Cov kav dej yog ib qho tseem ceeb ntawm cov kav dej, siv rau kev thauj cov kua, gases, thiab txawm tias cov khoom siv. Ob hom yeeb nkab siv hauv cov kav dej yog cov yeeb nkab galvanized thiab carbon steel yeeb nkab. Thaum ob qho tib si ua haujlwm tib lub hom phiaj, lawv txawv ntawm lawv cov khoom thiab cov khoom. Hauv tsab xov xwm no, peb yuav tshawb txog qhov sib txawv ntawm cov yeeb nkab galvanized thiab carbon steel yeeb nkab.
Galvanized yeeb nkab
Galvanized yeeb nkab yog steel yeeb nkab uas tau coated nrog ib txheej ntawm zinc los tiv thaiv xeb. Cov txheej txheem ntawm galvanizing yuav tsum siv cov zinc txheej tiv thaiv rau cov yeeb nkab steel los ntawm immersing nws nyob rau hauv ib da dej ntawm molten zinc. Qhov no tsim ib qho kev thaiv ntawm cov hlau thiab ib puag ncig, tiv thaiv corrosion thiab xeb.
Galvanized yeeb nkab feem ntau yog siv rau hauv cov kav dej siv vim nws ruaj khov, yooj yim rau nruab, thiab pheej yig. Txawm li cas los xij, nws muaj qee qhov tsis zoo. Piv txwv li, zinc txheej tuaj yeem hnav thaum kawg, ua rau cov hlau tsis muaj zog rau xeb thiab xeb. Tsis tas li ntawd, cov kav dej galvanized tej zaum yuav muaj qhov rougher sab hauv uas tuaj yeem tsim kev sib txhuam thiab txwv cov dej ntws.
Carbon Steel Yeeb Nkab
Cov pa roj carbon steel yeeb nkab yog tsim los ntawm cov hlau uas feem ntau muaj cov pa roj carbon ntau thiab cov khoom me me xws li manganese, phosphorus, thiab sulfur. Nws yog cov khoom siv ruaj khov thiab ruaj khov uas feem ntau siv hauv cov kav dej, kev tsim kho, thiab kev tsim khoom.
Tsis zoo li galvanized yeeb nkab, carbon steel yeeb nkab tsis coated nrog ib txheej ntawm zinc. Qhov no txhais tau hais tias nws muaj kev cuam tshuam ntau dua rau xeb thiab corrosion, tshwj xeeb tshaj yog nyob rau hauv ib puag ncig uas muaj cov dej noo los yog raug rau cov khoom corrosive. Txhawm rau tiv thaiv xeb, cov kav dej carbon steel yuav raug coated nrog cov txheej txheem tiv thaiv corrosion xws li epoxy lossis polyethylene.
Cov pa roj carbon steel yeeb nkab muaj nyob rau hauv cov qib sib txawv thiab cov kev qhia tshwj xeeb, txhua tus tsim los rau kev siv tshwj xeeb. Piv txwv li, cov yeeb nkab uas muaj zog carbon steel yog siv rau hauv cov khoom siv xws li txuas hniav thiab cov tsev, thaum cov pa roj carbon steel yeeb nkab yog siv rau hauv cov ntawv thov uas cov yeeb nkab yuav raug rau qhov kub thiab txias.
Xaus
Hauv cov ntsiab lus, qhov sib txawv tseem ceeb ntawm cov yeeb nkab galvanized thiab carbon steel yeeb nkab yog cov yeeb nkab galvanized yog coated nrog ib txheej ntawm zinc los tiv thaiv xeb, thaum carbon steel yeeb nkab yog ua los ntawm cov hlau uas muaj cov pa roj carbon feem ntau thiab tuaj yeem xeb yog tias tsis tiv thaiv. Ob hom kav dej muaj lawv qhov zoo thiab qhov tsis zoo thiab siv ntau yam kev siv nyob ntawm lawv cov khoom thiab tsim nyog rau kev ua haujlwm ntawm tes.