Copper sulfate electroplating inotora nzvimbo yakakosha zvikuru mukati PCB electroplating. Hunhu hweasidhi yemhangura electroplating inokanganisa zvakananga kunaka uye inoenderana nemakina zvivakwa zve electroplated mhangura layer yePCB board, uye ine imwe mhedzisiro pakugadzirisa kunotevera. Naizvozvo, nzira yekudzora asidhi mhangura electroplating Hunhu hwePCB chikamu chakakosha chePCB electroplating, uye iriwo imwe yemaitiro akaoma kune akawanda mafekitori makuru kudzora maitiro. Kubva pamakore ane ruzivo mu electroplating uye technical services, munyori pakutanga anopfupisa zvinotevera, achitarisira kukurudzira iyo electroplating indasitiri muPCB indasitiri.Matambudziko akajairika muasidhi copper electroplating anonyanya kusanganisira zvinotevera:

1. Rough plateing; 2. Kuisa (board surface) zvimedu zvemhangura; 3. Gomba remagetsi; 4. Kumusoro kwebhodhi kwakachena kana kusaenzana muvara.

Mukupindura kumatambudziko ari pamusoro apa, dzimwe mhedziso dzakaitwa, uye mamwe mapfupi ekuongorora mhinduro uye matanho ekudzivirira akaitwa.

Rough electroplating: Kazhinji kona yebhodhi ine hutsinye, mazhinji ayo anokonzerwa neiyo electroplating ikozvino yakakura kwazvo. Iwe unogona kuderedza ikozvino uye kutarisa ikozvino kuratidzwa nekadhi mita yezvisina kunaka; bhodhi rose rakashata, kazhinji kwete, asi munyori akambosangana naro kamwe chete panzvimbo yemutengi. Yakazoonekwa gare gare kuti tembiricha muchando yakanga yakaderera uye zviri mukati meinopenya zvakanga zvisina kukwana; uye dzimwe nguva mamwe mapuranga akapera basa akagadziridzwa haana kubatwa zvakachena, uye mamiriro akafanana akaitika.

Kuisa zvimedu zvemhangura pabhodhi repamusoro: Pane zvinhu zvakawanda zvinokonzera kugadzirwa kwemhangura yemhangura pabhodhi pamusoro. Kubva pakunyura kwemhangura kusvika kune yese nzira yekuchinjisa maitiro, zvinogoneka kune electroplating mhangura paPCB board pachayo.

Zvimedu zvemhangura pabhodhi repamusoro zvinokonzerwa nekunyudzwa kwemhangura zvinogona kukonzerwa nechero nhanho yekunyudza yemhangura. Alkaline degreasing haizokonzeri hutsinye mubhodhi repamusoro asiwo hukasha mumakomba kana kuoma kwemvura kwakakwira uye guruva rekuchera rakawandisa (kunyanya bhodhi rine mativi maviri harina kubviswa). Iyo yemukati roughness uye shoma-yakafanana tsvina pabhodhi yepamusoro inogonawo kubviswa; kune kunyanya nyaya dzakawanda dze micro-etching: mhando yemicro-etching agent hydrogen peroxide kana sulfuric acid yakashata, kana ammonium persulfate (sodium) ine tsvina yakawandisa, kazhinji Inokurudzirwa kuti inofanira kunge iri CP. giredhi. Pamusoro pegiredhi reindasitiri, kumwe kutadza kwemhando kunogona kukonzerwa; yakawandisa yakawandisa mhangura mubhavhu-etching yekugezera kana tembiricha yakaderera inogona kukonzera kunaya kunononoka kwecopper sulfate makristasi; uye mvura yekugeza yakasviba uye yakasvibiswa.

Mazhinji ekugadzirisa mhinduro inokonzerwa nekusvibiswa kana kusagadziriswa kusina kunaka. Semuenzaniso, pombi yekusefa inodonha, mvura yekugezera ine yakaderera chaiyo giravhiti, uye iyo yemhangura yakawandisa (iyo activation tank yakashandiswa kwenguva yakareba, anopfuura makore matatu), iyo inoburitsa zvinhu zvakamiswa mubhavhu. . Kana kusachena colloid, adsorbed pamusoro ndiro pamusoro kana gomba rusvingo, nguva ino achaperekedzwa roughness mugomba. Kunyunguduka kana kukurumidza: mhinduro yekugezesa yakarebesa kuita seyakasviba, nekuti yakawanda yekunyungudika inogadziriswa nefluoroboric acid, zvekuti inorwisa girazi fiber muFR-3, zvichiita kuti silicate uye calcium munyu mubhati isimuke. . Mukuwedzera, kuwedzera kwemhangura yemhangura uye kuwanda kwetini yakanyunguduka mubhati kuchaita kuti kugadzirwa kwemhangura yemhangura pabhodhi repamusoro. Iyo mhangura inonyura tangi pachayo inonyanya kukonzerwa nekunyanyisa kuita kwetangi mvura, guruva riri mumhepo rinobvongodza, uye huwandu hukuru hwezvakamiswa zvimedu zvakasimba mumvura yetangi. Iwe unogona kugadzirisa maitiro ekugadzirisa, kuwedzera kana kutsiva iyo air filter element, kusefa tangi rose, etc. Inoshanda mhinduro. Iyo dilute acid tangi yekuchengeta kwechinguva ndiro yemhangura mushure mekunge mhangura yaiswa, iyo tangi mvura inofanirwa kuchengetwa yakachena, uye tangi mvura inofanira kutsiviwa nenguva kana yakasviba.

Iyo nguva yekuchengetera yemhangura yekunyudza bhodhi haifanirwe kunge yakarebesa, zvikasadaro iyo bhodhi pamusoro ichave nyore oxidized, kunyangwe mune acid mhinduro, uye iyo oxide firimu ichanyanya kunetsa kurasa mushure meiyo oxidation, kuitira kuti zvimedu zvemhangura zvibudiswe pa bhodhi pamusoro. Zvimedu zvemhangura zviri pamusoro pebhodhi zvakakonzerwa nekunyura kwemhangura kwataurwa pamusoro, kunze kweiyo oxidation yepasi, inowanzogoverwa pamusoro pebhodhi zvakanyanya kufanana uye nekusimba kwakasimba, uye kusvibiswa kunogadzirwa pano kuchakonzera zvisinei kuti conductive kana kwete. Paunenge uchibata nekugadzirwa kwemhangura zvidimbu pamusoro peiyo electroplated mhangura ndiro yePCB system, mamwe madiki mabhodhi ebvunzo anogona kushandiswa kugadzirisa zvakasiyana kuenzanisa uye kutonga. Kune iyo-saiti yakashata bhodhi, bhurashi rakapfava rinogona kushandiswa kugadzirisa dambudziko; Iyo giraidhi yekufambisa maitiro: kune yakawandisa glue mukusimudzira (yakaonda kwazvo Iyo yakasara firimu inogona zvakare kuputirwa nekuputirwa panguva ye electroplating), kana kuti haina kucheneswa mushure mekuvandudzwa, kana ndiro inoiswa kwenguva yakareba mushure mekunge patani yatamiswa, zvichiita kuti pave nemhando dzakasiyana-siyana dzeoxidation pamusoro peplate pamusoro, kunyanya kucheneswa kwakashata kweplate pamusoro Kana kusvibiswa kwemhepo munzvimbo yekuchengetedza kana kuchengetedza workshop kunorema. Mhinduro ndeyekusimbisa kushambidza kwemvura, kusimbisa chirongwa uye kuronga purogiramu, uye kusimbisa iyo acid degreasing intensity.

Iyo asidhi yemhangura ye electroplating tank pachayo, panguva ino, pre-kurapwa kwayo kazhinji haikonzeri zvimedu zvemhangura pabhodhi, nekuti zvisiri-conductive zvimedu zvinogona kunyanya kukonzera kuvuza kana makomba pamusoro pebhodhi. Zvikonzero zvezvikamu zvemhangura zviri pamusoro peplateti zvakakonzerwa nehumburumbira yemhangura zvinogona kupfupikiswa muzvikamu zvakati wandei: kuchengetedza kwegedhi paramita, kugadzirwa uye kushanda, zvinhu uye maitiro ekugadzirisa. Kuchengetedzwa kwenzvimbo dzekugezesa kunosanganisira yakawandisa sulfuric acid yemukati, yakadzikira mhangura yemukati, yakadzika kana yakanyanya kupisa tembiricha yekugezera, kunyanya mumafekitori asina tembiricha inodzorwa nekutonhodza masisitimu, izvi zvinokonzeresa kuti density yemhando yekugezesa iderere, maererano ne zvakajairika kugadzira maitiro Kushanda, hupfu hwemhangura inogona kugadzirwa mubhati uye yakasanganiswa mubhati;

Panyaya yekushanda kwekugadzira, yakawandisa ikozvino, isina kunaka splint, isina pinch mapoinzi, uye ndiro yakadonhedzwa mutangi ichipokana neanode kunyungudika, nezvimwe zvinokonzeresa kuwanda kwezvino mune mamwe mahwendefa, zvichikonzera hupfu hwemhangura, kuwira mumvura yetangi. , uye zvishoma nezvishoma zvichikonzera kukanganisa kwemhangura; Chimiro chezvinyorwa chinonyanya phosphorus yehuwandu hwephosphor copper angle uye kufanana kwekugoverwa kwephosphorus; iyo yekugadzira nekugadzirisa chikamu inonyanya kugadzirisa hukuru-hukuru, uye kona yemhangura inowira mutangi kana kona yemhangura yawedzerwa, kunyanya panguva yekugadzirwa kukuru, anode kuchenesa uye anode kuchenesa bhegi, akawanda mafekitori Izvo hazvina kubatwa zvakanaka. , uye kune dzimwe njodzi dzakavanzika. Nokuda kwekugadzirisa bhora remhangura, nzvimbo yacho inofanira kucheneswa, uye nzvimbo itsva yemhangura inofanira kuva micro-etched ne hydrogen peroxide. Iyo anode bhegi inofanirwa kunyikwa ne sulfuric acid hydrogen peroxide uye lye zvakateerana kuchenesa, kunyanya bhegi reanode rinofanirwa kushandisa 5-10 micron gap PP sefa bag. .

Electroplating magomba: Kuremara uku kunokonzeresa maitiro mazhinji, kubva pakunyura kwemhangura, kuchinjisa patani, kusvika pakurapa kwe electroplating, copper plating uye tin plating. Chikonzero chikuru chekunyura kwemhangura ndiko kucheneswa kwakashata kwebhasikiti inonyura yemhangura yakaturika kwenguva yakareba. Munguva ye microetching, mvura inosvibisa ine palladium mhangura inodonha kubva mudengu rakarembera pamusoro pebhodhi, zvichikonzera kusvibiswa. Makomba. Iyo magirafu ekufambisa maitiro anonyanya kukonzerwa nekusagadzikana kwekugadzirisa michina uye kugadzira kuchenesa. Pane zvikonzero zvakawanda: bhurashi roller inosveta tsvimbo yemuchina wekukwesha inosvibisa glue, nhengo dzemukati dzemhepo banga muchikamu chekuomeswa dzakaomeswa, kune guruva rine mafuta, nezvimwewo, bhodhi repamusoro rinotorwa kana guruva. inobviswa isati yadhindwa. Zvisizvo, muchina wekugadzira hauna kuchena, kugezeswa mushure mekuvandudzwa hakuna kunaka, defoamer ine silicon inosvibisa bhodhi pamusoro, etc. Pre-kurapwa kwe electroplating, nokuti chikamu chikuru chemvura yekugezesa ndeye sulfuric acid, kana iine acidic. degreasing agent, micro-etching, prepreg, uye mhinduro yekugeza. Nokudaro, kana kuoma kwemvura kwakakwirira, ichaita seyakasviba uye inosvibisa bhodhi pamusoro; uyezve, mamwe makambani ane urombo encapsulation of hangers. Kwenguva yakareba, ichaonekwa kuti iyo encapsulation ichanyunguduka uye inopararira mutangi usiku, ichisvibisa tangi mvura; idzi dzisiri-conductive particles dzakashongedzwa pamusoro pebhodhi, izvo zvinogona kukonzera electroplating makomba emadhigirii akasiyana kune inotevera electroplating.

Iyo asidi yemhangura ye electroplating tank pachayo inogona kuva nezvinhu zvinotevera: iyo air blast tube inotsauka kubva panzvimbo yepakutanga, uye mhepo inoputika zvisina kufanana; pombi yekusefa inobvinza kana mvura inopinza iri padyo nemhepo inoputika chubhu yekufemedza mweya, ichiburitsa mabhuru emhepo akanaka, anoiswa pamusoro pebhodhi kana kumucheto kwemutsara. Kunyanya padivi pemutsara wakatwasuka uye pakona yemutsetse; imwe pfungwa inogona kunge iri kushandiswa kwepasi pekotoni cores, uye kurapwa hakusi kwakakwana. Iyo anti-static kurapwa mumiririri inoshandiswa mukotoni yepakati yekugadzira maitiro inosvibisa mvura yekugezesa uye inokonzeresa kuvuza kweplating. Iyi mamiriro anogona kuwedzerwa. Furidzira, chenesa furo remvura panguva. Mushure mekunge cotton core yakanyoroveswa muasidhi uye alkali, ruvara rwebhodhi repamusoro rakachena kana kuti harina kuenzana: kunyanya nekuda kwekupolishisa ajenti kana matambudziko ekugadzirisa, uye dzimwe nguva inogona kunge iri yekuchenesa matambudziko mushure mekuderera kweasidhi. Micro-etching dambudziko.

Kusarongeka kwechinhu chinopenya muhumburumbira yemhangura, kusvibiswa kwakakomba kweorganic, uye tembiricha yekugezesa yakawandisa inogona kukonzerwa. Acdic degreasing kazhinji haina matambudziko ekuchenesa, asi kana mvura iine acid shoma pH kukosha uye yakawanda organic zvinhu, kunyanya kudzokorodza kugeza mvura, zvinogona kukonzera kusacheneswa uye kusaenzana micro-etching; micro-etching inonyanya kutarisisa yakawandisa micro-etching agent yemukati Yakaderera, yakakwira mhangura yemukati mune micro-etching mhinduro, yakadzika yekugezera tembiricha, nezvimwewo, zvinokonzeresa kusaenzana micro-etching pabhodhi pamusoro; uyezve, mvura yekuchenesa mvura yakashata, nguva yekugeza yakareba zvishoma kana kuti pre-soak acid solution yakasvibiswa, uye bhodhi repamusoro rinogona kusvibiswa mushure mekurapa. Pachava neoxidation shoma. Panguva ye electroplating mubhati yemhangura, nokuti iine acidic oxidation uye ndiro inopomerwa mubhati, iyo oxide yakaoma kubvisa, uye inokonzerawo kusaenzana kwemavara eplate pamusoro; uyezve, iyo ndiro yepamusoro inosangana nehomwe yeanode, uye inode conduction haina kuenzana. , Anode passivation uye mamwe mamiriro anogona kukonzera kukanganisa kwakadaro.