Technical parameters ntawm tshuaj twj tso kua mis

1. Raws li ib qho ntawm cov xov xwm muaj zog corrosive, sulfuric acid yog ib qho tseem ceeb ntawm cov khoom siv raw nrog ntau yam kev siv. Lub corrosion ntawm cov ntaub ntawv sib txawv heev nrog txawv concentrations thiab kub ntawm sulfuric acid. Rau cov concentrated sulfuric acid nrog ntau tshaj 80% thiab kub hauv qab 80 degree, carbon steel thiab cam khwb cia hlau muaj corrosion kuj zoo, tab sis lawv tsis haum rau siab - ceev ntws sulfuric acid thiab tsis haum raws li cov ntaub ntawv rau twj thiab li qub; Ordinary stainless hlau xws li 304 (0Cr18Ni9) thiab 316 (0Cr18Ni12Mo2Ti) kuj muaj kev txwv tsis pub siv hauv sulfuric acid media. Yog li ntawd, cov twj tso kua mis thiab cov li qub rau kev thauj cov sulfuric acid feem ntau yog ua los ntawm cov silicon cam khwb cia hlau (nqus nrum thiab txheej txheem) thiab siab alloy stainless hlau (Tsis yog. 20 alloy). Fluoroplastics muaj cov tshuaj sulfuric acid zoo, thiab siv lub twj tso kua mis fluorine lined (F46) yog qhov kev xaiv pheej yig dua.
2. Cov ntaub ntawv hlau feem ntau, suav nrog ntau yam khoom siv hlau tsis zoo, tsis tiv taus hydrochloric acid corrosion. Molybdenum uas muaj silicon hlau tsuas yog siv rau hydrochloric acid hauv qab 50℃thiab 30%. Tsis zoo li cov ntaub ntawv hlau, feem ntau ntawm cov khoom tsis yog{5}}cov khoom siv hlau muaj kev tiv thaiv zoo rau hydrochloric acid, yog li cov twj siv roj hmab thiab cov twj yas (xws li polypropylene, fluoroplastics, thiab lwm yam) yog qhov kev xaiv zoo tshaj plaws rau kev thauj hydrochloric acid.
Feem ntau cov hlau nyob rau hauv nitric acid yog sai corroded thiab puas nyob rau hauv nitric acid. Stainless hlau yog cov khoom siv ntau tshaj plaws nitric acid resistant, uas muaj corrosion kuj zoo rau tag nrho cov concentrations ntawm nitric acid nyob rau hauv chav tsev kub. Nws yog ib qho tsim nyog hais tias stainless hlau uas muaj molybdenum (xws li 316, 316L) tsis tsuas yog tsis muaj corrosion kuj zoo dua rau nitric acid dua li cov hlau tsis zoo (xws li 304, 321), tab sis qee zaum kuj tseem phem dua. Rau siab -kub nitric acid, titanium thiab titanium alloy cov ntaub ntawv feem ntau yog siv.
4. Acetic acid yog ib qho corrosive tshaj plaws ntawm cov organic acids. Ordinary hlau yuav raug kev xeb loj heev nyob rau hauv tag nrho cov concentration thiab kub ntawm acetic acid. Stainless hlau yog ib qho zoo heev acetic acid resistant khoom, thiab 316 stainless hlau uas muaj molybdenum kuj yuav haum rau high kub thiab dilute acetic acid vapors. Rau cov kev xav tau xws li kub thiab siab concentration acetic acid los yog lwm yam corrosive media, siab alloy stainless hlau twj los yog fluoroplastic twj tuaj yeem xaiv.
5.Alkaline (sodium hydroxide) steel yog dav siv nyob rau hauv sodium hydroxide daws hauv qab 80℃thiab nyob rau hauv 30% concentration. Ntau lub tuam txhab tseem siv cov hlau zoo tib yam ntawm qhov kub qis dua 100℃thiab 75%, txawm hais tias corrosion nce, nws muaj kev lag luam zoo. Piv nrog cam khwb cia hlau, zoo tib yam stainless hlau tsis muaj qhov zoo ntawm corrosion kuj rau alkaline tov. Tsuav ib qho me me ntawm cov hlau raug tso cai ntxiv rau qhov nruab nrab, stainless hlau tsis pom zoo. Rau siab -kub alkaline daws, titanium thiab titanium alloys los yog siab alloy stainless hlau feem ntau yog siv.