1. Yeuchidza munhu wese kuti atarise chitarisiko chekutanga mushure mekutora PCB isina bhodhi kuti aone kana paine pfupi dunhu, dunhu rekuzorora uye mamwe matambudziko.Wobva wajairira dhiyabhorosi dhiyabhorosi dhiyagiramu, uye enzanisa dhiyabhorosi nePCB skrini yekudhinda layer kuti udzivise mutsauko pakati peiyo schematic dhizaini nePCB.
2. Mushure mezvinhu zvinodiwareflow ovenvakagadzirira, zvikamu zvinofanira kuiswa.Zvese zvikamu zvinogona kukamurwa muzvikamu zvakati wandei zvichienderana nehukuru hwazvo kuitira kurerukira kunotevera welding.Ndaza yezvinyorwa yakakwana inoda kudhindwa.Mukuita welding, kana pasina welding inopedzwa, yambuka sarudzo dzinoenderana nepeni, kuitira kuti ufambise unotevera welding oparesheni.
3. Pamberireflow soldering muchina, tora matanho esd, akadai sekupfeka mhete ye esd, kudzivirira kukanganisa kwe electrostatic kune zvikamu.Mushure mekunge midziyo yese yekugezesa yagadzirwa, ita shuwa kuti musoro wesimbi wakachena uye wakachena.Inokurudzirwa kusarudza flat Angle soldering iron yekutanga welding.Kana welding yakavharirwa zvinhu zvakaita semhando ye0603, iyo solder iron inogona kubata zvirinani kune welding pad, iyo yakanakira welding.Zvechokwadi, kuna tenzi, iyi haisi dambudziko.
4. Paunenge uchisarudza zvikamu zvekushongedza, weld ivo muhurongwa kubva pasi kusvika kumusoro uye kubva kudiki kusvika kuhombe.Kuti udzivise kusagadzikana kwewelding ye welded yakakura zvikamu kune zvidiki zvikamu.Preferentially weld integrated circuit machipisi.
5. Usati welding yakabatanidzwa yedunhu machipisi, ita shuwa kuti machipisi akaiswa munzira kwayo.Kune iyo chip screen yekudhinda layer, iyo general rectangular pad inomiririra kutanga kwepini.Panguva yekuputika, pini imwe yechip inofanira kugadziriswa kutanga.Mushure mekugadzirisa zvakanaka nzvimbo yezvikamu, mapini e diagonal echiputi anofanirwa kugadziriswa kuitira kuti zvikamu zvinyatsobatanidzwa nechinzvimbo chisati chaputira.
6. Hapana electrode yakanaka kana yakaipa muceramic chip capacitors uye regulator diodes mumagetsi ekugadzirisa magetsi, asi zvakakosha kusiyanisa electrode yakanaka uye yakaipa ye LED, tantalum capacitors uye electrolytic capacitors.Kune ma capacitor uye diode components, iyo yakamisikidzwa yekupedzisira ichave isina kunaka.Mupakeji yeSMT LED, pane yakanaka - yakaipa kutungamira munzira yemwenje.Kune zvikamu zvakavharidzirwa zvine silk screen identification ye diode circuit diagram, iyo yakaipa diode yakanyanyisa inofanira kuiswa pamagumo emutsara wakatwasuka.
7. yekristaro oscillator, passive crystal oscillator kazhinji mapini maviri chete, uye hapana mapoinzi akanaka uye asina kunaka.Iyo inoshanda crystal oscillator kazhinji ine mapini mana.Teerera kune tsananguro yepini yega yega kuti udzivise kukanganisa welding.
8. Pakuputirwa kweplug-in components, senge simba module zvine chekuita nezvikamu, pini yemudziyo inogona kugadziridzwa isati yave welding.Mushure mokunge zvikamu zviiswa uye zvakagadziriswa, iyo solder inonyungudutswa nesimbi yakanyungudutswa kumashure uye inosanganiswa nechemberi ne solder pad.Usaisa yakawandisa solder, asi kutanga zvikamu zvinofanira kunge zvakagadzikana.
9. PCB dhizaini matambudziko anowanikwa panguva welding inofanira kurekodhwa nenguva, senge yekumisikidza kupindira, isiriyo pad saizi dhizaini, chikamu chekuputira zvikanganiso, nezvimwe, nekuda kwekuvandudza kunotevera.
10. mushure mekuputika, shandisa girazi rinokudza kuti utarise majoini e solder uye tarisa kana pane chero weld defect kana short circuit.
11. mushure mekupedzwa kwebasa rekugadzirisa bhodhi rekugadzira, doro uye imwe yekuchenesa inofanira kushandiswa kuchenesa nzvimbo yebhodhi redunhu, kudzivirira nzvimbo yebhodhi yedunhu yakanamatira kune iron chip short circuit, asiwo inogona kuita bhodhi redunhu. zvakanyanya kuchena uye kunaka.
Nguva yekutumira: Aug-17-2021