Ukubekezelelana kuthinta kanjani ukukhiqiza?

Isivuno se-PCB eqoqwe ngokugcwele noma I-PCB Assembly ngokuvamile ihlobene nokwakhiwa kwenani elikhulu lamabhodi, okuyinto ezimweni eziningi idinga ukuguqulwa kusuka ku-prototype kuya ekukhiqizeni okukhulu. Kwezinye izimo; ikakhulukazi umklamo okhethekile wezinhlelo ezibucayi ze-aerospace, imishini yezokwelapha kanye nezicelo zezimboni, ukukhiqizwa kweqoqo elincane kuyisigaba sokugcina sokukhiqiza. Kungakhathaliseki ukuthi iqoqo elincane noma iqoqo elikhulu, umgomo wesigaba sokugcina sokukhiqizwa kwe-PCBA ukukhetha okuphelele kwesivuno noma amaphutha ebhodi ayiziro, ukuze ingasetshenziswa njengoba kulindelekile.

Iphutha le-PCB okungenzeka libe yimbangela yokukhiqiza kungase kube iphutha lomshini. Okufana ne-delamination, ukugoba noma ukuphuka ngezinga elingabonakali, kungase kuphazamise ukusebenza kukagesi; isibonelo, ukungcola noma umswakama ebhodini noma ngaphakathi. Ibhodi lesifunda elihlanganisiwe nalo lizoba manzi futhi lingcoliswe. Ngakho-ke, kungcono kakhulu ukusebenzisa izindlela ze-PCB zokuvikela umswakama ngesikhathi nangemva kokukhiqiza. Ngaphandle kweziphambeko ezingase zingatholakali ngaphambi kokuba ibhodi lesifunda lifakwe futhi lisetshenziswe, kuneziphambeko ezisobala ezingenza ibhodi lesifunda lingasebenzi.

Inombolo yamabhodi akhiqizwa ihlukaniswe ngenani lamabhodi atholakalayo isivuno. Umehluko yinani lamabhodi angenasici adinga ukusetshenzwa kabusha (ezinye izenzo kufanele zithathwe ukuze kulungiswe amaphutha amancane futhi kulethe ibhodi esimweni esisebenzisekayo). Ku-PCBA engakwazi ukulungiswa ngokusebenza kabusha, kungase kudingeke ukuthi iklanywe kabusha. Lokhu kungase kusho amahora okusebenza engeziwe, kanye nokwenyuka kwezindleko zokukhiqiza nokuhlola.

Ungakuthuthukisa kanjani ukubekezelelana kwe-PCB

Ukubaluleka kokukhetha kwakho isevisi yoMhlangano angeke kugcizelelwe. Ukwenza ukukhetha okufanele kungase kube umehluko phakathi kwamabhodi okwamukela aklanyelwe ukuhlangabezana noma ukweqa izindinganiso zokulawula. Ukuhlukaniswa kwe-IPC noma cha. Ngokufanayo, izinzuzo ze-DFM azikwazi ukweqiwa ngokuthuthukiswa kwe-PCBA yakho. Izinqumo ezenziwe ngendlela efanele ngaphakathi kokubekezelelwa kwe-PCB kwemishini nezinqubo ze-CM ziqinisekisa ukuthi ibhodi lakho lesifunda lingakhiwa ngempela. Izithiyo ezichazwe yimithethonqubo zisungula imikhawulo eyamukelekayo yobubanzi bokubekezelela i-DFM ye-CM. Ukubekezelelwa kwe-PCB okukhethayo kufanele kube ngaphakathi kwalezi zigaba.

Ububanzi obuphelele bemishini ye-CM esinyathelweni esithile sokukhiqiza buchaza iwindi layo lokucubungula. Isibonelo, ubuncane be-diameter obuphelele bembobo yokubhoboza buchaza ububanzi obuncane bewindi lenqubo elisetshenziselwa ukudala imbobo yokubhoboza. Ngokufanayo, ububanzi bembobo obukhulu buchaza ububanzi bewindi bokucubungula obukhulu obusetshenziselwa ukudala imbobo. Uma nje lobu bukhulu obubonakalayo buhlangabezana nezidingo zomthetho, ungakhetha ngokukhululekile noma yimuphi usayizi ngaphakathi kobubanzi. Kodwa-ke, ukukhetha izimo ezimbi kakhulu kuyisinqumo esibi kakhulu ngoba kubeka ingcindezi eyengeziwe enqubweni yokumba ukuze kucace kakhudlwana futhi amathuba okuba nephutha kukhulu kakhulu. Ngokuphambene, indawo emaphakathi yewindi lenqubo yokukhetha iyisinqumo esingcono kakhulu, esinethuba elincane lephutha. Ngakho-ke, nciphisa ukuthi kungenzeka ukuthi iphutha liqine ngokwanele ukwenza ibhodi lakho lesifunda lingasebenziseki.

Ngokukhetha ukubekezelelwa kwe-PCB phakathi noma eduze nendawo yewindi lenqubo yezinyathelo zokukhiqiza zebhodi lesifunda, amathuba okuba khona kwamaphutha ebhodi lesifunda angancishiswa acishe abe ngu-zero, futhi umthelela omubi wokukhubazeka kwenqubo olungisekayo ekuvuneni ungaqedwa.