Sideed u Doorataa Saliida saxda ah ee Bamka Haydarooliga?
Isticmaalka saliida hadhka ee khaldan waxay dilaa aamusan u tahay qalabkaaga. Waxay keentaa kulayl xad dhaaf ah, xidhashada degdega ah, iyo waxqabadka gaabis ah, si aamusnaan ah u baabi'inta bamkaaga gudaha oo u horseedaya guuldarrooyin lama filaan ah.
Dooro saliidda adiga oo ku salaynaya heerka viscosity ISO (VG), sida caadiga ah VG 32 ama VG 46 inta badan matoorada la qaadi karo. Hubi inay ka kooban tahay dharka-ka-hortagga (AW) Waxyaalaha lagu daro oo tixgeli heerkulka hawlgalka - isticmaal viscosity hoose qabow iyo ka sarreeya kulaylka.
Waxaan mar booqday goob dhisme oo dhexda uga jirta jiilaalka naxariista daran ee Minnesota. Shaqaaluhu waxa ay la halgamayeen matoor biyo-biyood ah oo aad u caajis badan oo si dhib yar ugu shaqayn kara qalabkooda. Way niyad jabeen, iyagoo u malaynaya in bamka uu fashilmay. Waxaan hal milicsaday saliidda ay isticmaalayaan—waxay u dhumuc weyn tahay sida mooska ee heerkulka eber ka hooseeya. Waxay ahayd saliid tayo sare leh, laakiin gebi ahaanba khalad shuruudaha. Waxaan ku beddelanay saliid viscosity hoose ah (VG ah 22) Waxaan ku talinaynaa cimilada qabow. Bamkii isla markiiba wuu noolaaday, si habsami leh oo awood leh u socda. Waayo-aragnimadaasi waxay ahayd cashar xooggan: even the best pump in the world can't perform if it's fighting to move oil that has turned to sludge.
Waa maxay sababta Viscosity Saliidku aad muhiim ugu yahay?
Waad ogtahay inaad u baahan tahay saliid biyo-biyood ah, laakiin tirooyinka kala duwan ayaa jahawareersan. Doorashada mid khaldan waxay ka dhigi kartaa bamkaaga mid aad u gaabis ah ama aan la ilaalin, and you're not sure which is worse.
Viscosity is the oil's thickness and its resistance to flow. If it's too thick, bamka ayaa dhibtoonaya oo kululaada. If it's too thin, waxay ku guul dareysataa inay si fiican u saliidin, sababa xidhid degdeg ah.
The "Goldilocks" Mabda'a Saliidda
Viscosity waa hantida kaliya ee ugu muhiimsan ee saliidda biyaha. Injineer farsamo ahaan, Macaamiishayda sidan ayaan ugu sharaxay: you need an oil that's "just right." Loogu talagalay maamulaha dayactirka sida Michael, tani waxay la macno tahay in la doorto saliid dhuuban oo ku filan in ay si fudud ugu shubto godka matoorka (ka hortagga cavitation) laakiin dhumuc ku filan si loo abuuro xoog leh, filimka ilaalinta u dhexeeya qaybaha biraha dhaqaaqin. Filimkani waa waxa ka hortagaya xidhashada iyo jeexjeexa. Inta badan soo saarayaasha, oo ay ku jiraan LONGLOD, sheeg Shahaadada Viscosity ISO (VG) bambooyinkooda. Wixii ujeedo guud ah oo cadaadiska sare leh, tani inta badan waa VG 32 ama VG 46. Ka fakar tirooyinkan inay yihiin cabbir la qiyaaso oo dhumucdiisuna tahay heerkul gaar ah (40°C). Sticking to the manufacturer's recommended VG is the safest way to ensure your pump has the right balance of flowability and protection for its designed operating conditions.
Fasalada Viscosity-ga caadiga ah ee matoorada Cadaadis-sare:
| Heerka ISO VG | Sharaxaada Guud | Kiis Isticmaalka Ugu Wanaagsan |
|---|---|---|
| VG 22 | khafiif ah | Hawlgallada cimilada qabow ama nidaamyada u baahan socodka aad u degdega ah. |
| VG 32 | Dhex-dhexaad | Talada ugu badan ee isticmaalka agagaarka cimilada dhexdhexaadka ah. |
| VG 46 | Dhexdhexaad-Qaran | U roon jawi kuleyl sare leh ama qalab duug ah oo leh dhar badan. |
| VG 68 | Dhumucsan | Sida caadiga ah loo isticmaalo in weyn, nidaamyada taagan, ma aha bambooyin la qaadi karo. |
Sidee Heerkulku u saameeyaa Doorashadaada Saliida?
Bamkaagu wuxuu u shaqeeyaa si weyn subaxdii laakiin wuu daciifaa oo wuu daciifaa kulaylka galabtii. Iswaafaq la'aantan niyad-jabka ah waxay hoos u dhigtaa shaqada waxayna kaa dhigeysaa inaad su'aal geliso kalsoonida qalabkaaga.
Kulaylku wuxuu ka dhigaa mid khafiif ah saliidda, yaraynta viscosity iyo sifooyinka ilaalinta. Qabawgu wuxuu ka dhigaa mid dhumuc weyn leh, kordhinta viscosity iyo gaajo bamka. Dooro saliid ku salaysan adiga shaqayn heerkulka, ma aha oo kaliya cimilada.
Viscosity maaha tiro go'an
A critical mistake I see people make is forgetting that an oil's viscosity changes dramatically with temperature. Nambarka ISO VG waa sawir sawir ah oo ku yaal 40 ° C. Marka bamku socdo, kuleyl bay dhalisaa. Marka saliiddu sii kululaato, way sii dhuuban tahay. Haddii ay aad u dhuubanto, filimka difaaca ee u dhexeeya qaybo ayaa jebin kara, taasoo horseedaysa in birta-ku-taabasho iyo xidhid degdeg ah. Tani waa sababta cimilada kulul ama codsiyada wareegga sare, saliid yar oo dhumuc weyn sida VG 46 waxaa laga yaabaa inay ka door fiican tahay VG 32. Taas lidkeeda waa run qabowga. VG 32 saliidda waxay noqon kartaa mid aad u dhumuc weyn si ay si sax ah u socoto, taasoo horseedaysa gaajada dhabta ah iyo arrimaha cakiran ee aan ku arkay goobtaas dhismaha jiilaalka. Xaaladahan, saliid viscosity hoose waa lagama maarmaan. Qalabka loo isticmaalo meelaha heerkulku kala duwan yahay, Saliid Haydarooli ah oo heerar badan leh oo leh index Viscosity sare (VI) waa xal weyn, maadaama ay ilaalinayso viscosity-ka xasilloon ee heerkul ballaadhan oo kala duwan.
Nooca Saliida ah ee ay tahay inaad dhab ahaantii isticmaasho?
Ku lugaynta dukaanka, you're faced with a wall of different hydraulic oils. Dhammaantood isku mid bay u eg yihiin. Doorashada mid khaldan waxay la macno noqon kartaa dammaanad baabi'inta ama dhaawacayso bamka qaaliga ah.
Isticmaal saliid biyo-marineed oo tayo sare leh oo leh "AW" (xirashada lidka ku ah) xirmo lagu daro, ku habboon ISO VG oo ay ku taliyeen soo saaraha bamka. Inta badan qalabyada LONGLOD, kani waa AW 32 ama AW 46.
Ka dhig mid fudud oo tayo sare leh
Iyadoo ay jiraan dareerayaal badan oo kakan oo isku dhafan oo suuqa yaala, inta badan codsiyada warshadaha, you don't need to overthink it. Halbeeg, tayo sare leh, Saliida hydraulic-ku-salaysan ee macdanta ayaa ah shaqada warshadaha. Waxa ugu muhiimsan in la raadiyo waa "AW" magacaabid. Tani waxay ka dhigan tahay in saliiddu ay ka kooban tahay baakad wax lagu daro oo loogu talagalay in laga ilaaliyo bamka in uu xidhmo cadaadiska aadka u daran ee laga helo nidaamyadayaga. Waxyaabahan lagu daro, sida zinc, samee lakab allabari oo dusha birta ah. When you stick to a reputable brand and the manufacturer's recommended viscosity grade (sida AW 32 ama AW 46), waxaad ku kalsoonaan kartaa inaad siinayso ilaalinta saxda ah ee bamkaaga. Iska ilaali rabitaanka isticmaalka saliidda baabuurta, dareeraha gudbinta, ama saliido kale oo aan biyo ahayn. They don't have the right properties and will cause damage.
Tilmaamaha Talo-bixinta Degdegga ah:
- Isticmaalka Guud (50°F ilaa 95°F / 10°C ilaa 35°C): ISO VG 32 Dharka ka-hortagga (AW 32) Saliidda Haydarooliga.
- Deegaanka Kulul (>95°F / 35°C): ISO VG 46 Dharka ka-hortagga (AW 46) Saliidda Haydarooliga.
- Deegaanka Qabow (<50°F / 10°C): ISO VG 22 Dharka ka-hortagga (AW 22) Saliidda Haydarooliga.
Had iyo jeer hubi buug-gacmeedkaaga gaarka ah, laakiin hagahan ayaa ah meel lagu kalsoonaan karo oo laga bilaabo inta badan codsiyada cadaadiska sare leh.
Gabagabo
Doorashada saxda ah ee saliidda biyaha waa mid fudud: match the manufacturer's recommended viscosity grade (sida VG 32/46), Hubi inay leedahay waxyaabo lagu daro dharka lidka ku ah, lana hagaaji heerkulka aad u daran si loo hubiyo isku halaynta bamka muddada dheer.