Kana iwe ukabvunzwa kuti bhodhi redunhu iri ruvara rwerudzii, ndinotenda kuti maitiro ekutanga emunhu wese akasvibira. Sezvinobvumwa, zvizhinji zvezvakapedzwa zvigadzirwa muPCB indasitiri zvakasvibira. Asi nekuvandudzwa kwemichina uye zvinodiwa nevatengi, mavara akasiyana-siyana akabuda. Kudzokera kune kwakabva, nei mapuranga akanyanya kusvibira? Ngatitaure nezvazvo nhasi!
Chikamu chegirini chinonzi solder block. Izvi zvinongedzo iresin uye pigment, chikamu chegirini igirini pigment, asi nekuvandudzwa kwehunyanzvi hwemazuva ano, yakatambanudzirwa kune mamwe akawanda mavara. Izvo hazvina kusiyana nepende yekushongedza. Pamberi pekutengesa kunodhindwa pabhodhi redunhu, solder resistance is paste uye kuyerera. Pashure pokudhinda pabhodhi redunhu, resin inoomesa nokuda kwokupisa uye pakupedzisira “inopora.” Chinangwa chekudzivirira welding ndechekudzivirira bhodhi redunhu kubva kune unyoro, oxidation uye guruva. Nzvimbo chete iyo isina kuvharwa ne solder block inowanzonzi pad uye inoshandiswa kune solder paste.
Kazhinji, tinosarudza girini nekuti haitsamwise maziso, uye hazvisi nyore kuti vashandi vekugadzira nekugadzirisa vatarise kuPCB kwenguva yakareba. Mukugadzira, mavara anowanzoshandiswa ndeyero, dema uye tsvuku. Iwo mavara akapendwa pamusoro pepamusoro mushure mekunge agadzirwa.
Chimwe chikonzero ndechekuti ruvara runowanzo shandiswa rwakasvibira, saka fekitori ine pendi yakasvibira yakawanda, saka mutengo wemafuta wakaderera. Izvi zvinodaro nekuti kana uchisevhisi bhodhi rePCB, wiring dzakasiyana dziri nyore kusiyanisa kubva kune chena, nepo dema nechena zvichinetsa kuona. Kuti isiyanise magiredhi ayo echigadzirwa, fekitori imwe neimwe inoshandisa mavara maviri kusiyanisa iyo yepamusoro-yekupedzisira mutsara kubva kune yakaderera-yekupedzisira mutsara. Semuyenzaniso, Asus, komputa motherboard kambani, yero bhodhi yakaderera kupera, bhodhi bhodhi rakakwirira. Yengtai's rebound ndeyepamusoro-magumo, uye bhodhi rakasvibirira rakaderera-kupera.
1. Pane zviratidzo pabhodhi redunhu: Kutanga kweR ndiko kupikisa, kutanga kweL ndiyo inductor coil (kazhinji coil inoputika yakakomberedza mhete yesimbi, imwe imba yakavharwa), kutanga kweC ndiyo capacitor (yakareba cylindrical, yakaputirwa mupurasitiki, electrolytic capacitors ine cross indentation, flat chip capacitors), mamwe makumbo maviri ari diode, makumbo matatu ari transistors, uye makumbo akawanda akabatanidzwa matunhu.
2, thyristor rectifier UR; Kudzora dunhu rine simba rekugadzirisa rectifier VC; Inverter UF; Converter UC; Inverter UI; Motor M; Asynchronous mota MA; Synchronous mota MS; Dc mota MD; Ronda-rotor induction mota MW; Squirrel keji mota MC; Magetsi valve YM; Solenoid valve YV, nezvimwewo.
3, kuverenga kwakawedzerwa kwakanamatira chikamu chedhiyagiramu pabhodhi redunhu redunhu rechikamu zita reruzivo ruzivo.
Nguva yekutumira: Kubvumbi-16-2024
