Nyocha nke ngwaahịa ọnụ electroplated bụ ọrụ dị mkpa mgbe emechara electroplating. Naanị ngwaahịa electroplated na-agafe nyocha ahụ nwere ike inyefe ya na usoro ọzọ maka ojiji.
Ọtụtụ mgbe, ihe ndị a na-enyocha maka ngwaahịa elektrọn bụ: ọkpụrụkpụ ihe nkiri, nrapanye, ikike ịcha ihe, ọdịdị, nkwakọ ngwaahịa, na nnwale ịgba nnu. Maka ngwaahịa nwere ihe pụrụ iche chọrọ na eserese, enwere ule porosity (30U”) maka ọla edo na-eji usoro nitric acid vapor, ngwaahịa nickel palladium-plated (iji usoro gel electrolysis) ma ọ bụ ule gburugburu ebe obibi ndị ọzọ.
1. Electroplating ngwaahịa nnyocha-ihe nkiri ọkpụrụkpụ nnyocha
1.Film ọkpụrụkpụ bụ isi ihe maka nyocha electroplating. Ngwá ọrụ bụ isi eji eme ihe bụ mita ọkpụrụkpụ ihe nkiri fluorescent (X-RAY). Ụkpụrụ bụ iji X-ray na-eme ka ihe mkpuchi na-egbuke egbuke, na-anakọta ụdị ume ike nke mkpuchi ahụ weghachite, ma chọpụta oke na nhazi nke mkpuchi ahụ.
2. Akpachara anya mgbe ị na-eji X-RAY:
1) Spectrum calibration na-achọrọ oge ọ bụla ịgbanyere kọmputa
2) Na-eme mgbanwe ntutu isi kwa ọnwa
3) Gold-nickel calibration kwesịrị ime opekempe otu ugboro n'izu
4) Mgbe ị na-atụle, a ga-ahọrọ faịlụ ule dị ka ígwè eji eme ihe na ngwaahịa ahụ.
5) Maka ngwaahịa ọhụrụ na-enweghị faịlụ nyocha, ekwesịrị ịmepụta faịlụ ule.
3. Ihe faịlụ ule pụtara:
Ọmụmaatụ: Au-Ni-Cu(100-221 sn 4%@0.2 cfp
Au-Ni-Cu——Nwale ọ̀tụ̀tụ̀ ntanye nke nickel na mgbe ahụ ịtinye ọla edo na mkpụrụ ọla kọpa.
(100-221 sn 4%——-AMP ihe onwunwe ọla kọpa nọmba ọla kọpa nwere 4% tin)
2. Electroplating ngwaahịa nyocha-adhesion nnyocha
Nyocha adhesion bụ ihe nyocha dị mkpa maka ngwaahịa electroplating. Adhesion na-adịghị mma bụ ntụpọ a na-ahụkarị na nyocha ngwaahịa electroplating. A na-enwekarị ụzọ nyocha abụọ:
1.Bending Method: Nke mbụ, jiri mpempe ọla kọpa nke nwere oke nha dị ka ebe a na-achọpụta ihe achọrọ iji kpoo ebe a ga-ehulata, jiri ngwa imi dị larịị na-ehulata ihe nlele ahụ ruo ogo 180, ma jiri microscope hụ ma ọ dị peeling ma ọ bụ peeling nke mkpuchi n'elu ehulata.
Usoro 2.Tape: Jiri teepu 3M jidesie ike n'elu ihe nlele a ga-anwale, kwụ ọtọ na ogo 90, wepụ ngwa ngwa teepu ahụ, ma hụ ihe nkiri ígwè na-apụ na teepu. Ọ bụrụ na ịnweghị ike iji anya gị hụ nke ọma, ịnwere ike iji microscope 10x hụ.
3. Mkpebi nsonaazụ:
a) Agaghị enwe ọdịda nke ntụ ntụ ígwè ma ọ bụ ịrapara teepu patching.
b) E kwesịghị ikpochapụ nke mkpuchi ọla.
c) Ọ bụrụhaala na ihe mgbakwasị ụkwụ adịghị agbaji, ọ gaghị enwe nnukwu mgbawa ma ọ bụ peeling mgbe ọ gbasịrị.
d) E kwesịghị inwe afụ.
e) E kwesịghị ikpughe nke ígwè dị n'okpuru ebe a na-agbajighị ihe ndabere.
4. Mgbe adhesion na-adịghị mma, ị kwesịrị ịmụta ịmata ọdịiche dị na ebe oyi akwa peeled. Ị nwere ike iji microscope na X-RAY nwalee ọkpụrụkpụ nke mkpuchi peeled iji chọpụta ebe ọrụ nwere nsogbu ahụ.
3. Electroplating ngwaahịa nnyocha-solderability nnyocha
1.Solderability bụ isi ọrụ na nzube nke tin-lead na tin plating. Ọ bụrụ na e nwere post-soldering usoro chọrọ, adịghị mma ịgbado ọkụ bụ a oké njọ ntụpọ.
2.Basic ụzọ nke solder ule:
1) Usoro tin nmikpu ozugbo: Dị ka eserese ndị a si dị, gbanye akụkụ ahụ na-ere ahịa ozugbo n'ime mmiri achọrọ wee tinye ya n'ime ọkụ ọkụ dị ogo 235. Mgbe sekọnd ise gachara, ekwesịrị iji nwayọ wepụta ya na ọsọ nke ihe dịka 25MM/S. Mgbe ị wepụsịrị ya, mee ka ọ dị jụụ ka ọ dị jụụ ma jiri microscope 10x hụ ma kpee ikpe: mpaghara tinned kwesịrị ịdị karịa 95%, ebe a na-agbanye ya kwesịrị ịdị nro ma dị ọcha, ọ dịghịkwa ihe ọ bụla na-ere ahịa, nbibi, pinholes na ndị ọzọ phenomena, nke pụtara na ọ ruru eru.
2) Aging mbụ na mgbe ahụ ịgbado ọkụ. Maka ngwaahịa ndị nwere ihe pụrụ iche chọrọ n'elu ụfọdụ ike, ihe nlele ahụ kwesịrị ịka nká maka awa 8 ma ọ bụ 16 site na iji igwe nyocha ịka nká tupu ule ịgbado ọkụ iji chọpụta arụmọrụ nke ngwaahịa ahụ na gburugburu ojiji siri ike. Ịgbado ọkụ arụmọrụ.
4. Electroplating ngwaahịa nyocha-ọdịdị nyocha
Nyocha 1.Apearance bụ isi ihe nyocha nke nyocha electroplating. Site na ọdịdị ahụ, anyị nwere ike ịhụ ihe kwesịrị ekwesị nke ọnọdụ usoro electroplating na mgbanwe nwere ike na ngwọta electroplating. Ndị ahịa dị iche iche nwere ihe dị iche iche chọrọ maka ọdịdị. Ekwesịrị ka ejiri microscope hụ ọdụ niile nwere elektrọn opekata mpe 10 ka ukwuu. Maka ntụpọ ndị merela, ka mmụba ahụ na-abawanye, otú ahụ ka ọ na-enye aka karị iji nyochaa ihe kpatara nsogbu ahụ.
Usoro nyocha 2.
1). Were nlele ahụ wee tinye ya n'okpuru microscope 10x, ma were isi iyi ọkụ na-acha ọcha mee ya n'ụzọ kwụ ọtọ:
2). Lelee ọnọdụ elu nke ngwaahịa site na anya anya.
3. Usoro ikpe:
1). Agba kwesịrị ịdị otu, na-enweghị agba ọchịchịrị ma ọ bụ ọkụ ọ bụla, ma ọ bụ nwere agba dị iche iche (dịka ịji ojii, ọbara ọbara ma ọ bụ odo). E kwesịghị inwe nnukwu agba dị iche na plating ọla edo.
2). Ekwela ka ihe ọ bụla si mba ọzọ (flakes ntutu, uzuzu, mmanụ, kristal) rapara na ya
3). Ọ ga-abụrịrị nkụ, ọ gaghịkwa eji mmiri metọọ ya.
4). Ezigbo ire ụtọ, enweghị oghere ma ọ bụ irighiri ihe.
5). E kwesịghị inwe nrụgide, ncha, ncha na ihe nrụrụ ndị ọzọ yana mmebi nke akụkụ ndị ahụ plated.
6). E kwesịghị ikpughe oyi akwa ala. Banyere ọdịdị nke tin-lead, a na-ahapụ olulu ole na ole (ọ bụghị ihe karịrị 5%) ma ọ bụrụhaala na ọ naghị emetụta ire ere.
7). Ihe mkpuchi ahụ ekwesịghị inwe ọnya, peeling ma ọ bụ nrapado na-adịghị mma.
8). A ga-eme ọnọdụ electroplating dị ka eserese ahụ si dị. Onye injinia QE nwere ike kpebie ime ka ọkọlọtọ zuru ike nke ọma na-emetụtaghị ọrụ ahụ.
9). Maka ntụpọ ọdịdị a na-enyo enyo, onye injinia QE kwesịrị ịtọ oke nlele na ụkpụrụ inyeaka ọdịdị.
5. Electroplating ngwaahịa nyocha-nkwakọ ngwaahịa
Nnyocha nkwakọ ngwaahịa electroplating na-achọ ka ntụziaka nkwakọ ngwaahịa ziri ezi, trays na igbe dị ọcha ma dị mma, ọ dịghịkwa mmebi ọ bụla: a na-emecha akara ndị ahụ na nke ziri ezi, na ọnụ ọgụgụ nke akara n'ime na mpụga na-agbanwe agbanwe.
6.Electroplating ngwaahịa nyocha-nnu ịgba ule
Mgbe ịgafe ule ịgba nnu, elu akụkụ electroplated na-erughị eru ga-atụgharị oji wee mepụta nchara na-acha uhie uhie. N'ezie, ụdị electroplating dị iche iche ga-arụpụta ihe dị iche iche.
A na-ekewa ule ịgba nnu nke ngwaahịa electroplating ụzọ abụọ: otu bụ ule mkpughe gburugburu ebe obibi; nke ọzọ bụ nyocha gburugburu ebe mgbasa nnu simulated emebere. The wuru simulated nnu ịgba gburugburu ule bụ iji a ule akụrụngwa na a ụfọdụ olu ohere - a nnu ịgba ule ụlọ, na-eji wuru ụzọ na ya olu ohere ike a nnu ịgba gburugburu iji chọpụta nnu ịgbasa corrosion eguzogide arụmọrụ na àgwà nke. ngwaahịa. .
Nnwale ịgbasa nnu arụrụ arụ ọrụ gụnyere:
1) Nnwale ịgba mmiri nnu na-anọpụ iche (NSS ule) bụ usoro nnwale corrosion izizi nke izizi nwere mpaghara ngwa kachasị. Ọ na-eji ngwọta nnu sodium chloride 5%, na uru pH nke ngwọta na-edozi na ebe na-anọpụ iche (6 ruo 7) dị ka ngwọta ịgba. The ule okpomọkụ bụ niile 35 ℃, na sedimentation ọnụego nke nnu ịgba a chọrọ n'etiti 1 ~ 2ml / 80cm?.h.
2) A na-emepe nyocha nnu nnu acetate (Nnwale ASS) na ndabere nke nnwale ịgba nnu na-anọpụ iche. Ọ na-agbakwụnye ụfọdụ glacial acetic acid na 5% sodium chloride ngwọta iji belata pH uru ngwọta nke ihe dị ka 3, na-eme ka ngwọta ya dị acidic, na nnu nnu na-esi na ya pụta na-agbanwekwa site na nnu nnu na-anọpụ iche gaa na acidic. Ọnụego corrosion ya dị ihe dị ka ugboro atọ ngwa ngwa karịa ule NSS.
3) Nnwale nnu ọla kọpa accelerated acetate salt spray test (CASS test) bụ nnwale corrosion nnu nnu ngwa ngwa mepụtara na mba ofesi na nso nso a. Okpomọkụ nnwale bụ 50 Celsius. A na-agbakwunye obere chloride nnu ọla kọpa na ngwọta nnu iji kpalite corrosion siri ike. Ọnụego corrosion ya dị ihe dị ka okpukpu asatọ karịa nke ule NSS.
Ndị a dị n'elu bụ ụkpụrụ nyocha na ụzọ nyocha maka ngwaahịa elektrọn, gụnyere nyocha nke ọkpụrụkpụ ihe nkiri ngwaahịa elektrọn, nyocha adhesion, nyocha weldability, nyocha ọdịdị, nyocha nkwakọ ngwaahịa, nnwale ịgba nnu,
Oge nzipu: Jun-05-2024