Hlau hloov tau yooj yim thiab elongation yog qhov zoo, tuaj yeem tiv taus lub siab ntawm kev siv tshuab, hauv peb lub teb chaws kev lag luam tau ua lub luag haujlwm tseem ceeb heev.Muaj ntau hom hlau hlau.Feem ntau yog cov hlau dub hlau thiabgalvanized hlau hlau.Kev tiv thaiv corrosion ntawm cov txheej txheej sab nrauv tau raug txhim kho zoo, tab sis qhov tshwm sim ntawm crevice corrosion yuav pom tom qab siv mus ntev.
Crevice corrosion yog ib yam ntawm corrosion nyob rau hauv me me cheeb tsam, tshwj xeeb tshaj yog nyob rau hauv qhov chaw zais, uas muaj peev xwm tsim vicious corrosion voj voog.Yuav luag txhua qhov crevice corrosion tuaj yeem tshwm sim hauv cov hlau alloy, nrog cov roj uas muaj anionic nruab nrab nruab nrab Z yog ib qho yooj yim ua rau crevice corrosion, crevice corrosion feem ntau tshwm sim nyob rau hauv lub aperture ntawm 0.025 mus rau 0.1 hli, vim lub sij hawm ntev sib sau ua ke, cov kab nrib pleb yuav tshwm sim. ib tug series ntawm impurities, ua ke nrog rau sab nraud ib puag ncig ntawm damp yooj yim corrode cheeb tsam ntawm qhov sib txawv me me.
Lub sij hawm ntev raug rau tej impurities yuav ua rau kev hloov pauv thiab qhov sib txawv corrosion.Txoj kev daws teeb meem ncaj qha rau qhov tshwm sim no yog txhawm rau ntxiv dag zog rau txheej txheej ntawm cov khoom kom tsis txhob muaj corrosion.Lub sij hawm ntawm kev tiv thaiv ntawm galvanized hlau hlau yog heev muaj feem xyuam rau lub thickness ntawm txheej.Feem ntau hais lus, hauv cov roj tseem ceeb qhuav thiab siv sab hauv tsev, thiab nyob rau hauv ib puag ncig hnyav, galvanized txheej thickness yuav tsum siab heev.Yog li ntawd, nyob rau hauv kev xaiv ntawm galvanized txheej thickness los xav txog tej yam ntawm ib puag ncig.
Tom qab kev kho mob passivation ntawm galvanized txheej, lub ci ci thiab zoo nkauj xim passivation zaj duab xis tuaj yeem tsim tau, uas tuaj yeem txhim kho nws txoj kev tiv thaiv kev ua haujlwm thiab kev ua haujlwm nrawm.Muaj ntau ntau hom zinc plating daws, uas tuaj yeem muab faib ua cyanide plating tov thiab cyanide dawb plating tov raws li lawv cov khoom.Cyanide zinc plating tov muaj qhov zoo dispersing muaj peev xwm thiab npog muaj peev xwm, txheej txheej crystallization yog du thiab ceev faj, kev ua haujlwm yog yooj yim, daim ntawv thov ntau yog dav, thiab nws tau siv rau hauv ntau lawm ntev.Txawm li cas los xij, raws li cov txheej txheem plating muaj cov tshuaj lom heev cyanide, cov pa tawm hauv cov txheej txheem plating ua rau muaj kev phom sij rau cov neeg ua haujlwm noj qab haus huv, yog li cov dej khib nyiab yuav tsum tau kho nruj me ntsis ua ntej tso tawm.
Post lub sij hawm: 06-04-22