Puas tuaj yeem kuaj cov viscosity ntawm e-kua

Lub viscosity ntawm cov roj luam yeeb hluav taws xob tuaj yeem kuaj pom tau siv cov kev siv feem ntau xws li cov viscometers teb thiab capillary viscometers. Piv txwv li, los ntawm kev siv lub viscometer rotational, qhov kev tiv thaiv ntawm e-kua rau rotating khoom yuav raug ntsuas ntawm ib qho kev ceev, yog li xam nws tus nqi viscosity. Kev ntsuas viscosity feem ntau yuav tsum tau kho cov qauv e-kua mus rau qhov ntsuas kub (xws li 25 degree C) thiab tswj nws tas li kom tau txais cov txiaj ntsig raug.
Txheej txheem cej luam ntawm kev ntsuas viscosity rau hluav taws xob luam yeeb roj
Lub viscosity ntawm e-kua yog ncaj qha ntsig txog kev ua tau zoo thiab cov neeg siv kev paub ntawm e-luam yeeb. Cov viscosity ntau dhau tuaj yeem ua rau kev ua haujlwm tsis zoo ntawm lub tshuab hluav taws xob e-luam yeeb, ua kom nqus tau zoo; Yog tias qhov viscosity tsawg dhau, nws tuaj yeem ua rau cov pa tawm thiab txo cov kev pab cuam lub neej ntawm cov luam yeeb hluav taws xob. Ib txoj kev tshawb fawb qhia tias e-kua nrog viscosity ntawm 1.20 Pa·s tuaj yeem muab cov nyhuv atomization zoo tshaj plaws, thaum e-kua nrog cov viscosity tsawg li 0.65 Pa·s yog qhov ua rau to, cuam tshuam rau cov neeg siv kev paub. .
Qhov tseem ceeb ntawm viscosity hauv hluav taws xob luam yeeb roj
Viscosity yog ib qho tseem ceeb ntawm lub cev tsis zoo rau kev ntsuas qhov fluidity ntawm cov roj luam yeeb hluav taws xob, uas cuam tshuam ncaj qha rau cov nyhuv atomization thiab roj noj ntawm cov luam yeeb hluav taws xob. Cov roj luam yeeb hauv hluav taws xob uas muaj cov viscosity siab tuaj yeem txo qis, tab sis yuav xav tau lub zog siab dua (xws li tshaj 15W) kom muaj cua sov zoo, uas yuav ua rau tus nqi ntawm kev siv cov luam yeeb hluav taws xob. Txawm hais tias cov roj siv hluav taws xob uas muaj viscosity tsawg yog ib qho yooj yim rau cua sov thiab atomize, nws yog ib qho yooj yim to to thiab tuaj yeem siv tau zoo ntawm lub zog qis dua 10W, yog li txo cov hluav taws xob siv hluav taws xob.
Lub hauv paus ntsiab lus ntawm kev ntsuas viscosity
Kev ntsuas viscosity feem ntau yog txiav txim siab raws li tus cwj pwm ntws ntawm cov kua hauv qee yam mob. Cov txheej txheem siv suav nrog kev sib hloov viscometer thiab oscillating viscometer, qhov twg cov viscometer rotational txiav txim siab viscosity los ntawm kev ntsuas qhov tsis kam ntawm cov khoom tig hauv cov kua. Piv txwv li, qhov viscosity ntau yam ntawm cov roj luam yeeb hluav taws xob ntsuas siv lub viscometer rotary feem ntau yog nyob nruab nrab ntawm 0.65 Pa·s thiab 1.50 Pa·s, uas tuaj yeem muab cov ntaub ntawv raug txhawb rau kev tsim khoom thiab kev tswj kom zoo. Lub oscillating viscometer txiav txim siab viscosity los ntawm kev ntsuas qhov damping nyhuv ntawm cov kua ntawm lub oscillation, thiab yog haum rau hluav taws xob luam yeeb roj nrhiav kom tau cov viscosity nruj.
Kev ntsuam xyuas viscosity tsis yog tsuas yog cuam tshuam nrog kev tsim cov roj luam yeeb hluav taws xob zoo, tab sis kuj tseem yog qhov txuas tseem ceeb hauv kev tswj xyuas cov roj luam yeeb hluav taws xob zoo. Los ntawm kev ntsuas viscosity kom raug, cov tuam ntxhab tuaj yeem ua kom zoo dua cov qauv ntawm cov roj luam yeeb hluav taws xob, ua kom cov neeg siv khoom siv tau zoo tshaj plaws thiab cov cuab yeej siv lub neej ntawm cov luam yeeb hluav taws xob, thaum tswj cov nqi tsim khoom thiab tswj kev sib tw kom zoo dua hauv kev lag luam sib tw hnyav.
Txoj kev kuaj viscosity
Kev ntsuas viscosity yog tus yuam sij rau kev nkag siab tias cov kua dej ntws li cas hauv lub zog. Rau e-kua, qhov ntsuas viscosity raug ua kom muaj kev sib xws ntawm cov khoom zoo thiab cov neeg siv kev paub. Tshooj lus no yuav qhia ob lub ntsiab viscosity xeem cov tswv yim thiab cov khoom siv viscosity nrov.
Dynamic viscosity detection technology
Dynamic viscosity, tseem hu ua absolute viscosity, yog tus yam ntxwv ntawm cov kua dej tsis kam rau shear lossis ntws ntawm qhov kub thiab txias. Dynamic viscosity detection technology feem ntau suav nrog kev tso kua dej ntawm ob qhov chaw sib luag, ib qho txav los tsim cov shear flow, thiab tom qab ntawd ntsuas lub zog uas yuav tsum tau ua kom tswj tau qhov kev txav no. Lub viscometer rotational yog cov cuab yeej siv ntau tshaj plaws hauv hom kev tshawb pom no, uas suav cov viscosity los ntawm kev ntsuas qhov kev tiv thaiv uas tau ntsib los ntawm lub rotating disk thaum tig hauv cov kua. Kev ntsuas dynamic viscosity ntawm cov qauv hluav taws xob luam yeeb roj ntawm chav tsev kub (25 ° C) yog kwv yees li ntawm 0.65 thiab 1.20 Pa·s, uas pab cov tuam txhab kho cov mis kom ua tiav cov txiaj ntsig zoo atomization thiab tsis txhob xau.
Kinematic viscosity detection technology
Kinematic viscosity yog qhov piv ntawm dynamic viscosity ntawm cov kua rau nws qhov ntom, uas qhia txog lub peev xwm ntws ntawm cov kua hauv qab kev ua ntawm lub ntiajteb txawj nqus. Lub zog viscosity detection technology siv lub sij hawm ntws ntawm cov kua los ntawm lub capillary los yog lwm yam kev txwv channel nyob rau hauv lub zog ntawm lub ntiajteb txawj nqus los txiav txim nws viscosity. Lub capillary viscometer yog ib qho cuab yeej siv rau kev ntsuas kinematic viscosity, uas suav cov viscosity los ntawm kev ntsuas lub sij hawm nws yuav siv sij hawm rau ib lub ntim ntawm cov kua los ntawm lub capillary. Kinematic viscosity yog qhov tseem ceeb sib npaug rau cov roj luam yeeb hluav taws xob vim nws cuam tshuam rau cov txheej txheem atomization thiab cov roj siv hluav taws xob ntawm cov khoom siv luam yeeb. Qhov siab viscosity ntawm cov roj luam yeeb hluav taws xob tuaj yeem ua rau cov roj tsis txaus, thaum lub viscosity tsawg tuaj yeem ua rau cov pa tawm.
Nrov viscosity xeem ntsuas
Muaj ntau yam khoom siv ntsuas viscosity hauv khw, tab sis cov viscometers teb thiab capillary viscometers tshwj xeeb tshaj yog nyiam rau lawv qhov raug thiab yooj yim ntawm kev siv. Lub viscometer rotary yog tsim rau ntau yam viscosity, los ntawm cov kua dej tsawg heev xws li dej mus rau cov kua viscosity siab xws li xim lossis e-kua. Brookfield rotational viscometer yog ib qho ntawm cov khoom siv dav dav hauv kev lag luam, tus nqi ntawm $ 1000 thiab $ 3000, nyob ntawm tus qauv thiab kev ua haujlwm. Txawm hais tias capillary viscometers yog qhov yooj yim siv thiab siv tau zoo, lawv qhov tseeb thiab rov ua dua yuav tsis zoo li cov viscometers teb raws li qhov yuav tsum tau ua. Rau feem ntau e-kua ntau lawm, capillary viscometers muab ib qho kev lag luam thiab kev ntsuas viscosity zoo.
Cov txheej txheem ua haujlwm ntawm viscosity kuaj
Kev ntsuam xyuas viscosity kom raug yog qhov tseem ceeb rau kev ua kom cov roj luam yeeb hluav taws xob zoo. Cov txheej txheem kev khiav hauj lwm kom raug tsis tsuas yog cuam tshuam rau qhov tseeb ntawm cov txiaj ntsig kev xeem, tab sis kuj muaj feem xyuam rau kev ntsuas kev ua tau zoo thiab kev tswj tus nqi.
Kev npaj ua ntej thiab kev kho mob ua ntej
Ua ntej pib qhov kev ntsuam xyuas viscosity, nws yog ib qho tsim nyog los xyuas kom meej tias cov qauv yog nyob rau hauv lub xeev tsim nyog rau kev ntsuam xyuas. Kev tswj cov qauv ntsuas kub yog qhov tseem ceeb nyob rau theem no. Vim muaj kev sib raug zoo ntawm viscosity thiab kub, cov qauv luam yeeb hluav taws xob yuav tsum tau hloov kho rau qhov kub thiab txias (feem ntau yog chav tsev kub ntawm 25 ° C) thiab khaws cia tas li. Cov kauj ruam no yog qhov tseem ceeb rau kev zam kom tsis txhob muaj kev tsis ncaj ncees hauv cov txiaj ntsig kev xeem. Rau qhov ntsuas kub siab dua lossis qis dua, kev tswj xyuas meej yuav tsum tau ua tiav siv lub da dej kub tas li lossis ntsuas kub. Muab cov e-kua qauv tso rau hauv ib puag ncig ntawm 25 ° C rau tsawg kawg 30 feeb kom ntseeg tau tias cov qauv ntsuas kub zoo ib yam thiab zoo ib yam.
Cov kauj ruam ntsuas viscosity
Cov kauj ruam tseem ceeb ntawm kev ntsuas viscosity suav nrog xaiv cov cuab yeej ntsuas tsim nyog, teeb tsa cov ntsuas ntsuas, thiab ua tiav cov haujlwm ntsuas. Kev siv cov viscometer rotational yog ib qho kev xaiv nyob rau theem no. Tus neeg teb xov tooj yuav tsum xyuas kom meej tias qhov ntsuas ntsuas ntsuas yog qhov tseeb thiab xaiv lub rotor thiab qhov nrawm uas phim cov viscosity ntau ntawm e-kua. Piv txwv li, siv Brookfield rotational viscometer thiab kev sim nrog # 1 rotor ntawm qhov ceev ntawm 12rpm tuaj yeem muab qhov ntsuas tau tseeb rau nruab nrab viscosity e-kua. Nws yog ib qho tseem ceeb uas cov neeg ua haujlwm ua raws li cov txheej txheem ua haujlwm nruj kom ntseeg tau tias muaj kev sib luag thiab rov ua dua tshiab hauv txhua qhov kev ntsuas.
Kev ntsuam xyuas thiab kev txhais lus
Tom qab kev ntsuas viscosity tiav, cov txiaj ntsig yuav tsum tau txheeb xyuas thiab txhais. Kev txheeb xyuas qhov sib xws ntawm cov txiaj ntsig yog qhov tseem ceeb ntawm theem no. Rau cov ntaub ntawv tau los ntawm ntau qhov kev ntsuas sib law liag, nws qhov sib xws thiab rov ua dua yuav tsum raug ntsuas. Yog tias qhov ntsuas tau hloov pauv nyob rau hauv ib qho me me (xws li ± {{0}}}.05 Pa·s), nws tuaj yeem txiav txim siab tias qhov kev xeem tau muaj kev ntseeg siab. Rau cov txiaj ntsig uas tshaj qhov xav tau ntau, nws yuav tsum tau rov ntsuam xyuas cov yam ntxwv xws li kev npaj ua qauv, kev sim ntsuas, thiab ntsuas ntsuas ntsuas. Kev txhais cov ntaub ntawv viscosity kom raug yog qhov tseem ceeb rau kev tswj xyuas kom zoo thiab hloov cov qauv ntawm cov roj luam yeeb hauv hluav taws xob. Yog tias qhov ntsuas tsis tu ncua ntawm qhov dynamic viscosity ntawm cov qauv e-kua yog qis dua 0.65 Pa·s, nws yuav tsim nyog los ua kom cov nplaum sib piv los txhim kho cov nyhuv atomization thiab tiv thaiv kom tsis txhob tawg.