Izinyathelo Zokukhiqiza Izinto zikagesi ze-PCBA Circuit Board

PCBA

Masiqonde inqubo yokukhiqiza i-electronics ye-PCBA ngemininingwane:

● I-Solder Namathisela Istencing

Okokuqala nokubalulekile, theInkampani ye-PCBAifaka i-solder paste ebhodini lesifunda eliphrintiwe.Kule nqubo, udinga ukubeka unamathisele we-solder ezingxenyeni ezithile zebhodi.Le ngxenye iphethe izingxenye ezahlukene.

I-solder paste iyinhlanganisela yamabhola ensimbi amancane ahlukene.Futhi, into esetshenziswa kakhulu ku-solder unama ithini okungukuthi 96.5%.Ezinye izinto ze-solder paste ziyisiliva nethusi elinenani elingu-3% no-0.5% ngokulandelana.

Umkhiqizi uhlanganisa unamathisele ne-flux.Ngoba i-flux iyikhemikhali esiza i-solder ekuncibilikeni nasekuxhumeni phezulu kwebhodi.Kufanele ufake i-solder paste ezindaweni eziqondile futhi ngamanani afanele.Umkhiqizi usebenzisa izifaki-sicelo ezihlukene ukuze asakaze unamathisele ezindaweni ezihlosiwe.

●Khetha nendawo

Ngemuva kokuphothula ngempumelelo isinyathelo sokuqala, umshini wokukhetha nendawo kufanele wenze umsebenzi olandelayo.Kule nqubo, abakhiqizi babeka izingxenye ze-elekthronikhi ezahlukene kanye nama-SMD ebhodini lesifunda.Namuhla, ama-SMD aziphendulela ngezingxenye ezingaxhumi zamabhodi.Uzofunda ukuthi ungathengisa kanjani lawa ma-SMD ebhodini ezinyathelweni ezizayo.

Ungasebenzisa noma izindlela zendabuko noma ezizenzakalelayo ukuze ukhethe futhi ubeke izingxenye ze-elekthronikhi emabhodini.Ngendlela yendabuko, abakhiqizi basebenzisa ama-tweezers ukubeka izingxenye ebhodini.Ngokuphambene nalokhu, imishini ibeka izingxenye endaweni efanele ngendlela ezenzakalelayo.

●Reflow Soldering

Ngemva kokubeka izingxenye endaweni yazo efanele, abakhiqizi baqinisa ukunamathisela kwe-solder.Bangakwazi ukufeza lo msebenzi ngokusebenzisa inqubo "yokugeleza kabusha".Kule nqubo, ithimba elikhiqizayo lithumela amabhodi ebhandeni lokuthutha.

ithimba lokukhiqiza lithumela amabhodi ebhandeni lokuthutha.

Ibhande lokuthutha kufanele lidlule kuhhavini elikhulu lokugeleza kabusha.Futhi, i-oven yokugeleza icishe ifane nehhavini le-pizza.Ihhavini iqukethe ama-heaters ambalwa anamazinga okushisa ahlukene.Ngemuva kwalokho, ama-heaters ashisisa amabhodi emazingeni okushisa ahlukene afike ku-250℃-270℃.Lokhu kushisa kuguqula i-solder ibe unamathisele we-solder.

Ngokufanayo nezifudumezi, ibhande lokudlulisa libe selidlula ochungechungeni lwama-coolers.Ama-coolers aqinisa unamathisele ngendlela elawulwayo.Ngemuva kwale nqubo, zonke izingxenye ze-elekthronikhi zihlala ebhodini ngokuqinile.

●Ukuhlola Nokulawula Ikhwalithi

Phakathi nenqubo yokugeleza kabusha, amanye amabhodi angase afike nokuxhumeka okubuthakathaka noma abe mafushane.Ngamazwi alula, kungase kwenzeke izinkinga zokuxhuma ngesikhathi sesinyathelo sangaphambilini.

Ngakho-ke kunezindlela ezihlukene zokuhlola ibhodi lesifunda ukungaboni ngaso linye namaphutha.Nazi ezinye izindlela ezimangalisayo zokuhlola:

● Hlola mathupha

Nasenkathini yokukhiqiza nokuhlola okuzenzakalelayo, ukuhlola okwenziwa ngesandla kusenokubaluleka okubalulekile.Nokho, ukuhlola okwenziwa ngesandla kuphumelela kakhulu esikalini esincane se-PCB PCBA.Ngakho-ke, le ndlela yokuhlola iba yiphutha futhi ingasebenzi ebhodini lesekethe le-PCBA elikhulu.

Ngaphandle kwalokho, ukubuka izingxenye zezimayini isikhathi eside kuyacasula nokukhathala okubonakalayo.Ngakho kungaholela ekuhlolweni okungalungile.

● Ukuhlola Okuzenzakalelayo Okuzenzakalelayo

Ngenqwaba ye-PCB PCBA, le ndlela ingenye yezinketho ezinhle kakhulu zokuhlola.Ngale ndlela, Umshini we-AOI uhlola ama-PCB usebenzisa inqwaba yamakhamera anamandla amakhulu.

Lawa makhamera amboza wonke ama-engeli ukuze ahlole ukuxhumana kwe-solder okuhlukile.Imishini ye-AOI ibona amandla okuxhumana ngokukhanya okubonisayo okuvela ekuxhumekeni kwe-solder.Imishini ye-AOI ingahlola amakhulukhulu amabhodi emahoreni ambalwa.

● Ukuhlolwa kwe-X-Ray

Kungenye indlela yokuhlola ibhodi.Le ndlela ayivamile kakhulu kodwa iphumelela kakhulu kumabhodi esifunda ayinkimbinkimbi noma anezingqimba.I-X-ray isiza abakhiqizi ukuthi bahlole izinkinga zongqimba oluphansi.

Lisebenzisa izindlela ezishiwo ngenhla, uma inkinga ikhona, ithimba elikhiqizayo lingabuyisela lokho ukuze kusetshenzwe kabusha noma kuchithwe.

Uma ukuhlola kungatholi phutha, isinyathelo esilandelayo ukuhlola ukusebenza kwayo.Kusho ukuthi abahloli bazohlola ukuthi ukusebenza kwayo kuhambisana nezidingo noma cha.Ngakho ibhodi lingase lidinge ukulinganisa ukuze lihlole ukusebenza kwalo.

●Ukufakwa Kwengxenye Yezimbobo

Izingxenye ze-elekthronikhi ziyahlukahluka ebhodini ukuya kwelinye kuncike ohlotsheni lwe-PCBA.Isibonelo, amabhodi angase abe nezinhlobo ezahlukene zezingxenye ze-PTH.

Izimbobo ezipthiwe ziyizinhlobo ezahlukene zembobo kumabhodi esekethe.Ngokusebenzisa lezi zimbobo, izingxenye ezisemabhodini esekethe zidlulisela isignali kuye noma zisuka ezingqimbeni ezihlukene.Izingxenye ze-PTH zidinga izinhlobo ezikhethekile zezindlela zokunamathisela esikhundleni sokusebenzisa unamathisele kuphela.

●Ukusoda Ngezandla

Le nqubo ilula kakhulu futhi iqondile.Esiteshini esisodwa, umuntu oyedwa angafaka kalula ingxenye eyodwa ku-PTH efanele.Ngemva kwalokho, umuntu uzodlulisela lelo bhodi esiteshini esilandelayo.Kuzoba neziteshi eziningi.Esiteshini ngasinye, umuntu uzofaka ingxenye entsha.

Umjikelezo uyaqhubeka kuze kufakwe zonke izingxenye.Ngakho le nqubo ingaba yinde ngokuya ngenani lezingxenye ze-PTH.

●I-Wave Soldering

Kuyindlela ezenzakalelayo ye-soldering.Kodwa-ke, inqubo ye-soldering ihluke ngokuphelele kule nqubo.Ngale ndlela, amabhodi adlula kuhhavini ngemva kokufaka ibhande lokuthutha.Ihhavini iqukethe i-solder encibilikisiwe.Futhi, i-solder encibilikisiwe iwasha ibhodi lesifunda.Kodwa-ke, lolu hlobo lwe-solder cishe alukwazi ukwenzeka kumabhodi wesifunda anezinhlangothi ezimbili.

●Ukuhlola Nokuhlola Okokugcina

Ngemva kokuphothulwa kwenqubo yokuhlanganisa, ama-PCBA adlula ekuhlolweni kokugcina.Kunoma yisiphi isigaba, abakhiqizi bangadlula amabhodi wesifunda kusukela ezinyathelweni zangaphambili zokufakwa kwezingxenye ezengeziwe.

Ukuhlola okusebenzayo yigama elivame ukusetshenziswa kakhulu ekuhloleni kokugcina.Kulesi sinyathelo, abahloli babeka amabhodi esekethe ngokuhamba kwawo.Ngaphandle kwalokho, abahloli bahlola amabhodi ngaphansi kwezimo ezifanayo lapho isekethe izosebenza khona.


Isikhathi sokuthumela: Jul-14-2020