TheTusmada Viscosity (VI)waa tiro muujinaysa inta uu dareeruhu isbedbeddelo heerkulka. Waa cabbir aan cabbir lahayn, oo qaraabo ah—macnaheedu waa ma laha halbeegyo waxaana loo isticmaalaa in lagu barbardhigo dareerayaasha. Asare VImacnaheedu waa in dareeraha uu sii ahaado mid deggan oo heerkulkiisu aad u sarreeyo, halkaVI hoosemacnaheedu waa in viscosity-gu uu aad isu beddelo, taasoo ka dhigaysa dareeraha mid aan la isku halleyn karin heerkulka daran.
Maxay VI muhiim u tahay?
Codsiyada dhabta ah, dareerayaasha sida saliidaha matoorka amadareerayaasha haydarooligawaxay u baahan tahay inay si kalsooni leh u shaqeyso heerkul kala duwan. Haddii uu dheellitirku aad isu beddelo:
- Marka qabow yahayDareere qaro weyn ayaa ka dhigi kara bilaabista matoor ama mashiin mid adag, taasoo kordhinaysa xirashada qaybaha sababtoo ah dareeruhu si fiican uma socdo si uu saliideeyo.
- Marka ay kulul yihiinDareeraha khafiifka ah waxaa laga yaabaa inaysan bixin ilaalin ku filan, taasoo keenta in birta birta ku jirta ay taabato, ay duugowdo, ama xitaa qalabku uu xumaado.
Tusaale ahaan, matoorka gaariga:
- Subax qabow oo jiilaal ah, saliid yar oo VI ah ayaa laga yaabaa inay aad u qaro weyn tahay oo matoorku uu ku dhibtoonayo inuu rogrogo, taasoo keenta cadaadis iyo xirasho.
- Kulaylka xagaaga, isla saliidda VI-ga ee hooseysa ayaa laga yaabaa inay aad u khafiifto, iyadoo ku guuldarreysa inay qaybaha matoorka ka ilaaliso is jiidjiidka iyo kulaylka, taasoo yareyneysa hufnaanta iyo cimriga.
Dhanka kale, saliid sare oo VI ah, ayaa si fiican ugu qulqulaysa qabowga si loo hubiyo in si siman loo bilaabo oo ay ku sii jirto qaro weyn kulaylka si ay u ilaaliso qaybaha matoorka, taasoo hagaajinaysa waxqabadka iyo cimri dhererka.
Arrimaha Saameeya Tusmada Iftiiminta
VI ee dareeraha waxay ku xiran tahay laba arrimood oo waaweyn:
- Nooca Saliida Saldhigga ah:
- Saliidaha Macdanta(laga bilaabo saliidda cayriin): Kuwani waxay caadi ahaan leeyihiin VI hoose (tusaale ahaan, 80–120), taasoo la micno ah in dheskoodu uu aad isu beddelo heerkulka.
- Saliidaha Macmalka ah(sida polyalphaolefins ama esters): Kuwani badanaa waxay leeyihiin VI sare (tusaale ahaan, 120–200), iyagoo bixinaya xasillooni ka wanaagsan heerkulka oo dhan.
- Saliidaha Khudaarta ama Bayoolojiga ku salaysan: VI way kala duwan tahay laakiin badanaa waa dhexdhexaad, iyadoo ku xiran isha.
- Waxyaabaha lagu daroKiimikooyin gaar ah oo loogu yeerohagaajiya tusmada viscosity-ga(VII) waxaa lagu daraa saliidaha si loo kordhiyo VI-gooda. Waxyaabaha lagu daro waa polymers-ka oo fida marka la kululeeyo, taasoo ka caawisa saliiddu inay iska caabiso khafiifinta, oo marka la qaboojiyo ay isku ururto, taasoo ka hortagaysa inay aad u qaro weynaato.
Sababta VI ay Muhiim ugu tahay Xulashada Dareeraha
Doorashada dareere leh VI-ga saxda ah waa lama huraan marka heerkulku isbeddelo, sida:
- Matoorada baabuurtaSaliidaha VI-ga Sare (tusaale ahaan, 5W-30 oo macmal ah) waxay hubiyaan bilawga qabowga oo siman iyo ilaalin la isku halleyn karo heerkulka hawlgalka sare.
- Nidaamyada HaydarooligaQalabka dhismaha, dareerayaasha sare ee VI waxay ilaaliyaan bixinta korontada ee joogtada ah ee goobaha barafaysan ama kulul.
- Mashiinnada warshadahaSaliidaha High-VI waxay yareeyaan xirashada iyo luminta tamarta ee sanduuqyada ama kombaresarada ka shaqeeya heerarka heerkulka ballaaran.
Tusaale ahaan, cimilada qabow, qodaha haydarooliga oo isticmaalaya dareere VI hooseeya ayaa laga yaabaa inuu si gaabis ah uga jawaabo subaxdii, taasoo dib u dhigaysa shaqada iyo walxaha walaaca leh. Dareere VI sare leh ayaa nidaamka ka dhigaya mid jawaab celin iyo hufan leh.
Muujinta Tusmada Iftiiminta
Bal qiyaas garaaf isbarbardhigaya sida viscosity-gu isu beddelo heerkulka laba saliidood:
- Dhidibka XHeerkulka (tusaale ahaan, laga bilaabo -20°C ilaa 100°C).
- Dhidibka Y: Viscosity (sida uu u dhumuc weyn yahay ama u khafiifsan yahay dareeraha).
- Saliid yar oo VI ah: Xariiqu si qoto dheer ayuu u janjeeraa, isagoo muujinaya isbeddel weyn oo ku yimid daxalka - aad buu u qaro weyn yahay heerkul hoose iyo aad u khafiifsan heerkulka sare.
- Saliid sare oo VI ah: Khadku waa mid siman, taasoo muujinaysa in isku-dhafku uu sii ahaado mid isku mid ah heerkulka isku midka ah.
Farqigani waa sababta saliidaha sare ee VI loogu doorbido codsiyada adag - waxay bixiyaan waxqabad la saadaalin karo oo la isku halleyn karo.
Waxyaabaha Muhiimka ah ee Laga Qaadan Karo
- Tusmada Viscosity (VI)waxay cabbirtaa sida uu u deggan yahay dareeraha marka heerkulku isbeddelo.
- VI Sare= viscosity deggan, oo ka wanaagsan heerkulka ballaaran (tusaale ahaan, saliidaha macmal ah).
- VI hoose= viscosity-gu aad buu isu beddelaa, taasoo keeni karta dhibaatooyin xaaladaha qabow ama kulul.
- Saamaynta dhabta ah ee adduunkaDareeraha sare ee VI waxay horumariyaan waxqabadka iyo ilaalinta matoorada, nidaamyada haydarooliga, iyo mashiinnada iyagoo yareynaya xirashada iyo hubinta hawlgalka siman.
- ArrimahaNooca saliidda salka (macdanta iyo kuwa la macmalay) iyo waxyaabaha lagu daro sida hagaajinta tusmada viscosity waxay go'aamiyaan VI.
Marka la doorto dareere leh VI-ga saxda ah, injineerada iyo farsamoyaqaannada waxay hubin karaan in qalabku si hufan u shaqeeyo oo uu sii jiro waqti dheer, iyadoon loo eegin cimilada ama xaaladaha hawlgalka.
Waqtiga boostada: Sebtembar-18-2025
