Dab tsi yog cov tswv yim tiv thaiv corrosion rau Q215 steel yeeb nkab hauv cov chaw sib txawv?
Hauv cov cheeb tsam cheeb tsam cheeb tsam cheeb tsam ib puag ncig, kub-dip galvanizing tuaj yeem muab ntau dua 10 xyoo ntawm kev tiv thaiv. Hauv cov chaw muaj kuab lom lossis thaj chaw ntug hiav txwv, nws raug nquahu kom siv epoxy resin txheej + galvanizing muaj kev tiv thaiv. Thaum faus av nyob hauv av, txhim kho kev tiv thaiv corrosion (xws li 3Pe los tiv thaiv corrosion) yog yuav tsum tau. Hauv qhov kub ib puag ncig, muaj kub resistant anti-corrosion txheej (xws li Silicone txheej) yuav tsum tau xaiv. Hauv cov tshuaj tshwj xeeb tshuaj corrosion, kev tiv thaiv tshwj xeeb xws li ob lub hnab yas lossis cov fiberglass yuav tsum tau txiav txim siab.
Yuav ntsuas kev ua haujlwm li cas ntawm Q215 steel yeeb nkab galvanized txheej?
Raws li cov tuab ntawm galvanized txheej, txhua micron ntawm zinc txheej tuaj yeem tiv thaiv rau 1-2 xyoo hauv ib puag ncig huab cua. Lub tshuab tshuaj ntsev yuav nrawm nrawm ntawm kev ntsuam xyuas ntawm corrosion tsis kam ntawm galvanized txheej. Nquag xyuas lub xeev saum npoo ntawm zinc txheej, thiab cov tsos ntawm cov xeb dawb yog lub teeb liab rau kev tiv thaiv. Ib puag ncig qib corrosion (ISO 9223 tus qauv) yog qhov tseem ceeb siv rau kev ntsuam xyuas lub neej pabcuam. Lub neej pabcuam tiag tseem yuav tsum xav txog qhov tseem ceeb xws li kub siab, av noo, thiab purnutant concentration.
Dab tsi yog cov txheej txheem sib xws rau corrosion nrhiav ntawm Q215 steel kav?
Kev kuaj pom yog qhov tseem ceeb tshaj plaws, tsom mus rau thaj chaw corrosion-prone xws li welds thiab pob qij txha. Ultrasonic thickness gauges tuaj yeem ntsuas qhov chaw seem uas seem ntawm cov yeeb nkab phab ntsa. Electrochemical cov txheej txheem (xws li Polarization Kuj Tseem Ceeb) tuaj yeem ntsuas tus nqi xeb. Infrared thermal cov kev xav tau tuaj yeem ntes cov teeb meem corrosion hauv thaj chaw zais. Rau lub ces taws tseem ceeb, cov ntes neeg ntse (npua) tuaj yeem siv rau kev soj ntsuam sab hauv.
Dab tsi yog kev kho cov thev naus laus zis rau hauv zos corrosion ntawm q215 steel kav?
Cov cheeb tsam me me corrosion tuaj yeem kho los ntawm cov kev sib tsoo txhua yam thiab tom qab ntawd vuam. Rau pitting pits, lawv tuaj yeem raug ntxuav tawm thiab muaj cov tshuaj tiv thaiv kev siv hlau. Thaj chaw thaj chaw loj tuaj yeem txhawb nqa los ntawm patching steel daim hlau. Polymer kho cov ntaub ntawv (xws li cov ntaub ntawv fiberglass sib xyaw) yog qhov tsim nyog rau kev kho sai sai. Tom qab kho, tiv thaiv kev kho mob corrosion corrosion yuav tsum tau ua dua kom ntseeg tau tias kev tiv thaiv txuas ntxiv.
Dab tsi yog cov tshuaj tiv thaiv xeb rau Q215 tus kav hlau steel thaum lub sijhawm cia?
Sab hauv tsev cia yuav tsum cia ib puag ncig qhuav thiab cov txheeb ze cov av noo hauv qab 60%. Thaum khaws cia rau hauv cov huab cua qhib, nws yuav tsum tau tsa thiab them los tiv thaiv cov dej hauv corrosion. Cov kaus mom tiv thaiv yuav tsum muab nruab rau ntawm cov yeeb nkab xaus kom tiv thaiv xeb ntawm kev txiav. Nquag kuaj xyuas qhov chaw ntawm cov kav hlau khaws cia kom pom xeb hauv lub sijhawm. Nws raug nquahu kom tawg anti-xeb roj lossis vapor theem xeb inhitoritor ntawm cov kav hlau khaws cia ntev.
