Daim ntawv thov ntawm ABS yas electroplating ntawm hluav taws xob cua sov raj hauv cov txheej txheem yas electroplating tau dhau los ua ntau dua.
Tso lus
Daim ntawv thov ntawm ABS yas electroplating ntawm hluav taws xob cua sov raj hauv cov txheej txheem yas electroplating tau dhau los ua ntau dua.
Nyob rau hauv xyoo tas los no, yas electroplating tau dav siv nyob rau hauv hniav electroplating ntawm yas qhov chaw. ABS yas yog hom yas electroplating uas siv dav tshaj plaws. ABS yas yog ternary copolymer ntawm acrylonitrile (A), butadiene (B), thiab styrene (S). Rau electroplating qib ABS yas, cov ntsiab lus ntawm butadiene muaj feem cuam tshuam rau electroplating, thiab feem ntau yuav tsum tau tswj ntawm 18 feem pua thiab 23 feem pua. Cov ntsiab lus siab butadiene, zoo flowability, yooj yim tsim, thiab zoo adhesion rau txheej. Vim tias ABS tsis yog-conductive, ib txheej conductive yuav tsum tau txuas ua ntej electroplating. Kev tsim cov txheej txheem conductive yuav tsum muaj ob peb kauj ruam xws li coarsening, neutralization, rhiab heev, ua kom muaj zog, thiab tshuaj plating, uas yog qhov nyuaj tshaj li cov hlau electroplating thiab muaj teeb meem hauv kev tsim khoom. Peb pib los ntawm cov txheej txheem ntawm ABS yas electroplating, soj ntsuam cov laj thawj thiab pom cov kev daws teeb meem.
1. Cov teeb meem thiab kev daws teeb meem
1.1 Plating qhov chaw yog nquag ntab thiab thaj chaw nyob rau hauv kev sib cuag nrog cov cuab yeej dai yog qhov ua rau kub hnyiab vim qhov tshwj xeeb ntawm cov yas me me, uas ua rau nws yooj yim rau ntab hauv cov tshuaj. Cov duab ntawm lub teeb yog zoo li ib tug me me disc, nrog lub puab nto recessed thiab ob lub qhov me me ntawm cov npoo. Thaum xub thawj, tsuas yog ib qho tooj liab siv los tuav ob lub qhov me me rau electroplating. Vim qhov tso pa tawm thaum lub sij hawm electroplating, lub teeb ci ntsa iab yog yooj yim detached los ntawm tooj liab hlau, thiab tooj liab hlau kuj yog lub teeb txaus los raus lub teeb ci hauv kev daws teeb meem. Tom qab ntawd, cov khoom hnyav tau txuas nrog cov hlau tooj liab los daws qhov teeb meem ntab. Qhov chaw sib cuag ntawm cov hlau tooj liab thiab lub teeb ci yog hlawv thiab cov yas raug, uas yog tshwm sim los ntawm kev ua tsis zoo. Yuav kom daws tau qhov teeb meem ntawm workpiece floating thiab conductivity, peb tau tsim ib tug tshwj xeeb fixture. Lub clamp muaj qee qhov hnyav thiab yuav tsis ntab thaum lub teeb ci ntsa iab. Tom qab ntawd, ob daim phiaj dav dav yog clamped rau hauv lub qhov ntawm lub teeb ci kom sib npaug ntawm qhov tam sim no thiab tiv thaiv cov ntsiab lus sib cuag los ntawm kev kub hnyiab.
Thaum lub sij hawm txheej txheem ntawm 1.2 lampshade tshuaj tooj liab plating, npuas tshwm, thiab tom qab electroplating, cov npuas yuav loj dua thiab tuaj yeem nqa tau. Cov txheej txheem ntawm cov yas electroplating yog raws li nram no: degreasing → dej ntxuav → roughening → dej ntxuav → rhiab heev → kais dej ntxuav → deionized dej ntxuav → activation → dej ntxuav → tshuaj tooj liab plating → dej ntxuav → electroplating → dej ntxuav → ziab. Los ntawm cov saum toj no, nws tuaj yeem pom tau tias txhua kauj ruam ua ntej chemical tooj liab plating uas ntsib teeb meem tuaj yeem ua rau blistering. Muaj ntau qhov laj thawj rau kev ua kom tsis zoo, thiab cov feem ntau uas muaj teeb meem yog cov txheej txheem tshem tawm cov roj thiab cov txheej txheem coarsening. Kev tshem tawm cov roj tsis tiav tuaj yeem ua rau tev thiab tshem tawm. Lub teeb pom kev siv tshuaj degreasing (cov khoom yas tsis haum rau degreasing nrog cov kuab tshuaj organic). Thaum lub sijhawm ua haujlwm, qhov kub nce mus rau 65-70 degree thiab cov khoom ua haujlwm txuas ntxiv mus txog thaum tsis muaj cov tee dej dai tom qab ntxuav. Coarsening yog txheej txheem tseem ceeb hauv ABS yas electroplating. Tsis txaus coarsening thiab txo qis zog; Kev coarsening ntau dhau yuav ua rau lub qhov loj dua thiab deformed, thiab lub zog sib txuas kuj yuav txo qis. Vim qhov tsis ruaj tsis khov divalent tin nyob rau hauv cov tshuaj rhiab heev, cov tshuaj rhiab heev yog qhov ua tsis tiav. Yog tias tsis kho, nws tuaj yeem ua rau ua kom tsis ua haujlwm. Kev ua kom tsis txaus tuaj yeem ua rau tsis tiav ntawm cov tshuaj txheej txheej; Txawm li cas los xij, kev ua kom ntau dhau tuaj yeem ua rau txo qis ntawm cov hlau ua haujlwm ntau dhau ntawm qhov chaw, ua rau cov txheej txheem ntawm cov yeeb yaj kiab tsis tu ncua thiab txo qis hauv kev sib khi quab yuam.
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