Nyob rau hauv cov lus piav qhia ntawm niaj hnub precision manufacturing thiab hluav taws xob kev lag luam, tooj dag nyob rau hauv ib tug pivotal txoj hauj lwm vim nws zoo heev hluav taws xob thiab thermal conductivity thiab zoo machinability. Los ntawm precision hluav taws xob Cheebtsam rau niaj hnub phab ntsa keyboards thiab sockets, tooj dag ntawv stamping qhov chaw ua zoo li li qub nyob rau hauv cov hlab ntsha ntawm kev lag luam, tswj cov ndlwg ntawm hluav taws xob. Txawm li cas los xij, txawm tias nws qhov kev ua tau zoo tshaj plaws, tooj dag muaj qhov tsis muaj zog tseem ceeb - nws yog qhov ua rau oxidation heev. Tom qab stamping, yog tias tsis ua raws sij hawm thiab kev kho saum npoo zoo, qhov qub ci ci ntawm qhov chaw yuav poob nws cov luster sai sai thiab tseem tuaj yeem tsim cov pob liab lossis dub. Qhov no tsis tsuas yog cuam tshuam rau qhov zoo ntawm cov khoom, tab sis kuj ua rau kev tiv thaiv kev tiv thaiv, ua rau muaj kev nyab xeeb hluav taws xob. Yog li, kev paub txog kev tiv thaiv kev tiv thaiv - oxidation thiab passivation kev kho tshuab tom qab tooj dag stamping yog ib qho teeb meem thev naus laus zis uas txhua tus kws ua haujlwm hlau yuav tsum kov yeej.
Qhov Kev hem thawj zais ntawm Oxidation thiab qhov tsim nyog ntawm Passivation
Brass yog ib qho alloy ntawm tooj liab thiab zinc. Qhov no binary lossis multi- cov qauv tsim ua rau nws nthuav tawm cov tshuaj lom neeg ua haujlwm ntawm qib microscopic. Thaum lub sij hawm stamping, lub lattice qauv ntawm cov hlau nto yog deformed los ntawm sab nraud quab yuam, ua kom lub zog saum npoo thiab muab tso rau hauv lub thermodynamically tsis ruaj khov. Ua ke nrog cov roj seem seem, cov dej txias, cov ntiv tes, hws, thiab ya raws thiab oxygen los ntawm huab cua, Hluav taws xob tooj dag hloov qhov (socket) Cov khoom muaj qhov cuam tshuam rau electrochemical corrosion lossis tshuaj oxidation. Qhov no oxidation tsis tsuas yog manifests raws li nto discoloration (xws li iridescent, xim av, los yog dub), tab sis ntau lub hauv paus, nws koom nrog rau dezincification corrosion ntawm zinc, ua rau cov khoom ntxeem tau nto thiab ib tug ntse poob nyob rau hauv conductivity.
Passivation yog tus txheej txheem tseem ceeb tsim los daws qhov teeb meem no. Nws tsis yog ib qho yooj yim lub cev txheej, tab sis ib tug chemical transformation txheej txheem. Cov tshuaj tshwj xeeb cuam tshuam nrog cov hlau nto kom tsim tau ib qho tsis tshua muaj nyias, tuab, thiab muaj zog tiv thaiv zaj duab xis. Cov yeeb yaj kiab no ua haujlwm zoo li pob tshab "lub tsho tiv thaiv lub tsho tiv thaiv" rau Cov Hluav Taws Xob Hluav Taws Xob Cov Hluav Taws Xob Cov Hluav Taws Xob Cov Hluav Taws Xob Hluav Taws Xob, ua kom cov hlau substrate tau zoo los ntawm cov xov xwm corrosive sab nraud (xws li cov pa oxygen, noo noo, thiab ntsev tsuag), yog li ua rau qeeb qeeb ntawm corrosion thiab tswj cov hlau qhov qub luster thiab lub cev lub cev.
Ua ntej- txheej txheem Kev Npaj: Kev Tu Kom Huv Huv
Kev vam meej ntawm txhua qhov chaw kho mob pib nrog kev tu kom zoo. Thawj kauj ruam tseem ceeb tshaj plaws hauv cov txheej txheem passivation yog ua ntej - kho degreasing. Qhov saum npoo ntawm Cov Hluav Taws Xob Cov Hlau Hlau Stamping rau Lub Qhov (Socket Switches) tom qab stamping feem ntau dais ntau cov khoom seem, suav nrog cov roj ntxhia, hluavtaws ester stamping roj, hlau shavings, oxide nplai, thiab cov ntiv tes tawm ntawm cov neeg ua haujlwm. Yog tias cov kab mob no tsis raug tshem tawm kom huv si, cov tshuaj passivation tsis tuaj yeem hu ncaj qha rau cov hlau substrate, uas ua rau "cov ntsiab lus to" lossis cov adhesion tsis zoo ntawm cov yeeb yaj kiab passivation, ua rau kev tiv thaiv tsis ua haujlwm.
Rau cov roj stains, tooj liab brightening cov tshuaj ntxuav tes tuaj yeem ua tiav qhov zoo tshaj plaws degreasing thiab micro-etching cuam tshuam, kho qhov chaw kom huv thiab ci. Txawm li cas los xij, rau cov roj hnyav hnyav lossis cov khoom lag luam uas tau ua tiav cov txheej txheem ncab, ib qho tshuaj ntxuav acidic yuav tsis txaus. Hauv cov xwm txheej zoo li no, tus neeg sawv cev alkaline degreasing yuav tsum tau qhia rau kev kho ua ntej -. Ib puag ncig alkaline zoo saponifies roj, tev nws tawm ntawm qhov chaw txias Stamping Brass rau Hloov. Tom qab degreasing, kev yaug kom huv si yog qhov tseem ceeb los tiv thaiv alkaline residues los ntawm neutralizing tom qab acidic los yog nruab nrab passivation daws thiab cuam tshuam cov tshuaj sib npaug ntawm cov tshuaj.
Cov ntsiab lus tseem ceeb: Environmentally Friendly Chromium-Free Passivation Technology
Nrog rau kev nruj nruj thoob ntiaj teb cov kev cai ib puag ncig (xws li RoHS thiab REACH), cov txheej txheem hexavalent chromium passivation cov txheej txheem yog maj mam raug txiav tawm vim lawv cov tshuaj lom neeg siab thiab carcinogenicity. Kev lag luam niaj hnub nyiam ib puag ncig tus phooj ywg chromium- cov kev daws teeb meem pub dawb. Cov kev daws teeb meem no feem ntau yog tsim los ntawm cov organic heterocyclic compounds (xws li benzotriazole thiab nws cov derivatives), molybdates, tungstates, thiab lwm yam.
Lub tshuab ntawm chromium-dawb passivation yog nyob rau hauv kev sib koom ua ke ntawm cov active pab pawg nyob rau hauv passivating tus neeg sawv cev molecules thiab tooj liab thiab zinc atoms, tsim ib tug nanoscale organic-inorganic composite zaj duab xis nyob rau saum npoo ntawm Silver Plated tooj dag Terminal. Cov yeeb yaj kiab no tsis yog tuab xwb tab sis kuj muaj tus kheej - kho muaj peev xwm. Thaum lub sijhawm ua haujlwm, cov khoom ua ntej-kho tau muab tso rau hauv cov tshuaj passivation, feem ntau xav tau lub sijhawm tshuaj tiv thaiv tsawg kawg 5 feeb. Cov txheej txheem no yuav tsum muaj kev tswj hwm nruj ntawm pH tus nqi ntawm cov tshuaj da dej (feem ntau tsis muaj zog alkaline lossis nruab nrab), thiab kev tiv thaiv nruj ntawm cov tshuaj acidic los ntawm kev qhia, vim tias pH hloov pauv ncaj qha cuam tshuam rau kev ceev thiab zoo ntawm kev tsim cov yeeb yaj kiab. Lub siab- zaj duab xis passivation zoo yuav tsum yog ib yam, pob tshab, thiab yuav tsum tsis txhob hloov qhov tseeb qhov tseeb ntawm lub workpiece, tsis cuam tshuam rau nws cov conductivity thiab weldability.
Tom Qab-Kev Kho Mob Art: Kev Tswj Kub Kub rau Ntxuav thiab ziab
Tom qab cov tshuaj tiv thaiv passivation, ib qho me me ntawm cov tshuaj passivation yuav nyob twj ywm rau saum npoo ntawm lub hwj chim sawb tooj dag. Yog tias cov residues tsis tau ntxuav, lawv yuav tsim cov pob los yog dej tom qab ziab, cuam tshuam rau qhov tsos. Yog li ntawd, ntau-theem ntxuav yog ib kauj ruam tseem ceeb. Ua ntej, yaug nrog dej kais dej kom tshem tawm feem ntau ntawm cov tshuaj. Tom qab ntawd, nws raug nquahu kom yaug nrog dej ntshiab lossis deionized kom tshem tawm calcium thiab magnesium ions thiab tiv thaiv kev tsim cov nplai.
Kev ziab yog txoj kab kawg ntawm kev tiv thaiv. Lub qhov (socket) uas tau ntxuav tas li yuav tsum tau qhuav sai sai, vim tias qhov chaw ntub dej yog qhov cuam tshuam rau theem nrab oxidation hauv huab cua. Kev tswj qhov kub kom qhuav yog qhov tseem ceeb; Nws feem ntau pom zoo kom khaws nws ntawm 80℃thiab 100 degree. Yog tias qhov kub thiab txias qis dhau, cov dej noo evaporates maj mam, thiab cov khoom ua haujlwm yuav tau oxidized thaum lub sij hawm ziab; Yog tias qhov kub thiab txias siab dhau (siab tshaj 100 degree), cov yeeb yaj kiab passivation tuaj yeem tawg lossis muaj hnub nyoog vim yog thermal stress, poob nws txoj haujlwm tiv thaiv. Rau cov khoom ua haujlwm nrog cov txheej txheem nyuaj, xws li qhov sib sib zog nqus los yog cov xov sab hauv, cua kub ncig lossis centrifugal ziab kuj tseem yuav tsum tau ua kom qhuav kom huv si.
Refined Management ntawm txheej txheem Parameters
Hauv kev tsim khoom tiag tiag, kev ruaj ntseg ntawm cov txheej txheem passivation nyob ntawm kev tswj xyuas cov ntsiab lus. Piv txwv li, qhov concentration ntawm cov tshuaj passivation txo qis rau lub sijhawm, yuav tsum tau saib xyuas thiab rov ua dua tshiab; qhov kub ntawm lub da dej kuj cuam tshuam rau cov tshuaj tiv thaiv tus nqi, thiab cov txheej txheem tsis tuaj yeem xav tau zoo - kho lub caij ntuj no thiab lub caij ntuj sov. Tsis tas li ntawd, qhov chaw ntawm qhov hluav taws xob sawb tooj dag rau ntawm lub hanger kuj cuam tshuam cov nyhuv passivation; Kev sib tshooj lossis kev sib cuag ntawm cov khoom ua haujlwm yuav tsum raug zam kom ntseeg tau tias cov tshuaj ntws mus dawb thiab npog txhua qhov chaw.
Rau siab -requirements hluav taws xob tiv tauj, xws li phab ntsa hloov cov neeg sib cuag los yog lub hwj chim sawb tooj dag, ntxiv rau cov pa passivation, ntxiv sealing kev kho mob los yog daim ntawv thov ntawm cov organic tiv thaiv kab mob yog tej zaum yuav tsum tau tiv thaiv ntau stringent ntsev tshuaj tsuag los yog tes hws kuaj corrosion. Cov txheej txheem pabcuam xws li kev sib tsoo vibratory thiab tshuaj polishing tuaj yeem txhim kho qhov smoothness ntawm lub substrate, txo cov microscopic defects, thiab muab lub hauv paus zoo dua rau kev tsim zaj duab xis passivation.
Hauv cov ntsiab lus, kev tiv thaiv kev tiv thaiv oxidation passivation ntawm kev hloov pauv tooj dag lub davhlau ya nyob twg yog ib txoj haujlwm ua haujlwm, suav nrog ntau theem los ntawm kev ua ntej degreasing thiab ntxuav, mus rau kev hloov tshuaj nruab nrab, thiab zaum kawg tu thiab ziab. Kev tsis saib xyuas txhua theem tuaj yeem ua rau cov khoom tsis ua haujlwm. Tsuas yog los ntawm kev nkag siab tob txog cov tshuaj tiv thaiv kab mob, tswj cov txheej txheem nruj me ntsis, thiab xaiv ib puag ncig tus phooj ywg thiab cov ntaub ntawv passivation muaj txiaj ntsig tuaj yeem ua tau siab - cov khoom siv tooj dag zoo nrog lub ntsej muag golden, kev ua haujlwm ruaj khov, thiab ua haujlwm ntev, ua kom muaj kev sib tw hauv kev lag luam.
Tiv tauj peb
Yog tias koj ntsib teeb meem oxidation thiab discoloration hauv kojBrass Sheet Hlau Stampingtxheej txheem kev kho deg, lossis yog tias koj xav tau cov kev daws teeb meem ib puag ncig tus phooj ywg passivation, thov koj xav tiv tauj peb. Peb pab pawg kws tshaj lij yuav muab kev cob qhia cov txheej txheem rau koj thiab cov qauv kev pabcuam los pab koj txhim kho cov khoom zoo thiab kev sib tw ua lag luam.
