Ọ na-tumadi iji ígwè ọkpọkọ, nke na-adịkarị mfe corrosion mmeghachi omume, na e nwere ụfọdụ zoro ezo ihe ize ndụ na ngwá mebiri mgbe corrosion.Mgbe o wepụsịrị ụdị mmanụ ọ bụla, nchara, ọnụ ọgụgụ, ntụpọ ịgbado ọkụ na unyi ndị ọzọ, ọ nwere ike imeziwanye nguzogide corrosion nke ígwè.

Ọ bụrụ na e nwere unyi n'elu nkeigwe anaghị agba nchara, ekwesịrị ịsacha ya n'ụzọ igwe wee wetuo ya.Ọnụnọ nke griiz n'elu ga-emetụta àgwà pickling na passivation.N'ihi nke a, enweghị ike ịhapụ degreasing.Ị nwere ike iji lye, emulsifiers, organic solvents na uzuoku.

Passivation bụ usoro ikpeazụ na ihicha kemịkalụ na bụ isi nzọụkwụ.Ebumnuche ya bụ iji gbochie mmebi nke ihe.Dị ka ihe atụ, mgbe a pickled ji esi mmiri ọkụ, na-asa na mmiri, na itucha, metal elu dị ọcha nke ukwuu, na-arụ ọrụ nke ukwuu, na-adị mfe n'okpuru corrosion, n'ihi ya, ọ ga-abụ passivated ozugbo na-emepụta ihe na-echebe ihe nkiri na kpochara metal elu iji belata. corrosion.