Nyob rau hauv kev nruam tu siab ntawm huab ib puag ncig kev hloov kho tau nyob rau hauv kev lag luam niaj hnub, cov khoom siv corrosion tau dhau los ua ib qho tseem ceeb hauv kev ntsuas lub neej thiab cov kev ntseeg tau. Npib tsib xee thiab nws cov ntaub ntawv alloy, nrog lawv zoo heev corrosion, thiab tau siv dav hauv cov petrochemicals xws li petrochemicals, marine engineering, thiab betbuilding.
For material suppliers, in-depth understanding of the behavior mechanism of nickel materials in various corrosive media and clear communication of their engineering application value to customers are key links in promoting the landing of high value-added orders.
1. Npib Nickel lub ntuj tsis kam los ntawm nws cov kev sib cais
Nickel cov ntaub ntawv ntom ntom thiab ruaj khov rau cov yeeb yaj kiab (nio) hauv huab cua lossis oxidizing ib puag ncig. Cov yeeb yaj kiab no muaj cov nplaum muaj zog heev thiab muaj peev xwm ua tau zoo sib cais sab nraud ntawm kev tawm tswv yim. Piv nrog cov hlau xws li hlau lossis tooj liab lossis tooj liab, uas muaj lub siab tawv muaj zog dua thiab tuaj yeem ua kom muaj zog dua, thiab tuaj yeem rov ua kom sai sai txawm hais tias kev puas tsuaj me ntsis.
Tsis tas li ntawd, Nickel muaj lub ntuj tiv taus rau ntau cov tshuaj lom neeg:
Resistant rau inorganic acids: xws li sulfuric acid thiab phosphoric acid, nws tseem ruaj khov nyob rau ntawm qhov ntsuas kub;
Tiv thaiv rau Alkaline Media: Tshwj xeeb tshaj yog nyob rau hauv concentrated alkaline daws, nws yog qhov zoo dua li steel hlau;
Resistant rau chloride corrosion: zoo tiv thaiv pitting, crevice corrosion thiab kev nyuaj siab corrosion tawg los ntawm chloride ions.
2. Kev tsom xam ntawm kev ua haujlwm hauv cov xov xwm corrosive
1. Acidic ib puag ncig (xws li sulfuric acid thiab hydrochloric acid)
Cov Nickel ntshiab yog tus nyob hauv nruab nrab thiab muaj cov tshuab ua haujlwm ntau ntxiv, thiab nws tuaj yeem siv tau cov kev ua haujlwm hnyav heev xws li cov pa roj acid
2. Alkaline ib puag ncig (xws li Caustic dej qab zib, electrolyte)
Nickel tau ruaj khov heev hauv cov media kev tshaj tawm, tshwj xeeb tshaj yog cov sodium hydroxide thiab ammosion tsis kam ntawm cov hlau ntau tshaj plaws. Cov ntawv thov raug yog suav nrog cov khoom siv hluav taws xob, cov khoom siv hluav taws xob, cov cuab yeej siv nyiaj alkali rov qab, thiab lwm yam.
3. Chloride ib puag ncig (xws li seawater, brine)
Chloride yog "yeeb ncuab ntuj" ntawm kev xeb ntawm ntau cov ntaub ntawv thiab tuaj yeem ua rau muaj kev ntxhov siab ntawm kev tawg. Txawm li cas los xij, siab -}}}} pa dej thiab lwm yam kev ua haujlwm ntawm dej hiav txwv, cov roj kev ua haujlwm uas muaj chloride ions txhua xyoo puag ncig.
III. Kev ua tau zoo hauv kev lag luam tseem ceeb
Petrochemical Kev Lag Luam
Nickel -} Raws alloys feem ntau siv los kho cov xov xwm siab, xws li hydrogen chloride, thiab carbonic kua qaub me ntsis. Nickel alloy khoom siv (xws li tshav kub ua kom sov, reactor cov hlua, thiab cov hlab cua sov) tuaj yeem txuas lub neej ntawm cov cuab yeej thiab txo tsawg zaus. Lawv yog cov ntaub ntawv tseem ceeb txhawb nqa rau cov haujlwm txhim khu kev qha.
Lub nkoj nkoj thiab cov khoom siv marine engineering
Cov tshuaj ntau ntawm chloride ions thiab microbial corrosion thiab microbial corrosion hauv dej hiav txwv uas tsis tshua muaj neeg xav tau ntawm cov hlau. Bolts, cov khoom siv cov khoom siv, thiab cov twj tso kua mis ua los ntawm nickel {}}} {} {} fouling seasing seagater, thiab nce ntxiv kev pabcuam lub neej ntawm nkoj ntu.
Khoom Noj thiab Kev Lag Luam Kev Lag Luam
Txij li thaum Nickel cov ntaub ntawv muaj qhov zoo ntawm corrosion ntawm corrosion ntawm corrosion tsis kam, thiab tsis muaj cov neeg siv dej nag, thiab lwm yam kev xav tau hnyav heev rau cov khoom noj kom huv thiab kua qaub thiab alkali tsis kam.
