5.Micro-corrosion hauv pre-processing ntawm tooj liab nag lossis daus thiab duab electroplating
Micro-erosion yuav ua rau lub qhov to ntawm lub substrate, uas ua rau bubbling nyob ib ncig ntawm lub qhov; Qhov tsis muaj micro erosion kuj yuav ua rau tsis muaj kev sib khi quab yuam, ua rau muaj qhov tshwm sim bubbling; Yog li ntawd, kev tswj ntawm micro-corrosion yuav tsum muaj zog. Feem ntau, micro-corrosion qhov tob ntawm tooj liab nag lossis daus yog 1.5-2 micron, thiab micro-corrosion qhov tob ntawm graphic electroplating pretreatment yog 0.3-1 micron. Yog tias ua tau, nws yog qhov zoo tshaj plaws los tswj cov micro-corrosion thickness lossis corrosion tus nqi los ntawm kev tshuaj xyuas tshuaj thiab kev sim ntsuas qhov yooj yim. Raws li ib txwm muaj, qhov saum npoo ntawm micro etching yog xim ci, xim liab, tsis muaj kev xav; Yog tias cov xim tsis zoo ib yam, lossis muaj kev cuam tshuam qhia tau tias muaj kev phom sij zoo ua ntej ua haujlwm; Ua tib zoo saib xyuas kom muaj zog ntxiv; Tsis tas li ntawd, cov ntsiab lus tooj liab ntawm micro-etching tank, qhov kub thiab txias ntawm lub tank kua, lub peev xwm thauj khoom, thiab cov ntsiab lus ntawm micro-etching tus neeg saib xyuas yog txhua yam khoom yuav tsum tau them sai sai rau.
6.Kev ua haujlwm tsis zoo ntawm cov tooj liab sunk
Qee cov tooj liab lossis cov duab tom qab lub rooj tsavxwm rov ua haujlwm hauv cov txheej txheem rov ua haujlwm vim yog cov plating tsis zoo, cov txheej txheem rov ua haujlwm tsis raug lossis cov txheej txheem rov ua haujlwm micro yaig lub sij hawm tswj tsis tsim nyog lossis lwm yam laj thawj yuav ua rau qhov chaw bubbling; Lub rework ntawm sunken tooj liab phaj tuaj yeem ncaj qha reworked los ntawm pickling tsis muaj corrosion yog tias nws pom tias sunken tooj liab tsis zoo ntawm kab. Nws yog qhov zoo tshaj kom tsis txhob tshem cov roj ntxiv, micro corrosion; Rau lub phaj uas tau electrothickened, nws yuav tsum tau tam sim no micro etching da dej fading, xyuam xim rau lub sij hawm tswj, koj yuav xub siv ib los yog ob daim hlau rau roughly xam lub sij hawm fading, kom cov nyhuv fading; Tom qab plating tiav lawm, ib pab pawg ntawm cov txhuam hniav yog siv tom qab lub tshuab txhuam phaj, thiab tom qab ntawd cov tooj liab tau poob raws li cov txheej txheem ntau lawm, tab sis lub sij hawm etching yuav tsum tau halved los yog tsim nyog hloov.
7.Qhov saum npoo ntawm lub phaj yog oxidized thaum lub sij hawm tsim khoom
Yog hais tias lub phaj tooj liab oxidizes nyob rau hauv cov huab cua, nws yuav tsis tsuas ua rau tsis muaj tooj liab nyob rau hauv lub qhov, lub nto ntawm lub phaj yog ntxhib, tab sis kuj ua rau saum npoo ntawm lub phaj yog npuas; Thaum lub phaj tooj liab khaws cia rau hauv cov kua qaub ntev dhau lawm, lub phaj phaj yuav raug oxidized, thiab cov oxide zaj duab xis yog qhov nyuaj rau tshem tawm. Yog li ntawd, nyob rau hauv cov txheej txheem ntau lawm, lub phaj tooj liab yuav tsum tau ua kom lub sij hawm thickened, tsis ntev cia lub sij hawm, feem ntau nyob rau hauv 12 teev ntawm qhov tseeb kom tiav thickening tooj liab plating.
8.Qhov kev ua ntawm cov nag lossis daus yog qhov muaj zog heev
Cov ntsiab lus ntawm peb yam nyob rau hauv lub tog raj kheej tshiab los yog lub tank ntawm tooj liab nag lossis daus yog siab, tshwj xeeb tshaj yog cov ntsiab lus tooj liab siab dhau lawm, yuav ua rau cov dej ua haujlwm ntawm lub tank kua muaj zog heev, cov tshuaj tooj liab deposition yog ntxhib, hydrogen, cuprous oxide. thiab lwm yam nyob rau hauv cov tshuaj tooj liab txheej inclusions tshwm sim los ntawm ntau dhau txheej txheej lub cev tsis zoo thiab tsis zoo binding quab yuam; Cov txheej txheem hauv qab no tuaj yeem raug coj los ua kom zoo: txo cov ntsiab lus tooj liab (ntxiv cov dej ntshiab rau hauv lub tank kua), suav nrog peb yam, tsim nyog ua kom cov ntsiab lus ntawm complexing tus neeg sawv cev thiab stabilizer, tsim nyog txo qhov kub ntawm lub tank kua, thiab lwm yam.
9. Kev ntxuav tsis txaus tom qab kev txhim kho, tso lub sijhawm ntev dhau los tom qab kev txhim kho lossis hmoov av ntau dhau ntawm lub rooj cob qhia thaum hloov cov duab yuav ua rau tsis zoo ntawm lub rooj tsavxwm, thiab cov khoom siv fiber ntau tsis zoo yuav ua rau muaj teeb meem zoo.
10.Organic kuab paug, tshwj xeeb tshaj yog cov pa phem, tshwm nyob rau hauv lub electroplating tank, uas yog feem ntau yuav tshwm sim rau cov tsis siv neeg kab.
11.Ua ntej tooj liab plating, cov kua qaub tank yuav tsum tau hloov nyob rau hauv lub sij hawm. Cov kuab paug ntau dhau hauv cov kua tank lossis cov ntsiab lus tooj liab ntau dhau yuav tsis tsuas yog ua rau kev huv ntawm lub rooj tsavxwm, tab sis kuj ua rau muaj qhov tsis xws luag xws li lub rooj tsavxwm ntxhib.
12.Lub caij ntuj no, qee qhov chaw tsim khoom hauv kev tsim cov kua tank tsis muaj cua sov, tshwj xeeb tshaj yog yuav tsum tau them nyiaj rau cov txheej txheem tsim cov phaj them rau hauv lub tank, tshwj xeeb tshaj yog nrog cua nplawm plating tank, xws li tooj liab thiab npib tsib xee; Rau npib tsib xee lub tog raj kheej nyob rau lub caij ntuj no, nws yog qhov zoo tshaj kom ntxiv cov dej kub da dej ua ntej nickel plating (dej kub txog 30-40 degrees), kom ntseeg tau tias thaum ntxov deposition ntawm nickel txheej yog ntom.
Hauv cov txheej txheem tsim khoom tiag tiag, ua rau yog vim li cas ntawm lub hlwv ntawm lub rooj tsavxwm nto yog ntau heev, tus sau tuaj yeem ua qhov kev soj ntsuam luv luv nkaus xwb, qhov tshwm sim ntawm cov hlwv uas ua rau cov laj thawj sib txawv tuaj yeem tshwm sim rau cov chaw tsim khoom sib txawv ntawm cov khoom siv, cov xwm txheej tshwj xeeb yuav tsum muaj kev tshuaj xyuas tshwj xeeb, tsis tuaj yeem generalize, mechanically luam.
