Xa ibhodi PCB vacuum zipakishwe kwaye zithunyelwa emva kokuhlolwa imveliso yokugqibela, ngenxa iibhodi imiyalelo batch, abavelisi ibhodi yesekethe jikelele uya kwenza uluhlu okanye ukulungiselela iinxalenye spare ngaphezulu kubathengi, kwaye ke ukupakishwa vacuum kunye nokugcinwa emva ibhetshi nganye imiyalelo. igqityiwe.Ulinde uziso ngenqanawe.Ke kutheni iibhodi zePCB zifuna ukupakishwa kwevacuum?Indlela yokugcina emva kokupakisha i-vacuum?Bude kangakanani ubomi bayo?Ezi zilandelayo ze-Xiaobian zabavelisi bebhodi yesekethe yeXintonglian ziya kukunika intshayelelo emfutshane.
Indlela yokugcina ibhodi yePCB kunye nobomi bayo beshelufu:
Kutheni iibhodi zePCB zifuna ukupakishwa kwevacuum?Abavelisi bebhodi yePCB bancamathisela ukubaluleka okukhulu kule ngxaki.Kuba nje ukuba ibhodi yePCB ingatywinwanga kakuhle, igolide yokuntywiliselwa phezulu, isitshizi se-tin kunye neenxalenye zepad ziya kuthi zidibanise kwaye zichaphazele i-welding, engabangeli mveliso.
Ngoko ke, ukugcina njani ibhodi PCB?Ibhodi yesiphaluka ayifani nezinye iimveliso, ayikwazi ukudibana nomoya kunye namanzi.Okokuqala, ivacuum yebhodi yePCB ayinakonakaliswa.Xa upakisha, umaleko wefilimu ye-bubble kufuneka ujikelezwe kwicala lebhokisi.Ukufunxwa kwamanzi kwifilimu ye-bubble kungcono, edlala indima enhle kubungqina bomswakama.Kakade ke, amaso angangenwa kukufuma nawo ayimfuneko.Emva koko zisombulula kwaye uzileyibhelishe.Emva kokutywinwa, ibhokisi kufuneka ihlulwe eludongeni kwaye igcinwe kwindawo eyomileyo nengenamoya kude nomhlaba, kwaye kufuneka ikhuselwe ekukhanyeni kwelanga.Ubushushu bendawo yokugcina impahla bulawulwa ngcono ku-23±3℃, 55±10%RH.Phantsi kweemeko ezinjalo, iibhodi zePCB ezinonyango olungaphezulu olufana nokuntywiliselwa kwegolide, i-electro-gold, inkonkxa yokutshiza, kunye nokucwenga kwesilivere ngokubanzi zinokugcinwa kangangeenyanga ezi-6.Iibhodi ze-PCB ezinonyango olungaphezulu njengetoti yokuntywiliselwa kunye ne-OSP ngokubanzi zinokugcinwa kangangeenyanga ezi-3.
Kwiibhodi ze-PCB ezingasetyenziswanga ixesha elide, kungcono ukuba abavelisi bebhodi yesekethe bapeyinte umaleko wepeyinti yobungqina obuthathu kubo.Imisebenzi yepeyinti yobungqina obuthathu inokuthintela ukufuma, uthuli kunye ne-oxidation.Ngale ndlela, ubomi bokugcinwa kwebhodi yePCB buya kwandiswa ukuya kwiinyanga ezili-9.