MushureSMT reflow solderingisu tichasangana nezvimwe zvakakanganisika zviitiko, izvi SMT kugadzirisa solder hurema huchakanganisa zvakananga kana zvisina kunanga kunaka kwechigadzirwa.Izvi zvakakanganisika zviitiko zvakajeka SMT vanoshanda pane chigamba chekugadzirisa kukanganisa kutonga, kuitira kupa iyo indasitiri benchmark yekuvandudza kugadzirwa uye kushanda kwezita rakashata.Muchigamba chekugadzirisa chezviitiko izvi zvakakanganisika zvakaonekwa, zvinofanirwa kuve zvakanyatsogadziriswa kana kugadzirisa kurapwa.Saka tinofanira kunzwisisa sei kuti tizive chiitiko chakaipa?
Pazasi kuti ugadzirise zvinotevera:
1. (kunyange tin) SMT processing welding even tin inonziwo tin bhiriji, pakati pezvikamu zvinoguma, pakati pepedyo solder majoini ezvikamu, pamwe chete nemajoini ekutengesa uye waya dziri pedyo, perforations, nezvimwewo hazvifaniri kubatanidzwa nechikamu che solder yakabatana pamwechete, SMT processing industry inonzi even tin.
2. (monument) tombstone, inozivikanwawo seManhattan phenomenon, inoreva kumagumo maviri ekutengesa kwezvikamu zvechip, mushure mekugadzirisazve kutengesa, imwe yeinoperera kuguma kure nepedhi yechikamu chese chaive chakatsvuka uye chakatwasuka.SMT indasitiri inonzi chiyeuchidzo.
3. (side stand) chip component side uye PCB pad contact phenomenon.iyo SMT industry inonzi side stand.
4. (offset) zvikamu munzvimbo yakatwasuka kufamba, zvichiita kuti solder kuguma kana pini haina kubatanidzwa nePCB pad.
5. (anti-white) chidimbu chechikamu chemberi kune PCB, chikamu chepasi kumusoro chiitiko.
6. (tin beads) mune reflow soldering, yakanamatira pachidimbu chechikamu chechikamu kana kupararira mumajoini ekutengesa annex madiki mabead e solder.
7. (kutonhora soldering) reflow incomplete phenomenon, solder haina kusvika pakunyunguduka kwayo tembiricha kana welding kupisa hakuna kukwana, kuitira kuti yakasimbiswa pamberi pekunyorova uye kuyerera, hapana kuumbwa kwechero simbi alloy layer, kuitira kuti zvese. kana chikamu chemutengesi mune imwe nyika isiri-crystalline uye inongovaka pamusoro pesimbi iri kutengeswa.
8. (core suction) solder kubva padhi padhuze nepini kuti ukwire kusvika papini uye chip body, zvichikonzera kusakwana solder kana isina chinhu solder pane solder majoini.
9. (reverse) inoreva polarity yezvikamu mushure mekuputika, iyo polarity yekutungamira kwezvinodiwa chaizvo zvekutungamira haina kuenderana.
10. (bubble) solder mukusimbiswa kwegasi kusati kwakundikana kupukunyuka munguva, kuumbwa kwechiitiko chegomba mukati mejojo ye solder.
11. (pinhole) mune solder joint pamusoro kuita maburi setsono.
12. (fissure) solder joints nekuda kwe mechanical stress kana kushushikana kwemukati kunokonzerwa nechiitiko chekuputika kwemajoini.
13. (tin tip) welding paburi rekunze rakabudikira setsono kana kuti spiky tin.
14. (mamwe tin) soldering pane solder yakawanda zvikuru kupfuura yakajairika uwandu kudiwa, saka kuti zvakaoma kuona rondedzero soldered zvikamu kana solder kuumba murwi spherical.
15. (yakavhurika solder) chikamu mapini / solder magumo ezvose kunze kana kure nemapedhi avo anoenderana, uye kwete nekuda kwekutengesa.
16. (mavara machena) akaonekwa mune laminated substrate mukati mechiitiko, umo magirazi fibers mu longitudinal uye transverse kuyambuka uye resin kupatsanurwa.Ichi chiitiko chinoratidzwa se discrete white spots kana substrate surface pasi pe "cross-shaped", inowanzobatanidzwa nekuumbwa kwekunetseka nekuda kwekupisa.
17. (grey welding) nekuda kwekushisa kwekushisa kwepamusoro, kubuda kwemhepo yakanyanyisa uye kudzokororwa kunodzokorora, nezvimwewo, pamusoro peiyo weld ine grey, solder crystal yakasununguka, porous uye slag-like.
Zhejiang NeoDen Technology Co., LTD., yakavambwa muna 2010, inyanzvi inogadzira nyanzvi muSMT pick and place machine, reflow oven, stencil printing machine, SMT production line nezvimwe Zvigadzirwa zveSMT.Isu tine yedu R & D timu uye fekitori pachedu, tichitora mukana weiyo yedu yakapfuma ine ruzivo R&D, yakanyatso dzidziswa kugadzirwa, yakawana mukurumbira mukuru kubva kune vatengi pasi rese.
Isu tiri munzvimbo yakanaka kwete chete kukupa iwe yepamusoro mhando pnp muchina, asiwo yakanakisa mushure mekutengesa sevhisi.
Mainjiniya akadzidziswa zvakanaka anokupa chero rutsigiro rwehunyanzvi.
10 mainjiniya ane simba mushure mekutengesa sevhisi timu inogona kupindura vatengi mibvunzo uye kubvunza mukati maawa masere.
Mhinduro dzehunyanzvi dzinogona kupihwa mukati memaawa makumi maviri nemana zvese zuva rebasa uye mazororo.
Nguva yekutumira: Aug-04-2023