Kachulukidwe kagulu ndikwambiri, zinthu zamagetsi ndi zazing'ono kukula komanso zopepuka kulemera, ndipo voliyumu ndi gawo la zigawo zachigamba ndi pafupifupi 1/10 ya zida za pulagi.
Pambuyo pa kusankha kwakukulu kwa SMT, kuchuluka kwa zinthu zamagetsi kumachepetsedwa ndi 40% mpaka 60%, ndipo kulemera kumachepetsedwa ndi 60% mpaka 80%.
Kudalirika kwakukulu komanso kukana kugwedezeka kwamphamvu.Kuchepa kwachilema kwa ophatikizana a solder.
Makhalidwe abwino apamwamba pafupipafupi.Kuchepetsa kusokoneza kwa electromagnetic ndi RF.
Zosavuta kukwaniritsa zokha, kukonza magwiridwe antchito.Chepetsani mtengo ndi 30% ~ 50%.Sungani deta, mphamvu, zida, ogwira ntchito, nthawi, ndi zina.
Chifukwa chiyani mukugwiritsa ntchito Maluso a Surface Mount Skills (SMT)?
Zogulitsa zamagetsi zimafuna miniaturization, ndipo zida za plug-in za perforated zomwe zagwiritsidwa ntchito sizingachepetsenso.
Ntchito yamagetsi yamagetsi imakhala yokwanira, ndipo gawo lophatikizika (IC) losankhidwa lilibe zigawo za perforated, makamaka zazikulu, zophatikizika kwambiri, ndi zigawo zapamwamba ziyenera kusankhidwa.
Kuchuluka kwazinthu, kupanga zokha, fakitale yotsika mtengo kwambiri, kupanga zinthu zabwino kuti zikwaniritse zosowa zamakasitomala ndikulimbitsa mpikisano wamsika.
Kupanga zida zamagetsi, kupangidwa kwa mabwalo ophatikizika (ics), kugwiritsa ntchito kangapo kwa data ya semiconductor
Kusintha kwaukadaulo wamagetsi ndikofunikira, kuthamangitsa zomwe zikuchitika padziko lonse lapansi
Chifukwa chiyani mugwiritse ntchito njira yopanda ukhondo pamaluso okwera pamwamba?
Popanga, madzi otayira pambuyo poyeretsa amabweretsa kuipitsidwa kwa madzi, dziko lapansi ndi nyama ndi zomera.
Kuphatikiza pa kuyeretsa m'madzi, gwiritsani ntchito zosungunulira zokhala ndi ma chlorofluorocarbon (CFC&HCFC)Kuyeretsa kumayambitsanso kuipitsa komanso kuwononga mpweya ndi mpweya.Zotsalira za woyeretsa zipangitsa dzimbiri pa bolodi la makina ndikusokoneza kwambiri mtundu wa chinthucho.
Kuchepetsa ntchito yoyeretsa komanso kukonza makina.
Palibe kuyeretsa kungachepetse kuwonongeka kwa PCBA panthawi yoyenda ndi kuyeretsa.Palinso zigawo zina zomwe sizingathe kutsukidwa.
Zotsalira za flux zimawongoleredwa ndipo zitha kugwiritsidwa ntchito molingana ndi zofunikira za mawonekedwe azinthu kuti mupewe kuyang'ana kowonekera kwa malo oyeretsera.
Kutuluka kotsalirako kwasinthidwa mosalekeza chifukwa cha ntchito yake yamagetsi kuti zinthu zomalizidwa zisatayike, zomwe zimapangitsa kuvulala kulikonse.
Kodi njira zodziwira zigamba za SMT za malo opangira zigamba za SMT ndi ziti?
Kuzindikira mu SMT processing ndi njira yofunika kwambiri kuonetsetsa khalidwe la PCBA, waukulu kudziwika njira monga Buku zithunzi kudziwika, solder phala makulidwe gauge kuzindikira, basi kuwala kuwala, X-ray kudziwika, Intaneti kuyezetsa, kuwuluka singano kuyezetsa, etc., chifukwa cha kuzindikirika kosiyanasiyana komanso mawonekedwe a njira iliyonse, njira zodziwira zomwe zimagwiritsidwa ntchito panjira iliyonse ndizosiyana.Mu njira yodziwira smt patch processing plant, kuyang'ana pamanja ndi kuyang'ana kwachangu ndi X-ray ndi njira zitatu zomwe zimagwiritsidwa ntchito kwambiri poyang'anira ndondomeko ya msonkhano.Kuyesa pa intaneti kumatha kukhala kuyesa kokhazikika komanso kuyesa kwamphamvu.
Global Wei Technology imakupatsirani chidule cha njira zina zozindikirira:
Choyamba, njira yodziwira pamanja.
Njirayi ili ndi zolowera zochepa ndipo sizifunikira kupanga mapulogalamu oyesera, koma ndiyochedwa komanso yokhazikika ndipo imayenera kuyang'ana malo omwe amayezedwa.Chifukwa cha kusowa kwa kuyang'anitsitsa kowoneka, sikugwiritsidwa ntchito kawirikawiri ngati njira yowunikira khalidwe la kuwotcherera pazitsulo zamakono za SMT, ndipo zambiri zimagwiritsidwa ntchito pokonzanso ndi zina zotero.
Chachiwiri, njira yodziwira kuwala.
Ndi kuchepa kwa PCBA Chip chigawo phukusi kukula ndi kuwonjezeka kwa dera gulu chigamba kachulukidwe, SMA anayendera akukhala kovuta kwambiri, pamanja diso anayendera alibe mphamvu, kukhazikika kwake ndi kudalirika n'kovuta kukwaniritsa zofunika kupanga ndi kulamulira khalidwe, kotero kugwiritsa ntchito kuzindikira kwamphamvu kumakhala kofunikira kwambiri.
Gwiritsani ntchito automated optical inspection (AO1) ngati chida chochepetsera zolakwika.
Ikhoza kugwiritsidwa ntchito kupeza ndi kuthetsa zolakwika kumayambiriro kwa ndondomeko ya chigamba kuti mukwaniritse bwino ndondomeko.AOI imagwiritsa ntchito machitidwe a masomphenya apamwamba, njira zatsopano za chakudya chopepuka, kukulitsa kwambiri ndi njira zovuta zogwirira ntchito kuti akwaniritse ziwopsezo zazikulu zojambula pa liwiro lalikulu la mayeso.
Udindo wa AOl pamzere wopanga ma SMT.Nthawi zambiri pamakhala mitundu itatu ya zida za AOI pa mzere wopangira wa SMT, yoyamba ndi AOI yomwe imayikidwa pa sikirini yosindikiza kuti izindikire cholakwika cha solder paste, chomwe chimatchedwa post-screen printing AOl.
Yachiwiri ndi AOI yomwe imayikidwa pambuyo pa chigamba kuti izindikire zolakwika pakuyika zida, yotchedwa post-patch AOl.
Mtundu wachitatu wa AOI umayikidwa pambuyo pa kusefukiranso kuti azindikire kuwonongeka kwa chipangizo ndi kuwotcherera nthawi imodzi, yotchedwa post-reflow AOI.
