Video: Dab tsi yog qhov tseem ceeb ntawm viscosity index?
2024 Tus sau: Stanley Ellington | [email protected]. Kawg hloov kho: 2023-12-16 00:17
Lub viscosity index yog ib qho kev ntsuas ntawm kev hloov hauv viscosity nrog fluctuations nyob rau hauv kub . Hauv cov ntsiab lus yooj yim, qhov viscosity Performance index qhia koj li cas cov kua dej tuaj yeem tiv thaiv nws cov viscosity thaum hloov pauv hauv kub.
Tom qab ntawd, ib tug kuj yuav nug, yog vim li cas viscosity index tseem ceeb?
Nws tso cai rau kev sib piv zoo dua ntawm cov viscosity tus cwj pwm ntawm cov roj sib txawv raws li qhov kub thiab txias. Cov viscosity index yog tseem ceeb txhawm rau xyuas kom meej, piv txwv li, qhov zoo tshaj plaws ua tau lubrication rau cov tshuab, raws li qhov kub thiab txias tshwm sim thaum ua haujlwm.
Tsis tas li ntawd, viscosity yog dab tsi thiab vim li cas nws tseem ceeb? Yog li txoj cai viscosity muab koj lub peev xwm los lubricate. Hauv lubrication, viscosity yog feem ntau tseem ceeb yam ntxwv ntawm lubricating roj thiab, dab tsi yog feem ntau tsis nco qab, nws kuj yog heev tseem ceeb hauv roj. viscosity yog kev tiv thaiv kev txav mus los. Dej ntws ceev kom nws muaj tsawg viscosity , zib mu muaj siab viscosity.
Tsuas yog li ntawd, qhov viscosity index txhais li cas?
Cov viscosity index (VI) yog ib qho arbitrary, unitless ntsuas ntawm kev hloov ntawm viscosity nrog kub, feem ntau yog siv los characterize tus viscosity -kub tus cwj pwm ntawm lubricating roj. Qhov qis dua VI, qhov ntau viscosity cuam tshuam los ntawm kev hloov pauv ntawm qhov kub thiab txias.
Puas yog qhov siab viscosity Performance index Zoo?
Qhov loj dua viscosity index (VI), qhov me dua qhov hloov pauv hauv cov kua dej viscosity rau ib tug muab hloov nyob rau hauv kub, thiab vice versa. Cov zoo tshaj plaws cov roj uas muaj qhov siab tshaj VIs nyob ruaj khov thiab tsis sib txawv ntau hauv viscosity tshaj qhov kub ntau yam. Qhov ntawd, nyob rau hauv lem, txhais tau hais tias sib xws, siab kev ua tau zoo ntawm lub tshuab.
Pom zoo:
5 yam ntxwv tseem ceeb ntawm kev txiav txim siab tseem ceeb yog dab tsi?
Cov yam ntxwv ntawm Kev Txiav Txim Siab Txog Kev Txiav Txim Siab Nrog Scope ntawm Ib Lub Koom Haum txoj haujlwm. Sib piv cov dej num nrog ib puag ncig. Sib piv cov dej num nrog peev txheej peev txheej. Sib piv cov dej num nrog cov hauv paus peev txheej. Muaj feem cuam tshuam rau kev txiav txim siab ua haujlwm. Cuam tshuam qhov xwm txheej thiab qhov loj ntawm cov tswv yim
Dab tsi yog qhov siab viscosity index?
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