Isizathu se PCB ukubeka:

(1) Izinto eziphathekayo okanye inkqubo yenkqubo

(2) Ukukhetha izinto ezingalunganga kunye nokusasazwa komphezulu wobhedu

(3) Ixesha lokugcina lide kakhulu, lidlula ixesha lokugcina, kwaye ibhodi ye-PCB ichaphazeleka ukufuma

(4) Ukupakisha okungalunganga okanye ukugcinwa, ukufuma

Izinto zokulwa:

Khetha ukupakisha okuhle, sebenzisa ubushushu obuqhelekileyo kunye nezixhobo zokugcina ukufuma. Umzekelo, kuvavanyo lokuthembeka lwe-PCB, umthengisi ophethe uvavanyo loxinzelelo lwe-thermal uthatha ngaphezulu kwamaxesha ama-5 okungahlanjululwa njengomgangatho kwaye uya kuqinisekisa kwinqanaba lesampula nakuwo wonke umjikelo wemveliso yobuninzi, ngelixa umenzi ngokubanzi enokuthi ifuna amaxesha ama-2 kwaye uyiqinisekise kube kanye kwiinyanga ezimbalwa. Uvavanyo lwe-IR lokunyusa okulingisiweyo lunokuthintela ukuphuma kweemveliso ezineziphene, eziyimfuneko kwimizi-mveliso yePCB ebalaseleyo. Ukongeza, i-TG yebhodi ye-PCB kufuneka ibe ngaphezulu kwe-145 ℃, ukuze ikhuseleke noko.

Uluhlu lwebhodi ye-PCB

Ngaphantsi kokukhanya kwe-ultraviolet, i-photoinitiator efunxa amandla okukhanya iyabola ibe yi-radical simahla ukuqala i-monomer kwi-photopolymerization reaction, yenze i-molecule yomzimba enganyibiliki kwisisombululo se-alkali. Xa ukuvezwa kungonelanga, ngenxa yokungagqitywa kwepolymer, kwinkqubo ekhulayo, ukudumba kwefilimu kuye kuthambe, kukhokelele kwimigca engacacanga kwaye nomaleko wefilimu uyawa, ukhokelela kwindibaniselwano engeyiyo yefilimu kunye nobhedu; Ukuba ukubhengeza kugqithisile, kuya kubangela ubunzima ekuphuhliseni, kwaye kuya kuvelisa ukujija kunye nokuhluba kwinkqubo yokulingisa, ukwenza ukungena ngaphakathi. Ke kubalulekile ukulawula amandla ombane; Umphezulu wobhedu emva kokulungiswa, ixesha lokucoca akukho lula ukuba lide kakhulu, kuba amanzi okucoca nawo aqukethe izinto ezithile ezine-asidi nangona umxholo wawo ubuthathaka, kodwa ifuthe lobhedu alunakuthathwa kancinci, kufuneka lube ngqongqo ngokungqinelana nenkqubo yokubalula yexesha lokucoca imisebenzi.

Esona sizathu siphambili sokuba umaleko wegolide uwe kumphezulu wenqwelwana ye-nickel lonyango lonyango lwe-nickel. Umsebenzi womhlaba wentsimbi ye-nickel uhlwempuzekile kwaye kunzima ukufumana iziphumo ezonelisayo. Umnatha wokwaleka komhlaba we-nickel uthambekele ekuveliseni ifilimu yokuhamba emoyeni, ukuba ayinyangwa kakuhle, umaleko wegolide uya kwahlulwa kubuso bendawo yomaleko. Njengokulungiswa okungalunganga kwisingxobo segolide sombane, umaleko wegolide uya kufakwa kubuso be-nickel peeling. Isizathu sesibini kukuba emva kokuvula, ixesha lokucoca lide kakhulu, elikhokelela ekwenziweni komaleko wefilimu kumphandle wenickel, emva koko uye kwisingxobo segolide, ngokuqinisekileyo siya kuvelisa iziphene zokuphalaza ukutyabeka.

Unobangela wokubeka kwebhodi yePCB

Isizathu:

Iibhodi zesekethe ze-PCB emva kokufunxa ubushushu, zivelise ukungalingani kokunatyiswa okungafaniyo phakathi kwezinto ezahlukeneyo kwaye zibumbe uxinzelelo lwangaphakathi, ukuba i-resin ene-resin, i-resin kunye ne-copper foil stick relay ayonelanga ukumelana noxinzelelo lwangaphakathi oluya kuvelisa i-delamination, esi sisizathu esingunobangela Iibhodi zeesekethe ze-PCB zihamba kakuhle, kwaye i-resonant, ubushushu bendibano kunye nolwandiso lwexesha, kunokwenzeka ukuba zibangele iibhodi zesekethe ze-PCB.

Izinto zokulwa:

1, ukukhethwa kwezinto ezisisiseko ukuba ukhethe kangangoko kunokwenzeka ukuqinisekisa ukuthembeka kwezinto ezifanelekileyo, umgangatho wezinto ze-PP kwibhodi ye-multilayer nayo yiparameter ephambili.

2, inkqubo lamination yolawulo endaweni, ingakumbi ukuba maleko yangaphakathi ashinyeneyo ngefoyile ye multilayer, kufuneka sinikele ingqalelo. Phantsi ukothuka thermal, PCB ibhodi umaleko wabonakala umaleko engaphakathi ibhodi multilayer, okubangela yonke ibhetshi ezilahliweyo.

3, umgangatho wobhedu obunzima. Ubungakanani bokuxinana komaleko wobhedu eludongeni lwangaphakathi lomngxunya, ukujiya komaleko wobhedu, kokukhona kusomelela ukothuka kobushushu bebhodi yesekethe ye-PCB. Zombini ibhodi yesekethe ye-PCB yokuthembeka okuphezulu, iindleko zemveliso kunye neemfuno eziphantsi, inkqubo yolawulo lwe-electroplating inyathelo ngalinye lifuna ukulawulwa kakuhle.

Xa ibhodi PCB ukwinkqubo lobushushu eliphezulu, ngefoyile ye yobhedu emngxunyeni yaphukile ngenxa ukwanda ngokugqithiseleyo ibhodi. Nguwo umngxunya lowo. Le ikwangumanduleli wobuhlalu, obubonakaliswa xa inqanaba lisonyuka.

Abavelisi bebhodi yesekethe yePCB abaneemeko baneelebhu zabo zokuvavanya, ezinokuthi ziqwalasele ukusebenza kwebhodi yesekethe yePCB yomothuko wobushushu ngexesha lokwenyani.