Kuyang'anira zinthu zama electroplated terminal ndi ntchito yofunika kwambiri mukamaliza kumaliza. Zokhazo zomwe zimagwiritsidwa ntchito ndi electroplated zomwe zimadutsa kuyendera zikhoza kuperekedwa ku ndondomeko yotsatira kuti igwiritsidwe ntchito.
Nthawi zambiri, zinthu zowunikira pazinthu zomwe zimagwiritsidwa ntchito ndi electroplated ndi: makulidwe a kanema, zomatira, kuthekera kwa solder, mawonekedwe, kuyika, ndi mayeso opopera mchere. Pazinthu zomwe zili ndi zofunikira pazithunzi, pali mayeso a porosity (30U ") a golide pogwiritsa ntchito njira ya nthunzi ya nitric acid, zinthu za faifi za palladium (pogwiritsa ntchito njira ya gel electrolysis) kapena mayeso ena achilengedwe.
1. Electroplating mankhwala kuyendera-filimu makulidwe kuyendera
1.Film makulidwe ndi chinthu chofunikira pakuwunika kwa electroplating. Chida chofunikira chomwe chimagwiritsidwa ntchito ndi mita ya makulidwe a filimu ya fulorosenti (X-RAY). Mfundo yake ndikugwiritsa ntchito ma X-ray kuti muyatse zokutira, kusonkhanitsa mphamvu zomwe zabwezedwa ndi zokutira, ndikuzindikira makulidwe ndi mawonekedwe ake.
2. Njira zodzitetezera mukamagwiritsa ntchito X-RAY:
1) Kuwongolera kwa Spectrum ndikofunikira nthawi iliyonse mukayatsa kompyuta
2) Konzani ma crosshair calibration mwezi uliwonse
3) Gold-nickel calibration iyenera kuchitika kamodzi pa sabata
4) Poyezera, fayilo yoyesera iyenera kusankhidwa molingana ndi zitsulo zomwe zimagwiritsidwa ntchito muzogulitsa.
5) Kwa zatsopano zomwe zilibe fayilo yoyesera, fayilo yoyesera iyenera kupangidwa.
3. Kufunika kwa mafayilo oyesera:
Chitsanzo: Au-Ni-Cu(100-221 sn 4%@0.2 cfp
Au-Ni-Cu——Yesani makulidwe a nickel plating ndiyeno plating golide pa gawo lapansi lamkuwa.
(100-221 sn 4%——-AMP nambala yamkuwa yamkuwa yokhala ndi malata 4%)
2. Electroplating mankhwala kuyendera-kumatira kuyendera
Kuyang'anira kumamatira ndi chinthu chofunikira chowunikira pazinthu za electroplating. Kusamamatira koyipa ndiye vuto lofala kwambiri pakuwunika kwazinthu za electroplating. Nthawi zambiri pamakhala njira ziwiri zoyendera:
1.Njira yopindika: Choyamba, gwiritsani ntchito pepala lamkuwa lokhala ndi makulidwe ofanana ndi malo ozindikira omwe amafunikira kuti muyendetse malo opindika, gwiritsani ntchito pliers ya mphuno yathyathyathya kuti mupirire sampuli mpaka madigiri 180, ndipo gwiritsani ntchito maikulosikopu kuti muwone ngati pali kusenda kapena kusenda kwa zokutira pamalo opindika.
Njira ya 2.Tepi: Gwiritsani ntchito tepi ya 3M kuti mumamatire mwamphamvu pamwamba pa chitsanzo kuti muyesedwe, molunjika pa madigiri a 90, mwamsanga mudule tepiyo, ndikuwonani filimu yachitsulo yomwe ikuphulika pa tepiyo. Ngati simungathe kuwona bwino ndi maso anu, mutha kugwiritsa ntchito maikulosikopu 10x kuti muwone.
3. Kutsimikiza kwa zotsatira:
a) Pasakhale kugwa kwa ufa wachitsulo kapena kumata tepi yotchingira.
b) Pasakhale kusenda kwa zitsulo zokutira.
c) Malingana ngati zinthu zapansi sizikuthyoledwa, pasakhale kusweka kwakukulu kapena kusenda pambuyo popinda.
d) Pasakhale kubwebweta.
e) Pasakhale kuwonekera kwa chitsulo chapansi popanda zida zapansi kusweka.
4. Pamene adhesion ndi osauka, muyenera kuphunzira kusiyanitsa malo a peeled wosanjikiza. Mutha kugwiritsa ntchito microscope ndi X-RAY kuyesa makulidwe a zokutira zopindika kuti mudziwe malo ogwirira ntchito ndi vuto.
3. Electroplating mankhwala kuyendera-solderability anayendera
1.Solderability ndi ntchito yofunikira ndi cholinga cha tini-kutsogolera ndi plating plating. Ngati pali zofunikira za post-soldering, kuwotcherera bwino ndi vuto lalikulu.
2.Basic njira zoyesera solder:
1) Njira ya tini yomiza mwachindunji: Malinga ndi zojambulazo, mizani mwachindunji gawo la solder muzitsulo zofunikira ndikuviika mu ng'anjo ya malata 235. Pambuyo pa masekondi asanu, iyenera kuchotsedwa pang'onopang'ono pa liwiro la 25MM / S. Mukachitulutsa, chiziziritsani kutentha kwanthawi zonse ndikugwiritsa ntchito maikulosikopu 10x kuti muwone ndikuweruza: malo okhala ndi malata ayenera kukhala opitilira 95%, malo okhala ndi malata ayenera kukhala osalala komanso oyera, osakanidwa ndi solder, desoldering, pinholes ndi zochitika zina, kutanthauza kuti ndi woyenerera.
2)Kukalamba kaye kenako kuwotcherera. Pazinthu zomwe zili ndi zofunikira zapadera pamalo ena amphamvu, zitsanzozo ziyenera kukhala zaka 8 kapena 16 pogwiritsa ntchito makina oyesa ukalamba asanayambe kuyezetsa kuti adziwe momwe zinthu zimagwirira ntchito m'malo ovuta. Welding ntchito.
4. Electroplating mankhwala kuyendera-mawonekedwe kuyendera
1.Kuyang'ana maonekedwe ndi chinthu chofunika kwambiri choyang'ana pa electroplating inspection. Kuchokera pamawonekedwe, titha kuwona kuyenerera kwa njira ya electroplating ndi kusintha komwe kungachitike mu njira ya electroplating. Makasitomala osiyanasiyana ali ndi zofunikira zosiyanasiyana pakuwoneka. Malo onse okhala ndi ma electroplated ayenera kuyang'aniridwa ndi maikulosikopu nthawi zosachepera 10. Kwa zolakwika zomwe zakhala zikuchitika, kukula kwake kumakhala kothandiza kwambiri kusanthula chomwe chayambitsa vutoli.
2. Njira zoyendera:
1). Tengani chitsanzocho ndikuchiyika pansi pa maikulosikopu ya 10x, ndikuchiunikira chokwera ndi nyali yoyera yokhazikika:
2). Yang'anani momwe zinthu zilili pamwamba pa chinthucho kudzera m'maso.
3. Njira yachiweruzo:
1). Mtundu uyenera kukhala wofanana, wopanda mtundu wakuda kapena wopepuka, kapena ndi mitundu yosiyana (monga yakuda, yofiira, kapena yachikasu). Pasakhale kusiyana kwakukulu kwamitundu pakuyika golide.
2). Musalole zinthu zachilendo (tsitsi, fumbi, mafuta, makhiristo) kuti zimamatire
3). Iyenera kukhala yowuma ndipo sayenera kuipitsidwa ndi chinyezi.
4). Kusalala bwino, popanda mabowo kapena particles.
5). Sipayenera kukhala kupanikizika, zokwawa, zokwawa ndi zochitika zina zopindika komanso kuwonongeka kwa magawo opakidwa.
6). Chigawo chapansi sichiyenera kuwululidwa. Ponena za maonekedwe a tini-kutsogolera, ochepa (osapitirira 5%) maenje ndi maenje amaloledwa malinga ngati sizimakhudza solderability.
7). Chophimbacho sichiyenera kukhala ndi matuza, peeling kapena zomatira zolakwika.
8). Udindo wa electroplating uyenera kuchitidwa molingana ndi zojambulazo. Katswiri wa QE angasankhe kumasula muyezo moyenera popanda kukhudza ntchitoyo.
9). Pazilema zokayikitsa, mainjiniya a QE akuyenera kukhazikitsa malire ndi mawonekedwe othandizira.
5. Electroplating mankhwala kuyendera-ma CD kuyendera
Kuwunika kwazinthu zopangira ma electroplating kumafuna kuti mayendedwe opakirawo ndi olondola, ma trays oyikamo ndi mabokosi azikhala aukhondo, ndipo palibe kuwonongeka: zolembazo zimamalizidwa ndikulondola, komanso kuchuluka kwa zilembo zamkati ndi zakunja ndizofanana.
6.Electroplating mankhwala kuyendera-mchere kupopera mayeso
Mukapambana mayeso opopera mchere, pamwamba pa zigawo zosayenerera za electroplated zimasanduka zakuda ndikukhala dzimbiri lofiira. Inde, mitundu yosiyanasiyana ya electroplating idzatulutsa zotsatira zosiyana.
Mayeso opopera amchere a zinthu za electroplating amagawidwa m'magulu awiri: imodzi ndi mayeso okhudzana ndi chilengedwe; ina ndi yokumba inapita patsogolo kayeseleledwe mchere kutsitsi chilengedwe mayeso. Kuyesa kwachilengedwe koyerekeza ndi kugwiritsa ntchito zida zoyesera ndi malo enaake - chipinda choyezera chopopera mchere, kugwiritsa ntchito njira zopangira m'malo ake kuti apange malo opopera mchere kuti ayese kukana kukana kwa kutsitsi kwa mchere komanso mtundu wa mankhwala. .
Mayeso oyeserera opopera mchere amaphatikiza:
1) Mayeso osalowerera ndale (mayeso a NSS) ndiye njira yoyamba yoyeserera ya dzimbiri yomwe ili ndi gawo lalikulu kwambiri logwiritsa ntchito. Imagwiritsa ntchito 5% sodium chloride salt solution, ndipo pH ya yankho imasinthidwa kukhala yosalowerera ndale (6 mpaka 7) ngati njira yopopera. Kutentha kwa mayeso onse ndi 35 ℃, ndipo mlingo wa sedimentation wa mchere uyenera kukhala pakati pa 1 ~ 2ml/80cm?.h.
2) Mayeso opopera mchere wa acetate (mayeso a ASS) amapangidwa pamaziko a mayeso opopera amchere osalowerera ndale. Imawonjezera glacial acetic acid ku 5% sodium chloride solution kuti muchepetse pH ya yankho mpaka pafupifupi 3, kupangitsa yankho kukhala acidic, ndipo kutsitsi kwa mchere kumasinthanso kuchoka ku kupopera mchere wosalowerera kupita ku acidic. Mlingo wake wa dzimbiri ndi pafupifupi 3 nthawi mwachangu kuposa mayeso a NSS.
3) Kuyeza kwa mchere wamkuwa kumathamanga kwa acetate salt spray test (CASS test) ndi kuyesa kwadzidzidzi kwa mchere wamchere komwe kunachitika posachedwa kunja. Kutentha kwa mayeso ndi 50°C. Kachulukidwe kakang'ono ka mchere wamkuwa-copper chloride amawonjezeredwa ku njira ya mchere kuti apangitse dzimbiri mwamphamvu. Mlingo wake wa dzimbiri ndi pafupifupi nthawi 8 kuposa mayeso a NSS.
Zomwe zili pamwambazi ndizomwe zimayendera ndi njira zowunikira zinthu zopangidwa ndi electroplated, kuphatikiza kuyang'anira makulidwe a filimu ya electroplated, kuyang'anira zomatira, kuyang'anira weldability, kuyang'anira mawonekedwe, kuyang'anira ma CD, kuyesa kutsitsi kwa mchere,
Nthawi yotumiza: Jun-05-2024