Chifukwa cha PCB kuyika:

(1) Katundu katundu kapena ndondomeko ndondomeko

(2) Kusankha bwino kwa zinthu zakuthupi ndi kugawa mkuwa pamwamba

(3) Nthawi yosungirako ndiyitali kwambiri, kupitilira nthawi yosungira, ndipo bolodi la PCB limakhudzidwa ndi chinyezi

(4) Kuyika kapena kusungira kolakwika, chinyezi

Zotsutsana:

Sankhani ma phukusi abwino, gwiritsani ntchito zida zosungira nthawi zonse komanso zotentha. Mwachitsanzo, pakuyesa kwa kudalirika kwa PCB, wogulitsa yemwe amayesa mayeso a matenthedwe amatenga nthawi zopitilira 5 zosasunthika monga muyezo ndipo adzawatsimikizira munthawi yoyeserera komanso nthawi iliyonse yopanga misa, pomwe wopanga akhoza amafuna nthawi 2 ndikutsimikizira kamodzi miyezi ingapo. Kuyesa kwa IR kwakukhazikitsa koyesanso kumalepheretsanso kutuluka kwa zinthu zosalongosoka, zomwe ndizofunikira kumafakitale abwino kwambiri a PCB. Kuphatikiza apo, THE Tg wa board wa PCB akuyenera kukhala pamwamba pa 145 ℃, kuti akhale otetezeka.

PCB bolodi plating wosanjikiza

Pansi pa kuwala kwa ultraviolet, chithunzi chojambulira chomwe chimayatsa mphamvu zowunikirazo chimasandulika kukhala chowongolera mwaulere kuyambitsa monomer ku photopolymerization reaction, ndikupanga molekyulu ya thupi yosasungunuka mu njira yothetsera alkali. Kuwonetseraku sikukwanira, chifukwa chosakwanira polima, pakukula, kufufuma kwamafilimu kumakhala kofewa, komwe kumapangitsa kuti mizere isamveke bwino komanso gawo lamafilimu limagwa, zomwe zimapangitsa kuti filimu ndi mkuwa zisasakanike bwino; Ngati kuwonetseraku kwachulukirachulukira, kumadzetsa zovuta kukulira, ndipo kumatulutsanso zoluka ndikumavula, ndikulowetsa. Choncho ndikofunika kulamulira kukhudzana mphamvu; Pamwamba pamkuwa mukakonza, nthawi yoyeretsa sikophweka kuti ikhale yayitali kwambiri, chifukwa madzi oyeretsa amakhalanso ndi zinthu zina zowoneka bwino ngakhale zili zochepa, koma zomwe zimakhudza mkuwa sizingatengeke mopepuka, ziyenera kukhala zolimba malinga ndi ndondomekoyi malinga ndi nthawi yoyeretsa.

Chifukwa chachikulu chomwe wosanjikiza golide amagwera kuchokera pamwamba pa faifi tambala ndikuthandizira pamwamba pa faifi tambala. Zochita zapamwamba za chitsulo chachitsulo ndizosauka ndipo ndizovuta kupeza zotsatira zokhutiritsa. Kutsekemera kwa faifi tambala kumatha kutulutsa kanema wautali m’mlengalenga, ngati suchiritsidwa bwino, wosanjikiza wagolide adzalekanitsidwa ndi malo osanjikiza a faifi tambala. Monga kutsegula kosayenera pamagetsi amagetsi agolide, wosanjikiza wagolidi sadzachotsedwa pamwamba pa khungu losanjikizika. Chifukwa chachiwiri ndikuti pambuyo poyambitsa, nthawi yoyeretsa ndi yayitali kwambiri, zomwe zimapangitsa kuti pakapangidwe ka kanema wosanjikiza pamtunda, ndikupita kukayala golide, mosalephera kutulutsa zolakwika zokutira.

Chifukwa chokhazikitsira bolodi la PCB

Chifukwa chake:

Ma board a dera la PCB atatenthetsa kutentha, amatulutsa coefficient yowonjezera yowonjezera pakati pazinthu zosiyanasiyana ndikupanga kupsinjika kwamkati, ngati utomoni wokhala ndi utomoni, utomoni ndi ndodo yolumikizira mkuwa sikokwanira kuthana ndi kupsinjika kwamkati kutulutsa delamination, ichi ndiye chomwe chimayambitsa Ma board a dera la PCB ndi osanjikiza, komanso kutentha kwake, kutentha kwa msonkhano ndi kukulitsa nthawi, kumatha kuyambitsa matabwa a PCB madera.

Zotsutsana:

1, kusankha kwa zinthu zoyambira kuti zisankhe momwe zingathere kuti zitsimikizire kudalirika kwa zida zoyenera, mtundu wa zinthu za PP za bolodi la multilayer ndichinthu chofunikira kwambiri.

2, kuyimitsa kayendedwe ka lamination m’malo mwake, makamaka pakatikati pamtambo wonyezimira wamkuwa, ayenera kumvetsera. Pansi potenthedwa ndi matenthedwe, bolodi la PCB board lidawonekera mkati mwa bolodi la multilayer, zomwe zidapangitsa kuti zidutswa zonse.

3, kulemera kwamkuwa kwambiri. Kukula kwa kachulukidwe ka mkuwa wamkati mkatikati mwa dzenje, ndikulimba kwamkuwa wosanjikiza, ndikulimba kwamphamvu kwa bolodi la PCB. Onse PCB bolodi dera yodalirika, mtengo kupanga ndi zofunika otsika, electroplating ndondomeko kulamulira sitepe iliyonse amafuna ulamuliro wabwino.

Pamene bolodi PCB ali m’kati kutentha, zojambulazo mkuwa mu dzenje wasweka chifukwa cha kukula kwambiri kwa bolodi. Limenelo ndi dzenje. Izi ndizomwe zimayambitsanso stratification, zomwe zimawonetsedwa pomwe digiri imakulirakulira.

Opanga ma board a PCB okhala ndi mikhalidwe ali ndi labotale yoyesa, yomwe imatha kuwona magwiridwe antchito awo a PCB modzidzimutsa munthawi yeniyeni.