1.What yog cov txiaj ntsig ntawm kev kho mob passivation ntawm corrosion tsis kam?
Tseem ceeb txo qhov kev tsim ntawm "Dawb xeb" (zinc hydrots, thiab lub sijhawm dawb ntawm unpassivated coils, tab sis lub sijhawm no tuaj yeem txuas ntxiv mus rau 1-3 lub hlis tom qab passivation.
{{0- ine txhim kho "tus kheej-}} Cov yeeb yaj kiab me me, maj mam kho cov txheej txheem me me, qeeb me ntsis
- chromium - Kev tiv thaiv kev ywj pheej (kwv yees li ntawm ib puag ncig cov qauv
2.What yog cov txiaj ntsig tshwj xeeb ntawm kev kho cov roj kho ntawm corrosion tsis kam?
Muaj zog luv - Term kev tiv thaiv: hauv luv-}}} kev tiv thaiv piv rau kev tiv thaiv zoo dua.
- Pab rau kev kho ZinCing Dispection: Cov roj zaj duab xis nkag mus rau hauv cov txheej me me, ua kom muaj kev nkag tsis zoo thiab txo qis corrosion.
3.Qhov yog qhov kev cuam tshuam tshwj xeeb ntawm kev kho txheej ntawm kev kho txheej ntawm corrosion tsis kam?
Optimal Ntev - Lub sij hawm huab cua tiv thaiv: txheej muaj peev xwm ua rau lub hnub ci ntsa iab thiab cov dej hiav txwv siab, tuaj yeem ua rau muaj txiaj ntsig
Tsis tas li, kev zoo siab: cov txheej txaus siab: cov txheej tuaj yeem kho hauv cov xim thiab ci, thiab nws tiv thaiv cov txheej ntawm zinc txheej thaum thauj mus los.
4.Qhov dab tsi yog qhov tshwj xeeb ntawm kev kho mob phosphall rau corrosion tsis kam?
Enhanced "zinc txheej + txheej" kev tiv thaiv "tom qab txheej tsis yog tev, yog cov txheej ua rau cov tev vim yog zinc corrosion. Tom qab phosphating, phosphate zaj duab xis nruj nreem sib txuas nrog cov txheej. Txawm hais tias qhov txheej yog ib nrab puas, cov yeeb yaj kiab phosphate tuaj yeem qeeb kis ntawm corrosion, txuas ntxiv rau tag nrho cov kev tiv thaiv corrosion los ntawm 50% -100%.
{{0-} Txhim kho cov tshuaj txau ntsev: kev sib xyaw ua ke tuaj yeem ua ke ntawm cov txheej nruab nrab ntawm 200 teev nrog txheej ib leeg mus rau ntau dua 500 teev.
5.Qhov yog tus tseem ceeb cuam tshuam kev txhawb nqa cov txheej txheem kev kho deg ntawm corrosion tsis kam?
Thaiv kev nkag mus ntawm corrosive media
Nov yog lub hom phiaj tseem ceeb ntawm txhua txoj kev kho cov tib yam. Cov yeeb yaj kiab passivation, cov yeeb yaj kiab roj, cov yeeb yaj kiab nyias, thiab tshuaj txhuam hniav rau txhua qhov chaw "ntawm cov tshuaj pleev ib ce hauv cov ntug hiav txwv ib puag ncig) thiab cov txheej txheem zinc. Piv txwv li, porosity ntawm chromium- free passivation zaj duab xis tsuas yog 1/10 uas yog qhov tseem ceeb zinc txheej ntawm cov xov xwm corrosive.
Inhibiting Electrochemical Corrosion ntawm Zinc
Zinc Corrosion yog qhov tseem ceeb ib qho kev tawm tsam hluav taws xob hauv "zinc - steel" galvanic cell (zinc ua raws li anode, tau noj). Cov khoom xyaw xws li chromates thiab titanium ntsev ua tiav daim ntawv qhia kev ua si "ntawm chav siv hluav taws xob" ntawm cov chaw siv hluav taws xob "ntawm cov hluav taws xob thiab qeeb tus nqi ntawm electrochemical corrosion. Cov yeeb yaj kiab ntxig ntawm cov yeeb yaj kiab phosphate kuj nqus cov tshuaj tiv thaiv corrosion inhibitors, txuas ntxiv inhibiting cov tshuaj tiv thaiv.
Kho cov uas muaj qhov tsis xws luag nyob rau hauv cov txheej zinc
Lub zinc txheej ntawm kub - dip galvanized chrems thiab khawb av (tsis suav "ploj plating me me"). Cov tsis xws luag cov tsis xws li "cov ntsiab lus sib tawg" rau kev xeb. Cov tshuaj yeeb yaj kiab roj ntawm cov roj kho tuaj yeem nkag mus rau hauv cov hws kom sau tsis taus; Zaj duab xis passivation tuaj yeem tsim tau qhov kev xav tau ntawm qhov tsis xws luag los txhim kho kev tiv thaiv hauv zos; Lub crystalline qauv ntawm phosphate zaj duab xis tseem tuaj yeem npog cov khawb me me kom tiv thaiv tsis xws luag los ntawm kev nthuav dav.