Cov khoom ntawm qhov muab tub lim tau muab faib ua peb pawg: ceramic, hlau thiab yas.
(1) Cov tshuab lim tej hub
Tej hub lim muaj zoo corrosion kuj thiab kub kuj. Tej hub muab tub lim yog pheej yig thiab muaj cov khoom zoo saum npoo av. Lawv nkig thiab tsis yooj yim. Nws nquag siv hauv cov txheej txheem xws li kev nqus pa, kev ntxuav roj, thiab kev ua kua tawm.
(2) cov khoom lim yas
Cov khoom siv ntawm cov yas ntim khoom lag luam feem ntau suav nrog polypropylene (PP), polyethylene (PE) thiab polyvinyl chloride (PVC), thiab lwm yam. Feem ntau, polypropylene siv nyob hauv Suav teb. Lub tshuab nqus roj hmab muaj cov tshuaj tiv thaiv zoo corrosion thiab tuaj yeem tiv taus qhov kev xeb ntawm cov kua qaub inorganic acids, alkalis thiab cov kuab tshuaj organic. Nws muaj qhov kub thiab txias tsis zoo thiab tuaj yeem siv tau kub siab dua 100 ° C rau lub sijhawm ntev.
Yas muab tub lim yog lub teeb hauv qhov hnyav, tsis tshua muaj tus nqi, muaj cov tawv zoo, kev cuam tshuam, tsis yooj yim, thiab tuaj yeem ua rau cov qauv ntsa-nyias. Nws muaj flux loj loj thiab txo qis siab, thiab feem ntau siv hauv cov khoom siv xws li nqus, nqus dej, tshem tawm, thiab hmoov av tshem tawm.
Qhov tsis zoo ntawm cov tshuab ntxaws yas yog qhov tsis zoo saum npoo av qhov kev ua tau zoo, tab sis qhov kev ua haujlwm saum npoo av tuaj yeem ua kom zoo dua tuaj ntawm kev kho kom zoo.
(3) Cov hlau lim
Lub tshuab raj hlau tuaj yeem ua ntau yam ntaub ntawv, thiab xeb yog qhov kev xav tseem ceeb thaum xaiv.
Cov pa roj carbon steel cav tsis tshua muaj nqi thiab muaj cov nplaim dej zoo nkauj. Rau cov xim uas tsis xeb lossis cov txheej txheem tsis zoo, yuav tsum muab rau lawv siv.
Stainless steel packing muaj muaj zog tiv thaiv corrosion, thiab feem ntau tuaj yeem tiv taus qhov kev xeb ntawm cov tshuaj muaj feem tsis yog Cl-, tab sis nws cov nqi tau siab dua, thiab nws cov txheej txheem ntawm kev ntub dej tsis zoo. Nyob rau qee lub sijhawm tshwj xeeb (xws li lub tshuab nqus tau qhov tseeb nyob rau hauv qhov nruab nrab ntawm cov tshuaj tsuag kom tsawg dua cov kev sib xyaw ua kom tiav), qhov saum npoo yuav tsum tau kho kom ua tiav cov txiaj ntsig zoo.
Cov ntawv sau los ntawm cov titanium, tshwj xeeb cov hlau tsis xeb hlau thiab lwm cov ntaub ntawv muaj nqi kim, thiab feem ntau tsuas yog siv nyob rau hauv cov ntaub ntawv uas muaj kuab heev.
Feem ntau hais lus, cov hlau ntim tau tuaj yeem ua rau cov phab ntsa nyias nyias, uas muaj cov flux loj, roj tsis kam, thiab cuam tshuam loj. Lawv tuaj yeem siv hauv qab kub, tiv thaiv kev kub siab, thiab muaj peev xwm tiv tau zoo, thiab muaj qhov siv ntau yam.