Chii chiri musiyano uripo pakati peAOI neSPI20240904?
Kunzwisisa Kuongorora kweSPI: Kiyi yeKugadzira Magetsi Akavimbika
Munyaya yekugadzira zvemagetsi, kunyatsoita zvinhu nemazvo uye kuvimbika ndizvo zvinonyanya kukosha. Surface Mount Technology (SMT) yakachinja indasitiri, zvichiita kuti kugadzirwa kwemidziyo yemagetsi midiki uye inoshanda zvakanaka. Zvisinei, nekuoma kuri kuwedzera kwemasekete nezvikamu, kuve nechokwadi chekuti mhando uye mashandiro emidziyo iyi yemagetsi kwave kwakaoma. Apa ndipo panotanga Solder Paste Inspection (SPI). Kuongorora SPI inzira yakakosha yekudzora hunhu muSMT inobatsira kuchengetedza mwero wepamusoro mukugadzira zvemagetsi. Muchinyorwa chino, tichaongorora zvakadzama nezveKuongorora kweSPI, kukosha kwayo, nzira dzayo, uye simba rayo pamhando yese yekubatanidza maelektroni.
Chii chinonzi SPI inspection?
Kuongororwa kweSolder Paste (SPI) zvinoreva maitiro ekuongorora kushandiswa kwesolder paste pabhodhi redunhu rakadhindwa (PCB) usati waisa zvikamu zvemagetsi. Solder paste musanganiswa wesolder flux neupfu hwesolder hunoshandiswa kugadzira majoini esolder pakati pezvikamu zvemagetsi nePCB. Kushandiswa kwakakodzera kwesolder paste kwakakosha nekuti kunokanganisa kuvimbika uye kushanda kwechigadzirwa chekupedzisira. SPI inoita kuti solder paste iiswe nemazvo, nehuwandu hwakakodzera, uye munzvimbo dzakakodzera, zvichideredza mukana wezvikanganiso pakusangana kwekupedzisira.
Sei uchishandisa SPI inspection mukugadzira zvemagetsi?
1. Kudzivirira Zvikanganiso: SPI inoita basa rakakosha mukudzivirira zvikanganiso zvakajairika zvakaita semabhiriji ezvigadziko, kusakwana kwezvigadziko, uye kusarongeka zvakanaka kwezvikamu. Nekuona matambudziko aya pakutanga kwekugadzirwa, SPI inobatsira kudzivirira kugadzirisa nekugadzirisa kunodhura.
2. Kuvimbika Kwakavandudzwa: Kushandisa paste yekusolder kwakakodzera kwakakosha pakugadzira majoini epaste akavimbika anogona kutsungirira kushushikana kwemuchina uye kutenderera kwekupisa. SPI inoita kuti paste yekusolder iiswe zvakaenzana uye nemazvo, zvichitungamira pakuvandudzika kwekuvimbika uye kugara kwenguva refu kwechishandiso chemagetsi.
3. Kushanda Nesimba Kwemari: Kuona nekugadzirisa matambudziko ekushandiswa kwe solder paste pakutanga kwekugadzirwa kuri nani pane kugadzirisa matambudziko mushure mekunge zvikamu zvaiswa kana kusungirirwa. SPI inobatsira mukuderedza nguva yekushanda kwekugadzira uye kuderedza marara ezvinhu.
4. Kutevedzera Mitemo: Maindasitiri mazhinji anoda kutevedzera mitemo nemirau yemhando yepamusoro. SPI inobatsira vagadziri kusangana nemirau iyi nekuona kuti kuiswa kwepaste yekusonesa kunosangana nezvinodiwa.
Ndedzipi nzira dzekuongorora SPI?
SPI inogona kuitwa uchishandisa nzira dzakasiyana-siyana, imwe neimwe iine zvayakanakira uye mashandisirwo ayo. Nzira huru dzinosanganisira:
1.Kuongorora Otomatiki Kwemaziso (AOI): Iyi ndiyo nzira inonyanya kushandiswa yeSPI, inoshandisa makamera ane resolution yepamusoro uye maalgorithms ekugadzirisa mifananidzo kuti vaongorore mashandisirwo e solder paste. Masisitimu eAOI anogona kuona zvinhu zvisina kujairika zvakaita sekunyanyisa kana kusakwana kwe solder paste, kusarongeka zvakanaka, uye kubatana. Masisitimu aya anoshanda zvakanyanya uye anogona kugadzirisa maPCB akawanda nekukurumidza.
2.Kuongorora X-ray: Kuongorora X-ray kunoshandiswa kuona matambudziko asingaonekwe nemaziso kana kuburikidza nenzira dzakajairwa dzekutarisa. Inonyanya kubatsira pakuongorora maumbirwo emukati mePCB dzine layer yakawanda uye kuona matambudziko akaita semabhiriji e solder akavanzwa kana kuti ma voids.
3. Kuongorora nemaoko: Kunyangwe zvisingawanzoitiki mukugadzira zvinhu zvakawanda, kuongorora nemaoko kunogona kushandiswa mukugadzira zvinhu zvidiki kana senzira yekuwedzera. Vaongorori vakadzidziswa vanoongorora nemaziso mashandisirwo emuchina wekunamira zvinhu uye vanoshandisa maturusi akadai semagirazi ekukudza zvinhu kuti vaone zvikanganiso.
4.Kuongorora neLaser: Masisitimu eSPI anoshandiswa neLaser anoshandisa malaser kuyera kukwirira uye huwandu hwezvinhu zvakaiswa paste. Nzira iyi inopa zviyero chaizvo uye inoshanda pakuona matambudziko ane chekuita nehukuru hwepaste uye kufanana kwayo.
Ndezvipi zvinhu zvakakosha muSPI Inspection?
Zvinodiwa zvakakosha zvakawanda zvinoongororwa panguva yekuongororwa kweSPI kuti zvive nechokwadi chekuti paste yekusolder inoshandiswa zvakanaka. Izvi zvinosanganisira:
1. Kuwanda kweSolder Paste: Huwandu hwesolder paste inoiswa papedhi rega rega hunofanira kunge huri mukati memiganhu yakatarwa. Kuwanda kwepaste kana kushoma kunogona kukonzera zvikanganiso mumajoini esolder.
2. Ukobvu hwepaste: Ukobvu hwepaste yekusolder hunofanira kunge hwakafanana kuitira kuti zvikamu zvinyoroveswe zvakanaka uye zvinamire. Kusiyana kweukobvu hwepaste kunogona kukanganisa kunaka kwejoinhi yekusolder.
3. Kurongeka: Paste yekusonesa inofanira kunge yakanyatsorongeka nemaPCB pads. Kusarongeka zvakanaka kunogona kukonzera kusagadzirwa zvakanaka kwemajoini ekusonesa uye matambudziko ekuisa zvikamu.
4. Kugovera Paste: Kugovera paste yesolder paste nenzira imwechete kwakakosha kuti pave nekusolder nguva dzose. Masisitimu eSPI anoongorora kuenzana kwekugovera paste kudzivirira matambudziko akadai sekusagadzikana kwesolder kana kubatanidza.
Maitiro ekuvimbisa kunaka kwekudhinda kweSolder Paste?
● Kumhanya kweSqueegee: Kumhanya kwekufamba kwechinhu chinosvinwa kunosarudza kuti inguva yakareba sei iripo yekuti chipunu chesolder "chitenderere" mumaburi estencil uye pamapedhi ePCB. Kazhinji, 25mm pasekondi inoshandiswa asi izvi zvinosiyana zvichienderana nehukuru hwemaburi ari mukati mestencil uye chipunu chesolder chinoshandiswa.
● Kumanikidzwa kweSqueegee: Munguva yekudhinda, zvakakosha kuisa kumanikidzwa kwakakwana muhurefu hwese hwebanga rekudzvanya kuti uve nechokwadi chekuti stencil yapukutwa zvakanaka. Kumanikidzwa kushoma kunogona kukonzera "kusviba" kwepastencil pastencil, kusaisa zvakanaka, uye kusaendeswa kuPCB zvisina kukwana. Kumanikidzwa kwakawandisa kunogona kukonzera "kubviswa" kwepaste kubva mumaburi makuru, kupera zvakanyanya pastencil uye squeegees, uye zvinogona kukonzera "kubuda ropa" kwepastencil pakati pestencil nePCB. Nzvimbo yakajairika yekumanikidzwa kwesqueegee i500 magiramu ekumanikidzwa pa 25mm yebanga rekudzvanya.
● Dzvinya Angle: Kona ye squeegee inowanzoiswa 60° nema holders avanosungirirwa. Kana kona ikawedzerwa zvinogona kukonzera "kubviswa" kwe holder paste kubva muma apertures e stencil uye saka solder paste shoma inoiswa. Kana kona ikadzikira, zvinogona kukonzera kuti salt paste isiyiwe pa stencil mushure mekunge press yapedza kudhinda.
● Kumhanya Kwekuparadzanisa Stencil: Uku ndiko kumhanya uko PCB inoparadzana nestencil mushure mekudhinda. Kuronga kumhanya kunosvika 3mm pasekondi kunofanirwa kushandiswa uye kunodzorwa nehukuru hwemaburi ari mukati mestencil. Kana izvi zvichikurumidza, zvichaita kuti paste yekusonesa isabude zvizere kubva mumaburi uye kuumbwa kwemipendero yakakwirira yakakomberedza maburi, inozivikanwawo se "nzeve dzembwa".
● Kuchenesa mastencil: Stencil inofanira kucheneswa nguva nenguva panguva yekushandiswa, izvo zvinogona kuitwa nemaoko kana otomatiki. Muchina wekudhinda otomatiki une sisitimu inogona kugadziriswa kuchenesa stencil mushure mehuwandu hwakatarwa hwemaprints uchishandisa zvinhu zvisina lint zvinoshandiswa nekemikari yekuchenesa yakaita seIsopropyl Alcohol (IPA). Sisitimu iyi inoita mabasa maviri, rekutanga kuchenesa pasi pestencil kuti isatsvedze, uye rechipiri kuchenesa maburi uchishandisa vacuum kumisa kuvharika.
● Mamiriro eStencil neSqueegee: Mastencil nema squeegee ese anofanira kuchengetwa nekuchenjererwa nekuti chero kukuvara kwemuchina kune chero chimwe chazvo kunogona kukonzera mhedzisiro isingafadzi. Zvese zvinofanira kuongororwa zvisati zvashandiswa uye kucheneswa zvakanaka mushure mekushandisa, zvakanaka kushandisa sisitimu yekuchenesa otomatiki kuitira kuti chero marara e solder paste abviswe. Kana paine kukuvara kwakaonekwa kune squeegee kana stencils, zvinofanirwa kutsiviwa kuti ive nechokwadi chekuti maitiro acho akavimbika uye anodzokororwa.
● Dhinda Stroke: Iyi ndiyo daro rinofambwa ne squeegee pamusoro pe stencil uye zvinokurudzirwa kuti rive 20mm kupfuura gomba riri kure. Daro riri kupfuura gomba riri kure rakakosha kuti paste ikwanise kutenderera pakudzokera sezvo iri kutenderera bead re solder paste rinoburitsa simba rekudzikira rinosundira paste mugomba.
Ndeapi MaPCB Anogona Kudhindwa?
Zvisineiyakaoma,IMS,kuomerera-kuchinjikakanaPCB inochinjika(tarisai yeduKugadzira PCB), kana simba rePCB risina kukwana kutsigira PCB pachayo yakati sandara sezvinodikanwa pamatare eSMT lines, mugadziri wePCB assembly achakumbira kuti igadzirise.Mutakuri weSMTkana mutakuri (wakagadzirwa neDurostone).
Ichi chinhu chakakosha kuti PCB ibatwe yakabatana nestencil panguva yekudhinda. Kana PCB, zvisinei nekuti yakasimba sei, IMS, iri rigid-flex kana flex, isina kutsigirwa zvizere, zvinogona kukonzera zvikanganiso zvekudhinda, zvakaita sekuiswa kwepaste isina kunaka uye kusvibiswa. Zvitsigiro zvePCB zvinowanzopihwa michina yekudhinda ine urefu hwakatarwa uye ine nzvimbo dzakarongwa kuti ive nechokwadi chekuti maitiro acho anoenderana. Kunewo maPCB anochinjika uye anobatsira pakuungana kwemativi maviri.
PKuongorora Solder Paste (SPI)
Maitiro ekudhinda solder paste ndeimwe yezvikamu zvakakosha zvekugadzirisa surface mount. Kana chikanganiso chikaonekwa nekukurumidza, zvinodhura zvishoma kugadzirisa - mutemo unobatsira kufunga nezvawo ndewekuti chikanganiso chakaonekwa mushure mekudzokorora chichadhura kagumi kupfuura mari yekugadzirisazve pane yakaonekwa isati yagadziriswazve - chikanganiso chakaonekwa mushure mekuedzwa chichadhura kagumi kupfuura imwe. Zvinonzwisisika kuti maitiro ekudhinda solder paste anopa mikana yakawanda yekukanganisa kupfuura chero imwe.Maitiro Ekugadzira Tekinoroji yeSurface Mount (SMT)Pamusoro pezvo, kuchinja kune solder paste isina lead uye kushandiswa kwezvikamu zvidiki, kwakawedzera kuoma kwemaitiro ekudhinda. Zvave zvichiratidzwa kuti solder paste dzisina lead hadzipararire kana "kunyorova" pamwe chete ne tin lead solder paste. Kazhinji, nzira yekudhinda yakanyatsojeka inodiwa mumaitiro asina lead. Izvi zvakasunda mugadziri kuti aise imwe mhando yekuongorora mushure mekudhinda. Kuti asimbise maitiro acho, automatic solder paste inspection inogona kushandiswa kutarisa nemazvo ma solder paste deposits. PaRICHFULLJOY, tinogona kuona zvimwe zvikanganiso zve printed solder paste, line insufficient deposits, excessive deposits, shape deformation, missing paste, paste offset, smearing, bridging nezvimwe.
