Phosphating yog cov txheej txheem tshuaj hloov pauv hauv cov txheej txheem nyias crystalline ntawm phosphate yog tsim rau saum npoo ntawm cov hlau. Cov txheej txheem suav nrog kev siv cov kua qaub uas muaj phosphoric acid, nrog rau cov ntsev hlau xws li zinc, hlau, lossis manganese. Qhov kev daws teeb meem no cuam tshuam nrog cov hlau nto los tsim cov phosphate txheej uas sib txuas nrog cov substrate.
Muaj ntau ntau hom phosphating txheej txheem, txhua qhov tsim nyog rau kev siv tshwj xeeb. Cov hom siv feem ntau yog:
Zinc Phosphating:Qhov no yog hom phosphating feem ntau siv rau cov hlau thiab hlau. Nws koom nrog kev tsim cov zinc phosphate txheej, uas muab kev tiv thaiv corrosion zoo heev thiab siv los ua lub hauv paus rau cov txheej txheem ntxiv xws li pleev xim lossis lubrication.
Hlau Phosphating:Txoj kev no feem ntau yog siv rau cov khoom ua los ntawm cov hlau ferrous thiab tsis tshua siv hauv kev lag luam uas xav tau kev tiv thaiv corrosion siab. Hlau phosphating feem ntau yog siv ua ntej - kho rau cov xim adhesion los yog kev tiv thaiv xeb rau luv luv - lub sij hawm tiv thaiv.
Manganese Phosphating:Cov txheej txheem no feem ntau yog siv rau cov khoom uas yuav tsum tau muaj zog hnav tsis kam thiab lubrication, xws li cov khoom siv tsheb, cov khoom siv tshuab, thiab phom. Manganese phosphate coatings yog thicker thiab ntxeem tau ntau tshaj zinc txheej, muab superior abrasion kuj.
Nickel Phosphating:Nickel phosphating tsis tshua muaj tab sis yog siv rau nws zoo heev hnav tsis kam thiab tiv thaiv corrosion. Nws feem ntau yog siv rau qhov chaw raug kub thiab txias los yog ib puag ncig hnyav.
Cov txheej txheem phosphating feem ntau muaj cov kauj ruam hauv qab no:
Ntxuav: Cov hlau saum npoo yog thawj zaug ntxuav kom huv si kom tshem tawm cov av, roj, roj, lossis oxidation. Cov kauj ruam no yog qhov tseem ceeb los xyuas kom muaj kev sib raug zoo ntawm phosphate txheej rau cov hlau nto. Kev ntxuav feem ntau yog ua los ntawm alkaline lossis acidic tu cov neeg ua haujlwm, nyob ntawm cov khoom siv.
Qhib qhib:Tom qab ntxuav, cov hlau saum npoo yuav qhib tau los txhim kho cov reactivity ntawm qhov chaw thiab xyuas kom zoo phosphate txheej adhesion. Kev ua kom muaj feem cuam tshuam nrog dipping cov hlau rau hauv cov kua qaub tshwj xeeb uas npaj rau saum npoo rau kev tsim cov phosphate txheej.
Phosphate Txheej:Tom qab ntawd cov hlau activated yog immersed nyob rau hauv ib da dej phosphating, qhov twg nws reacts nrog phosphoric acid tov. Cov hlau reacts nrog cov kua qaub thiab hlau ntsev los ua ib qho crystalline phosphate txheej. Lub thickness thiab hom txheej yog nyob ntawm cov txheej txheem phosphating tshwj xeeb siv.
Rinsing thiab ziab:Tom qab cov txheej txheem phosphating, cov hlau yog rinsed kom tshem tawm cov khoom seem. Tom qab ntawd nws qhuav kom tsis txhob tsim cov khoom tsis zoo los yog cov kab mob sib kis.
Ncej -Kev kho mob:Feem ntau, cov txheej txheem tom qab- kho yog siv los txhim kho kev ua haujlwm ntawm phosphate txheej. Qhov no tej zaum yuav muaj xws li sealing lub txheej nrog ib tug tshwj xeeb roj los yog ciab los txhim kho corrosion kuj thiab lubrication zog.
Qhov zoo ntawm Phosphating:
Phosphating muaj ntau yam txiaj ntsig rau cov tuam txhab tsim khoom, ua rau nws yog qhov kev xaiv nrov rau kev kho mob hlau. Qee qhov txiaj ntsig tseem ceeb suav nrog:
Corrosion Resistance:Phosphating muab ib txheej zoo heev ntawm kev tiv thaiv corrosion, tshwj xeeb tshaj yog thaum ua ke nrog lwm cov coatings xws li xim los yog roj. Cov txheej phosphate ua raws li kev thaiv, tiv thaiv cov dej noo thiab oxygen kom tsis txhob ncav cuag cov hlau nto, uas yuav pab txo qis kev xeb.
Txhim kho Adhesion: Phosphated nto muab lub hauv paus zoo dua rau cov txheej txheem tom ntej, xws li cov xim pleev xim lossis cov roj nplaum. Qhov ntxeem tau ntawm cov phosphate txheej tso cai rau kev sib raug zoo nrog cov xim thiab txhim kho tag nrho cov kav ntev ntawm kev ua tiav. Qhov no yog qhov tseem ceeb tshwj xeeb hauv kev lag luam xws li automotive thiab aerospace, qhov twg xim adhesion yog qhov tseem ceeb.
Txhim kho Lubrication:Qhov ntxeem tau tsim los ntawm phosphating tuav cov roj nplua nyeem, ua rau nws yog qhov zoo tshaj plaws kho rau qhov chaw uas muaj kev sib txhuam thiab hnav. Phosphated nto feem ntau yog siv rau hauv tsheb thiab tshuab qhov chaw los txo qhov hnav thiab tsim kua muag thiab txuas lub neej ntawm cov khoom.
Aesthetic Appeal:Phosphating kuj txhim kho qhov zoo nkauj ntawm cov hlau qhov chaw. Qhov tsaus grey lossis dub tiav los ntawm zinc thiab manganese phosphating feem ntau nyiam rau nws cov kws tshaj lij thiab zoo li niaj hnub, tshwj xeeb tshaj yog nyob rau hauv cov ntawv thov kev lag luam.
Tus nqi -zoo:Phosphating yog ib qho kev lag luam thiab kev ua haujlwm zoo. Nws tsis xav tau cov ntaub ntawv kim lossis cov cuab yeej siv nyuaj, ua rau nws raug nqi - kev xaiv zoo rau kev tsim khoom loj -. Cov txheej txheem tuaj yeem ua haujlwm tsis siv neeg thiab tsim nyog rau ntau lawm, txo cov nqi zog thiab txhim kho kev ua haujlwm.
Environmentally Friendly:Ntau cov txheej txheem phosphating, tshwj xeeb tshaj yog zinc thiab manganese phosphating, yog suav tias yog ib puag ncig tus phooj ywg piv rau lwm txoj kev kho saum npoo. Cov tshuaj siv nyob rau hauv cov txheej txheem tuaj yeem rov ua dua thiab rov siv dua, txo cov pov tseg thiab kev cuam tshuam ib puag ncig.
Kev siv Phosphating:
Phosphating yog siv nyob rau hauv ntau yam kev lag luam, los ntawm tsheb mus rau kev tsim kho thiab kev tsim khoom. Qee qhov kev siv ntau tshaj plaws suav nrog:
Automotive Kev Lag Luam:Phosphating yog dav siv nyob rau hauv kev lag luam automotive rau qhov chaw xws li nres Cheebtsam, ncua kev kawm ntawv qhov chaw, thiab cav qhov chaw. Zinc phosphating feem ntau yog siv los muab kev tiv thaiv corrosion rau cov khoom no, thaum manganese phosphating yog siv rau cov khoom uas yuav tsum tau txhim kho hnav tsis kam.
Aerospace:Hauv kev lag luam aerospace, phosphating yog siv rau qhov chaw raug mob hnyav, xws li cov khoom siv dav hlau. Cov txheej txheem pab txhim kho corrosion kuj thiab muab lub hauv paus zoo rau xim adhesion.
Muaj Machinery:Phosphating feem ntau yog siv rau cov khoom siv hauv kev lag luam, xws li iav, ncej, thiab bearings. Kev txhim kho lubrication zog ntawm phosphate txheej pab txo qis hnav thiab txuas lub neej ntawm cov khoom no.
Cov khoom siv:Ntau yam khoom siv hauv tsev, xws li kho vajtse thiab khoom siv, tau kho nrog phosphating los txhim kho lawv cov tsos thiab kev ua tau zoo. Cov txheej txheem kuj tseem siv los tiv thaiv cov hlau hauv cov khoom siv hauv chav ua noj thiab cov cuab yeej hluav taws xob.
Xaus:
Phosphating yog ib qho tseem ceeb ntawm cov txheej txheem kho deg rau cov tuam txhab nrhiav kev txhim kho kev ua tau zoo, ua haujlwm ntev, thiab ua haujlwm ntev ntawm cov hlau. Nrog nws lub peev xwm los txhim kho corrosion kuj, txhim kho cov xim adhesion, thiab muab cov roj nplua nyeem ntxiv, phosphating muab ntau yam kev daws teeb meem rau ntau yam kev lag luam. Los ntawm kev nkag siab txog cov txiaj ntsig thiab kev siv ntawm phosphating, cov tuam txhab lag luam tuaj yeem txiav txim siab paub txog nws txoj kev siv hauv lawv cov txheej txheem tsim khoom, ua kom cov khoom zoo - zoo thiab ntev - cov khoom siv tau ntev. Txawm hais tias rau tsheb, aerospace, kev lag luam, lossis cov neeg siv khoom siv, phosphating tseem yog cov txheej txheem tseem ceeb hauv kev kho hlau nto.
