1.What yog tus tiv thaiv tus txheej txheem ntawm galvanized txheej?
Cov txheej txheem tiv thaiv kev tiv thaiv: Cov tuab zinc txheej lub cev cais cov hlau substrate los ntawm kev tawm tswv yim corrosive (oxygen, ntsev).
Kev Tiv Thaiv Kev Tiv Thaiv Kev Tiv Thaiv Kev Tiv Thaiv Kev Tiv Thaiv Kev Tiv Thaiv Kev Tiv Thaiv: Zinc muaj qhov tsis zoo dua li hlau. Thaum lub txheej puas lawm los yog khawb, zinc yuav corrode ua ntej, yog li tiv thaiv cov hlau substrate thiab inhibiting kis tus xeb txawm ntawm kev puas tsuaj me me.
Passivation: Zinc Durosion khoom (xws li yooj yim zinc carbonate) tsim ib qho kev tiv thaiv, tus ua yeeb yaj kiab ruaj khov rau saum npoo, qeeb qeeb hauv qab corrosion.
2.Yog dab tsi cov kev sib tw muaj cua thiab xuab zeb ib puag ncig ua rau galvanized steel txhawb txhawb?
Abrasive hnav: High-tshuab hluav taws xob ceev tsis tu ncua qhov kev cuam tshuam hauv av (tshwj xeeb yog kev sib tsoo ntawm cov kab hlau thiab cov yeeb yaj kiab cov khoom sib tsoo zoo li cov duab.
Syngistic Corrosion cov nyhuv: hnav-corrosion txuas: hnav rhuav tshem cov txheej tiv thaiv thiab nrawm dua; Corrosion khoom (xws li xoob xoob dints) yog yooj yim yooj yim dua los ntawm cua thiab xuab zeb, sib sau ua lub voj voog voj.
Cov tshuaj corrosive hauv cov xuab zeb: xuab zeb thiab hmoov av tuaj yeem muaj cov tshuaj ntsev (cov av muaj kua ntoo), uas yog cov khoom qias neeg, uas yuav ua rau muaj kev nrawm nrawm hauv zos.
Kev Cuam Tshuam: Cov xuab zeb loj dua los yog gravel nyob rau hauv cov khoom cua muaj zog (pits, khawb, kos) rau lub galvanized txheej, dhau los ua qhov pib rau corrosion.
3.Qhov dab tsi yog qhov tseem ceeb rau kev tawm tsam cua thiab xuab zeb?
Galvanizing Txheej tuab tuab (qhov tseem ceeb tshaj plaws): Ib txheej tuab tshaj plaws Cov Qauv Txheej Txheem yuav tsum muaj cov tuab hauv zos kom muaj ntau dua lossis sib npaug ntawm ntau dua lossis muaj ntau dua 100μm, lossis txawm tias muaj 120-15050. Lub thicker lub zinc txheej, qhov muaj zog nws cov coj tsis kam thiab ntev-lub sij hawm ua hauj lwm tsis kam.
Galvanizing Zoo: Cov Kev Lom Zem: Cov zinc txheej yuav tsum tau npog tag nrho cov chaw (suav nrog cov ces kaum, tsis muaj qhov tsis haum, npuas, thiab sagging.
Lub zog hauv tsev muaj zog: lub zinc txheej yuav tsum tau sib khi ua ke rau cov hlau substrate thiab tsis yooj yim tev tawm hauv qab hnav.
Hlau Matrix muaj pes tsawg leeg thiab qhov xwm txheej nto: txheem bracket steel.
Kev kho deg (pickling, plating kev pab) ua ntej plating yuav tsum muaj txhij txhua kom paub tseeb tias qhov zoo ntawm txheej.
4.How Galvanized Steel piv rau lwm cov kev tiv thaiv corrosion?
Zoo dua li cov pa roj carbon steel (tsis muaj peev xwm): Qhov no yog qhov ua tau zoo lead. Cov pa roj carbon steel yuav ceev ceev thiab ua kom pom tseeb hauv qhov chaw cua thiab xuab zeb ib puag ncig.
Zoo dua li cov xim tiv thaiv corrosion: cov xim txheej yog yooj yim hnav thiab tev tawm hauv qab cua ntsawj ntshab thiab xuab zeb puas tsuaj. Thaum puas, qhov kis tau puas yuav muaj xeb ceev ceev thiab kis tau. Txawm hais tias lub galvanized txheej yog hnav, txoj kev tiv thaiv kev tua tsiaj anode tseem siv tau.
5.Qhov yog cov kev ntsuas txhawm rau txhim kho lub peev xwm ntawm cov hlau galvanized txhawb kom tiv taus cua thiab xuab zeb?
Qhia kom meej rau cov txheej kub txaus-DIP txaus galvanizing: qhov no yog qhov tseem ceeb thiab tseem ceeb tshaj plaws rau 85μm hauv zos thickness).
Xaiv cov txheej txheem siab tshaj plaws: hauv cov haujlwm nrog cua hlob heev thiab xuab zeb lossis xav siv lub neej ntau tshaj 25 xyoos, xav siv zinc-txhuas-hlau nplaum.
Kev tswj nruj ua nruj: Xyuas kom cov tuab tuab, kev sib txuam thiab cov nplaum ntawm galvanizing txheej ua tau raws cov qauv.