Konjiniyela abaningi bezinto zikagesi, mhlawumbe, bangochwepheshe ekuklameni amabhodi abo e-PCB, futhi bazi kahle ukuthi hlobo luni lwendawo yokusebenza i-PCB yabo ezosetshenziswa kuyo, kodwa abanalo ulwazi lokuthi bangawavikela kanjani amabhodi wabo wesifunda nezingxenye futhi banwebe impilo yesevisi.Yilokho ukunamathela okuqondile.
Kuyini ukunamathela okuhlelekile?
I-conformal coating ifilimu encane ye-polymeric esetshenziswa ebhodini lesifunda eliphrintiwe (PCB) ukuze kuvikelwe ibhodi nezingxenye zalo emvelweni nokugqwala.Ifilimu ivamise ukusetshenziswa ku-25- 250µm futhi 'ivumelana' nokuma kwebhodi nezingxenye zalo, elimboza futhi livikela amalunga e-solder, imikhondo yezingxenye ze-elekthronikhi, imikhondo eveziwe, nezinye izindawo ezinensimbi ekugqwaleni, ekugcineni inwebe impilo yokusebenza. kwe-PCB.
Kungani udinga i-conformal coating?
Ibhodi lesifunda eliphrintiwe elisanda kukhiqizwa lizosebenza kahle, kodwa ukusebenza kungawohloka ngokushesha ngenxa yezici zangaphandle endaweni yalo yokusebenza.Izembatho ezivumelanayo zingasetshenziswa ezindaweni eziningi ukuvikela amabhodi esekethe aphrintiwe kumswakama, isifutho sikasawoti, amakhemikhali nokweqisa kwezinga lokushisa ukuze kuvinjelwe izinto ezinjengokugqwala, ukukhula kwesikhunta kanye nokwehluleka kukagesi.Ukuvikelwa okunikezwa ama-coatings avumelanayo kuvumela ama-voltage aphezulu aphezulu kanye nesikhala esiseduze, okuzokwenza abaklami bakwazi ukuhlangabezana nezidingo ze-miniaturization nokuthembeka.
1. Izakhiwo zokuvikela ukushisa zivumela ukuncipha kwesikhala sekhondatha ye-PCB esingaphezu kuka-80%
2. Ingasiza ekuqedeni isidingo sezindawo ezivalekile eziyinkimbinkimbi, eziyinkimbinkimbi.
3. Isisindo esincane.
4. Vikela ngokuphelele umhlangano ekuhlaselweni ngamakhemikhali nokugqwala.
5. Ukuqeda ukucekelwa phansi kokusebenza okungenzeka ngenxa yezingozi zemvelo.
6. Nciphisa ukucindezeleka kwemvelo emhlanganweni we-PCB.
Ngokufanelekile, i-conformal coatings kufanele ibonise izici ezilandelayo:
1. Isicelo esilula.
2. Ukususwa okulula, ukukhanda nokushintshwa.
3. Ukuguquguquka okuphezulu.
4. Ukuvikelwa ekushaqekeni okushisayo nokwemishini.
5.Ukuvikela ezingozini zemvelo okuhlanganisa: umswakama, amakhemikhali nezinye izakhi ezigqwalayo.
Uyisebenzisa kanjani i-Conformal Coating?
Izindlela ezine eziyinhloko zokusebenzisa i-conformal coating:
1. Ukucwiliswa -kunqunyelwe ezintweni ezingelapheki ngokushesha ngenxa yomswakama, i-oxidation noma ukukhanya.
2. I-robotic coating ekhethiwe -njenge-Asymtek, i-PVA noma i-DIMA.Zonke izinhlobo zokugqoka zingasetshenziswa uma ikhanda elifanele lokukhipha likhethiwe.
3. Ukufafaza – fafaza ngesandla usebenzisa idokodo lokufutha noma ithini le-aerosol.Zonke ezinengilazi zingasetshenziswa ngale ndlela.
4. Ukuxubha -kudinga ama-opharetha anekhono ngokwedlulele ukuze afanelekele izinjongo zokukhiqiza.
Ekugcineni kuzodingeka ucabangele indlela yokwelapha enqunywa ukunamathela okukhethiwe, okomile emoyeni, okomile kuhhavini noma ukwelapha ukukhanya kwe-UV.I-liquid enamathela kufanele imanzise kahle yonke indawo futhi ilaphe ngaphandle kokushiya ukukhubazeka.Ama-epoxies azwela kakhulu ukukhubazeka kwendawo.Ama-epoxies nawo angashwabana ngenkathi kulungiselelwa futhi angase alahlekelwe ukunamathela ngenxa yalokho Ngaphezu kwalokho;ukuncipha ngokweqile ngesikhathi sokwelashwa kungabeka ingcindezi enzima yemishini ezingxenyeni zesekethe.
Uma ufuna ukufunda kabanzi mayelana ne-conformal coating, i-PHILIFAST izokunikeza umhlahlandlela ngakho.I-PHILIFAST inaka imininingwane ngayinye ukuze ikunikeze amabhodi e-PCB impilo yesevisi ephezulu ngokuvikela ingxenye ngayinye ebalulekile noma yiziphi izingxenye kanye nesekhethi.
Isikhathi sokuthumela: Jun-22-2021