Umehluko phakathi kwamabhodi wesifunda anohlangothi olulodwa kanye namabhodi wesifunda anezinhlangothi ezimbili yinani lezingqimba zethusi.Isayensi edumile: amabhodi wesifunda anezinhlangothi ezimbili anethusi ezinhlangothini zombili zebhodi lesifunda, elingaxhunywa nge-vias.Kodwa-ke, kunongqimba olulodwa kuphela lwethusi ohlangothini olulodwa, olungasetshenziselwa kuphela izifunda ezilula, futhi izimbobo ezenziwe zingasetshenziswa kuphela ekuxhumekeni kwe-plug-in.
Izidingo zobuchwepheshe zamabhodi wesifunda anezinhlangothi ezimbili ukuthi ukuminyana kwezintambo kuba kukhudlwana, indawo yokuvula incane, futhi ukuvuleka komgodi owenziwe ngensimbi kuba kuncane futhi kuncane.Ikhwalithi yezimbobo ezenziwe ngensimbi lapho ukuxhumanisa kwesendlalelo kuya kwesendlalelo kuncike ngokuqondile ekuthembekeni kwebhodi eliphrintiwe.
Ngokuncipha kosayizi wembotshana, imfucumfucu engazange ithinte ubukhulu bembotshana enkudlwana, njengemfucumfucu yebhulashi nomlotha wentaba-mlilo, uma ishiywe embotsheni encane izobangela ukuba ithusi elingenawo ugesi kanye ne-electroplating kulahlekelwe umphumela wako, futhi kuzoba nezimbobo. ngaphandle kwethusi futhi babe izimbobo.Umbulali obulalayo we-metallization.
Indlela yokushisela yebhodi lesifunda elinamahlangothi amabili
Ukuze kuqinisekiswe umphumela othembekile wokuqhuba webhodi lesifunda elinamahlangothi amabili, kunconywa ukuthi ushisele izimbobo zokuxhuma ebhodini elinamaceleni amabili ngezintambo noma okufanayo (okungukuthi, ingxenye ye- through-hole yenqubo ye-metalization), futhi unqamule ingxenye ephumayo yolayini wokuxhuma Ilimaza isandla sika-opharetha, lokhu ukulungiselela izintambo zebhodi.
Okubalulekile kwe-double side side circuit board welding:
Kumadivayisi adinga ukubunjwa, kufanele acutshungulwe ngokuhambisana nezidingo zemidwebo yenqubo;okungukuthi, kufanele zibunjwe kuqala futhi zixhumeke
Ngemuva kokubunjwa, uhlangothi lwemodeli lwe-diode kufanele lubheke phezulu, futhi akufanele kube khona ukungezwani kubude bezikhonkwane ezimbili.
Uma ufaka amadivayisi anezidingo ze-polarity, qaphela ukubumbana kwawo ukuze angahlehliswa.Ngemva kokufaka, gingqa izingxenye zebhulokhi ezihlanganisiwe, kungakhathaliseki ukuthi idivayisi eqondile noma enezingqimba, akumele kube khona ukutsheka okusobala.
Amandla ensimbi esetshenziselwa ukuhlanganisa aphakathi kuka-25 ~ 40W.Izinga lokushisa lethiphu yensimbi ehlanganisiwe kufanele lilawulwe cishe ku-242 ℃.Uma izinga lokushisa liphezulu kakhulu, ithiphu kulula "ukufa", futhi i-solder ayikwazi ukuncibilika lapho izinga lokushisa liphansi.Isikhathi sokuhlanganisa kufanele silawulwe phakathi kwamasekhondi angu-3–4.
I-welding esemthethweni ngokuvamile yenziwa ngokuvumelana nesimiso se-welding yedivayisi kusukela emfushane kuya phezulu futhi kusukela ngaphakathi nangaphandle.Isikhathi se-welding kufanele sibekwe kahle.Uma isikhathi siside kakhulu, idivayisi izoshiswa, futhi umugqa wethusi ebhodini le-copper clad nawo uzoshiswa.
Ngenxa yokuthi i-soldering ezinhlangothini ezimbili, uhlaka lwenqubo noma okufana nokubeka ibhodi lesifunda kufanele kwenziwe futhi, ukuze ungacindezeli izingxenye ezingaphansi.
Ngemuva kokuthi ibhodi lesifunda selidayisiwe, kufanele kuhlolwe ngokuphelele ukuze kutholwe lapho kungekho khona ukufakwa kanye nokunamathisela.Ngemva kokuqinisekisa, sika izikhonkwane zedivayisi ezingasasebenzi nokunye okunjalo ebhodini lesifunda, bese ugelezela enqubweni elandelayo.
Emsebenzini othize, izindinganiso zenqubo efanele kufanele futhi zilandelwe ngokuqinile ukuze kuqinisekiswe ikhwalithi yokushisela yomkhiqizo.
Ngokuthuthuka okusheshayo kobuchwepheshe obuphezulu, imikhiqizo ye-elekthronikhi ehlobene eduze nomphakathi ivuselelwa njalo.Umphakathi futhi udinga imikhiqizo ye-elekthronikhi esebenza kahle kakhulu, usayizi omncane kanye nemisebenzi eminingi, ebeka phambili izidingo ezintsha kumabhodi wesekethe.Yingakho kwazalwa ibhodi lesifunda elinezinhlangothi ezimbili.Ngenxa yokusetshenziswa okubanzi kwamabhodi wesifunda anezinhlangothi ezimbili, ukwakhiwa kwamabhodi esekethe aphrintiwe sekubuye kwaba lula, kuncane, kufushane futhi kuncane.