Yintoni iSilkscreen kwiPCB?
Xa uyila okanye u-odola yakho iibhodi zesekethe eziprintiweyo , Ngaba kufuneka uhlawule ngaphezulu kwi-silkscreen?Kukho imibuzo ekufuneka uyazi ukuba yintoni i-silkscreen?Kwaye kubaluleke kangakanani i-silkscreen yakho Ukwenziwa kwebhodi yePCB okanye INdibano yeBhodi yeSekethe eprintiweyo ?Ngoku i-ABIS iya kukucacisela.
Yintoni i-silkscreen?
I-Silkscreen ngumaleko wolandelelwano lwe-inki esetyenziselwa ukuchonga amacandelo, amanqaku ovavanyo, iinxalenye zePCB, iisimboli zesilumkiso, iilogo kunye namanqaku njl njl. Le silkscreen idla ngokusetyenziswa kwicala lecandelo;nangona kunjalo ukusebenzisa i-silkscreen kwicala le-solder nayo ayiqhelekanga.Kodwa oku kunokonyusa iindleko.Ngokusisiseko isikrini sesilika sePCB esineenkcukacha sinokunceda umenzi kunye nenjineli ukufumana kunye nokuchonga onke amacandelo.
I-inki yi-inki ye-epoxy engaqhubekiyo.I-inki esetyenziselwa ezi mpawu yenziwe kakhulu.Imibala eqhelekileyo esiqhele ukuyibona imnyama, imhlophe kunye nomthubi.Isoftware yePCB ikwasebenzisa iifonti eziqhelekileyo kumaleko esikrini sesilika kodwa ungakhetha ezinye iifonti kwisixokelelwano.Ukuhlola isilika yemveli udinga isikrini sepolyester esolulwe kwiifreyimu ze-aluminiyam, i-laser photo plotter, umphuhlisi wesitshizi kunye nee-oveni zokunyanga.
Yintoni eya kuchaphazela i-silkscreen?
I-Viscosity: I-Viscosity ibhekiselele kwintshukumo ehambelanayo phakathi kweeleya zolwelo ezikufutshane xa ulwelo luhamba, emva koko ukuxhathisa ukukhuhla kuya kuveliswa phakathi kweeleya ezimbini zolwelo;iyunithi: Pascal imizuzwana (pa.s).
Ukuqina: Ukuqina kwe-inki emva kokubhaka kwangaphambili ngu-2B, ukuqina kwe-inki emva kokuvezwa yi-2H, kunye nobunzima be-inki emva kokubhaka i-post-6H.Ukuqina kwepensile. Thixotropic: i-inki i-gelatinous xa imile, kodwa i-viscosity iyatshintsha xa iphathwa, eyaziwa ngokuba yi-thixotropic, anti-sagging;yimpahla ebonakalayo ye-liquid, oko kukuthi, kwimeko yokuvuselela i-viscosity yayo ihla, kwaye ibuyisela ngokukhawuleza iimpawu zayo zokuqala ze-viscosity emva kokuvunyelwa ukuba zime.Ngokuvuselela, umphumo we-thixotropy uhlala ixesha elide, ngokwaneleyo ukuvuselela isakhiwo sayo sangaphakathi.Ukufezekisa iziphumo ezikumgangatho ophezulu wokushicilela isikrini, i-thixotropy ye-inki ibaluleke kakhulu.Ngokukodwa kwinkqubo ye-squeegee, inki iyaphazamiseka ukuze iyenze i-liquefied.Esi siphumo sikhawulezisa isantya se-inki esidlula kwi-mesh, kwaye sikhuthaza ukudibanisa okufanayo kwe-inki ehlulwe yi-mesh.Emva kokuba i-squeegee iyeka ukuhamba, i-inkino ibuyela kwi-static state, kwaye i-viscosity yayo ibuyela ngokukhawuleza kwidatha efunekayo yokuqala. Ifilimu eyomileyo: Ulwakhiwo lwefilimu eyomileyo:
Ifilimu eyomileyo inamacandelo amathathu kunye nezithako:
Ifilimu yenkxaso (ifilimu yepolyester, iPolyester)
Photo-resist Dry Film
Ifilimu yokugubungela (ifilimu yepolyethylene, iPolyethylene)
Izithako eziphambili
① Isibophelelo se-Binder (i-resin eyenza ifilimu),
②Ifoto-polymerization imonomer,
③Umqalisi weefoto,
④Iplastiki,
⑤Umxhasi wokubambelela,
⑥I-Thermal polymerization inhibitor,
⑦ Idayi yePigment,
⑧ isinyibilikisi
Iindidi zefilimu ezomileyo zihlulwe zibe ziindidi ezintathu ngokwendlela yokuphuhliswa kwefilimu eyomileyo kunye neendlela zokususa: ifilimu eyomileyo esekelwe kwi-solvent, ifilimu eyomileyo edibeneyo yamanzi kunye ne-peel-off dry film;ngokwenjongo yefilimu eyomileyo, yahlulahlulwe ibe: ukumelana nefilimu eyomileyo, ifilimu eyomileyo efihliweyo kunye nefilimu eyomileyo ye-Solder mask.
Isantya sovakalelo: sibhekisa kumthamo wamandla okukhanya afunekayo kwifotoresist ukwenza ipolymerize iphotoresist yenze ipolymer enokumelana okuthile nokumelana nokukhanya kweultraviolet, phantsi kwemeko yomthombo wokukhanya osisigxina kunye nomgama wesibane, Ibonakaliswa njengobude bexesha lokuvezwa, ixesha elifutshane lokuvezwa lithetha isantya esikhawulezayo sokwazisa.
Isisombululo: sibhekisa kwinani lemigca (okanye izithuba) ezinokuqulunqwa ngokumelana nefilimu eyomileyo kumgama we-1mm.Isisombululo sinokubonakaliswa ngobungakanani obupheleleyo bemigca (okanye izithuba).
Umsonto womnatha:
Ukuxinana kweNet:
Inombolo ye-T: ibhekisa kwinani leemeshi ngaphakathi kwe-1 cm ubude.
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