Electroplated pob zeb diamond cov cuab yeej koom nrog ntau cov txheej txheem hauv kev tsim khoom, ib qho txheej txheem tsis txaus, yuav ua rau cov txheej txheem poob.
Cov nyhuv ntawm kev kho mob ua ntej plating
Cov txheej txheem kev kho mob ntawm cov hlau matrix ua ntej nkag mus rau hauv lub plating tank yog hu ua pre-plating kev kho mob. Pre-plating kev kho mob muaj xws li: mechanical polishing, roj tshem tawm, yaig thiab ua kom cov kauj ruam. Lub hom phiaj ntawm kev kho mob ua ntej plating yog tshem tawm cov burr, roj, oxide zaj duab xis, xeb thiab oxidation ntawm daim tawv nqaij ntawm lub matrix, thiaj li yuav nthuav tawm cov hlau matrix kom loj hlob cov hlau lattice ib txwm thiab tsim cov intermolecular binding quab yuam.
Yog tias qhov kev kho mob ua ntej plating tsis zoo, qhov saum npoo ntawm lub matrix muaj cov roj nyias nyias thiab oxide zaj duab xis, cov yam ntxwv ntawm cov hlau matrix tsis tuaj yeem raug nthuav tawm tag nrho, uas yuav cuam tshuam qhov tsim ntawm cov txheej hlau thiab cov hlau matrix, uas tsuas yog cov khoom siv inlay, cov hlua khi tsis zoo. Yog li ntawd, tsis zoo pretreatment ua ntej plating yog lub ntsiab ua rau txheej shedding.
Cov nyhuv ntawm plating
Cov mis ntawm cov tshuaj plating ncaj qha cuam tshuam rau hom, hardness thiab hnav tsis kam ntawm txheej hlau. Nrog rau cov txheej txheem sib txawv, lub thickness, ceev thiab kev ntxhov siab ntawm txheej hlau crystallization tuaj yeem tswj tau.
Rau zus tau tej cov pob zeb diamond electroplating cov cuab yeej, feem ntau cov neeg siv nickel los yog nickel-cobalt alloy. Yog tsis muaj kev cuam tshuam ntawm plating impurities, cov yam ntxwv cuam tshuam rau cov txheej txheej yog:
(1) Kev cuam tshuam ntawm kev ntxhov siab sab hauv Cov kev ntxhov siab sab hauv ntawm txheej yog tsim nyob rau hauv cov txheej txheem ntawm electrodeposition, thiab cov additives nyob rau hauv lub yaj nthwv dej thiab lawv cov khoom decomposition thiab hydroxide yuav ua rau muaj kev ntxhov siab sab hauv.
Macroscopic kev ntxhov siab tuaj yeem ua rau npuas, tawg thiab poob ntawm cov txheej txheem ntawm kev khaws cia thiab siv.
Rau npib tsib xee plating lossis npib tsib xee-cobalt alloy, qhov kev ntxhov siab sab hauv yog qhov sib txawv, qhov siab dua cov ntsiab lus chloride, qhov ntau dua qhov kev ntxhov siab sab hauv. Rau lub ntsiab ntsev ntawm npib tsib xee sulfate txheej txheej, qhov kev ntxhov siab sab hauv ntawm watt txheej txheej yog tsawg dua li ntawm lwm cov txheej txheej. Los ntawm kev ntxiv cov organic luminent los yog kev ntxhov siab tshem tawm tus neeg sawv cev, macro sab hauv kev ntxhov siab ntawm txheej tuaj yeem txo qis thiab qhov kev ntxhov siab hauv microscopic tuaj yeem nce ntxiv.
(2) Cov txiaj ntsig ntawm hydrogen evolution nyob rau hauv ib qho kev daws teeb meem, tsis hais nws tus nqi PH, muaj ib txwm muaj qee yam ntawm hydrogen ions vim kev sib cais ntawm cov dej molecules. Yog li ntawd, nyob rau hauv qhov tsim nyog, tsis hais plating nyob rau hauv acidic, nruab nrab, los yog alkaline electrolyte, muaj feem ntau hydrogen nag lossis daus nyob rau hauv lub cathode nrog rau cov hlau nag lossis daus. Tom qab hydrogen ions txo qis ntawm cathode, ib feem ntawm hydrogen khiav tawm, thiab ib feem nkag mus rau hauv cov hlau matrix thiab txheej hauv lub xeev ntawm atomic hydrogen. Nws cuam tshuam lub lattice, ua rau muaj kev ntxhov siab sab hauv, thiab tseem ua rau cov txheej txheem deformed.
Cov teebmeem ntawm cov txheej txheem plating
Yog hais tias muaj pes tsawg leeg ntawm cov tshuaj electroplating thiab lwm yam kev tswj cov txheej txheem raug tshem tawm, lub zog tsis ua hauj lwm nyob rau hauv cov txheej txheem electroplating yog ib qho tseem ceeb ua rau lub txheej poob. Cov txheej txheem ntawm electroplating ntau lawm ntawm electroplating pob zeb diamond cov cuab yeej yog txawv ntawm lwm hom electroplating. Cov txheej txheem plating ntawm electroplating pob zeb diamond cov cuab yeej suav nrog npliag plating (puag), xuab zeb txheej thiab txheej txheem thickening. Nyob rau hauv txhua txoj kev, muaj qhov ua tau ntawm cov matrix tawm hauv cov txheej txheem plating, uas yog, lub zog hluav taws xob ntev lossis luv luv. Yog li ntawd, kev siv cov txheej txheem tsim nyog ntau dua, cov txheej txheem kuj tseem tuaj yeem txo qhov tshwm sim ntawm txheej txheej shedding phenomenon.
Tsab ntawv tau luam tawm los ntawm "Tuam Tshoj Superhard Materials Network"
Post lub sij hawm: Mar-14-2025
