Cov cuab yeej hluav taws xob koom nrog ntau cov txheej txheem hauv cov txheej txheem tsim khoom, cov txheej txheem tsis txaus, yuav ua rau txheej txheej kom poob tawm.
Cov nyhuv ntawm kev kho ua ntej plating
Cov txheej txheem kho ntawm cov hlau matrix ua ntej nkag mus rau lub plating tank yog hu ua pre-plating kho. Pre-plating kev kho mob suav nrog: kev kho tshuab polishing, roj tshem tawm, yaig thiab ua kom cov kauj ruam. Lub hom phiaj ntawm kev kho plating Pre-plating yog tshem tawm cov burr, roj, oxide zaj duab xis nyob rau saum npoo ntawm av hlau loj thiab tsim lub interbolecular khi quab yuam.
Yog tias txoj kev kho mob ua ntej yuav tsis zoo, lub npoo av muaj cov hlau sib xyaw ua ke, uas yog cov hlau sib dhos, uas tsuas yog siv tshuab hluav taws xob, lub zog ua haujlwm tsis zoo. Yog li ntawd, tsis zoo pretreatment ua ntej plating yog lub ntsiab ua kom cov txheej txheem shedding.
Cov nyhuv ntawm cov plating
Cov mis ntawm cov kev daws teeb meem ncaj qha cuam tshuam rau hom, hardness thiab hnav tsis kam ntawm cov hlau txheej. Nrog cov txheej txheem sib txawv, cov tuab tuab, tuab thiab kev ntxhov siab ntawm txheej txheej hlau crystallization kuj tseem tau tswj hwm.
Rau kev tsim cov pob zeb diamond electroplating cov cuab yeej, feem ntau cov neeg siv npib tsib lossis npib tsib xee-cobalt alloy. Tsis muaj cawv txiv hmab ntawm plating impurities, qhov tseeb cuam tshuam rau txheej txheej txheej txheej yog:
(1) Kev ntxhov siab sab hauv kev ntxhov siab sab hauv cov txheej txheem sab hauv ntawm cov txheej txheem hluav taws xob, thiab cov khoom sib ntxiv hauv cov khoom siv desolved thiab hydroxide yuav nce sab hauv kev ntxhov siab.
Macroscopic kev nyuaj siab tuaj yeem ua rau npuas, tawg thiab poob tawm ntawm cov txheej txheem hauv cov txheej txheem ntawm cov txheej txheem thiab siv.
Rau npib tsib xee plating lossis npib tsib xee-cobalt alloy, kev ntxhov siab sab hauv yog qhov sib txawv heev, ntau dua cov chloride cov ntsiab lus, ntau dua sab hauv kev ntxhov siab. Rau lub ntsiab ntsev ntawm noickel sulfate txheej daws teeb meem, kev ntxhov siab sab hauv ntawm watt txheej daws yog tsawg dua li lwm cov txheej txheej daws. Los ntawm kev ntxiv cov organic luminent lossis kev ntxhov siab ua rau muaj kev ntxhov siab, Macro sab hauv kev ntxhov siab ntawm txheej tuaj yeem txo thiab lub tshuab tsom iav loj tuaj yeem nce ntxiv.
(2) Cov nyhuv ntawm hydrogen evolution nyob rau hauv ib qho kev plating daws, tsis hais nws tus nqi p p p p p p p p p muaj ib ib txwm muaj qee qhov kev sib cais ntawm cov lwg dej. Yog li ntawd, nyob rau hauv cov xwm txheej tsim nyog, tsis hais txog plating nyob rau hauv ib qho acidic, nyob rau hauv cov pa hluav taws xob, lossis alkaline hluav taws xob nag lossis daus hauv cov nag lossis daus. Tom qab hydrogen ions txo ntawm cathode, ib feem ntawm hydrogen escapes, thiab ntu saib mus rau hauv matrix hlau thiab txheej hauv lub xeev ntawm atomic hydrogen. Nws distort lub lattice, ua rau muaj kev ntxhov siab sab hauv kev ntxhov siab, thiab tseem ua rau cov txheej deem tsis muaj kev cuam tshuam.
Qhov cuam tshuam ntawm cov txheej txheem plating
Yog tias muaj pes tsawg leeg ntawm cov kev daws teeb meem electroplating thiab lwm yam txheej txheem tswj cov txheej txheem raug cais tawm, lub zog tsis ua hauj lwm yog qhov tseem ceeb ua kom poob. Cov txheej txheem hluav taws xob ntau lawm ntawm cov electroplating pob zeb diamond cov cuab yeej muaj ntau yam txawv ntawm lwm hom electroplating. Cov txheej txheem plating ntawm electroplating pob zeb cov cuab yeej suav nrog kev plating, puag ncig thiab cov txheej txheem xuab zeb thiab tuab. Hauv txhua tus txheej txheem, muaj tau ntawm lub matrix ncaim cov plating tov, uas yog, ntev lossis luv zog hluav taws xob. Yog li ntawd, kev siv cov txheej txheem tsim nyog dua, cov txheej txheem tuaj yeem tuaj yeem txo qhov tshwm sim ntawm txheej txheej shedding tshwm sim tshwm sim.
Tsab xov xwm tau luam tawm los ntawm "Tuam Tshoj SuperHard Cov Ntaub Ntawv Network"
Lub Sijhawm Post: Mar-14-2025
