Ubomi beshelufa yePCB?Ixesha lokubhaka kunye nobushushu?
Ixesha lokugcina le-PCB, kunye nobushushu kunye nexesha lokusebenzisa i-oven yoshishino ukubhaka i-PCB zonke zilawulwa lushishino. Buthini ubomi beshelufu yePCB?Kwaye indlela yokumisela ixesha lokubhaka kunye nobushushu? 1. Inkcazo yolawulo lwePCB 1. PCB ukukhulula kunye nokugcinwa (1) I ibhodi PCB inokusetyenziswa ngokuthe ngqo kwi-intanethi phakathi kweenyanga ezi-2 zomhla wokwenziwa kwebhodi yePCB etywiniweyo nengavulwanga (2) Umhla wokwenziwa kwebhodi yePCB ungaphakathi kweenyanga ezi-2, kwaye umhla wokukhutshwa kufuneka uphawulwe emva kokukhulula. (3) Umhla wokwenziwa kwebhodi yePCB ungaphakathi kweenyanga ezi-2, emva kokukhulula, kufuneka ube kwi-intanethi kwaye usetyenziswe kwiintsuku ezi-5. 2. PCB yokubhaka (1) Ukuba i-PCB itywiniwe kwaye ingapakishwa ngaphezu kweentsuku ezi-5 phakathi kweenyanga ezi-2 zomhla wokwenziwa, nceda ubhake kwi-120±5℃ ngeyure enye. (2) Ukuba iPCB ingaphezulu kweenyanga ezi-2 ukusuka kumhla wokwenziwa, nceda uyibhake kwi-120±5℃ ngeyure enye ngaphambi kokungena kwi-Intanethi. (3) Ukuba i-PCB ineenyanga ezi-2 ukuya kwezi-6 ezidlulileyo kumhla wokwenziwa, nceda uyibhake kwi-120±5℃ iiyure ezi-2 ngaphambi kokuba ungene kwi-intanethi. (4) Ukuba i-PCB ineenyanga ezi-6 ukuya kunyaka o-1 ubudala kunomhla wokwenziwa, nceda ubhake kwi-120±5 ° C kwiiyure ze-4 ngaphambi kokungena kwi-intanethi. (5) I-PCB ebhakiweyo mayisetyenziswe zonke kwiintsuku ezi-5 (ifakwe kwi-IR REFLOW), kwaye i-PCB mayibhakwe enye iyure phambi kokuba isetyenziswe kwi-intanethi. (6) Ukuba iPCB ingaphezulu konyaka omnye ukususela kumhla wokwenziwa kwayo, nceda uyibhake kwi-120±5℃ iiyure ezi-4 phambi kokungena kwi-intanethi, uze uyithumele kumzi-mveliso we-PCB ukuze iphinde itshizwe ngetoti phambi kokungena kwi-intanethi. 3. PCB indlela yokubhaka (1) IiPCB ezinkulu (i-16 PORTs nangaphezulu, kuquka i-16 PORTs) zibekwe ngokuthe tye, kunye nobuninzi beenqununu ze-30 kwi-stack.Vula i-oven phakathi kwemizuzu eyi-10 emva kokuba ukubhaka kugqityiwe, khupha i-PCB, kwaye uyibeke caba ukupholisa kwendalo (kufuneka ucinezele i-anti-plate bay fixture) (2) IiPCB ezincinci kunye neziphakathi (kubandakanywa ne-8PORTs ngaphantsi kwe-8PORT) zibekwe ngokuthe tye.Inani eliphezulu le-stack ngamaqhekeza angama-40.Inani lohlobo oluthe nkqo alinamda.Vula i-oven kwaye ukhuphe i-PCB ngaphakathi kwemizuzu eyi-10 emva kokuba ukubhaka kugqityiwe.Umdlalo weBanwan) 2. Ukugcinwa kunye nokubhaka iiPCBs kwimimandla eyahlukeneyo Ixesha elithile lokugcinwa kunye nobushushu bokubhaka be-PCB aluhlobene kuphela nomthamo wemveliso kunye nenkqubo yokuvelisa yomenzi we-PCB, kodwa banobudlelwane obukhulu kunye nommandla. I-PCB eyenziwe yinkqubo ye-OSP kunye nenkqubo yokuntywiliselwa kwegolide esulungekileyo ngokubanzi inobomi beshelufu yeenyanga ezi-6 emva kokupakishwa, kwaye ayikhuthazwa ngokubanzi ukuba ibhakele inkqubo ye-OSP. Ukugcinwa kunye nexesha lokubhaka lePCB linento eninzi yokwenza nommandla.Emazantsi, ukufuma kudla ngokuba nzima ngakumbi, ngakumbi eGuangdong naseGuangxi.NgoMatshi nangoAprili wonyaka ngamnye, kuya kubakho imozulu “ebuyela emazantsi,” yaye kunetha yonke imihla.Ngokuqhubekayo, kwakufumeme kakhulu ngeli xesha.I-PCB evezwe emoyeni kufuneka isetyenziswe ngaphakathi kweeyure ezingama-24, ngaphandle koko kulula ukuyi-oxidize.Emva kokuvulwa okuqhelekileyo, kungcono ukuyisebenzisa kwiiyure ezisi-8.Kwezinye iiPCB ezifuna ukubhakwa, ixesha lokubhaka liya kuba lide.Kwimimandla esenyakatho, imozulu yomile ngokubanzi, ixesha lokugcina iPCB liya kuba lide, kwaye ixesha lokubhaka linokuba lifutshane.Ubushushu bokubhaka ngokuqhelekileyo yi-120 ± 5℃, kwaye ixesha lokubhaka limiselwa ngokwemeko ethile. Ixesha lokugcinwa kwe-PCB, ixesha lokubhaka kunye nobushushu, iingxaki ezithile kufuneka zihlalutywe ngokweenkcukacha, kwaye ukhetho oluthile kufuneka lwenziwe ngesiseko solawulo lwe-PCB kunye neenkcukacha zolawulo, ngokuhambelana nomthamo wemveliso, inkqubo, ummandla kunye nexesha labenzi abahlukeneyo. . 
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