SGCC yog dab tsi?
SGCC stands rau kub-dip galvanized txias- dov steel kauj, hom txias- dov steel ntawv coated nrog zinc.
Lub hauv paus chiv keeb ntawm lub npe SGCC yog dab tsi?
SGCC yog ib qho kev tsim steel hauv Japanese Industrial Standard (JIS G 3302), qhov "S" sawv cev rau steel, "G" sawv cev rau galvanized, "C" sawv rau txias- dov, thiab "C" sawv rau kev lag luam siv.
Dab tsi yog cov khoom tseem ceeb ntawm SGCC daim ntawv?
Cov khoom tseem ceeb yog hlau (Fe), thiab txheej txheej yog zinc (Zn). Cov ntsiab lus carbon (C) yog kwv yees li 0.15%, silicon (Si) cov ntsiab lus yog 0.05% -0.6%, thiab manganese (Mn) cov ntsiab lus tsis tshaj 2.0%. Nws kuj muaj cov kab me me xws li txhuas (Al), titanium (Ti), thiab chromium (Cr).
Qhov txawv ntawm SGCC thiab SECC yog dab tsi? SGCC yog kub-dip galvanized steel ntawv nrog cov zinc txheej tuab, feem ntau 40-100μm. Nws muaj zog corrosion kuj, tab sis nws yog nquag tsim zinc vapor thaum vuam. SECC yog electrogalvanized steel ntawv nrog ib txheej zinc txheej, feem ntau 5-15μm. Nws nto yog ilv thiab ntiv tes-resistant, tab sis nws cov corrosion kuj kuj tsis muaj zog.
Cov yam ntxwv ua haujlwm
Dab tsi yog qhov corrosion kuj ntawm SGCC daim ntawv?
Lub zinc txheej ntawm SGCC daim ntawv zoo cais cov hlau los ntawm cov xov xwm corrosive, ua tau zoo heev nyob rau hauv qhov chaw ntub lossis corrosive, muab 30-50 xyoo ntawm kev tiv thaiv xeb.