Q1: Dab tsi yog cov kev ntsuas corrosion corrosion rau 12cr1movg steel kav dej?
Aluminiing kho (thickness 0.1-0.2mm) yog siv nyob rau hauv cov chaw kub-. Epoxy Zinc-nplua nuj primer (80μm) + silicone topcoat (60μm) yog siv nyob rau hauv cov chaw tsawg. Lub 3pe anti-corrosion txheej (3 hli tuab) yog siv rau cov kav dej tawg. Thermal txau nrog lub npib tsib xee-based alloy tej zaum yuav suav tau rau qhov tshwj xeeb rau kev xeb ib puag ncig. Nquag siv cov kev kub ntxhov-xeb-xeb roj teeb kom tiv thaiv cov kav dej tsis sib xws.
Q2: Yuav ua li cas tuaj yeem ua rau muaj kev kub ntxhov ntawm 12cr1Movg cov kav hlau kav hlau hluav taws xob?
Txwv ntsuas ntsuas phab ntsa tuab (ultrasonic tuab ntawm cov tib neeg). Siv endoscope kom tshuaj xyuas lub corrosion mob ntawm yeeb nkab sab hauv. Coj cov hnoos qeev thiab txheeb xyuas cov tshuaj oxide cov tuab thiab muaj pes tsawg leeg. Saib xyuas kev hloov pauv hauv cov kev ua haujlwm (piv txwv li, nce siab tau nce siab yuav qhia corrosion). Tsim kho cov databion database los twv seb cov haujlwm pabcuam ntxiv.
Q3: Yuav ua li cas yuav tsum muaj 12cr1Movg cov kav dej steel yuav tswj xyuas thaum kaw?
Los ntawm qhuav cov yeeb nkab sab hauv los tiv thaiv kev ya raws. Tswj kev tiv thaiv me me nrog kev tiv thaiv nitrogen (purity ntau dua los yog sib npaug rau 99.99%). Nquag xyuas qhov ua tau zoo ib txwm ua rau cov neeg sawv cev (xws li VCI vapor theem xeb inhabitors). Saib xyuas qhov cua kom tiv thaiv kev xeb hauv cov xeb hauv nroog. Yuav tsum muaj kev soj ntsuam ntau dua ua ntej rov ua haujlwm dua.
Q4: Yuav ua li cas yog saum npoo degroms ntawm 12cr1movg steel kav kho?
Cov khawb me (<0.5mm in depth) can be mechanically polished. Deeper defects require repair welding (using the original welding process). Extensive corrosion requires pipe replacement. The repaired area requires reheat treatment. After repair, quality must be verified through nondestructive testing.
Q5: Yuav ua li cas tuaj yeem ua haujlwm lub neej ntawm 12cr1Movg cov kav dej hlau txuas ntxiv?
Nruj tswj cov haujlwm tsis ua haujlwm (qhov kub thiab siab hloov kho). Ua kev tshuaj xyuas kev coj noj coj ua thiab ua tau zoo kev ntsuas. Ntes sai sai thiab chaw nyob thaum ntxov tsis meej. Zam kev kub thiab ntau dua kev ua haujlwm. Tsim kom muaj kev tswj hwm kev tiv thaiv kev tiv thaiv kev tiv thaiv.
