Kodi pali kusiyana kotani pakati pa 75w90 gear mafuta ndi 75w85?
Zamkatimu
Kodi kukhuthala kwamafuta ndi chiyani?
Mitundu yamakono yamafuta amagetsi nthawi zina imatha kugwedeza ndikupangitsa mwini galimoto aliyense kusokonezeka. Kuphatikiza pa zilembo zosamvetsetseka, palinso gulu lamafuta m'mitundu iyi:
- Mchere.
- Semi-synthetics.
- Synthetics.
Chilichonse chamadzimadzichi chimadziwika ndi katundu ndi mawonekedwe ake. Komabe, mwiniwake wagalimoto sayenera kulabadira zolemba izi, koma pachosankha chachikulu chosankha mafuta - kukhuthala.
Ndi chizindikiro ichi chomwe chimakulolani kuti mumvetsetse ngati madziwo angagwiritsidwe ntchito pa kutentha kwina. M'mawu ena, mamasukidwe akayendedwe chizindikiro limakupatsani kudziwa mphamvu ya madzimadzi kukhalabe fluidity ake oyambirira mu ndondomeko mafuta mbali, chifukwa aliyense amadziwa kuti mafuta mu gearbox thickens pamene kutentha kunja akutsikira. Izi zimatsogolera ku ntchito yolakwika ya lubricant ndipo, motero, zovuta pakugwira ntchito kwa gearbox.
Mtengo wa magawo SAE
Malinga ndi gulu la SAE, mafuta a gear amagawidwa m'magulu awa:
- Madzi ogwirira ntchito m'nyengo yozizira (chilembo cha Chingerezi W chimafunika polembapo).
- Zamadzimadzi zogwirira ntchito m'chilimwe (palibe cholembera polembapo).
- Nthawi zonse madzi. Pakuyika kwake, manambala onsewa amapezeka nthawi imodzi, omwe amasiyanitsidwa ndi chilembo W.
Mafuta amtundu womaliza amatha kugwiritsidwa ntchito ndi oyendetsa galimoto chaka chonse.
Ndizofunikira kudziwa kuti zofunikira pagulu lililonse lamafuta amalembedwa m'gulu lotchedwa SAE J306. Ikuwonetsanso kutentha kwakukulu kovomerezeka kwamadzimadzi a gearbox, kutengera kalasi.
| Gawo lazopanda malire | Kutentha kochepa kwambiri kuti mufike ku viscosity ya kinetic |
| 70W | -55 |
| 75W | -40 |
| 80W | -26 |
| 85W | -12 |
Kusiyana kwakukulu
Mukayika mafuta, nambala yoyamba ikuwonetsa kalasi ya mamasukidwe akayendedwe mukamagwiritsa ntchito zinthu zomwe zili ndi kutentha koyipa. Mtengo wa nambala yachiwiri pambuyo pa chilembo W imanyamula zambiri za mawonekedwe a viscosity pakugwiritsa ntchito mafuta pamtundu wabwino wa kutentha. Zing'onozing'ono mtengo wa chizindikiro choyamba ndi chachikulu chachiwiri, ndi bwino kuti madzi azikhala bwino. Izi zikufotokozedwa ndi mfundo yakuti nambala yoyamba yotsika imatha kuonetsetsa kuyenda kwaulere kwa magiya pa kutentha kwapansi pa zero, ndipo mtengo waukulu wa nambala yachiwiri umatsimikizira kuwonjezereka kwa filimu yomwe ikupangidwa.
Titasanthula kusiyana kwakukulu pakuyika chizindikiro chamafuta amagetsi, titha kupita ku zitsanzo zenizeni.
Kodi pali kusiyana kotani pakati pa 75w90 ndi 75w85?
Madzi onse awiri adzakhala ndi kutentha kwachisanu komweko. Komabe, pa mafuta 75W85, mtengo wa ntchito mu osiyanasiyana zabwino adzafika madigiri 35, ndi madzimadzi chizindikiro 75W90, pazipita kololeka ntchito kutentha mkati madigiri 45.
Kodi pali kusiyana kotani pakati pa 75w90 ndi 75w80?
Zomwe zikuchitika ndi zofanana ndi zamadzimadzi opatsirana. Kusiyanasiyana kuli pachimake chapamwamba cha ntchito yamadzimadzi pa kutentha kwabwino kunja kwa zenera.
Kodi pali kusiyana kotani pakati pa 75w90 ndi 80w90?
Mu mtundu uwu woyerekeza mafuta awiri amagetsi, sikulinso kutentha kwabwino komwe kumabwera patsogolo, koma koyipa. Choncho, madzi otchedwa 75W90 angagwiritsidwe ntchito ngakhale madigiri -40. Ndipo malire chovomerezeka ntchito 80W90 kufala mafuta ndi -26 madigiri.
Ndi kusankha koyenera kwamadzimadzi a gearbox, mutha kuwongolera kasamalidwe kagalimoto mosavuta chifukwa chogwira ntchito mwabata kwambiri pamakina otumizira. Kuchokera kwa dalaivala pankhaniyi, kuyesayesa kochepa kudzafunika kusintha magiya.
