Video: Dab tsi yog qhov txawv ntawm cov khoom siv tshuaj thiab lub cev?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Lub cev muaj zog tuaj yeem soj ntsuam lossis ntsuas yam tsis hloov qhov muaj pes tsawg leeg. Lub cev muaj zog yog siv los soj ntsuam thiab piav txog qhov teeb meem. Cov khoom siv tshuaj tsuas yog pom thaum lub sijhawm a tshuaj cov tshuaj tiv thaiv thiab yog li hloov cov tshuaj tshuaj muaj pes tsawg leeg.
Khaws qhov no rau hauv kev txiav txim siab, dab tsi yog lub cev thiab tshuaj lom neeg lub zog?
Cov yam ntxwv ntawm cov teeb meem xws li xim, ntom, hardness, yog piv txwv ntawm lub cev muaj zog. Cov khoom uas piav qhia txog yuav ua li cas cov khoom hloov pauv mus rau hauv cov khoom sib txawv kiag li hu ua chemical properties. Flammability thiab corrosion / oxidation kuj yog piv txwv ntawm chemical zog.
Tsis tas li ntawd, piv txwv ntawm cov khoom siv tshuaj lom neeg yog dab tsi? Piv txwv ntawm cov khoom siv tshuaj muaj xws li flammability, toxicity, acidity, reactivity (ntau hom), thiab kub ntawm combustion. Hlau, piv txwv li, ua ke nrog oxygen nyob rau hauv lub xub ntiag ntawm dej los ua xeb; chromium tsis oxidize (Daim duab 2).
Ntawm no, qhov txawv ntawm lub cev thiab cov khoom siv tshuaj lom neeg yog dab tsi?
A khoom ntiag tug yog ib qho nam uas tuaj yeem soj ntsuam lossis ntsuas yam tsis tau hloov. A chemical khoom tej zaum tsuas yog pom los ntawm kev hloov cov tshuaj tus kheej los yog yam khoom.
Dab tsi yog qhov txawv ntawm lub cev thiab tshuaj lom neeg?
Cov qhov sib txawv ntawm ib lub cev tshuaj tiv thaiv thiab a tshuaj tshuaj tiv thaiv yog muaj pes tsawg leeg. Hauv ib tshuaj cov tshuaj tiv thaiv, muaj kev hloov pauv ntawm cov tshuaj hauv nqe lus nug; hauv a lub cev hloov muaj ib txawv nyob rau hauv tsos, tsis hnov tsw, los yog yooj yim tso saib ntawm ib tug qauv ntawm cov teeb meem yam tsis muaj kev hloov nyob rau hauv muaj pes tsawg leeg.
Pom zoo:
Dab tsi yog qhov txawv ntawm qhov sib txawv ntawm qhov sib txawv thiab qhov sib txawv ntawm qhov ntab?
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Dab tsi yog tshuaj lom neeg cov tshuaj tiv thaiv thiab cov tshuaj tiv thaiv lub cev?
Qhov sib txawv ntawm cov tshuaj tiv thaiv lub cev thiab cov tshuaj tiv thaiv tshuaj yog muaj pes tsawg leeg. Hauv cov tshuaj tiv thaiv tshuaj, muaj kev hloov pauv ntawm cov tshuaj hauv nqe lus nug; nyob rau hauv ib qho kev hloov ntawm lub cev muaj qhov sib txawv ntawm qhov tsos, tsis hnov tsw, los yog cov duab yooj yim ntawm cov qauv ntawm cov teeb meem yam tsis muaj kev hloov pauv hauv cov ntsiab lus