Corrosion Ib puag ncig ntawm Sluice Gate Thiab Cov Yam Tseem Ceeb cuam tshuam rau Corrosion

Corrosion ib puag ncig ntawm steel qauv sluice rooj vag thiab yam cuam tshuam rau corrosion:

Corrosion ib puag ncig ntawm steel qauv sluice rooj vag

Qee qhov steel qauv sluice rooj vag thiab steel qauv nyob rau hauv kev txuag dej thiab hydropower tej yaam num yog immersed nyob rau hauv ntau yam dej zoo (seawater, dej tshiab, industrial wastewater, thiab lwm yam) rau lub sij hawm ntev; Qee qhov feem ntau nyob hauv qhov chaw ntub dej vim qhov hloov pauv ntawm cov dej los yog lub qhov rooj qhib thiab kaw; qee qhov yuav raug cuam tshuam los ntawm kev kub ceev dej ntws thiab kev sib txhuam ntawm cov av, cov khib nyiab ntab thiab dej khov; Ib feem ntawm cov dej saum npoo av los yog saum cov dej kuj raug cuam tshuam los ntawm qhov chaw ntub dej ntawm cov dej evaporation thiab txaws dej pos huab; Cov qauv ua haujlwm hauv huab cua kuj cuam tshuam los ntawm tshav ntuj thiab huab cua. Vim tias qhov chaw ua haujlwm ntawm lub rooj vag hydraulic tsis zoo thiab muaj ntau yam cuam tshuam, nws yog ib qho tsim nyog los tshuaj xyuas qhov cuam tshuam corrosion.

Corrosion yam

(1) climatic yam tseem ceeb: dej ib feem ntawm steel qauv sluice rooj vag yog ib qho yooj yim rau corroded los ntawm lub hnub, los nag thiab huab cua.

⑵ Cov txheej txheem saum npoo ntawm steel qauv: roughness, mechanical puas, qhov, vuam tsis xws luag, qhov khoob, thiab lwm yam muaj kev cuam tshuam zoo rau corrosion.

(3) kev ntxhov siab thiab deformation: qhov ntau dua qhov kev ntxhov siab thiab deformation, qhov corrosion tsis zoo.

(4) dej zoo: cov ntsev cov ntsiab lus ntawm cov dej tshiab yog tsawg, thiab corrosion ntawm lub rooj vag sib txawv nyob ntawm seb nws cov tshuaj muaj pes tsawg leeg thiab cov pa phem; Seawater muaj ntsev cov ntsiab lus siab thiab zoo conductivity. Seawater muaj ntau cov chloride ions, uas yog corrosive heev rau hlau. Qhov corrosion ntawm steel rooj vag hauv dej hiav txwv yog qhov hnyav dua li hauv dej tshiab.