1. Ib puag ncig yam tseem ceeb ntawm corrosion
Latitude thiab longitude, kub, av noo, tag nrho cov hluav taws xob (uv siv, hnub ci ntev), dej nag, pH nqi, cua ceev, cua kev taw qhia, corrosive sediment (C1, SO2).
2. Kev cuam tshuam ntawm lub hnub ci
Lub hnub ci yog electromagnetic yoj, raws li lub zog thiab zaus ntawm theem tau muab faib ua gamma rays, X-rays, ultraviolet, pom lub teeb, infrared, microwave thiab xov tooj cua tsis.Lub ULTRAVIOLET spectrum (UV) belongs rau cov hluav taws xob ntau zaus, uas yog kev puas tsuaj ntau dua li lub zog qis.Piv txwv li, peb paub tias qhov chaw tsaus ntawm daim tawv nqaij thiab qog nqaij hlav ntawm daim tawv nqaij yog tshwm sim los ntawm lub hnub ultraviolet rays.UV kuj tseem tuaj yeem rhuav tshem cov tshuaj sib txuas ntawm cov khoom, ua rau nws tawg, nyob ntawm qhov wavelength ntawm UV thiab lub zog ntawm cov tshuaj sib txuas ntawm cov khoom.X-rays muaj cov nyhuv nkag mus, thiab gamma rays tuaj yeem rhuav tshem cov tshuaj lom neeg thiab tsim cov ions dawb, uas ua rau tuag taus rau cov organic teeb meem.
3. Qhov cuam tshuam ntawm qhov kub thiab av noo
Rau cov hlau txheej, kub thiab av noo ua rau oxidation cov tshuaj tiv thaiv (corrosion).Cov qauv molecular ntawm cov xim rau ntawm qhov chaw ntawm cov xim txheej board yog yooj yim rau kev puas tsuaj thaum nws nyob rau hauv qhov kub thiab txias ib puag ncig ntev.Thaum cov av noo siab, qhov saum npoo yog ib qho yooj yim rau condensation thiab electrochemical corrosion zoo dua.
4. Kev cuam tshuam ntawm ph ntawm kev ua haujlwm corrosion
Rau hlau deposits (zinc los yog txhuas) lawv yog tag nrho cov amphoteric hlau thiab yuav corroded los ntawm muaj zog acids thiab bases.Tab sis sib txawv hlau acid thiab alkali tsis kam muaj peev xwm muaj nws tus kheej cov yam ntxwv, galvanized phaj alkaline kuj muaj zog me ntsis, aluminium zinc acid kuj muaj zog me ntsis.
5. Qhov cuam tshuam los nag
Kev tiv thaiv corrosion ntawm cov dej nag los pleev xim rau lub rooj tsavxwm nyob ntawm cov qauv ntawm lub tsev thiab cov kua qaub ntawm cov dej nag.Rau cov tsev uas muaj txoj kab nqes loj (xws li cov phab ntsa), cov dej nag muaj kev tu tus kheej los tiv thaiv kev xeb ntxiv, tab sis yog tias cov khoom raug molded nrog txoj kab nqes me me (xws li vov tsev), cov dej nag yuav tso rau ntawm qhov chaw rau ib qho chaw. ntev, txhawb txheej txheej hydrolysis thiab dej nkag.Rau cov pob qij txha los yog txiav ntawm cov hlau phaj, muaj dej ua rau muaj peev xwm ntawm electrochemical corrosion, kev taw qhia kuj tseem ceeb heev, thiab cov kua qaub los nag hnyav dua.
Lub sij hawm xa tuaj: Jun-10-2022