Corrosion inhengo yechiitiko umo zvinhu zvinoitwa nemakemikari kana electrochemical maitiro nezvinhu zvakatenderedza, zvichikonzera kuparadzana. Kunyangwe muhupenyu hwedu hwezuva nezuva, kana kugadzirwa kwezuva nezuva, ngura "simbi" kunogona kuoneka kwese, kubva kudiki screw corrosion, mota hombe, ndege, madhiri uye zvimwe zvezvikamu. Kuora hakuzogone kukonzera kurasikirwa kwehupfumi, uye kutotungamira kune tsaona dzekuchengetedza, kukosha kweanti-kurwisa hakufanirwe kurerutswa.
Mumigodhi yemubhedha weiyo substrate, yekutanga yekuita layer ichagadzirwa. Nekuda kwekuvapo kweokisiogeni mumhepo, iyo yekugadzirisa inowanzoitika muchimiro chenzara uye saka inozivikanwa zvakare seyekutanga yefoni (pof). Iyi denderedzwa inowanzo kutetepa uye pakutanga inodzivirira zvimwe corrosion.
Pamusoro peiyo nzira yekuita, zvinhu zvinounganidza mune adsorbed zviyero. Kazhinji yekutanga imvura, iyo, nekuda kweiyo amphoteric hunhu hwemhando yerudzi rwakawanda Iyi denderedzwa immisorption layer, iyo yakasungwa zvine simba uye yakaoma kunyungudutswa. Iyo Chemisorption Layer inoteverwa zvakanyanya neyekunyararidzira adsorption layer, iyo ine midziyo yemanyoreri inosunga uye inotsiviwa nyore nyore.
Iyo yekutanga nzombe yefirimu ndiyo yakanyanya kukosha yeiyo corrostion kuramba, iyo inokakavara iyo firimu, iyo yakasimba kuderera, iyo kudzikisira kwakanyanya. Mune mamwe mazwi, dziviriro yekora inofanira kutangwa panguva yekuumbwa uye kusimbiswa kweiyo yekutanga oxide firimu (pof). Zvichienderana nezvinhu zvesimbi, zvinowedzera (semuenzaniso surfacts, vamiririri vedox) vanodiwa. Corros Inotanga nekuora kweiyo yekutanga oxide firimu, iyo inokwanisika zvakanyanya kuitika mune zvigadzirwa zveSimbi
Corros yakajairika muhupenyu ine akasiyana siyana marudzi akasiyana ekutaura, ngatitarisei kune anenge anenge anenge anenge anenge anongotevera marudzi eora.
1. Kupararira Korosion:Iyo simbi inoiswa pasi pekutenderera ichangoda kufanana pamusoro. Ndiwo maitiro akajairika ekubatana uye anowanzo kukonzerwa nemvura kana yakasviba mweya.
2. Crevice Corrosion:MaClucices pakati pesimbi kana nhengo dzerudzi dzinogona kutungamira mukudyidzana zvakanyanya nekuti maElectrolyte anochengetwa neCapillary chiito uye anogona kuburitsa mutsauko wakakura wekusungwa. Izvi zvinogona kudzivirirwa zvakanyatso kudzivirirwa nekugadzira optimization matanho.
3. Bata Corrostion:Electrochemical Corrosion inokonzerwa nesimbi mbiri dzisingaenzaniswi dzinoenderana neyako imwe neimwe nguva imwe chete muElectrolyte, neimwe yesimbi inogadzirisa zvakanyanya nekukurumidza. Inogona kudzivirirwa nekusarudza zvinhu zvakakodzera kana kukanganisa maitiro pakati pezvisikwa.
4. Pamba:Piting mhinduro mukugadzirisa, cratering kana kuputika. Izvo zvinowanzo kukonzerwa nekukanganisa kukuvadza kune iyo yekudzivirira, senge pores mune yekuvhara kana chloride kugura pane iyo passivation layer.
5. Kubatanidza Corrostion:Kunyanya kuerera cr uye Crni Austenitic Simbi mumiganhu yezviyo yakaiswa, kupesana uku kuchaita kuti chisungo pakati pezviyo kushaiwa simba kwazvo. Kubatana kwakakomba kunogona kuita kuti simbi ihurere simba uye ductility, kupwanya pasi peyakajairwa kurova, kurapa kwakakodzera kwekupisa ndiko kudzivirira kupindirana kwekunyepedzera kweiyo premison.
6. DEW-PONTER CORROSIon:DEW-PUNTER CORROSION inoreva kune yakawiswa Steam nekuda kwekutonhora uye kutonhora mumvura, uye simbi isina kujairika, uye drni isina kuchengetedzwa kusvika kune yakasimba yekudzvanywa
7. STRESS CORROPION KUKANGANYA:Muzvinyorwa zvinokatyamadza, vachiri pasi pekunetseka kuti zvinhu zvacho zvichagadzira marara, kunyanya mu chlorine uye yakasimba alkali mhinduro, ichatungamira kuCRNASitic Steel mukati meiyo kusagadzikana curostion kupaza.
Kutumira Nguva: May-21-2024