Raws li kev tsim khoom rau cov kev hloov pauv siab, kev loj hlob sai sai thiab cov khoom siv dag zog thiab cov khoom siv hluav taws xob zoo tshaj plaws yog cov khoom lag luam uas yooj yim rau lub neej yooj yim Txhawm rau daws cov teeb meem no, kev lag luam feem ntau adopts cov ntaub pua npoo npoo av, txhawm rau txhim kho nws cov yam ntxwv saum npoo, kom txhim kho qhov zoo ntawm cov cuab yeej.
Lub pob zeb diamond hmoov sab nraud txheej txheem yog ntau dua, hluav taws xob plating sib xyaw ua ke, muaj cov tshuaj lom neeg kub, tau dhau los ua kev lag luam ob feem ntau siv thev naus laus zis.
1. Tshuaj Plating
Pob zeb diamond mos lwj yog muab cov tshuaj pleev cov tshuaj kho kom zoo, thiab tso nyiaj ntawm cov tshuaj txo cov tshuaj tsis zoo Tam sim no, cov siv hluav taws xob ntau tshaj plaws yog tshuaj lom neeg plating-phosphorus-phosphorus-phosphorus-phosphorus- phosphorus- phosphorus- phos binary
01 Composition Ntawm Tshuaj Nickel Plating Cov Lus
Qhov muaj pes tsawg leeg ntawm kev sib cav sib ceg muaj kev txiav txim siab cuam tshuam ntawm kev nce qib du, ruaj khov thiab txheej zoo thiab cov tshuaj tiv thaiv zoo. Nws feem ntau muaj cov ntsev tseem ceeb, txo tus neeg sawv cev, ua tsis tau zoo, tsis muaj zog, tsis huv, nrawm, sensfactant, surfactant thiab lwm yam. Qhov kev faib ua feem ntawm txhua cov khoom siv yuav tsum tau ua tib zoo kho kom tiav kom ua tiav cov nyhuv zoo tshaj plaws.
1, ntsev ntau: feem ntau npib tsib xee, npib tsib xee, Nickel Amino Sulphate, thiab lwm yam.
2. Hauv kev lag luam, sodium alterinary phosphate nrog kev txo peev xwm txo lub peev xwm, tus nqi qis thiab zoo plating ruaj khov yog tsuas yog siv raws li tus neeg sawv cev txo tau. Qhov ntsuas txo tau tuaj yeem ua tiav tshuaj plating plating ntawm tsawg kub thiab kub.
3, Cov neeg sawv cev ua haujlwm tau: Qhov txheej txheej daws tau prefitional txheej, feem ntau siv succinin acid, lactic acid, lactic acid, litric acid thiab lwm yam organic acids thiab lawv cov ntsev.
4. Lwm yam kev ua tsis tau: Lub stabilizer tuaj yeem inhibit lub decomposition ntawm cov kev daws teeb meem, tab sis vim tias nws yuav cuam tshuam txog qhov tshwm sim ntawm cov tshuaj tiv thaiv kev plating, xav tau kev siv ntau yam; Tus tsis tuaj yeem tsim H + thaum lub sijhawm tshuaj lom neeg Nickel plating ua kom muaj kev ruaj ntseg txuas ntxiv ntawm PH; Lub surfactant tuaj yeem txo cov txheej sib xyum dawb.
02 Tshuaj Siv Nickel-plating
The chemical plating of sodium hypophosphate system requires that the matrix must have certain catalytic activity, and the diamond surface itself does not have catalytic activity center, so it needs to be pretreated before the chemical plating of diamond powder. Cov kev ua yeeb yam pretreatment txoj kev siv tshuaj txhuam hniav yog cov roj tshem tawm, coarsening, rhiab thiab ua kom muaj zog.
(1) Kev tshem tawm roj, coarsening: roj tawm yog tsuas yog tshem tawm cov roj, stains thiab lwm yam kuab paug orgomic, kom paub tseeb tias qhov ze thiab ua tau zoo ntawm cov txheej tom qab. Lub coarsening tuaj yeem tsim qee qhov me me thiab cov kab nrib pleb ntawm cov kab txuas ntxiv, tab sis kuj tseem ua rau kev loj hlob ntawm cov tshuaj txhuam hniav lossis hluav taws xob plhaw txheej.
Feem ntau, cov roj tshem tawm feem ntau yuav siv lub naoh thiab lwm yam kev tshem tawm cov roj av, thiab lwm yam tshuaj acid yog siv los ua cov roj ntsha roj hmab rau etch lub pob zeb diamond nto. Ib qho ntxiv, ob qhov txuas no yuav tsum tau siv nrog ultrasonic ntxuav tshuab ntxuav, txuag lub sijhawm tshem tawm cov roj hmab tshem tawm thiab ua kom muaj cov nyhuv ntawm cov roj tshem tawm thiab ntxhib,
(2) Kev ua kom zoo nkauj thiab kev ua kom zoo nkauj: cov txheej txheem ua kom zoo tshaj plaws yog qhov tseem ceeb tshaj plaws rau seb cov tshuaj plating seb puas tuaj yeem nqa tawm. Lub siab yog txhawm rau adsorb yooj yim oxidized tshuaj nyob rau saum npoo ntawm pob zeb diamond hmoov uas tsis muaj lub peev xwm autocatanytic. Kev ua kom muaj kev ua kom yog adsorb cov oxidation ntawm hypophosphoric acid thiab catalytically acid thiab ua kom nrawm ntawm txheej ntawm cov npoo ntawm pob zeb diamond hmoov.
Generally speaking, the sensitization and activation treatment time is too short, the diamond surface metal palladium point formation is less, the adsorption of the coating is insufficient, the coating layer is easy to fall off or difficult to form a complete coating, and the treatment time is too long, will cause the palladium point point waste, therefore, the best time for sensitization and activation treatment is 20~30min.
(3) Tshuaj Nickel plating: Tus txheej txheem Nickel plating txheej txheem tsis yog cuam tshuam los ntawm cov lus sib xyaw, tab sis kuj cuam tshuam los ntawm txheej daws qhov kub thiab txias thiab sau tus nqi. Kev siv cov tshuaj kub ib txwm ua, qhov ntsuas kub yog nyob hauv 80 ~ ℃, ntau dua 85 ℃ kub dua 85 ℃ kub, cov nqi tshuaj tiv thaiv ntau dua Nyob rau hauv PHC ua kom muaj kev tso zis tso quav, tab sis cov txheej txheem tshuaj lom neeg ua haujlwm, yog cov tshuaj lom neeg sib xyaw ua ke, tswj cov txheej txheem sib xyaw ua ke, tswj cov txheej txheem kev sib xyaw ua ke,
Tsis tas li ntawd, ib txheej ib leeg yuav tsis ua tiav cov txheej txheej zoo, thiab lwm yam kev puas tsuaj los txhim kho cov txheej txheem zoo thiab nce cov dispersion ntawm coated pob zeb diamond hmoov.
2. Electro nickelling
Vim tias lub sijhawm phosphorus nyob rau hauv txheej txheej txheej txheej sib dhos, nws ua rau txheej xuab zeb uas tsis muaj phosphorus tuaj yeem siv txoj hauv kev ntawm Nickel plating. Cov haujlwm tshwj xeeb yog muab cov pob zeb diamond tso rau hauv cov kev daws teeb meem hluav taws xob thiab cov kab hluav taws xob tsis zoo rau cov atoms, los ntawm cov omls tsis zoo rau lub pob zeb diamond nyob rau hauv cov npoo pob zeb, thiab cov atoms loj hlob mus rau txheej.
01 kev sib xyaw ntawm cov kev daws teeb meem
Zoo li cov tshuaj siv tshuaj txhuam hniav, cov kev daws teeb meem electroplating tsuas yog muab cov txheej txheem hluav taws xob, thiab tswj hwm tus txheej txheem Nickel kom tau txais cov hlau xav tau. Nws lub ntsiab lus tseem ceeb suav nrog cov ntsev loj, anode tus neeg sawv cev, tsis yog tus neeg sawv cev tsis sib ntxiv, ntxiv thiab lwm yam.
(1) Cov ntsev tseem ceeb: feem ntau yog siv npib tsib xee, thiab lwm yam ntxiv rau cov kev sib txawv, thiab cov khoom siv hlau loj, thiab cov hlau loj dua ntawm cov txheej, thiab nyuaj rau kev tswj hwm.
(2) anode tus neeg sawv cev: Vim tias Anode yooj yim rau kev faib nyiaj npib npe, yog li ntawd nws yog qhov tsim nyog ntxiv rau kev ua kom muaj zog tam sim no, txhim kho qhov ceev tam sim no ntawm anode passivation.
(3) Tus neeg sawv cev tsis ua tiav: zoo li cov tshuaj lom neeg cov tshuaj tiv thaiv tuaj yeem tswj hwm cov kev daws teeb meem thiab cov Cathohode muaj peev xwm yoog raws li cov txheej txheem hauv hluav taws xob. Tus neeg saib xyuas tsis sib xws muaj boric acid, acetic acid, sodium bicarbonate thiab lwm yam.
(4) Lwm yam kev ntxiv ntxiv: Raws li cov tseev kom muaj ntawm cov txheej txheem, ntxiv tus neeg sawv cev ntawm tus neeg sawv cev rau lwm tus thiab lwm yam ntxiv los txhim kho cov txheej txheem zoo.
02 Pob Zeb Diamond Electroplated Nickel Flow
1. Pretreaticment ua ntej plating: pob zeb diamond yog feem ntau tsis yog kev coj ua, thiab xav tau plated nrog ib txheej ntawm cov hlau los ntawm cov txheej txheem txheej. Tshuaj Plating Txoj Kev Sib Tw yog feem ntau siv los ua ntej plating ib txheej ntawm cov hlau thiab tuab, yog li cov tshuaj pleev cov tshuaj yuav cuam tshuam qhov zoo ntawm txheej plating rau ib qho. Feem ntau hais lus, cov ntsiab lus ntawm phosphorus nyob rau hauv cov txheej txheem tom qab tshuaj yeeb yaj kiab muaj qhov zoo tshaj plaws ntawm cov nqaij acidic, thiab cov khoom lag luam loj muaj ntau cov khoom lag luam thiab cov khoom sib nqus; Qhov nruab nrab phosphorus txheej muaj ob qho tib si corrosion tsis kam thiab coj kev tawm tsam; Qhov qes phosphorus txheej muaj qhov zoo dua ua tau zoo.
Tsis tas li ntawd, qhov me me qhov me me ntawm cov pob zeb diamond, thaum tsim kom muaj kev sib tw, yuav tsim kom muaj kev sib tw, yuav tsim kom muaj cov hmoov av, yuav tsim kom muaj cov hmoov av, yuav tsim nyog, yuav tsim kom muaj kev sib tw, yuav tau los tswj cov hmoov av, yuav tsim kom muaj cov hmoov av loj, yuav tsim kom muaj cov hmoov av loj, yuav tsim kom muaj cov hmoov av uas muaj zog, yuav tsim kom muaj cov hmoov av, yuav tsim kom muaj cov hmoov av zoo los txhim kho cov hmoov kom yooj yim kom ntab.
2, Nickel plating: Tam sim no, pob zeb diamond hmoov ntau zaus rau kev sib hloov ntawm cov raj hluav taws xob, los ntawm kev sib hloov ntawm lub raj mis, tsav lub pob zeb diamond, tsav lub pob zeb diamond hmoov hauv lub hwj rau yob. Nyob rau tib lub sijhawm, qhov zoo electrode txuas nrog lub npib tsib xee, thiab cov tsis zoo electrode tau txuas nrog cov pob zeb diamond hmoov. Raws li kev nqis tes ua ntawm lub teb hluav taws xob, lub npib hluav taws kub pub dawb hauv cov plating daws cov kab hlau tsib xee ntawm cov khoom siv dag pob zeb diamond hmoov. Txawm li cas los xij, hom no muaj teeb meem ntawm cov txheej txheej qis thiab tsis sib xws, yog li cov txheej txheem electrode tuaj mus ua.
Txoj kev rotating electrode txoj kev yog kom tig lub Cathode hauv pob zeb diamond plating. Txoj kev no tuaj yeem ua rau thaj chaw tiv tauj ntawm cov electrode thiab pob zeb diamond befernles, txhim kho cov kev ua haujlwm tsis zoo, thiab txhim kho kev tsim tawm ntawm pob zeb diamond no plating.
Luv luv
Raws li cov khoom siv raw ntawm pob zeb diamond ntawm pob zeb diamond micropowder yog ib qho tseem ceeb txhais tau tias yuav txhim kho lub neej matrix thiab txhim kho kev pabcuam lub neej ntawm cov cuab yeej. Txhawm rau txhim kho cov kab ntawv xuab zeb ntawm cov cuab yeej pob zeb diamond, ib txheej ntawm npib tsib xee thiab phosphorus ib txwm muaj los ntawm Nickel plating, thiab txhim kho kev coj ua. Txawm li cas los xij, nws yuav tsum tau sau tseg tias lub pob zeb diamond sab nraud nws tus kheej tsis muaj lub chaw ua haujlwm catalytic, yog li nws yuav tsum tau ua ntej tshuaj plating ua ntej plating.
Cov ntaub ntawv siv:
Liu han. Kawm ntawm cov txheej txheej saum npoo thiab qhov zoo ntawm cov khoom siv dag pob zeb diamond micro [d]. Zhongyuan lub koom haum ntawm thev naus laus zis.
Yang Biao, Yang Jun, thiab Yuan Guangsheng. Kev kawm txog cov txheej txheem pretreatment ntawm pob zeb diamond nplaim txheej [j]. Chaw Chaw Ua Haujlwm.
Lis jinghua. Kev tshawb fawb ntawm kev hloov kho saum npoo thiab daim ntawv thov ntawm cov khoom siv ua pob zeb diamond sau rau cov hlau tau kaw [D]. Zhongyuan lub koom haum ntawm thev naus laus zis.
Fang lili, Zheng Lian, Wu Yanfei, li al. Tshuaj Nickel plating txheej txheem ntawm cov khoom siv ua pob zeb diamond ntawm cov khoom siv [J]. Phau ntawv Joy iol.
Kab lus no tau luam tawm nyob rau hauv lub Tuam Txhab Nyiaj Txiag
Lub sij hawm ncua: Mar-13-2025
