Ngokuminyana okuphezulu kwemikhiqizo ye-elekthronikhi nokukhiqizwa kwe-elekthronikhi okungenakho ukuhola, izinga lobuchwepheshe nezidingo zekhwalithi ze-PCB kanye PCBA imikhiqizo nayo ibhekene nezinselelo ezinzima. Enqubeni yokuklanywa kwe-PCB, ukukhiqizwa, ukucubungulwa nokuhlangana, inqubo eqinile nokulawulwa kwempahla eluhlaza kuyadingeka. Ngenxa amasu nobuchwepheshe namanje esikhathini ushintsho okwamanje, ukuqonda ikhasimende PCB futhi inhlangano inqubo has umehluko ezinkudlwana, ngakho efana ukuvuza, futhi wesifunda evulekile (umugqa, imbobo), Welding, ezifana ipuleti ukuqhumisa ukwehluleka okuyimikhakha kaningi kwenzeka, kuvame ukudala umthwalo wekhwalithi wengxabano phakathi kwabaphakeli nabasebenzisi, lokhu kuholele ekulahlekelweni okukhulu kwezomnotho. Ngokuhlaziywa kokuhluleka kwe-PCB ne-PCBA ukwehluleka komkhuba, ngochungechunge lokuhlaziywa nokuqinisekiswa, thola imbangela yokwehluleka, hlola indlela yokwehluleka, ukuthuthukisa ikhwalithi yomkhiqizo, ukuthuthukisa inqubo yokukhiqiza, ingozi yokwehluleka kokulamula kubaluleke kakhulu.

Ukuhluleka kokuhlaziywa kwe-PCB kunga:

1. Siza abakhiqizi ukuthi baqonde isimo sekhwalithi yomkhiqizo, bahlaziye futhi bahlole isimo senqubo, balungiselele futhi bathuthukise ucwaningo lomkhiqizo nezinhlelo zokuthuthukisa nezinqubo zokukhiqiza;

2. Khomba imbangela eyinhloko yokwehluleka emhlanganweni we-elekthronikhi, uhlinzeke ngohlelo olusebenzayo lokuthuthukisa inqubo yenhlangano, futhi wehlise izindleko zokukhiqiza;

3. Ukwenza ngcono isilinganiso esifanelekile nokuthembeka kwemikhiqizo, ukunciphisa izindleko zesondlo, nokuthuthukisa ukuncintisana komkhiqizo webhizinisi;

4. Cacisa iqembu elibhekele iqhaza elibangela ukwehluleka komkhiqizo ukuhlinzeka ngesisekelo sokulamula kwezomthetho.

Kuyini ukuhlaziywa kwe-PCB ukwehluleka

Ukuhluleka kokuhlaziywa kwe-PCB kwezinqubo eziyisisekelo

Ukuthola imbangela ngqo noma indlela yokuhluleka kwe-PCB noma ukukhubazeka, kufanele kulandelwe imigomo eyisisekelo nezinqubo zokuhlaziya, kungenjalo imininingwane ebalulekile yokwehluleka ingaphuthelwa, okuholele ekwehlulekeni kokuhlaziywa noma kube iziphetho ezingalungile. Inqubo ejwayelekile eyisisekelo ukuthi, ngokuya ngesimo sokwehluleka, indawo yokwehluleka nemodi yokwehluleka kufanele kunqunywe ngokuqoqwa kolwazi, ukuhlolwa kokusebenza, ukuhlolwa kokusebenza kagesi nokuhlolwa kokubukeka okulula, okungukuthi, indawo yokwehluleka noma indawo enamaphutha.

Nge-PCB elula noma i-PCBA, indawo yokwehluleka kulula ukuyicacisa, kepha kuma-BGA noma i-MCM epakishwe kakhulu amadivayisi noma ama-substrates, ukukhubazeka akulula ukukubona ngesibonakhulu, okungelula ukunquma ngaleso sikhathi, ngalesi sikhathi kudingeka sebenzisa ezinye izindlela ukunquma.

Ngemuva kwalokho kuyadingeka ukuthi uhlaziye indlela yokwehluleka, okusho ukuthi, sebenzisa izindlela ezahlukahlukene zomzimba nezamakhemikhali ukuhlaziya indlela eholela ekuhlulekeni kwe-PCB noma ukukhubazeka, njengokushisela okubonakalayo, ukungcola, ukulimala kwemishini, ukucindezeleka okumanzi, ukugqwala okuphakathi, ukulimala kokukhathala, i-CAF noma ukufuduka kwe-ion, ukucindezela ngokweqile, njll.

Okunye ukwehluleka kwembangela yokuhlaziya, okusho ukuthi, okususelwa kunqubo yokwehluleka nokuhlaziywa kwenqubo, ukuthola imbangela yendlela yokwehluleka, uma kunesidingo, ukuqinisekiswa kokuhlolwa, ngokuvamile ngangokunokwenzeka kokuhlolwa kokuhlolwa, ngokuqinisekiswa kokuhlolwa kungathola imbangela ngqo yokwehluleka okubangelwa .

Lokhu kunikeza isisekelo esihlosiwe sokwenza ngcono okulandelayo. Ekugcineni, umbiko wokuhlaziya ukwehluleka ulungiswa ngokuya ngemininingwane yokuhlola, amaqiniso neziphetho ezitholwe kwinqubo yokuhlaziya. Amaqiniso ombiko kudingeka ukuthi acace, ukubonisana okunengqondo kuqinile, futhi umbiko uhleleke kahle.

Enkambeni yokuhlaziywa, kufanele kunakwe ekusetshenzisweni kwezindlela zokuhlaziya kusuka kokulula kuye kokuyinkimbinkimbi, kusuka ngaphandle kuya ngaphakathi, ungalokothi uchithe isampula bese kumgomo oyisisekelo wokusebenzisa ukubhujiswa. Kungale ndlela kuphela lapho singagwemeka khona ukulahleka kolwazi olubucayi nokwethulwa kwezinqubo ezintsha zokuhluleka okokufakelwa.

Njengengozi yomgwaqo, uma iqembu elilodwa lalengozi libhubhisa noma libalekela indawo, kunzima ngamaphoyisa aseGaomin ukwenza imininingwane efanelekile yemithetho, ngakho-ke imithetho nemigwaqo yomgwaqo ngokuvamile ifuna lowo obaleke endaweni yesehlakalo noma obhubhise yesehlakalo ukuze uthathe umthwalo ophelele.

Ukuhlaziywa kokuhluleka kwe-PCB noma kwe-PCBA kuyafana. Uma amalunga we-solder ahlulekile elungiswa ngensimbi kagesi yokunamathisela ngomunwe noma i-PCB isikwe ngokuqinile ngesikele esikhulu, lapho-ke ukuhlaziywa kabusha kuzobe kungenakwenzeka ukuqala. Isayithi lokwehluleka lichithakele. Ikakhulukazi esimweni senani elincane lamasampuli ahlulekile, lapho imvelo yesiza lokwehluleka ichithwa noma yonakaliswa, imbangela yangempela yokwehluleka ayikwazi ukutholakala.