Piston mphete ndi imodzi mwamagawo apakati a injini. Zida za mphete ya pistoni ziyenera kukhala ndi mphamvu zoyenera, kulimba, kulimba komanso kukana kutopa, kukana kuvala bwino, kukana kutentha ndi kukana dzimbiri. Ndi chitukuko cha injini zamakono zopita ku liwiro lalikulu, katundu wambiri, ndi mpweya wochepa, pamene zofunikira za zipangizo za mphete za pistoni zikukwera kwambiri, chithandizo chapamwamba chimakhalanso ndi zofunikira zapamwamba. Njira zamakono zochizira kutentha zakhala zikugwiritsidwa ntchito kapena zikugwiritsidwa ntchito pochiza mphete za pistoni, monga ion nitriding, zoumba pamwamba, nanotechnology, ndi zina zotero.

Piston kumiza mphete ceramic mankhwala ndi otsika kutentha plasma chemical vapor deposition teknoloji (PCVD mwachidule). Filimu ya ceramic yokhala ndi makulidwe a ma micrometer angapo amakula pamwamba pa gawo lapansi lachitsulo. Pa nthawi yomweyi pamene ceramic imalowa muzitsulo zachitsulo, zitsulo zazitsulo zimalowanso mu ceramic Firimuyi imalowa mkati ndikupanga kufalikira kwa njira ziwiri, kukhala "filimu yophatikizana ya cermet". Makamaka, njirayi imatha kukulitsa chitsulo chophatikizika cha ceramic pagawo lachitsulo chomwe chimakhala chovuta kuti zida za semiconductor monga chromium zifalikire.

"filimu yachitsulo ya ceramic" ili ndi zotsatirazi:

1. Kukula pa kutentha kochepa pansi pa 300 ℃ popanda vuto lililonse pa mphete ya pistoni;

2. Chitsulo chomwe chili pamwamba pa mphete ya pisitoni chimafalikira njira ziwiri ndi boron nitride ndi cubic silicon nitride mu plasma ya vacuum state, kupanga zinthu zogwira ntchito ndi gradient gradient, kotero zimagwirizanitsidwa mwamphamvu;

3. Chifukwa Ceramic woonda filimu ndi zitsulo kupanga oblique gradient zinchito zakuthupi, izo sikuti amangochita mbali mwamphamvu n'kumanga kusintha wosanjikiza, komanso kusintha mphamvu ya ceramic chomangira m'mphepete, bwino kukana kupinda, ndi bwino kwambiri pamwamba. kuuma ndi kulimba kwa mphete;

4. Bwino kutentha kutentha kumavala kukana;

5. Kupititsa patsogolo mphamvu ya antioxidant.

Chifukwa filimu ya ceramic imakhala ndi ntchito yodzipangira yokha, mphete ya pistoni yopangidwa ndi mphete ya ceramic pisitoni imatha kuchepetsa kugunda kwa injini ndi 17% 30%, ndipo kuchuluka kwa mavalidwe pakati pake ndi mikangano kumachepetsedwa ndi 2/ /5 1/2, ndipo ikhoza kuchepetsedwa kwambiri. Kugwedezeka kwa injini ndi phokoso. Pa nthawi yomweyi, chifukwa cha ntchito yabwino yosindikizira pakati pa filimu ya ceramic ndi injini ya silinda ya injini, mpweya wotuluka wa pisitoni watsikanso ndi 9.4%, ndipo mphamvu ya injini ikhoza kuwonjezeka ndi 4.8% 13.3%. Ndipo kupulumutsa mafuta 2.2% 22,7%, injini mafuta 30% 50%.