Ndeupi musiyano uripo pakati pe75w90 giya mafuta uye 75w85?
Zviri mukati
Chii chinonzi viscosity yemafuta?
Mhando yemazuva ano yemafuta egiya dzimwe nguva inogona kuvhundutsa uye kuita kuti chero muridzi wemotokari avhiringike. Pamusoro pezvisinganzwisisike mamaki, pane zvakare kupatsanurwa kwemafuta mumhando dzinotevera:
- Mineral.
- Semi-synthetics.
- Synthetics.
Chimwe nechimwe chezvinwiwa izvi chinoratidzwa nehunhu hwemunhu uye maficha. Zvisinei, muridzi wemotokari anofanira kuterera kwete kune zvinyorwa izvi, asi kune chirevo chikuru chekusarudza mafuta - viscosity.
Iyi ndiyo parameter inokubvumira kuti unzwisise kana zvichibvira kushandisa mvura yekushanda mune imwe tembiricha yemhando. Mune mamwe mazwi, iyo viscosity parameter inobvumidza iwe kuona kugona kwemvura kuchengetedza iyo yepakutanga fluidity mukuita kwekuzora zvikamu, nekuti munhu wese anoziva kuti mafuta ari mugiya bhokisi anokora kana tembiricha yekunze yadonha. Izvi zvinotungamirira kumafuta asina kunaka uye, maererano, matambudziko mukushanda kwebhokisi regiya.
SAE Index
Zvinoenderana neiyo SAE kupatsanura, mafuta egiya akakamurwa muzvikamu zvinotevera:
- Fluid yekushanda munguva yechando (iyo Chirungu tsamba W inodiwa mukumaka).
- Liquid yekushanda muzhizha (hapana index mukumaka).
- Mvura yose yemwaka. Mukumaka kwayo, nhamba dzese dziri mbiri dziripo kamwechete, dzinopatsanurwa netsamba W.
Mhando yekupedzisira yemafuta inogona kushandiswa nevatyairi mukati megore.
Izvo zvakakosha kuti uzive kuti izvo zvinodikanwa zvega rega remafuta egiya zvinopereterwa muchikamu chinonzi SAE J306. Iyo zvakare inoratidza iyo yakanyanya kubvumidzwa tembiricha yekushanda yemvura yegiya bhokisi, zvichienderana nekirasi.
| Viscosity giredhi | Minimum tembiricha kusvika kinetic viscosity |
| 70W | -55 |
| 75W | -40 |
| 80W | -26 |
| 85W | -12 |
General misiyano
Paunenge uchimaka mafuta, nhamba yekutanga inoratidza viscosity kirasi kana uchishandisa zvigadzirwa mune yakashata tembiricha renji. Kukosha kwenhamba yechipiri mushure metsamba W inotakura ruzivo nezve viscosity parameter yekushandisa mafuta mune yakanaka tembiricha renji. Iyo diki kukosha kwekutanga parameter uye yakakura yechipiri, zviri nani iyo mvura ichava. Izvi zvinotsanangurwa nenyaya yekuti nhamba yakaderera yekutanga inogona kuve nechokwadi chekufamba kwemahara kwemagiya pazasi-zero tembiricha, uye kukosha kukuru kwenhamba yechipiri kunovimbisa kuwedzera kwesimba refirimu riri kugadzirwa.
Mushure mekuongorora misiyano yakajairwa mukumakwa kwemafuta egiya, tinogona kuenda kune chaiyo mienzaniso.
Ndeupi musiyano uripo pakati pe75w90 uye 75w85?
Zvose zvinwiwa zvichave nemutengo wakafanana wetembiricha yechando. Nekudaro, kune 75W85 oiri, kukosha kwebasa munzvimbo yakanaka kuchasvika kusvika 35 madhigirii, uye kune yemvura yakanyorwa 75W90, yakanyanya kubvumidzwa tembiricha yekushanda iri mukati me45 madhigirii.
Ndeupi musiyano uripo pakati pe75w90 uye 75w80?
Mamiriro acho akafanana neaya ekufambisa mvura. Misiyano iri pachikumbaridzo chepamusoro chekushanda kwemvura pane tembiricha yakanaka kunze kwehwindo.
Ndeupi musiyano uripo pakati pe75w90 uye 80w90?
Mune iyi vhezheni yekuenzanisa maviri egiya maoiri, haisisiri yakanaka tembiricha renji inouya kumberi, asi yakaipa. Saka, mvura yakanyorwa 75W90 inogona kushandiswa kunyange pa -40 madhigirii. Uye iyo inobvumirwa muganhu wekushanda kwe80W90 kutapurirana mafuta ndeye -26 madhigirii.
Nekusarudzwa kwakaringana kwemvura yegiya bhokisi, unogona kurerutsa manejimendi emotokari nekuda kwekushanda kwakanyarara kweiyo nzira yekufambisa. Kubva kumutyairi munyaya iyi, zvishoma zvekuedza zvichange zvichidikanwa kuchinja magiya.
