Nyob rau hauv lub realm ntawm kev lag luam kev kho mob, phosphating cov kev daws teeb meem kev ua haujlwm tseem ceeb thiab ntau yam. Ib hom phosphating yog ib qho tshuaj lom tshwj xeeb feem ntau siv los tsim cov tshuaj phosphate hloov pauv ntawm cov hlau. Cov txheej txheem no, hu ua phosphatating, tau txais ntau yam kev lag luam vim nws lub peev xwm los txhim kho kev ua tau zoo thiab kav ntev ntawmhlauCheebtsam.
Ntawm nws cov tub ntxhais, phosphating daws muaj ob peb yam tseem ceeb. Phosphoric acid yog qhov tseem ceeb, uas
Muaj peev xwm qhia txog phosphate ions tsim nyog rau kev tsim cov txheej txheej. Nrog rau phosphoric acid, cov lus piv txwv xws li zinc phosphate, manganese phosphate, lossis cov yeeb yaj kiab hlau feem ntau suav nrog. Cov tshuaj phosphatates hlau no ua raws li lub tsev thaiv cov txheej rau txheej, txiav txim siab nws cov khoom thiab cov yam ntxwv. Ib qho ntxiv, cov reeters yog ntxiv rau kev daws teeb meem. Cov reepators no, feem ntau nitrates, nitrites, lossis chlorates, ceev cov tshuaj lom neeg cov tshuaj lom neeg, txo lub sijhawm uas yuav tsum tau rau daim ntawv. Lwm yam kev sib ntxiv yuav suav nrog surfactants los txhim kho cov av hlau, inhibitors los tiv thaiv kom tsis txhob muaj cov txheej txheem loj heev ntawm cov hlau ions hauv lublus teb.
Tus txheej txheem ua hauj lwm ntawm phosphating kev daws yog raws li kev tshuaj lom neeg ntawm kev daws thiab cov hlau substrate. Thaum hlau yog raus rau hauv phosphadating daws teeb meem, muaj cov tshuaj tiv thaiv ntawm cov tshuaj lom zem ntawm lub interface. Cov phosphoric acid nyob rau hauv kev daws teeb meem nrog cov hlau nto, ua rau cov hlau kom yaj me ntsis thiab tso cov hlau ions rau hauv kev daws. Cov hlau ions ces hnov nrog phosphate ions tam sim no nyob rau hauv kev daws teeb meem los ua insoluble hlau ntsev rau cov muaju. Cov Crystals maj loj hlob thiab ua raws li cov hlau saum npoo av, sib sau ib qho nyias nyias, cov txheej txheem. Lub resulting phosphate txheej yog ntxeem tau, uas tso cai rau kev nqus cov roj nplua nyeem lossis pleev xim, ntxiv txhim kho cov khoom saum npoo ntawm cov hlau.
Phosphaating daws teeb meem tuaj yeem faib rau ntau hom raws li cov hlau ions lawv muaj thiab cov ntawv thov.Zinc Phospating Cov Ntsiab Lusyog ib hom siv feem ntau siv. Lawv tsim cov txheej txheej tuab thiab siv tuab thiab siv tau uas muaj cov xim xeb zoo heev thiab cov xim pleev xim zoo. Zinc phosphat yog dav siv nyob rau hauv kev lag luam automotive rau kev kho cov khoom xws li lub cev ntoo, lub cav sib xyaw ua ke. Manganese phospating daws, ntawm qhov tod tes, ua ib qho nyuaj thiab hnav ntau dua - tiv taus txheej. Hom phosphating no feem ntau thov rau cov chaw uas yuav raug rau theem kev sib txhuam siab thiab hnav, bearings, thiab cuab yeej. Hlau phosphaating daws teeb meem, kev tiv thaiv nyias, tsuas yog siv rau kev ua ntej steel ua ntej pleev xim, tshwj xeeb yog nyob rau hauv cov rooj tog zaum thiab khoom siv khoom siv.
Cov kev siv ntawm phosphating daws teeb meem muaj ntau yam. Hauv kev lag luam hauv tsheb, phosphaating yog ib qho tseem ceeb ntawm cov kauj ruam kev tsim khoom. Nws tsis tsuas yog tiv thaiv cov hlau feem los ntawm xeb thiab xeb tab sis kuj tseem txhim kho cov nplaum ntawm cov xim pleev xim thiab lwm qhov chaw ua tiav, ua kom ntev thiab ua kom zoo nkauj. Hauv kev lag luam hlau ua kev lag luam, phosphat yog siv los ntub cov hlau qhov chaw thaum lub sij hawm ua si xws li kev sib tw txias, kos duab, thiab stamping. Lub ntxeem ntxig phosphot txheej tuaj yeem tuav lubricants, txo kev sib txhuam thiab hnav ntawm cov hlau thiab cov cuab yeej ua. Hauv kev tsim kho thiab kev lag luam, phosphat pab los tiv thaiv cov qauv hlau loj thiab cov khoom siv los ntawm ib puag ncig corrosion, nce lawv lub neej kev pabcuam.
Txawm li cas los xij, kev siv phosphating daws teeb meem tseem los nrog qee qhov kev txiav txim siab ib puag ncig thiab kev nyab xeeb. Phosphaating cov kev daws teeb meem feem ntau muaj cov hlau hnyav thiab lwm yam tshuaj noj uas tuaj yeem tsim kev puas tsuaj yog tias tsis tswj hwm. Thaum lub sij hawm phosphating txheej txheem, khib cov ntsiab yog tsim tawm, uas yuav tsum tau kho thiab pov tseg ntawm kev ua phooj ywg ib puag ncig. Cov kev cai nruj yog nyob rau hauv ntau lub teb chaws los tswj kev tawm ntawm phosphating khib nyiab los tiv thaiv cov dej thiab tsis muaj kuab paug. Ib qho ntxiv, cov neeg ua haujlwm sib dhos phospating daws teeb meem, xws li kev tiv thaiv khaub ncaws kev tiv thaiv kev nyab xeeb, kom tsis txhob muaj kev sib cuag ntawm daim tawv nqaij uas muaj kev phom sij.
Hauv kev xaus, cov lus hais phosphaating yog qhov nyuaj thiab tsis tseem ceeb chemical rau hauv lub ntiaj teb kev lag luam. Nws lub peev xwm los tsim kev tiv thaiv thiab kev ua haujlwm ntawm cov hlau tau ua rau muaj ntau qhov kev tsim khoom thiab cov txheej txheem kho kom zoo. Thaum nws muaj cov txiaj ntsig tseem ceeb los daws cov teeb meem ib puag ncig thiab kev nyab xeeb kom ntseeg tau tias muaj kev ruaj ntseg thiab siv lub luag haujlwm. Raws li thev naus laus zis txuas ntxiv kev tshawb fawb los tsim cov txheej txheem zoo ib puag ncig thiab muaj txiaj ntsig zoo dua cov txheej txheem ntawm cov tshuaj sib xyaw zoo tshaj plaws.