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 kulula ukugqwala phambi kokuba passivation, kodwa hayi emva passivation. Umzekelo, intsimbi kungekudala ukunyibilika kwi dilute nitric acid, kodwa isenzeko sokunyibilika kwi asidi nitric axinaniswe phantse ayeke ngokupheleleyo; Aluminiyam ayizinzanga kwi dilute nitric acid, kodwa izitya aluminiyam ingasetyenziselwa ukugcina concentrated zemichiza nitric acid phenome.
Umgaqo we-passivation
Umgaqo passivation inokuchazwa ithiyori ifilimu obhityileyo, oko kukuthi, kucingwa ukuba passivation ngenxa intsebenziswano phakathi metal kunye medium oxidizing, nto leyo eya kuvelisa kakhulu obhityileyo (malunga ne-1nm), ashinyeneyo, ifilimu passivation igqunywe kakuhle phezu komhlaba metal, leyo inokudityaniswa ngokuqinileyo phezu komhlaba metal. 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 yokugqithisa isikrufu:
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
