Kuthamanga kwa injini galimoto yowononga msewus ndivuto lalikulu lomwe lingayambitse kuwonongeka kwakukulu kwa makina ndikufunika kukonzanso kwakukulu. Kumvetsetsa zomwe zimayambitsa ndi njira zodzitetezera ndikofunikira kuti injiniyo ikhale ndi thanzi komanso magwiridwe antchito.
Kodi Engine Scuffing ndi chiyani?
Kusefukira kwa injini kumadziwika ndi kukwapula kowoneka bwino kwakutali ndi ma gouges mkati mwa mphete za pistoni.’ mayendedwe pakhoma la silinda. Mu milandu kwambiri, kuvala uku kumatha kukwera mpaka kuvala zomatira, kuyambitsa zovuta pakuyambitsa injini kapena kuyimitsa. Choyambitsa chachikulu cha scuffing ya injini ndikulephera kupanga filimu yokwanira yamafuta pakati pa khoma la silinda ndi mphete za pistoni., kumabweretsa kusapaka bwino mafuta komanso ngakhale kukangana kouma.
Zomwe Zimayambitsa Kusokonekera kwa Injini
1. Mafuta a Engine Otsika
Mafuta Osauka: Kugwiritsa ntchito mafuta a injini otsika kwambiri kapena osayenera ndiye chifukwa chofala kwambiri cha kuwonongeka kwa injini. Mafuta otsika amalephera kupereka mafuta okwanira, kumayambitsa kukhumudwa komanso kukhumudwa.
Kuwonongeka kwa Mafuta: Popita nthawi, mafuta a injini akhoza kuwonongeka, kutaya mamasukidwe ake akayendedwe ndi zoteteza katundu. Kusintha kwamafuta pafupipafupi ndi mafuta apamwamba kumatha kuletsa nkhaniyi.
2. Kukongoletsa Molakwika ndi Pamwamba Kumaliza
Pambuyo khazikitsa honing mutu anapereka ndi n'kupanga abrasive pa galimoto wrecker, ndikofunikira kuonetsetsa kuti makoma a silinda amalizidwa bwino:
Kupatuka kwa Cylindricity: Yang'anani kupotoka kwa cylindricity; ngati ipitilira 0.10 mm, zimasonyeza njira yosayenera yoweta.
Kusintha kwa Pressure: Kupanikizika komwe kumagwiritsidwa ntchito ndi zingwe zomangira kumakhudza kulimba kwa khoma la silinda.
Kupanikizika Kwambiri: Ngakhale kumawonjezera Machining Mwachangu, imabweretsanso roughness, kupanga mawonekedwe a crosshatch ndi mtundu wa bluish-grey. Kupanikizika kwambiri kungayambitse kusweka kwa mizere ya abrasive.
Kuthamanga Kwambiri: Kuchulukitsa zopatuka mu cylindricity ndi kuzungulira. Mutu wapamutu suyenera kugwa momasuka kapena kukhala ndi kukana kwakukulu pamene ukuyenda mmwamba ndi pansi pambuyo pa kusintha.
3. Msonkhano Wolakwika ndi Kusamalira
Msonkhano Wosayenera: Pa nthawi ya msonkhano, onetsetsani kuti zigawo zonse zikugwirizana bwino ndi ma torque malinga ndi zomwe wopanga amapanga.
Kunyalanyaza Kusamalira: Kuyendera ndi kukonza nthawi zonse ndikofunikira. Kunyalanyaza izi kungayambitse mavuto monga scuffing, zomwe zikanapewedwa ndi kulowererapo kwanthawi yake.
Pressure and Surface Finish: Sinthani kukakamiza kwa zingwe zotsekemera mosamala. The post-honing pamwamba roughness (Mtengo wa Ra) asapitirire 3.2 μm.
Kuyeza ndi Kusintha: Onetsetsani nsonga zofananira ndi zigwa pamtunda wa silinda. Cholakwika chozungulira cha silinda chiyenera kukhala mkati 0.005 mm, ndi cholakwika cha cylindricity mkati 0.015 mm. Khalani ndi chilolezo pakati pa silinda ndi pistoni ya 0.03 mm.
3. Kusamalira ndi Kuyendera Nthawi Zonse
Njira Yoyendera: Nthawi zonse fufuzani zigawo zonse za injini, kuyang'ana pa makoma a silinda ndi mphete za pistoni pazizindikiro zoyambirira za kuvala.
