Iipateni ze-corrosion zeentsimbi zinokwahlulwa zangamacandelo amabini: I-corrosion ebanzi kunye nokuvela kwendawo. And localized corrosion can be divided into: pitting corrosion, crevice corrosion, galvanic coupling corrosion, intergranular corrosion, selective corrosion, stress corrosion, corrosion fatigue and wear corrosion.
I-corrosion ebanzi ibonakaliswa ngokusula ngokwahlulahlulwe ngokulinganayo kumphezulu wensimbi, ukuze isinyithisile. I-corrosion ebanzi yenzeka phantsi kwemeko apho i-corrossium ephakathi ifikelela kuzo zonke iindawo zentsimbi ehambelana ne-7, kwaye ukwakhiwa kunye nombutho wesinyithi kuneyunifomu yentsimbi ikhulu.
Ukuphatha i-urrosion, okwabizwa ngokuba yingcambu yeholethi encinci, luhlobo lwe-corrosion egxile kuluhlu oluncinci lwentsimbi kwaye lunzulu kwipateni yentsimbi.
Ukuhamba ngeemeko zoncedo ngokubanzi dibana nezixhobo, eziphakathi kunye neemeko ze-elektroniki:
1, Ukuthambisa ngokubanzi kwenzeka kwidlelo elilula lomgangatho wensimbi (njengentsimbi engenanto, i-aluminium) okanye umphezulu wensimbi nge-cathodic.
2, Ukuthathwa kwenzeka phambi kwee-ions ezizodwa, ezinjengee-halogn iingonyama kwi-Peperium.
3, ukubetha ukubopha kwento yenzekile kwinqanaba elithile elibalulekileyo elingasentla, elibizwa ngokuba yi-goritation enokubakho okanye amandla okuphuka.
I-Trasion yoThengiso phakathi komntu yinto yentsimbi kwindawo ethile ebonakalayo kwindawo yemida yengqolowa okanye imida yokudla okuziinkozo kufutshane, ukuze ilahleko phakathi kweengqolowa zezinto zokubonisa.
Ukukhetha i-corrosion yokuguqula kubhekisele kwizinto ezisebenzayo kuma-Aflis oQhelekileyo, le nkqubo ibangelwa ukwahluka kwe-electrochemical kwizinto zezakhiwo.
Crevice corrosion is the presence of electrolyte between metal and metal and metal and non-metal constitute a narrow gap, the migration of the medium is blocked when a localized corrosion state.
Ukuqulunqwa kwe-CRVICE YOKUGQIBELA:
1, Unxibelelwano phakathi kwenxalenye ezahlukeneyo zesakhiwo.
2, Kwisinyithi sentsimbi yedipozithi, izinamathiselo, ukuphindezela kunye nezinye iimveliso ze-corrosion akhona.
Ixesha lokuphumla: Mar-15 ukuya ku-2424