Simbi isina simbi ine hushoma hwe10.5% chromium, iyo inoumba mutete, usingaonekwe, uye unonamira zvakanyanya oxide layer pamusoro pesimbi inonzi "passive layer."Iyi passive layer ndiyo inoita kuti Stainless simbi isanyanya kusimba ngura nekuora.
Kana simbi ikasangana neokisijeni nehunyoro, chromium iri musimbi inopindirana neokisijeni iri mumhepo kuumba chidimbu chitete chechromium oxide pamusoro pesimbi.Iyi chromium oxide layer inodzivirira zvakanyanya, sezvo yakagadzikana uye haiputsi nyore nyore.Nekuda kweizvozvo, inonyatso kudzivirira simbi iri pasi payo kuti isasangana nemhepo uye unyoro, izvo zvinodiwa kuti ngura iitike.
Iyo passive layer yakakosha pakudzivirirwa kwekuora kwesimbi isina tsvina, uye huwandu hwechromium musimbi hunoratidza kugona kwayo kuramba ngura uye ngura.Yepamusoro chromium yemukati inoguma mune imwe inodzivirira passive layer uye zvirinani corrosion resistance.Pamusoro pezvo, zvimwe zvinhu zvakaita senickel, molybdenum, uye nitrogen zvinogona zvakare kuwedzerwa kusimbi kuti ivandudze kusakara kwayo.
Nguva yekutumira: Feb-15-2023