Emva kokuba isinyithi siphathwa nge-oxidizing medium, izinga lokubola kwentsimbi liphantsi kakhulu kunelo liyintsimbi yokuqala engaphendulwanga, ebizwa ngokuba yi-passivation yesinyithi.
Ngokubanzi, i-passivation eneneni iguqula umphezulu wesinyithi osebenzayo ube ngumphezulu ongasebenziyo ngokusabela kweekhemikhali zesisombululo se-passivation, ukuze kuthintelwe izinto eziyonakalisayo zangaphandle ukuba zingasabeli nomphezulu wesinyithi kwaye zifezekise injongo yokwandisa ixesha lokurusa kwesinyithi. (Yiyo loo nto imveliso ilula ukugqwala ngaphambi kokugqithisa, kodwa kungekhona emva kokugqithisa. kodwa izitya ze-aluminiyam zingasetyenziselwa ukugcina i-asidi ye-nitric egxininisiweyo.
Umgaqo we-passivation
Umgaqo we-passivation unokuchazwa ngethiyori yefilimu ebhityileyo, oko kukuthi, kuthathelwa ingqalelo ukuba i-passivation ibangelwa yintsebenziswano phakathi kwesinyithi kunye ne-oxidizing medium, eya kuvelisa ifilimu enqabileyo kakhulu (malunga ne-1nm), eshinyeneyo, egqunywe kakuhle. kwindawo yesinyithi, enokuthi ifakwe ngokuqinileyo kwindawo yesinyithi. Le filimu ikhona njengesigaba esizimeleyo, ngokuqhelekileyo i-compound ye-oksijini kunye nesinyithi.
Iyakwazi ukwahlula ngokupheleleyo isinyithi kwi-corrosive medium, kwaye ithintele isinyithi ukuba sidibane ngqo ne-corrosive medium, ukwenzela ukuba isinyithi siyeka ukunyibilika kwaye senze i-passive state ukufezekisa injongo yokuthintela ukubola kunye nomhlwa.
Iimpawu kunye noncedo lwe-passivation:
Isisombululo se-stainless steel passivation asitshintshi ubungakanani, umbala kunye nokubonakala kwezikrufu; Akukho filimu yeoli eqhotyoshelweyo, kwaye ukuxhathisa kwe-corrosion kungcono kwaye kuzinzile (unyango lwe-passivation lolona khetho lungcono lokubuyisela unyango lwendabuko oluchasene ne-corrosion ukucwina ioli e-anti-rust). Akukho mfuneko yezixhobo ezikhethekileyo kunye neemeko zokucubungula ezingqongqo, kuphela izitya zeplastiki ezimbalwa okanye iitanki zensimbi ezingenasici ezifunekayo, kwaye ixabiso liphantsi (i-2/3 ngaphantsi kwe-outsourcing processing); Umsebenzi ulula, ohlangabezana kakhulu neemfuno zamashishini, kwaye uqinisekisa ukuba wonke umntu unokuyenza, wonke umntu unokuyenza, kwaye unokuyenza nanini na. Mane untywilisele izikrufu kwi-brand ye-Senyuan yesisombululo sensimbi engenasici kwimizuzu engama-30 kwiqondo lobushushu begumbi.
Ukunyusa:
Emva kokuba isikrufu sigqithisiwe, ifilimu exineneyo kakhulu enokugqunywa kakuhle iya kwenziwa kumphezulu we-screw, enokwenza isikrufu simelane nomhlwa, ukuya kuthi ga kwiiyure ezingaphezu kwama-500 zovavanyo lwesitshizi setyuwa.
Inkqubo ye-Screw passivation:
Okokuqala hlamba izikrufu-zihlambulule ngamanzi aqukuqelayo-zisebenze-zihlambulule ngamanzi aqukuqelayo-zigqithise (ngaphezu kwemizuzu engama-30) -zihlambulule ngamanzi aqukuqelayo-zihlambulule ngamanzi e-ultrapure-zomise kwaye uzipakishe.
Ixesha lokuposa: Nov-29-2022