- 24
- Sep
Idizayini ye-Military neye-aerospace
Ezempi nezindiza PCB zivame ukuba ngaphansi kwezimo ezinzima zemvelo, kufaka phakathi amazinga okushisa aphakeme / aguquguqukayo, umswakama omkhulu nomswakama. Ngaphezu kwalokho, bavame ukuvezwa amakhemikhali anokhahlo, izixazululo ze-hydrocarbon, uthuli nokunye ukungcola. I-PCB kuphela ehlanganiswe kusuka ezintweni ezisezingeni eliphakeme ezenziwe ngokusebenzisa izindlela ezifanele zokukhiqiza ezingamelana nezimo ezinzima ekusetshenzisweni kwezempi nakwezindiza.
Ungayakha kanjani i-PCBS yezempi neyezindiza
Uma kuqhathaniswa namabhodi ajwayelekile, ama-PCBS asho ukuthi izinhlelo zamasosha nezasemkhathini zidinga ukucutshungulwa okukhethekile ekwakhiweni, ekwenziweni nasekuhlanganeni.
Lapho kuqoqwa ama-PCBS ezinhlelo zempi nezokundiza, kufanele kufakwe ezinye izici. Ezinye zazo zifaka:
L Sebenzisa umenzeli osakaza ukushisa lapho kudingeka.
L Faka ukuvikelwa okwengeziwe nokugxila ezintanjeni ezibucayi.
L Coat PCBS enekhwalithi ephezulu ye-acrylic spray yokuzivikela ezindaweni ezonakalisayo.
Sebenzisa izinto ezinokucaciswa kwezempi kunokuba nezinto zebanga lokuhweba.
L Sebenzisa izindlela ezifanele zokuqeda.
L Khetha ngokucophelela izinto zokwakha nezakhi ukumelana namazinga okushisa aphezulu. Lokhu kufaka phakathi iPyralux AP, i-epoxy laminates (isb. FR408) nezinto zokwenziwa zensimbi ezahlukahlukene.
L Sebenzisa izinto zokuqedela ezinokwethenjelwa ngokwedlulele ukuthuthukisa ukuvikelwa ezimeni ezinzima. Izinto ezivame kakhulu zokuhlobisa ezisetshenziswa emhlanganweni wezempi nowezindiza we-PCB zifaka:
n ENIG
Ukuhlolwa kwe-nickel negolide
n ENEPIG
N HASL engenakho ukuhola
N leaching isiliva
N Intambo ye-Electrolytic yegolide e-weldable
UN ngu
N igolide elisindayo
N isibhamu
L Ikhiqiza ibanga lezempi nelezindiza i-PCBS ehambisana namamil-PRF-31032, MIL-PRF-50884 kanye namazinga we-MIL-PRF-55110.
L Sicela uqinisekise amandla okugoba, amandla ebhondi, ububanzi bocingo, ukujiya, ukuxazulula, ukushuba kokumboza okuvikelayo ne-dielectric kahle ngaphambi kokuthunyelwa. Qiniseka ukuthi usukulungele ukuwasebenzisa ezindaweni ezinzima zezimboni.
Ukugcina ikhwalithi nokuqina kubalulekile lapho kuklanywa ibanga lempi nelokundiza nge-PCBS. Ukwehluleka kwe-PCB kungathinta kakhulu ukusebenza kohlelo lokusebenza futhi ngaleyo ndlela kube impumelelo yempokophelo ephelele.