I-PCB iwuhlobo lwezingxenye ze-elekthronikhi, futhi iyisithwali se-PCBA yonke, ezinye izingxenye ze-elekthronikhi zifakwe ku-PCB pad, zidlala umsebenzi wazo wokuxhumana we-elekthronikhi.
Ipheshi kumele isetshenziswe PCB.PCB in the production out of the general are vacuum packaging, in theumshini wokukhetha nokubekaisichibi ngaphambi isidingo pcb baking?
Ngokuyisisekelo ukubhaka ukushisela okulandelayo kuzoba ngcono.
Kuthatha isikhathi esingakanani ukubhaka i-PCB?
Kudingeka ihlukaniswe ngokuvumelana nesikhathi sokugcina se-PCB.
Ku-PCB egcinwe izinyanga ezingu-1-2, ukubhaka cishe ihora elingu-1 ngokuvamile kwanele.
Isitoreji PCB ngaphansi kwezinyanga 6, ukubhaka jikelele mayelana 2 amahora kungaba.
Ukugcinwa kwezinyanga ezingaphezu kwezingu-6, izinyanga ezingu-12 ngaphansi kwe-pcb, ukubhaka jikelele mayelana namahora angu-4.
Isikhathi sokugcina esingaphezu kwezinyanga eziyi-12, ngokuvamile sinconywa ukuthi singasisebenzisi.
Liyini izinga lokushisa elifanele lokubhaka?
Izinga lokushisa lokubhaka ngokwesimiso ku-120 ℃, ngoba inhloso yokubhaka ukususa umswakama, inqobo nje uma izinga lokushisa lokuhwamuka kwamanzi lingaba ngaphezu kwalokho, ngokuvamile kungaba ngu-105 ℃ kuya ku-110 ℃.
Kungani ukubhaka, akukho kubhaka kuzoletha yiphi ingozi?
Kungani i-PCB ibhaka, ukususa umswakama kanye nomswakama.Ngenxa yokuthi i-PCB iyibhodi le-multilayer elihlanganiswe ndawonye, eligcinwe endaweni yemvelo kuyoba khona umhwamuko omningi wamanzi, umhwamuko wamanzi uzoxhunywa ebusweni be-pcb noma ubhoboze ngaphakathi.
Uma kungabhakwanga, umhwamuko wamanzi kureflow ovenI-soldering ukufudumala okusheshayo, umhwamuko wamanzi ufinyelela ku-100 ℃, uzokhiqiza ukugxila okuningi, uma kungafakwanga ngesikhathi, kungenzeka ukuthi i-pcb izoqhuma noma ilimaze i-circuitry yangaphakathi, okuholela ekujikelezeni okufushane noma ukusetshenziswa okwalandela kwenqubo yezinkinga ezimbi ngezikhathi ezithile.
Ukubhaka kwe-PCB kufanele kupakishwe kanjani?
Ngokuvamile mncane futhi usayizi omkhulu pcb is hhayi Kunconywa ukuba abeke mpo, ngoba kulula baking ukushisa ukunwetshwa bese ukupholisa shrinkage abandayo, okuholela micro-deformation.
Amabhodi amancane anconywa ukuthi abeke, kodwa kungcono ukuthi ungafaki kakhulu, ukugwema ukubhaka i-pcb ukubhaka umhwamuko wangaphakathi wamanzi akulula ukuhwamuka.
Amanothi ekubhakeni kwe-PCB
Ngemuva kokubhaka i-PCB, ekuhlelweni kokupholisa kufanele kubekwe lapho isisindo sokucindezela ukugwema ukuguqulwa kwe-micro-deformation.
pcb kuhhavini kufanele isethwe ngaphakathi idivayisi qeda ukuze ugweme ukuhwamuka umswakama kuhhavini ayikwazi ukushajwa.
Isikhathi sokuthumela: Aug-11-2023