Tshaj tawm rau 08-09-20181. Txhua txheej ntawm zinc thiab txhuas nyob rau hauv zinc aluminium txheej yog nyob rau hauv ib tug passive lub xeev, thaum lub galvanized txheej tsuas muaj cov passivation txheej ntawm 0.05 ~ 0.2μm ntawm txheej txheej sab nraud;
2. Cov ntawv zinc thiab txhuas hauv zinc aluminium txheej ua si tag nrho lub luag haujlwm ntawm kev tiv thaiv kev txi anode, thaum lub zinc txheej yuav tshwm sim cov khib nyiab ntawm zinc tom qab txheej txheej passivation tau raug puas tsuaj.
3. Cov tshuaj inorganic acid nyob rau hauv cov txheej thiab cov txheej txheem tuaj yeem tiv thaiv cov hlau matrix tib lub sijhawm thaum tiv thaiv zinc thiab txhuas, thaum lub zinc plating tsis.
4. Zinc txheej passivation txheej ntawm 70 ~ 100 ℃ degrees centigrade, lub crystallization ntawm cov dej pib evaporate, ua rau passivation txheej cracking, cuam tshuam rau corrosion kuj ntawm zinc txheej, thiab zinc aluminium txheej ntawm 260 degrees los yog siab dua kub sintering, yog li ntawd. ntawm tej phenomenon.
Post lub sij hawm: Jan-13-2022