Ua ntej, cia saib cov viscosity ntawm hydraulic kua.
Viscosity yog ib qho tseem ceeb ntawm cov kua dej hydraulic. Viscosity yog hais txog tus yam ntxwv uas qhov kev sib txhuam sab hauv ntawm cov kua ua rau cuam tshuam cov txheeb ze txav ntawm cov kua txheej thaum cov kua ntws. Viscosity yog ib qho kev ntsuas ntawm qhov loj ntawm cov khoom no. Viscosity muab faib ua peb hom, xws li dynamic viscosity, kinematic viscosity thiab txheeb ze viscosity.
Dynamic viscosity yog ib qho kev txhais nrog lub ntsiab lus meej, tab sis nws tsis tshua muaj siv hauv kev ua haujlwm. Dynamic viscosity sawv cev rau kev sib raug zoo ntawm kev sib txhuam sab hauv ntawm cov kua thiab qhov nrawm gradient, uas yog ib qho teeb meem nyuaj rau kev ntsuas.
Kinematic viscosity yog qhov piv ntawm dynamic viscosity rau ntom, uas yog siv los qhia cov viscosity ntawm hydraulic roj, uas yog yooj yim to taub. Lub hydraulic roj daim ntawv lo peb tau hais yog raws li kinematic viscosity, uas muaj ib tug muaj zog tswv yim tseem ceeb.
Tus txheeb ze viscosity, hu ua qhov kev ntsuas viscosity ntawm cov roj hydraulic hauv lub twj tso kua mis hydraulic, yog qhov yooj yim los ntsuas thiab ntsuas nrog Enshi viscometer.
Tom qab ntawd, thaum peb xaiv cov roj hydraulic ntawm cov viscosities sib txawv, peb yuav tsum xaiv raws li kinematic viscosity thiab txheeb ze viscosity. Nyob rau hauv qhov tseeb, hydraulic twj tso kua mis muaj ib tug tshwj xeeb hydraulic roj viscosity, haum rau siv nyob rau hauv lub Hoobkas. Qhov viscosity no yog hu ua kinematic viscosity. Tom qab ntawd thaum kawg, seb nws puas haum rau cov twj hydraulic yog nyob ntawm nws cov txheeb ze viscosity.
Qhov no yog vim hais tias tus txheeb ze viscosity yog qhov tseeb viscosity nyob rau hauv hydraulic twj tso kua mis, uas yog cuam tshuam los ntawm ntau yam thiab deviates los ntawm kinematic viscosity. Yog li ntawd, peb yuav tsum to taub ntau yam uas cuam tshuam qhov kev hloov ntawm cov txheeb ze viscosity. Txhawm rau xaiv cov roj hydraulic tsim nyog. Lub ntsiab tseem ceeb uas cuam tshuam rau qhov hloov pauv viscosity yog qhov kub thiab txias, zoo, vim tias qhov loj ntawm lub siab tswj tau yooj yim dua, tsuav nws tsis muaj teeb meem ntau dhau, tshwj tsis yog tias huab cua siab nyob rau hauv qhov chaw siv txawv ntawm qhov hauv thaj chaw zoo. Tsis tas li ntawd, lub siab kuj tswj tau zoo.
Qhov kub thiab txias yog txawv. Qhov kub siab dua, qhov viscosity qis dua, thiab ntau yam uas cuam tshuam rau qhov kub thiab txias. Muaj ntau qhov sib txawv, lub caij sib txawv, thiab qhov kub ntawm qhov chaw ua haujlwm yuav txawv heev. Lub twj tso kua mis hydraulic muaj cov sijhawm ua haujlwm sib txawv, kev txav ceev ntawm lub tog raj kheej hydraulic yog qhov sib txawv, thiab qhov tseeb ntawm cov haujlwm sib txawv kuj tseem yuav tsum muaj qhov kub thiab txias sib txawv, yog li nws yog qhov zoo tshaj rau nruab ib lub ntsuas kub thiab ntsuas qhov ntsuas kub ntau zaus kom ntseeg tau qhov tseeb ntawm txoj haujlwm. Feem ntau hais lus, yog tias tsis muaj qhov tshwj xeeb yuav tsum tau ua, qhov kub ntawm cov roj hydraulic yog nyob nruab nrab ntawm 15 thiab 65 degrees Celsius, uas tuaj yeem ua haujlwm zoo.
Yog li ntawd, yog tias peb cov kev ua haujlwm tshwj xeeb heev, cov roj hydraulic yuav tsum tsis txhob raug xaiv raws li daim ntawv lo ntawm lub twj tso kua mis hydraulic, tab sis tus txheeb ze viscosity thiab kinematic viscosity yuav tsum tau ua ke raws li cov txheej txheem xaiv.
