1.What puas tau txais kev pab txhais tau li cas?
Kev sib txuam ua ke tam sim ntawd muab cov khoom siv hluav taws xob freshly txias rau hauv lub sijhawm luv luv (feem ntau 10-60 lub kub (feem ntau 500℃-560℃-560℃-560℃-560℃-560℃-560℃-560 degree).
Lub hom phiaj tseem ceeb ntawm cov txheej txheem no yog tso cai diffusion thiab tshuaj lom neeg sib xyaw ua ke ntawm cov txheej txheem tuab silinc (feem ntau)
Tsuas yog muab tso, cua sov hloov cov "adherent ntshiab zinc txheej" rau hauv "rau" zinc {}}}}}}}}}}}}}}}}}}}}}}}}}} ™} txheej txheej sib khi ua ke rau cov hlau substrate. "
2.What tus txheej txheem tsim khoom ntawm cov khoom siv galvanized?
Pretreatment: tus steel sawb undergoes tu thiab annealing (hauv ib qho chaw txo).
Kub - dip galvanizing: Tus Hlau Stip yog raus hauv lub lauj kaub ntawm Molten Zinc, tso ib txheej ntawm cov ntshiab zinc rau saum npoo.
Kev siv tawm: Galvanized steel txaij nkag mus rau cov alloying annealing rauv rau kev tswj siab siab siab {}} kub}}} kub kub.
Txias thiab tswj: Tom qab tawm ntawm cov cub tawg, cov kab txaij dhau los ua kom ruaj khov ua kom ruaj khov rau cov txheej txheem txheej txheej.
Tshaj tawm {{0 {{}} Kev kho mob: Qhov no yuav suav nrog kev caij passivation, roj, phosphating, thiab lwm txoj hauv kev los txhim kho kev ua tau zoo ntxiv.
3.Qhov kev hloov pauv yuav tshwm sim hauv microstructure ntxiv tom qab kev ua kom zoo?
Ua ntej kev kho mob (concectional kub - dip galvanizing): -}}}).
Tom qab kho (galvannealing): cov ntshiab zinc txheej ploj tag nrho, thiab cov txheej txuas ntxiv ua ib txheej txuas txuas ntxiv, thiab txheej txheem} ™ hlau txheej uas loj hlob ntawm cov hlau substrate.
4.Qhov dab tsi yog qhov kev ua tau zoo coj los ntawm kev kho kom vam meej?
Zoo heev Weldability
Qhov no yog nws thawj qhov tau txais txiaj ntsig. Qhov tsis kam ntawm cov txheej txheej txheej yog qhov qis dua li ntawm cov ntshiab zinc thiab muaj ntau yam tsis zoo. Qhov no ua rau muaj hluav taws xob hluav taws xob ntev dua, cov vuam dav hlau qhov rai, thiab ntau dua weld zoo thiab txhim khu kev qha weld zoo thaum lub qhov chaw vuam.
Cov xim pleev xim zoo Adhesion
Cov alroyed nto muaj qhov siab dua qhov chaw (feem ntau hu ua "cov txiv kab ntxwv tev" uas ntxim nyiam ntshiab. Qhov no muab cov adhesion zoo tshaj plaws rau cov duab txuas ntxiv thiab txheej.
Ntau corrosion tsis kam
Piv rau cov ntshiab zinc, lub peev xwm electrode ntawm cov zinc {}} Ick co txheej los ze dua ntawm cov hlau substrate, ua rau qeeb qeeb corrosion. Rau qhov sib npaug ntawm cov nyhav, nws txoj kev tiv taus liab (substrate corrosion) feem ntau zoo dua li ntawm cov hlau galvanized. Nws corrosion resistance feem ntau ntawm "Barrier kev tiv thaiv" ntau dua li "kev tiv thaiv Anodic" ntawm cov ntshiab zinc.
Kev puas tsuaj
Cov txheej txheej alloy cov txheej txheem muaj zog metallurgical daim ntawv cog lus nrog cov hlau substrate, ua rau nws cov khawb av, thiab cuam tshuam, thiab tsis tshua muaj kev txhawj xeeb rau tev.
5.Qhov dab tsi yog qhov kev ua tau zoo coj los ntawm kev kho kom zoo?
Kev poob ntawm kev tiv thaiv kev coj ua
Lub alloy txheej yog tsawg txoj kev nquag tshaj li ntshiab zinc. Thaum txheej txheej khawb, ua rau cov hlau hauv paus, nws tus kheej-} kho cov tshuaj harodic yog qhov tsis muaj zog.
Nce sab tawv tawv thiab brittleness
Lub alloy txheej yog qhov nyuaj dua thiab muaj tseeb nkwb tshaj li zinc. Thaum lub sijhawm ua tiav cov txheej txheem zoo li kev sib sib zog nqus thiab dabtsi yog khoov, microcracks ("flaking") tuaj yeem tsim rau saum npoo, cuam tshuam rau cov tsos thiab corrosion tsis kam. Qhov no yog qhov kev txhawj xeeb uas yuav tsum tau saib xyuas tshwj xeeb thaum tsim daim ntawv alloy.
Cov ntsej muag nto
Lub alloy txheej tsises nws ci, zoo nkauj xim hlau luster luster, tawm ntawm {- xim dawb, ua rau nws tsis xav tau nyob hauv qee cov ntawv thov uas pom yog qhov tseem ceeb.