Qhov kev xaiv ntawm cov phooj ywg ib puag ncig ntim:
Kev xaiv hom muab tub lim yuav tsum xav txog qhov ua haujlwm ntawm cov txheej txheem, thiab feem ntau xav txog cov hauv qab no:
(1) Muaj peev xwm hloov huab hwm coj ntau Feem ntau hais lus, qhov hloov huab hwm coj loj tuaj yeem tsim cov txheej txheem ntim dej kho dej siab dua qhov ntim ntau dua
(2) Lub flux yuav tsum loj. Nyob rau hauv qhov pom zoo ua kom cov huab hwm coj loj hloov pauv tau, ntim nrog cov dej siab tshaj qhov roj kis lossis roj theem kinetic zog yuav tsum tau xaiv
(3) Lub siab poob ntawm lub pob txheej yuav tsum yog tsawg
(4) Cov ntim khoom muaj lub zog tiv thaiv-tiv thaiv thiab los tiv thaiv lub luag haujlwm, yooj yim rhuav tshem thiab kho
Ruam xaiv
Cov ntawv sau ua tiav tau muab faib ua peb pawg: ceramic, hlau thiab yas.
(1) Ceramic muab tub lim Ceramic muab tub muaj qhov zoo corrosion thiab kub tsis kam. Tej hub muab tub lim yog pheej yig thiab muaj cov khoom zoo saum npoo av. Lawv tsis yooj yim thiab tsis taus. Nws yog dav siv hauv cov txheej txheem xws li kev nqus pa, kev ntxuav roj thiab kua ua kua.
(2) Cov tub lim hlau Hlau ua cov hlau tuaj yeem ua cov khoom siv ntau yam, thiab kev kho kom xeb yuav tsum raug txiav txim siab ua ntej thaum xaiv. Cov pa roj carbon txhuam cav yog qhov pheej yig thiab muaj qhov ua haujlwm saum npoo av. Cov khoom siv tsis-xeb los yog xeb yuav tsum siv ua ntej; stainless steel packing muaj muaj zog tiv taus corrosion. Feem ntau, lawv feem ntau tuaj yeem kho qhov tseeb los ntawm cov khoom siv uas tsis yog Cl–, tab sis lawv tus nqi yog siab dua thiab kev ua haujlwm saum npoo av tsis zoo. Qee qhov tshwj xeeb (xws li cov txheej txheem nqus dej mus raws li cov tshuaj tsuag dej tsawg heev), qhov saum npoo yuav tsum tau kho kom tau txais daim ntawv thov cov nyhuv; nws yog tsim los ntawm titanium, tshwj xeeb alloy hlau thiab lwm yam ntaub ntawv. Lub muab tub lim yog kim thiab feem ntau tsuas yog siv rau qee yam cov ntaub ntawv corrosive. Feem ntau hais lus, cov hlau ntim tau ua rau cov phab ntsa nyias nyias nrog cov flux loj loj, roj tsis kam, thiab siab cuam tshuam. Nws tuaj yeem siv hauv qhov kub thiab txias, kev tiv thaiv kev kub siab thiab qhov cuam tshuam zoo lub zog, thiab muaj ntau yam kev siv.
(3) Yas muab tub lim Cov khoom ntawm yas muab tub lim feem ntau suav nrog polypropylene (PP), polyethylene (PE) thiab polyvinyl chloride (PVC). Hauv Suav teb, polypropylene feem ntau yog siv. 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 cov peev txheej kub tuaj yeem siv ntev ntev li ntawm 100 ° C. Cov yas ntim khoom yog lub cev yuag, pheej yig, ruaj, cuam tshuam-tiv taus, tsis yooj yim, thiab tuaj yeem ua rau hauv cov qauv nyias-ntsa. Nws muaj cov flux loj loj thiab txo qis siab, thiab feem ntau yog siv hauv cov khoom siv xws li nqus, desorption, tshem tawm thiab hmoov av tshem tawm. Qhov tsis zoo ntawm cov muab tub lim yas yog qhov tsis zoo saum npoo av, tab sis nws tuaj yeem txhim kho los ntawm kev kho kom zoo dua saum npoo.