Matambudziko Akajairwa muDunhu Board Soldering (2)

suma:

Circuit board welding inzira yakakosha muindasitiri yekugadzira zvemagetsi, kuve nechokwadi chekushanda kwakanaka uye kuvimbika kwemidziyo yemagetsi. Nekudaro, senge chero nzira yekugadzira, haina matambudziko ayo.Mune ino blog, isu tichanyura zvakadzama mumatambudziko akajairika anoitika kana solder redunhu mabhodhi uye nekuongorora anoshanda mhinduro yekuakunda.

1. PCB board short circuit:

Imwe yematambudziko akajairika mudunhu bhodhi soldering ndeye mapfupi maseketi. Dunhu pfupi rinoitika kana ikozvino inotora nzira isingatarisirwi nekuda kwekudzika-kupikisa kubatana pakati pemapoinzi maviri mudunhu. Izvi zvinogona kukonzerwa nezvakasiyana siyana, senge solder mabhiriji, akarasika conductive tsvina, kana dhizaini kukanganisa.

mhinduro:

Kuti udzivise maseketi mapfupi, zvakakosha kuti unyatso kuongorora uye kuyedza bhodhi mushure mekuita solder. Kuita tekinoroji yekuongorora yekutarisa (AOI) tekinoroji inogona kubatsira zvakanyanya kuona zvingangoitika zvepfupi nyaya. Pamusoro pezvo, kushandisa maturusi ekutengesa maturusi, senge simbi yekunyungudutsa ine tembiricha yekudzora, inogona kubatsira kudzivirira yakawandisa solder kubva pakugadzira kubatanidza kusingaite.

2. Yakasviba uye yakasviba kuonana:

Yakasviba uye yakasvibira mabikirwo paPCB pamusoro anogona kuratidza yakashata solder kubatana. Dambudziko iri rinowanzokonzerwa nekusakwana kwekupisa kupisa panguva yekugadzira solder, zvichiita kuti kunyorovesa kusina kukwana kwejoint solder.

mhinduro:

Kuti uwane kunyorova kwakaringana uye kudzivirira kusviba, kugunun'una, welding paramita inofanirwa kugadziridzwa. Ita shuwa kuti solder iron tip yakachena, yakanamirwa, uye patembiricha chaiyo. Uyezve, kushandisa flux panguva yekutengesa kunogona kuwedzera kuyerera kwe solder uye kugadzirisa majoini ekuumbwa. Flux inobatsira kubvisa maokisi uye zvinosvibisa kubva panzvimbo yesimbi, inosimudzira kunyorova uye majoini akasimba ekutengesa.

3. PCB solder joints inoshanduka yegoridhe yero:

Kana majoini solder pamusoro PCB pamusoro pendarama yero, zvinoratidza kuti pane matambudziko akadai zvisizvo solder alloy kuumbwa kana zvisizvo solder teknolojia. Iyi nyaya inogona kukanganisa kutendeseka uye kuvimbika kwebhodhi redunhu.

mhinduro:

Kushandisa iyo chaiyo solder alloy kwakakosha kuti uve nechokwadi chehupenyu hurefu hwedunhu rako redunhu. Gara uchiomerera kune indasitiri yakajairwa solder alloy nziyo uye dzivisa kushandisa substandard kana uncertified solder zvinhu. Pamusoro pezvo, kuchengetedza tembiricha yekudziya uye kushandisa nzira dzakakodzera dzekutengesa, kusanganisira preheating iyo PCB uye kushandisa iyo yakaringana solder, inogona kubatsira kuwana yepamusoro yemhando yegoridhe solder majoini.

4. Kukanganisa kwezvakatipoteredza pane zvakakanganiswa redunhu rebhodhi:

Mamiriro ezvinhu ayo mapuranga ematunhu anotengeswa anogonawo kukanganisa zvakanyanya kunaka kwechigadzirwa chekupedzisira. Zvinhu zvakadai sekunyorova, kushanduka kwetembiricha, uye zvinosvibisa mhepo zvinogona kukonzera kukanganisa kwakasiyana mumabhodhi edunhu.

mhinduro:

Kuti uderedze kukanganisa kwezvakatipoteredza pakukanganisa kwebhodhi redunhu, zvakakosha kumisikidza inodzorwa yekugadzira nharaunda. Kukuvadzwa kunokonzerwa nemagetsi akamira kunogona kudzivirirwa nekushandisa nzira dzekudzivirira dzeESD (electrostatic discharge), sekushandisa ESD yakachengeteka nzvimbo yekushandira uye kupfeka giya rekudzivirira. Pamusoro pezvo, kuchengetedza tembiricha yakakodzera uye humidity mazinga munzvimbo dzekugadzira kunobatsira kudzivirira matambudziko akadai sekuremara kwewelding uye kuparara kwezvinhu.

Mukupedzisa:

Circuit board soldering inzira yakaoma inoda kunyatsojeka uye kutarisisa kune zvakadzama.Nekugadzirisa matambudziko akajairika anowanzo kumuka panguva iyi, vagadziri vanogona kuve nechokwadi chekugadzirwa kwemhando yepamusoro, yakavimbika michina yemagetsi. Kushandisa mhinduro dzakakurukurwa mubhurogu ino, senge nzira dzekuongorora dzinoshanda, dzakagadziridzwa solder paramita, uye inodzorwa mamiriro ezvakatipoteredza, inogona kuvandudza zvakanyanya kunaka kwese kweseti bhodhi soldering.