1.How yog txheej txheej zoo cuam tshuam rau txheej adhesion?
Yog tias adhesion zoo heev (piv txwv li, tsis muaj txheej picking tom qab kev sib cais, ua kom muaj kev sib cais, cov pa roj oxygen, thiab ntsev, tiv thaiv kab mob ncaj. Txawm hais tias muaj me me tsis xws luag nyob rau hauv galvanized txheej (piv txwv li, cov pinholes), txheej yuav tseem tsim "qhov thib ob" kom qeeb kis tau ntawm corrosion.
Yog tias adhesion tsis zoo (piv txwv li, blistering lossis tev vim precounle ua ntej-}}}}}}}} {(piv txwv li, dabtsi yog khoov thiab txiav), lossis siv. Lub substrate nyob rau hauv tev tawm thaj chaw poob nws kev tiv thaiv thiab nrawm nroos (xeb). Corrosion kuj tuaj yeem sib kis los ntawm qhov chaw ua yeeb yam rau ib puag ncig ntawm Galvanized "), muaj peev xwm txo nws lub neej ntawm ntau dua 50%. (Piv txwv li, Galvanized chev siv sab nraud nrog cov av tsis muaj xeb yuav muaj xeb tsis pub dhau 1-2 xyoos, thaum cov kauj ruam nrog rau 5-10 xyoo lossis ntau dua.)
2.Yuav ua txheej txheej zoo cuam tshuam rau txheej sib xyaw ua ke thiab tuab?
Yog tias cov txheej sib txawv (cov phom sij me me), nws tuaj yeem ua tiav txhua qhov, los tiv thaiv kev tiv thaiv kab mob hauv tiaj, (piv txwv li, xeb ntawm cov npoo thiab tom qab ntawd kis mus rau hauv qhov chaw) tshwm sim los ntawm cov txheej nyias (piv txwv li ploj ntawm cov npoo lossis tuab tsawg dua 2μm).
Yog tias cov txheej yog qhov tsis sib xws (ib nrab nyias nyias lossis tuab heev):
Nyias thaj chaw (piv txwv li, tsawg dua 5μm) yog nquag mus nrawm dua thiab kua muag thaum pib, kev sib tsoo thaum lub sij hawm teeb tsa), poob lawv cov nyhuv tiv thaiv)
Ntau dhau ntawm cov cheeb tsam tuab (piv txwv li, tshaj 30μm) yog nquag "tawg" thiab "bublles" thiab sab nraud "(corrosive media tuaj yeem nkag mus rau hauv substrate);
Tsis tas li ntawd, tsis sib xws tuaj yeem ua rau muaj kev ntxhov siab tsis ncaj ncees thaum lub sijhawm ua haujlwm (piv txwv li stamping), ua rau cov txheej sib tw), ua rau lub pob tw thiab cuam tshuam rau kev ua haujlwm.
3.Yuav ua cov txheej txheem zoo cuam tshuam rau txheej ntom ntom ntom?
Cov txheej txheem ntom ntom (tsis muaj npuas los yog xeb hauv cov dej npau lossis ntsev kom huv) qhia txog cov qauv sab hauv uas tsis muaj micropores. Qhov no ua rau nws nyuaj rau kev tawm xov xwm corrosive zoo li ya raws thiab oxygen mus rau txheej txheem thiab ncav cuag lub substrate. Qhov no ua kom muaj kev tiv thaiv ntev-} Lub sijhawm tiv thaiv txawm tias nyob rau hauv qhov chaw huab cua (xws li cov dej hiav txwv) lossis xws li cov chaw muaj xwm txheej) ib puag ncig.
Yog hais tias cov txheej tsis zoo ntom (piv txwv li, vim muaj txheej txheem tsis txaus ntseeg nyob rau hauv kev kho kom tsis tiav lossis siv cov pinholes lossis tsa ceg rau hauv txheej),
Pinholes lossis pores tuaj yeem ua "cov txheej corrosion" los ntawm kev tawm tsam corrosion (xws li pittingized corrosion (xws li paltings corrosion (qhov chaw pa taws los ntawm corrosion thawb txheej txheej upward txheej upward txheej upward txheej rau upward txheej upward txheej upward
Cov neeg tsis sib haum tau tuaj yeem yooj yim tsim "kev ntxhov siab cov ntsiab lus," uas tuaj yeem ua rau tawg rau hauv cheeb tsam corrosion. Thaum muaj mob hnyav, pom xeb yuav tshwm nyob rau hauv 3-6 lub hlis.
4.How yog txheej txheej zoo cuam tshuam rau txheej hardness thiab coj kev tiv thaiv?
Yog hais tias cov txheej muaj lub hardness siab (piv txwv li, xaum xim ntau dua lossis muaj kev sib raug zoo thaum siv (xws li kev sib tsoo ib txwm muaj nrog kev sib tsoo sab nrauv sab nrauv). Cov txheej yog tsawg dua qhov uas khawb, kev puas tsuaj, lossis tev, tswj kev tiv thaiv kev tiv thaiv tau ntev.
Yog hais tias cov txheej muaj tsawg hardness (piv txwv li, xaum qhuav
Thaum lub sijhawm ntev - siv siv (piv txwv li, cov txheej txheem hauv qab " Qhov no tsis yog cuam tshuam rau cov tsos tab sis kuj ua rau xeb ntawm qhov pib tshwm sim, ua kom luv rau cov khoom lag luam li cas.
5.Yog ua cov txheej txheem zoo cuam tshuam rau txheej huab cua tiv thaiv tsis kam?
Yog tias cov txheej muaj huab cua zoo heev (piv txwv li, fluorocarbon tsho uas tsis muaj qhov tsis muaj peev xwm tseem ceeb lossis xaum tom qab cov laus nrawm nrawm):
Nyob rau hauv ib puag ncig sab nraum zoov (piv txwv li lub ru tsev nyob sab nraud thiab cov kab hlau), nws tuaj yeem tiv thaiv cov xim kub (tiv thaiv cov txheej txheem kub (tiv thaiv txheej tawg), ua rau lub neej pabcuam txog li 15-20 xyoo.
Hauv cov chaw muaj kev muaj zog (piv txwv li, cov chaw muaj tshuaj lom neeg), nws tuaj yeem tiv thaiv cov kua qaub, kev tiv thaiv txheej txheej loj), tswj cov khoom tiv thaiv.
Yog hais tias cov txheej muaj huab cua tsis zoo (piv txwv li, dog dig polyester txheej uas tsis tau raws cov qauv thiab muaj UV tsis kam):
Thaum siv cov txheej sab nraud, cov txheej sib txawv yuav ploj (xim sib txawv ntau dua lossis sib npaug rau 3 qib) thiab xaum xim (pom hmoov thaum rub tawm) tsis pub dhau 1-2 xyoos. Qhov kev cheesking poob nws ntom ntom, tso cai rau corrosive media kom nkag tau yooj yim.
Nyob rau hauv cov dej kub thiab huab cua nyob rau sab qab teb Suav teb), qhov txheej xim tsis kam, nws thiaj li muab cov xeb noo, ua rau xeb sai li sai.