Mukugadzira nzira yePCB gungano redunhu mabhodhi, hazvidzivisiki kuti pachava nekuremara kwewelding uye kukanganisa kwechimiro.Izvi zvinhu zvinokonzeresa njodzi shoma kubhodhi redunhu.Nhasi, chinyorwa ichi chinosuma zvakadzama izvo zvakajairika welding kukanganisa, maitiro ekutaridzika, njodzi uye zvinokonzeresa zvePCBA.Ngatitarisei Zvitarise!
Pseudo Soldering
Mamiriro ekuonekwa:pane muganhu wakasviba wakajeka pakati pe solder uye mutungamiri wezvikamu kana foil yemhangura, uye solder yakanyura yakananga kumuganhu.
Njodzi:kutadza kushanda zvakanaka.
Kuongorora kwechikonzero:
1.Chikamu chinotungamira hachina kucheneswa, tini rakaputirwa kana oxidized.
2.Bhodhi rakadhindwa harina kucheneswa zvakanaka, uye kunaka kwekupfapfaidza kunoputika hakuna kunaka.
Solder kuunganidza
ChitarisikoIyo solder joint structure yakasununguka, yakachena uye yakasviba.
Chikonzero Ongororo:
1.The solder quality haisi yakanaka.
2.The soldering tembiricha haina kukwana.
3.Kana solder isati yasimbiswa, chikamu chinotungamira chakasununguka.
Solder yakawandisa
Mamiriro ekuonekwa:Solder surface is convex.
NjodziTsvina solder uye inogona kuchengeta kuremara.
Kuongorora kwechikonzero:Solder evacuation yanonoka.
Kunyanya solder
Mamiriro ekuonekwa:Iyo welding nzvimbo iri pasi pe80% yepadhi, uye solder haina kuumba yakatsetseka shanduko yepasi.
Njodzi:Simba remagetsi risina kukwana.
Chikonzero Ongororo:
1.Poor solder flow kana kukurumidza kubuda kwe solder.
2.Inisufficient flux.
3.Welding nguva ipfupi.
Rosin Welding
Mamiriro ekuonekwa:Pane rosin slag mune weld.
NjodziSimba risina kukwana, kusafambisa zvakanaka, uye rinogona kunge riri on and off.
Chikonzero Ongororo:
1.Kuwanda kwemichina yewelding kana kuti yakundikana.
2.Isina kukwana welding nguva uye kusakwana kupisa.
3.The oxide film pamusoro pepamusoro haina kubviswa.
Overheat
Chitarisikowhite solder majoini, hapana simbi inopenya, rough pamusoro.
Njodzi:Iyo padhi iri nyore kubvisa uye simba rinoderedzwa.
Kuongorora kwechikonzero:
Simba resimbi yesimbi yakakura zvikuru uye nguva yekupisa yakareba.
Cold welding
ChitarisikoMusoro webhinzi yakaita sezvimedu, uye dzimwe nguva panogona kuve nekutsemuka.
Njodzi:kuderera kwesimba, kutadza kwemagetsi conductivity.
Kuongorora kwechikonzero:Pane jitter isati yasimbiswa solder.
Kupinda kusina kunaka
ChitarisikoIyo interface pakati pe solder uye weldment yakakura kwazvo uye haina kutsvedza.
Njodzi:low intensity, hapana chinongedzo kana chinopindirana.
Chikonzero Ongororo:
1.The weldment haina kuchena.
2.Isina kukwana kana kuti yakashata yehutano flux.
3.Weldments haisi kupisa zvakakwana.
Asymmetrical
ChitarisikoIyo solder haiyerere kune padhi.
Njodzi:Simba risina kukwana.
Chikonzero Ongororo:
1.Solder fluidity haina kunaka.
2.Isina kukwana kana kuti yakashata yehutano flux.
3.Kupisa kusina kukwana.
loose
Mamiriro ekuonekwa:Waya kana chikamu chinotungamira chinogona kutamiswa.
Njodzi:murombo kana kusaita conduction.
Chikonzero Ongororo:
1.Mutungamiri unofamba musati wasimbisa solder, zvichiita kuti voids.
2.Leads haina kunyatsogadzirirwa (varombo kana kuti vasina kunyorova).
Kurodza
Chitarisiko Features:Kuonekwa kwezano.
Njodzi:chitarisiko chisina kunaka, chiri nyore kukonzera bridging phenomenon.
Chikonzero Ongororo:
1.Too shoma flux uye yakanyanyisa kupisa nguva.
2.Ikona yesimbi yesimbi kuti ibvise haina kunaka.
Bridging
Mamiriro ekuonekwa:Waya dziri pedyo dzakabatanidzwa.
Njodzi:Electrical short circuit.
Chikonzero Ongororo:
1.Too much solder.
2.Ikona yesimbi yesimbi kuti ibvise haina kunaka.
pinhole
ChitarisikoKune maburi anoonekwa nekutarisa kwekuona kana kuderera kwekukura.
Njodzi:Simba risina kukwana, majoini e solder ari nyore kukanganisa.
Kuongorora kwechikonzero:Mukaha uripo pakati pemutobvu negomba repadhi wakakurisa.
Bubble
Mamiriro ekuonekwa:Mudzi wemutobvu une bumpu rinofema solder, uye mukati mune gomba.
Njodzi:Temporary conduction, asi zviri nyore kukonzeresa kuita kwakashata kwenguva yakareba.
Chikonzero Ongororo:
1.Mukaha pakati pemutobvu negomba repadhi rakakura.
2.Poor lead wetting.
3.The welding time of the double-sided board kuburikidza nemakomba yakareba, uye mhepo mumakomba inowedzera.
Mupurisaper foil inosimudzwa
Mamiriro ekuonekwa:Iyo foil yemhangura inobviswa kubva pabhodhi rakadhindwa.
Njodzi:Bhodhi rakadhindwa rakakuvadzwa.
Kuongorora kwechikonzero:Nguva yewelding yakarebesa uye tembiricha yakanyanya.
Peel
ChitarisikoZvisungo zvekutengesa zvinoputirwa kubva pamucheka wemhangura (kwete foil yemhangura uye bhodhi rakadhindwa).
Njodzi:Vhura dunhu.
Kuongorora kwechikonzero:Kuisa simbi isina kunaka papedhi.
Mushure mekuongorora zvikonzero zvePCB gungano solderingkukanganisa, isu tine chivimbo mukukupa iwe yakanakisa musanganiswa weturn-kiyi PCB musangano sevhisi, mhando, mutengo uye nguva yekuendesa mune yako Diki batch vhoriyamu PCB gungano odha uye Mid batch Vhoriyamu PCB gungano kurongeka.
Kana iwe uchitsvaga yakakodzera PCB gungano mugadziri, ndapota tumira ako BOM mafaera uye PCB mafaera kune sales@pcbfuture.com.Ese mafaera ako akavanzika zvakanyanya.Tichakutumira quote chaiyo ine nguva yekutungamira mumaawa makumi mana nemasere.
Nguva yekutumira: Oct-09-2022