Umbuzo: Ngaba uyazi ukuba iimveliso zepcba zingagcinwa ixesha elingakanani?

Sibiza ibhodi yamacandelo ahlukeneyo adityaniswe phezu komphezulu webhodi yesekethe eprintiweyo PCBA, kunye nophuhliso lwenzululwazi kunye nobuchwepheshe, abantu baye baqala ukunikela ingqalelo ngakumbi nangakumbi ixesha ukusetyenziswa kwebhodi yesekethe PCBA kunye nokuthembeka frequency eliphezulu. ukusebenza, kwaye ke PCBA kwakhona ukunika ingqalelo ngakumbi nangakumbi kubomi bayo yokugcina. Kwiimeko eziqhelekileyo, umda wexesha lokugcinwa kwe-PCBA yi-2 ukuya kwi-10 iminyaka, kwaye namhlanje siza kuthetha ngezinto eziphembelela umjikelo wokugcinwa kweebhodi ezigqityiweyo ze-PCBA.

Izinto ezichaphazela umjikelo wokugcina PCBA ibhodi egqityiweyo

01 Okusingqongileyo

Imekobume emanzi nothuli ngokucacileyo ayikulungelanga ukugcinwa kwePCBA. Ezi zinto ziya kukhawulezisa i-oxidation kunye ne-fouling ye-PCBA kwaye inciphise ubomi beshelufu ye-PCBA. Ngokubanzi, kuyacetyiswa ukuba ugcine i-PCBA kwindawo eyomileyo, engenathuli, ubushushu obungaguqukiyo obuyi-25 ° C.

2 Ukuthembeka kwamacandelo

Ukuthembeka kwamacandelo kwi-PCBA eyahlukeneyo kwakhona kumisela ubukhulu becala ubomi bokugcinwa kwe-PCBA, ukusetyenziswa kwezinto ezikumgangatho ophezulu kunye neenkqubo zamacandelo zinamandla okuxhathisa imimandla enzima, ukukwazi ukuluhlu olubanzi, ukuxhathisa okunamandla kwe-oxidation, ekwabonelela ngesiqinisekiso. kuba uzinzo PCBA.

3. Inkqubo yonyango yezinto eziphathekayo kunye nomphezulu webhodi yesekethe eprintiweyo

Izinto zebhodi yesekethe eprintiweyo ngokwayo ayichaphazeli lula kwindalo, kodwa inkqubo yayo yonyango yomhlaba ichaphazeleka kakhulu yi-oxidation yomoya. Unyango olulungileyo lomphezulu lunokwandisa ubomi beshelufu ye-PCBA.

4 PCBA esebenzayo umthwalo

Umthwalo we-PCBA yeyona nto ibalulekileyo ebomini bayo. I-frequency ephezulu kunye nokusebenza komthwalo ophezulu kuya kuba nefuthe eliqhubekayo eliphezulu kwimigca yebhodi yesekethe kunye namacandelo, kwaye kulula i-oxidize phantsi kweempembelelo zokufudumeza, okubangelwa isiphaluka esifutshane kunye nesiphaluka esivulekileyo ngexesha lokusebenza kwexesha elide. Ngoko ke, iiparamitha zokusebenza zebhodi ye-PCBA kufuneka zibe kuluhlu oluphakathi lwecandelo ukuphepha ukusondela kwixabiso eliphezulu, ukwenzela ukukhusela ngokufanelekileyo i-PCBA kunye nokwandisa ubomi bayo bokugcina.