye. Cabangela izinga le-voltage yesekethe, imvamisa yesignali, nokuzwela komsindo ukuze uthole imininingwane efanelekile kagesi.

3. Ukucatshangelwa kokukhishwa kokushisa:

Esinye isici esibalulekile okufanele sicatshangelwe ukuphatha okushisayo. Ububanzi bomugqa nesikhala somugqa budlala indima ekulahlekeni kokushisa okufanele. Ukulandelela okubanzi kusiza ukudluliswa kokushisa okuphumelelayo, kunciphisa amathuba okuba izingxenye zebhodi zishise ngokweqile. Uma i-PCB yakho idinga ukumelana nezinhlelo zokusebenza zamandla aphezulu noma isebenze endaweni enezinga lokushisa eliphezulu, ukulandelelwa okubanzi kanye nesikhala esikhulu kungase kudingeke.

4. Amandla okukhiqiza:

Lapho ukhetha ububanzi bemigqa nesikhala, amandla okukhiqiza womkhiqizi we-PCB kufanele acatshangelwe. Ngenxa yemikhawulo yemishini nenqubo, akubona bonke abakhiqizi abangafinyelela ububanzi bemigqa emincane kakhulu kanye nesikhala esiqinile. Kubalulekile ukuthintana nomkhiqizi wakho ukuze uqinisekise ukuthi imininingwane ekhethiwe ifinyelelwa ngokwamandla abo. Ukwehluleka ukwenza kanjalo kungase kubangele ukubambezeleka kokukhiqiza, izindleko ezikhuphukile, noma ngisho nezinkinga ze-PCB.

5. Ubuqotho besignali:

Ubuqotho besignali bubalulekile ekwakhiweni kwe-PCB. Ububanzi bomugqa kanye nokucaciswa kwesikhala kungathinta kakhulu ubuqotho besignali yamasekhethi edijithali anesivinini esikhulu. Isibonelo, kumadizayini wefrikhwensi ephezulu, ububanzi bemigqa emincane nesikhala esiqinile kungase kudingeke ukuze kuncishiswe ukulahleka kwesignali, ukungafani komugqa, nokuboniswa. Ukulingisa ubuqotho besignali nokuhlaziya kungasiza ekunqumeni ukucaciswa okufanele ukuze kugcinwe ukusebenza okuphezulu.

6. Usayizi we-PCB nokuminyana:

Usayizi we-PCB nokuminyana nakho kudlala indima ebalulekile ekunqumeni ububanzi bomugqa kanye nokucaciswa kwesikhala. Amabhodi amancane anesikhala esilinganiselwe angase adinge ukulandelelwa okuncane kanye nesikhala esiqinile ukuze amukele konke ukuxhumana okudingekayo. Ngakolunye uhlangothi, amabhodi amakhulu anezingqinamba zesikhala esincane angase avumele ukulandelelwa okubanzi kanye nesikhala esikhulu. Kubalulekile ukulinganisa phakathi kokuzuza ukusebenza okufunayo nokuqinisekisa ukukhiqizwa ngaphakathi kwesikhala sebhodi esitholakalayo.

7. Amazinga emboni nemihlahlandlela yokuklama:

Okokugcina, kunconywa ukuthi ubhekisele kumazinga emboni kanye nemihlahlandlela yokuklama lapho ukhetha ububanzi bomugqa kanye nokucaciswa kwesikhala. Izinhlangano ezifana ne-IPC (Electronic Industries Council) zihlinzeka ngamazinga athile nemihlahlandlela engasebenza njengezithenjwa ezibalulekile. Le mibhalo ihlinzeka ngolwazi oluningiliziwe ngobubanzi bomugqa ofanelekile kanye nesikhala sezinhlelo zokusebenza nobuchwepheshe obuhlukahlukene.

Ngokufigqiwe

Ukukhetha ububanzi bomugqa olungile kanye nokucaciswa kwesikhala kwe-PCB enezingqimba ezi-2 kuyisinyathelo esibalulekile enqubweni yokuklama. Ukuqinisekisa ukusebenza kahle, ukwethembeka, kanye nokwenziwa, izici ezifana nezici zikagesi, ukucatshangelwa kokushisayo, amandla okukhiqiza, ubuqotho besignali, ubukhulu be-PCB, namazinga omkhakha kufanele kucatshangelwe. Ngokuhlola ngokucophelela lezi zici nokusebenza eduze nomkhiqizi we-PCB, ungadizayina i-PCB enembile, ephumelelayo, futhi ehlangabezana nezidingo zakho.