Iyini i-circuit board conformal coating?uyini umphumela?
Indlela yokwenza imikhiqizo iqine ezindaweni ezinokhahlo nakho kuyisihloko esibalulekile.Siyivikela kanjani imikhiqizo yethu enembayo kule miphumela elimazayo?Ekuqaleni, izinto zikagesi zazivikelwa ngendlela ebizwa ngokuthi i-potting.Lokhu kufezwa ngokufaka izinto zikagesi endaweni ebiyelwe ngokwezifiso yepulasitiki evuleke ekugcineni, kufane nesitjali esimise ngendlela eyinqaba.Bese uyigcwalisa ngezinto ezingezona e-conductive njenge-acrylic noma i-silicone.Lokhu kuvikela idivayisi endaweni engaphandle, kodwa idla isikhathi, inkulu, iyasinda futhi ibiza kakhulu.Bambalwa kakhulu abantu abangaphandle kwamakhasimende ezempi noma ezimboni abangayisebenzisa ngempela.Njengoba izinto ze-elekthronikhi ziba zincane futhi isikhala, isisindo, isikhathi kanye nezici zezindleko ziba zibaluleke kakhulu, enye indlela yokuqinisa isiye yanda kakhulu: ukugqoka okuhambisanayo, indinganiso yokugqoka okuhambisanayo ngokujwayelekile Kuwugqinsi olungaphansi kuka-0.21mm.
I-Conformal coating iwukusetshenziswa kwezinto ezisetshenziselwa ukumboza ingaphezulu lomkhiqizo ukuze kuvikelwe izingxenye ze-elekthronikhi ezindaweni ezinokhahlo.Okuvame kakhulu umswakama.Izimboni ezijwayele ukusebenzisa izimbotshana ezihambisanayo nazo ziyakhula, kodwa ikakhulukazi ezempilo, ezempi, ezasolwandle, ezezimoto nezimboni.Izembatho ezivumelanayo nazo zivame ukusetshenziswa emikhiqizweni ethile eqediwe evamise ukuchayeka emanzini noma endaweni yamakhemikhali, efana nemishini yokuwasha, imishini yokuwasha, nanoma iyiphi into eklanyelwe ukuba ngaphandle, njengamakhamera okuphepha.Ngaphezu kokuvikela izinto zikagesi, okokugqokwa okuhambisanayo kungasetshenziswa emisebenzini yezimonyo njengokwengeza ukumelana nokuklwebheka noma kwe-oxidation ezindaweni ezingaphezulu (amajazi acacile ezimotweni), ukwengeza umuzwa ocwebezelayo noma oshelelayo kuma-casings, ukwengeza ama-smudges/izigxivizo zeminwe noma ngisho nokushintsha izici zokubona ilensi.
Indlela yokulondoloza ibhodi lesifunda?
Kunezindlela ezahlukene zokugqoka amabhodi wesifunda, ngayinye edinga izinto ezihlukahlukene zokugqoka ukuze kuzuzwe.Okokuqala, udinga ukunquma ukuthi inhloso yokumboza iyini.Ingabe uvikela i-PCBA esimweni sezulu, amafutha ahlukahlukene, ukudlidliza komshini, isikhunta, njll.?Izinto ezihlukene zisetshenziselwa izinhloso ezahlukene, futhi ikhemistri esetshenziselwa ukumboza ichaza kahle ukuthi ukugqoka kungafinyelela ini.Isibonelo, uma ufuna ukuvikela i-PCBA yakho kumswakama nesifutho sikasawoti, futhi ufuna ukwandisa ukumelana ne-ESD, i-parylene ingaba yisinqumo esihle.Kodwa-ke, uma izinto eziku-PCBA zizwela ukushisa noma i-vacuum, i-parylene akuyona inketho enhle ngoba zombili izakhi zikhona phakathi nenqubo yokumboza i-parylene.I-Acrylic ayikwazi ukwenza ugesi omningi, kodwa izovikela i-PCBA yakho kumswakama nesifutho sikasawoti.Ingasetshenziswa futhi ngezindlela ezihlukahlukene ekamelweni lokushisa.
Ukwahlukaniswa kanye Nezinto Ezingavuthiwe Zezingubo Ezivumelanayo
Ama-Acrylic cishe amapende asetshenziswa kakhulu namuhla.Kubuye kube yimpahla eshibhe kakhulu esetshenziswayo.Izinzuzo zayo eziyinhloko yizindleko nokuphatheka kalula, kodwa futhi inezinye izici ezibalulekile.Ukushisa kuyayithambisa, futhi iyavutha, okusho ukuthi ingaba brittle ngaphansi kwezimo ezithile futhi, njengezinye isikhunta, isengozini yokulimala kwamakhemikhali nokuhlaselwa kwezinto eziphilayo.Uma kudingeka kusetshenzwe kabusha, kungasuswa kusetshenziswa izincibilikisi noma ukushisa.
I-polyurethane enye i-coating evamile.Njengoba kunikezwe izici zayo ezishelelayo ze-hydrophobic kanye ne-oleophobic, iyinto enhle kakhulu yokuhlanganisa.Kodwa-ke, lezi zakhiwo ezifanayo zisho ukuthi mancane amathuba okuthi inamathele kwezinye izindawo, futhi ukucisha kufanele kuncishiswe.Ukusebenza kabusha kudinga izincibilikisi ezikhethekile ukuze zisuswe.
Ama-Silicone anezakhiwo eziyingqayizivele eziwenza abe yizingubo eziwusizo lapho abanye bengekho.Imelana namazinga okushisa aphezulu, inert biologically kanye namakhemikhali, kanye kanye ne-hydrophobic kanye ne-oleophobic.Lezi zakhiwo zibuye zisho ukuthi kunzima ukuhlanganisa nezinye izinto, futhi izinyathelo zokunciphisa kufanele zithathwe ukuze kuvinjelwe i-delamination.Ukuthungwa kwayo kwerabha nokumelana namakhemikhali nakho kwakusho ukuthi kufanele isuswe ngomshini ukuze isebenze kabusha.
I-Epoxy resin iyinto eqinile kakhulu futhi inokusetshenziswa okuhlukile.Ukuqina kwayo kusho ukuthi ingasetshenziswa njengesiqiniseko semishini, kodwa okuthakazelisa kakhulu ingasetshenziswa njengethuluzi lokuphepha.Ukuhlanganisa i-epoxy nezinye izinto, njengama-crossbar, kwakha isakhiwo esiqinile esizozicekela phansi sona kanye namadivayisi aseduze uma kuzanywa ukuyihlukanisa ne-PCBA.Ama-epoxies nawo ayakwazi ukumelana nokushisa namakhemikhali.Ukuqina kwayo nesikhathi sokumisa nakho kuyimbi njengoba kwandisa isikhathi sokucubungula futhi kwenza ukusebenza kabusha kucishe kungenzeki.
I-Nanocoatings iyisixazululo esivelayo.Njengoba lobu buchwepheshe bukhula, izakhiwo kanye nokusebenza kwama-nanocoatings kuthuthuka ngokushesha.I-solvent equkethe ama-nanoparticles amisiwe isetshenziswa epuletini, bese ipuleti liyomiswa emoyeni noma libhakwe kuhhavini.Ihhavini liphinde lincibilikise ama-nanoparticles abe yi-substrate efana nengilazi.Imvelo emincane kakhulu yama-nanocoatings isho ukuthi iyakwazi ukugqokwa kodwa kulula ukuphinda isebenze.
Isikhathi sokuthumela: Jun-19-2023