Kuongororwa kwemagetsi emagetsi ekupedzisira ibasa rinokosha mushure mekunge electroplating yapera. Izvo chete zvigadzirwa zve electroplated zvinopfuura kuongororwa zvinogona kupihwa kune inotevera nzira yekushandisa.
Kazhinji, zvinhu zvekuongorora zvezvigadzirwa zve electroplated ndezvi: firimu ukobvu, kunamatira, kugona solder, kutaridzika, kurongedza, uye bvunzo yekupfapfaidza munyu. Kune zvigadzirwa zvine zvakakosha mudhirowa, kune porosity bvunzo (30U ") yegoridhe uchishandisa nitric acid mhute nzira, palladium-plated nickel zvigadzirwa (uchishandisa gel electrolysis nzira) kana imwe bvunzo yezvakatipoteredza.
1. Electroplating chigadzirwa chekuongorora-firimu ukobvu kuongorora
1.Film ukobvu chinhu chakakosha chekuongorora kwe electroplating. Chinhu chakakosha chinoshandiswa ndeye fluorescent firimu ukobvu mita (X-RAY). Nheyo ndeyekushandisa maX-rays kuvheneka iyo yekupfeka, kuunganidza simba remagetsi rakadzoserwa nejira, uye kuona ukobvu uye kuumbwa kwejasi.
2. Chengetedzo paunenge uchishandisa X-RAY:
1) Spectrum calibration inodiwa pese paunobatidza komputa
2) Ita crosshair calibration mwedzi wega wega
3) Goridhe-nickel calibration inofanira kuitwa kamwechete pavhiki
4) Pakuyera, faira yekuedza inofanira kusarudzwa maererano nesimbi inoshandiswa muchigadzirwa.
5) Kune zvigadzirwa zvitsva zvisina faira rekuyedza, faira rekuyedza rinofanira kugadzirwa.
3. Kukosha kwemafaira ekuedzwa:
Muenzaniso: Au-Ni-Cu(100-221 sn 4%@0.2 cfp
Au-Ni-Cu——Edza ukobvu hwenickel plating wozoisa goridhe pane substrate yemhangura.
(100-221 sn 4%——-AMP nhamba yemhangura yemhangura ine 4% tini)
2. Electroplating chigadzirwa chekuongorora-kunamatira kuongorora
Adhesion yekuongorora chinhu chinodiwa chekuongorora che electroplating zvigadzirwa. Kushata kwekunamatira ndiko kukanganisa kwakanyanya mu electroplating chigadzirwa chekuongorora. Kazhinji pane nzira mbiri dzekuongorora:
1.Bending nzira: Chekutanga, shandisa pepa remhangura rine hupamhi hwakafanana sechinodiwa chekutsvaga chigadziro chekugadzirisa nzvimbo inenge yakakotama, shandisa flat-nose pliers kuti ukotamise muenzaniso kusvika ku180 degrees, uye shandisa microscope kuti uone kana pane kusvuura kana kusvuura coating panzvimbo yakabhenda.
2.Tepi nzira: Shandisa 3M tepi kuti unamire zvakasimba kumusoro kwemuenzaniso kuti uedzwe, vertically pa 90 degrees, nokukurumidza kubvarura tepi, uye cherechedza firimu resimbi rinoputika pamatepi. Kana iwe usingakwanise kuona zvakajeka nemaziso ako, unogona kushandisa 10x microscope kuona.
3. Kutsunga kwemhedzisiro:
a) Hapafanirwe kudonha kwehupfu hwesimbi kana kunamira kwematepi ekusunga.
b) Panofanira kunge pasina kupepetwa kwesimbi.
c) Chero bedzi iyo base base isina kuputswa, hapafanirwe kuve nekutsemuka kwakakomba kana kupeuka mushure mekukotama.
d) Hapafanire kuve nekutubuka.
e) Hapafanirwe kuve nekuratidzwa kwesimbi yepasi pasina hwaro hwaro hwakaputswa.
4. Kana kunamatira kusina kunaka, unofanira kudzidza kusiyanisa nzvimbo yepeeled layer. Iwe unogona kushandisa maikorosikopu uye X-RAY kuyedza ukobvu hweiyo peeled coating kuti uone nzvimbo yebasa ine dambudziko.
3. Electroplating chigadzirwa chekuongorora-solderability chekuongorora
1.Solderability ndiro basa rinokosha uye chinangwa che-tin-lead uye tin plating. Kana paine post-soldering process zvinodiwa, urombo welding chinhu chakakomba.
2.Basic nzira dzekuyedza solder:
1) Yakananga kunyudza tin nzira: Zvinoenderana nemadhirowa, nyudza zvakananga chikamu che solder mune inodiwa flux uye uinyudze mu235-degree tin vira. Mushure memasekonzi mashanu, inofanira kutorwa zvishoma nezvishoma ichimhanya ingangoita 25MM/S. Mushure mekuibvisa, itonhodze kusvika kune yakajairika tembiricha uye shandisa 10x microscope kuti uone uye kutonga: nzvimbo yakavharwa inofanira kunge yakakura kupfuura 95%, nzvimbo ine tini inofanirwa kuve yakatsetseka uye yakachena, uye hapana kurambwa solder, desoldering, pinholes uye. zvimwe zviitiko, zvinoreva kuti inokodzera.
2)Kuchembera kwekutanga uyezve welding. Kune zvigadzirwa zvine zvakakosha zvinodikanwa pane mamwe masimba masimba, masampuli anofanirwa kuve akachembera kwemaawa masere kana gumi nematanhatu uchishandisa muchina wekuyedza kuchembera mutsindo usati waedzwa welding kuona kushanda kwechigadzirwa munzvimbo dzakaomarara dzekushandisa. Welding performance.
4. Electroplating chigadzirwa chekuongorora-chitarisiko chekuongorora
1.Kutarisa kuonekwa ndicho chinhu chekutanga chekuongorora che electroplating inspection. Kubva pakuonekwa, tinogona kuona kukodzera kwemamiriro ekugadzirisa electroplating uye kuchinja kunobvira mumhinduro ye electroplating. Vatengi vakasiyana vane zvinodiwa zvakasiyana pakuonekwa. Ese maelectroplated terminals anofanirwa kucherechedzwa nemaikorosikopu kanokwana kagumi. Nekukanganisa kwakaitika, iyo yakakura kukura, iyo inobatsira zvakanyanya kuongorora chikonzero chedambudziko.
2.Inspection matanho:
1). Tora sampuli woiisa pasi pe 10x maikorosikopu, woivhenekera wakamira nemwenje chena wakajairwa:
2). Cherechedza mamiriro epamusoro echigadzirwa kuburikidza nemaziso.
3. Nzira yekutonga:
1). Rudzi runofanira kuva yunifomu, pasina rima kana ruvara rwakajeka, kana nemavara akasiyana (sekusviba, kutsvuka, kana kutsvuka). Hapafanirwe kuve nemusiyano wakakomba weruvara mukuiswa kwegoridhe.
2). Usabvumira chero chinhu chekunze (bvudzi, guruva, mafuta, makristasi) kunamatira pairi
3). Inofanira kunge yakaoma uye haifaniri kusvibiswa nehunyoro.
4). Kutsvedzerera kwakanaka, hakuna maburi kana zvidimbu.
5). Panofanira kunge pasina kudzvanywa, kukwenya, kukwenya uye zvimwe deformation zviitiko pamwe nekukuvadzwa kweakapfava zvikamu.
6). Iyo yezasi layer haifanirwe kuburitswa pachena. Kana zviri zvekuonekwa kwe-tin-lead, mashoma (kwete kupfuura 5%) makomba nemakomba anobvumirwa chero bedzi asingakanganisi solderability.
7). Iyo yekupfekedza haifanirwe kunge ine mablistering, peeling kana kumwe kusamira zvakanaka.
8). Nzvimbo ye electroplating ichaitwa maererano nemifananidzo. Iyo QE injiniya inogona kusarudza kudzoreredza chiyero nenzira kwayo pasina kukanganisa basa.
9). Nekukanganisa kutaridzika kwekufungidzira, injinjiniya yeQE inofanirwa kuseta sampuli yekuenzanisa uye chitarisiko chekubatsira zviyero.
5. Electroplating chigadzirwa chekuongorora-kuputira kuongorora
Iyo electroplating chigadzirwa packaging yekuongorora inoda kuti nzira yekurongedza ndeyechokwadi, matireyi ekurongedza uye mabhokisi akachena uye akatsvinda, uye hapana kukuvadzwa: mavara anopedzwa uye akakwana, uye huwandu hwemukati nekunze mavara anowirirana.
6.Electroplating chigadzirwa chekuongorora-munyu wekupfapfaidza bvunzo
Mushure mekupasa muyedzo wekupfapfaidza munyu, pamusoro pezvikamu zvisina kukwana zvemagetsi zvinoshanduka kuita dema uye kuita ngura tsvuku. Ehe, mhando dzakasiyana dze electroplating dzinoburitsa mhedzisiro dzakasiyana.
Iyo munyu yekupfapfaidza bvunzo yezvigadzirwa zve electroplating yakakamurwa kuita mapoka maviri: imwe ndeye yakasikwa nharaunda exposure test; imwe yacho ndeye yekugadzira inomhanyisa simulated munyu pfapfaidzo nharaunda bvunzo. Iyo yekunyepedzera inoteedzerwa munyu yekupfapfaidza nharaunda bvunzo ndeyekushandisa yekuyedza ine imwe vhoriyamu nzvimbo - munyu yekupfapfaidza kamuri yekuyedza, kushandisa nzira dzekugadzira munzvimbo yayo yevhoriyamu kugadzira nzvimbo yekupfapfaidza munyu kuti uongorore kuita kwemunyu wekupfapfaidza corrosion uye kunaka kwe. chigadzirwa. .
Artificial simulated salt spray bvunzo dzinosanganisira:
1) Neutral munyu yekupfapfaidza bvunzo (NSS bvunzo) ndiyo yekutanga yakakwidziridza corrosion bvunzo nzira ine yakapamhama application ndima. Inoshandisa 5% sodium chloride salt solution, uye pH kukosha kwemushonga kunogadziriswa kusvika kune neutral range (6 kusvika 7) semushonga wekupfapfaidza. Tembiricha yekuyedza yese 35℃, uye mwero wekunyungudika kwemunyu wekupfapfaidza unodiwa kuva pakati pe1~2ml/80cm?.h.
2) Iyo acetate munyu yekupfapfaidza bvunzo (ASS bvunzo) inogadzirwa pahwaro hwekusarerekera munyu kupfapfaidza bvunzo. Inowedzera imwe glacial acetic acid kune 5% sodium chloride solution kuderedza pH kukosha kwemhinduro kusvika pa3, zvichiita kuti mhinduro ive acidic, uye inozobuda munyu yakapfapfaidza inoshandukawo kubva pakusarerekera munyu kupfapfaidza kuita acidic. Kuora kwayo kunokurumidza kakapetwa katatu pane bvunzo yeNSS.
3) Iyo yemhangura yemunyu yakamhanyisa acetate munyu yekupfapfaidza bvunzo (CASS bvunzo) inokurumidza munyu yekupfapfaidza corrosion test ichangobva kugadzirwa kunze kwenyika. Tembiricha yekuyedza i50°C. Chikamu chiduku chemhangura yemunyu-copper chloride inowedzerwa kune mhinduro yemunyu kuti iite zvakasimba kuora. Kuora kwayo kunosvika kasere pane yebvunzo yeNSS.
Aya ari pamusoro ndiwo maitiro ekuongorora uye nzira dzekuongorora dzezvigadzirwa zve electroplated, zvinosanganisira electroplated chigadzirwa firimu ukobvu yekuongorora, adhesion ongororo, weldability kuongorora, kutaridzika kwekutarisa, kurongedza kurongedza, munyu pfapfaidzo bvunzo,
Nguva yekutumira: Jun-05-2024