1. Txhua lub luag haujlwm ntawm kev ua kom haum corrosion tsis kam rau nws tus kheej?
Lub cev lub cev cov nyhuv loj: cov yeeb yaj kiab phosphate yog tsim ntawm ntau tus naj npawb me me ntawm cov qhiav tshuaj, uas tau npaj kom zoo los ua ib qho qauv pacround. Nws tuaj yeem sau cov ntawv me me ntawm qhov chaw ntawm cov hlau phaj, cais cov pa hluav taws xob sab nraud (oxygen, as) los ntawm kev sib chwv me me, thiab ncua cov txheej txheem hluav taws xob.
Electrochemical Kev Tiv Thaiv Kev Tiv Thaiv: Cov yeeb yaj kiab phosphate nws tus kheej muaj qee qhov muaj peev xwm txo cov peev xwm sib txawv ntawm cov hlau sib txawv thiab inhibit lub micro-roj teeb. Ib qho ntxiv, yog tias cov phosphat tov muaj cov hlau thiab cov duab zoo nkauj, cov yeeb yaj kiab phosphate "ua rau lub zinc" ua kom zoo dua qub, txuas ntxiv txhim kho kev tiv thaiv corrosion.
Kev tiv thaiv synvanized nrog cov galvanized txheej: lub galvanized txheej nws tus kheej tiv thaiv txheej ntawm zinc txheej thiab qhov chaw sab nraud thiab txo cov kab xeb ntawm zinc. Kev sib xyaw ntawm ob daim foos muaj kev tiv thaiv kab ke ntawm "zinc txheej + phosphate zaj duab xis yog qhov zoo dua li ntawm ib txheej.
2.Yog dab tsi nws muaj ntawm txheej nplaum?
Cov me me rau cov nyhuv anchoring: tus qauv ntxig ntawm cov xim hlau), uas yog sib npaug ntawm cov txheej txheem steel los tiv thaiv cov txheej los ntawm kev poob qis vim yog quab yuam lossis kev hloov pauv ib puag ncig. Piv txwv li, thaum Electrophoretic txheej, lub pores ntawm phosphate zaj duab xis tuaj yeem adsorb xim thiab txhim kho txoj kev sib khi ntawm cov txheej thiab substrate.
Kev tswj hwm cov dej saum npoo av: Phosphaating kev kho tuaj yeem tshem tawm cov yeeb yaj kiab oxide, thiab tib lub sijhawm ua yeeb yaj kiab, thiab cov tshuaj lom neeg sib xyaw ua ke, ua kom zoo dua cov khoom sib txuas lus ntawm cov nplaum ntawm txheej.
Txhim kho txheej sib xws: cov yeeb yaj kiab phosphate tuaj yeem npog cov npoo hlau ntawm lub ntsej muag sib txawv thiab cov tsos zoo (xws li glightness) ntau ruaj khov.
3.Yog li cas nws muaj nyob rau kev ua kev ua tau zoo?
Lubrication thiab kev sib txhuam kev sib txhuam: hauv stamping, kos duab thiab ua yeeb yaj kiab ua yeeb yaj kiab, tshwj xeeb yog kev sib tw phos me me (tshwj xeeb yog cov khoom siv pwm, thiab nthuav tawm lub neej ntawm cov pwm.
Sib npaug ntawm rwb thaiv tsev thiab conductivity: txawm hais tias cov duab phosphate yog cov khoom qias neeg, uas tuaj yeem txo cov qias neeg tsis muaj kuab paug thaum ua; Nyob rau tib lub sijhawm, nws lub ntsej muag porous khaws cov kev tshaj tawm ntawm ib feem ntawm cov txheej txheem vuam txuas ntxiv (xws li chaw vuam txuas ntxiv mus vim tias rawv tsis zoo.
4.Yog lwm tus tso ib asuxiliary puas muaj?
Deg tu thiab ua kom ua kom: degreeze, picking thiab lwm yam kev ua tau ua ntej phospers, thiab tso rau hauv lub hauv paus ntawm cov yeeb yaj kiab txuas ntxiv.
Cov tsos mob thiab kev txheeb xyuas muaj nuj nqi: sib txawv ntawm cov yeeb yaj kiab phosphall (xws li zinc series (xws li grey-dub thiab lub teeb grey thiab lub teeb grey, uas tuaj yeem txhim kho cov ntsej muag sib txawv ntawm cov hlau phaj rau ib qho; Qee cov txheej txheem phosphatating tseem tuaj yeem tsim cov txheej txheem saum npoo av los ntawm kev tswj hwm zaj duab xis tuab thiab cov qauv siv lead ua, uas tuaj yeem siv rau cov khoom cim lossis sib txawv.
5.Qhov dab tsi tseem ceeb tus tseem ceeb ntawm phosphats?
Kev kho mob phosphat tsim cov txheej hloov ntawm cov txheej txheem galvanized ntawm "kev tiv thaiv lub cev + cov haujlwm ntawm kev tiv thaiv", uas muaj kev yoog raws thiab pab txheem kev pab. Nws yog qhov tsis tseem ceeb nyob hauv lub teb kev tsim khoom, cov khoom siv hauv tsev thiab lwm cov liaj teb thiab lwm cov liaj teb nrog rau cov kev tiv thaiv qib siab rau kev tiv thaiv corrosion thiab txheej. Nws cov haujlwm tuaj yeem ua tau cov npe tau ua tiav raws li: txhim kho corrosion tsis kam, ntxiv dag zog cov nplaum thiab ua kom ua tau zoo. Nws yog ib tus txheej txheem tseem ceeb pretricatment hauv cov ntawv thov txuas ntxiv ntawm Galvanized steel ntawv.