Tsim thiab tsim cov khoom insoluble thiab lawv daim ntawv thov hauv kev lag luam PCB
Apr 21, 2025
Tso lus
1. Lub ntsiab lus ntawm Insoluble anodes
Thaum cov txheej txheem tam sim no dhau los ntawm cov txheej txheem electroplating, lub anode nws tus kheej tsis yaj tab sis tsuas yog undergoes ib qho kev tawm tsam oxidation. Cov anodes zoo li no tau sib sau ua ke rau raws li insoluble anodes. Cov ntaub ntawv rau insoluble anodes nyob rau hauv electroplating suav nrog cov hmoov txhuas, carbon, platinum-tantal-tantum, pleenium-plated iridium, thiab lwm tus.
Hauv Circuit Court board kev lag luam, cov ntawv thov tseem ceeb ntawm Insoluble anodes, nyiaj kho mob kub rau ammonia nitrogen thiab cod. Cov neeg siv hluav taws xob feem ntau yog HDI board tooj liab Insoluble iidium-tantum anode, uas xav tau kev tswj hwm siab dua ntawm cov teeb pom kev zoo. Tus neeg sawv cev ruaj khov ntawm lub teeb pom kev zoo thaum lub sijhawm plating muaj qhov cuam tshuam tseem ceeb ntawm kev tsim hluav taws xob.
Insoluble anode ua lub luag haujlwm ntawm kev coj ua tam sim no thaum lub sijhawm hluav taws xob, precipitating oxygen lossis oxidizing hlau ions. Insoluble anodes cuam tshuam rau da dej ua kua rau hauv cov laug cam hluav taws xob hauv ob txoj kev loj:
Thawj, Oxygen Evolution ntawm anode saum npoo ua rau ntxiv poob ntawm electroplating lub teeb pom kev. Qhov ncaj qha oxidation kev tawm tsam tshwm sim rau saum npoo ntawm anode catalytic txheej. Lub hydroxide ions hauv da dej yog catalyzed los ntawm cov khoom siv hlau hlau kom poob rau lub peev xwm qis. Lub caij no, cov organic teeb meem hauv da dej kuj tuaj yeem tawm thiab oxidize ntawm anode nto. Yog li ntawd, lub ntsiab lus tseem ceeb hauv anode manufacturing yog tswj cov pa oxygen evolution cov peev xwm los tiv thaiv kev ncaj qha oxidation ntawm cov organic teeb meem ntawm anode.
Ib xi nkoos, Oxygen kev hloov pauv cuam tshuam rau cov ntsiab lus oxygen hauv da dej. Cov pa tawm rau ntawm anode yuav tsum tawm hauv chav da nrawm kom txo nws lub sijhawm nyob. (Nco tseg: Cov kev tawm tsam rau mem tes sib txawv, thiab cov pa me me yog daus.)
2. Qhov zoo ntawm insoluble anodes dua li tooj liab pob
01.Lub anode tam sim no tsis yog txwv, ua txhaum los ntawm qhov ceev tam sim no bottleck ntawm 4.2 ASD tau ntsib cov khoom tooj liab (qhov chaw ntev ua rau kev ua yeeb yaj kiab thiab passivation). Qhov no nce ntau lawm ntau lawm FPC ntau lawm kab thiab RTR cov kab ntau lawm, qhov uas muaj cov anallole tau siv tam sim no.
02.Thaum lub sij hawm electrolating, anode undergoes ib oxidation cov tshuaj tiv thaiv uas tau tsim cov pa tsis tsim cov khoom seem. Qhov no ua rau cov hlau ion concentration nyob rau hauv cov tshuaj ruaj khov. (Tom qab daws qhov kev cuam tshuam ntawm cov tshuaj elotvoplating ntawm anode pulse tau txais txiaj ntsig zoo, txo cov nqi kho, thiab nce cov khoom siv.)
03.Lub anode loj tseem ruaj khov thaum lub chaw elevelplating, thiab anode thaj chaw tsis hloov pauv, tso cai rau kev faib tawm qhov tseem ceeb tam sim no kom nyob tas li. Qhov no cuam tshuam txhim kho cov kev faib tawm ceev tam sim no rau HDI zoo circuits, qhov txhaws, thiab tshuaj mem tes electroplating cov txheej txheem.
3. Cov txheej txheem yuav tsum muaj rau insoluble anodes
Tus yuam sij sib txawv ntawm insoluble anyodes feem ntau siv nyob rau hauv PCB electroplating thiab design formool teeb meem, uas nyob ntawm cov qauv ntawm cov khoom siv thiab cov qauv ntawm cov hlau nplaum txheej - txheej txheem catalyst.
Ob txoj kev yuav tsum yog kom ua kom muaj txiaj ntsig thaum kev tsim khoom:
Thawj, xyuas kom muaj zog sib txuas tau nruab nrab ntawm txheej thiab titanium substrate, uas yuav tsum:
Qhov chaw huv;
Tsim nyog nto roughness;
Cov qauv crystal zoo sib xws ntawm catalytic thiab cov qauv rutile).
Raws li cov hauv paus ntsiab lus ntawm cov qauv sib xws, cov qauv sib dhos tsim tau zoo tshaj plaws kom muaj zog.
Ib xi nkoos, maximize cov nqi hloov dua siab tshiab ntawm cov khoom siv uas muaj nqi rau hauv cov khoom siv catalytic. Qhov no yuav tsum muaj cov ntaub ntawv kev sim ua kom zoo rau cov txheej txheem txheej txheej txheej thiab cov txheej txheem ntau lawm.
4. Cov txheej txheem ntau lawm rau Insoluble anodes
Kub Rolling / Txias Rolling:Titanium daim txhuam cev yog ua tiav rau hauv cov phiaj titanium ntawm ntau yam tuab tuab.
Xuas Nrig Ntaus (Txiav):Titanium daim hlau yog tsim rau hauv meshes ntawm cov sib txawv sib txawv.
Pretreatment:Titanium mesh nto yog ntxuav kom ntseeg tau tias huv.
Tom qab cov kauj ruam no, nruj heev tsim kev tswj tau yog thov kom tsim cov txiaj ntsig zoo, tus nqi qis uas xa cov txiaj ntsig zoo rau cov neeg siv khoom.
Kev tsim qauv ntawm Titanium Anodes
I. Cov yuav tsum tau rau Titanium Anodes
Los ntawm cov neeg siv kev xam pom, thaum hloov los ntawm phosphor tooj liab pob rau titanium anodes nyob rau hauv lub taub tooj liab plating txheej txheem, cov thawj yuav tsum yog:
Cov hluav taws xob hluav taws xob zootxhawm rau txhim kho kom zoo;
Ruaj khov anode zooua kom muaj kev cia siab rau lub neej;
Ruaj khov kev nojlos tswj cov nqi khiav haujlwm.
Yog li, tus yuam sij rau cov titodes yog:
Cov neeg tsim khoom yuav tsum tau cov neeg tsim khoom lag luam xav tau cov neeg tsim qauv sab hauv. Titanium anodes muaj feem ntau ntawm ob ntu: lub titanium substrate thiab catalytic txheej. Cov neeg siv tshuab tsim ntawm substrate feem ntau txiav txim siab electrodating unencority, thaum lub txheej txheej txheej cuam tshuam rau lub neej thiab kev siv ntau dua.
Ii. Kev tso cai ntawm cov kev tsim qauv rau titanium anodes
Cov qauv siv tshuab yuav tsum sib phim cov khoom siv, nrog cov tuam txhab muab kev txhawb nqa hauv kev ua kom zoo ntawm kev ua raws li cov kev coj tsis zoo, xav:
Realitity teeb meem:
Titanium muaj txog 3 {0}} lub sij hawm {sij hawm tawm tsam tooj liab (0.47 · m).
Hauv phosphor tooj liab pob anodes, conduction kuj, tab sis nyob rau hauv titanium tee tshwm los ntawm sab saum toj mus rau hauv qab titanium cov neeg tsis zoo.
Los txo qhov no:
Siv dav dav thiab thicker titanium cov ntaub ntawv lossis titanium-tooj liab sib xyaw rau kev ua kom haum.
Disperserse tam sim no cov ntsiab lus tseem ceeb thoob plaws ntawm anode.
Substrate Hom Kev Txhim Kho:
Titanium mesh:Hollow tus qauv, loj dua cov kev tshem tawm tau zoo dua qub, tab sis qis dua kev siv zog thiab ntau dua kev tiv taus. Tsim kom zoo qauv tuaj yeem txhim kho nws qhov kev ua tau zoo.
Titanium phaj:Ntau dua kev ua haujlwm thiab lub zog, yooj yim rov qab rov qab dua tom qab stripping txheej, zoo dua dawb, tab sis siab dua pib tus nqi.
Npuas cawv ntawm kev ua yeeb yam zoo nkauj:
Oxygen Evolution ua rau cov nyiaj tiv thaiv. Tswjhwm npuas tsim thiab kev khiav dim yog qhov tseem ceeb los tswj cov khaub ncaws hluav taws xob.
III. Catalytic Txheej Tsim
Anode cov qauv tsim qauv qhia txog qhov tseem ceeb kev sib tw ntawm cov tuam ntxhab. Txheej Txheej Tsim nyob ntawm:
Cov Kev Mob Hluav Taws Xob:DC plating vs. Rov Qab Pulse plating yuav tsum muaj cov qauv sib txawv.
Kev Pab Cuam Lub Neej:Cov ntsiab lus hlau hlau yuav tsum xav txog kev ua haujlwm, tsis yog theoretical overcharge.
Kev Siv Kev Tswj Ntxiv:
Cov txheej txheem tshwj xeeb yog siv los txo cov kev tsis muaj txiaj ntsig ntxiv, ua kom zoo rau cov khoom uas zoo li kev sib tw, lub zog, thiab them tus nqi xaiv los yog repel ntxiv ntxiv.
IV. Lub ntsiab
Nrog ntau cov PCB cov kev yuav tsum tau thiab ntau dua automation yog maj hloov posphor tooj liab txheej txheem, tshwj xeeb tshaj yog nyob rau hauv mem tes plhaw cov ntawv thov. Cov ntawv thov tshiab txuas ntxiv mus tsa bar rau titanium anode kev loj hlob.
Anode manufacturers yuav tsum tau proactive thiab teb kom hloov kho cov neeg siv khoom.
Shaanxi Yuanzekai Hlau Tshuabtau cog lus los txhawb cov PCB kev lag luam los ntawm kev daws cov kev xav tau ntawm cov neeg siv khoom kawg, cov cuab yeej tsim khoom lag luam, thiab cov khoom siv tshuaj.
Xa kev nug