I-piston ring ingenye yezingxenye eziyinhloko zenjini. Izinto zendandatho ye-piston kufanele zibe namandla afanelekile, ubulukhuni, ukuqina nokumelana nokukhathala, ukumelana nokugqoka okuhle kakhulu, ukumelana nokushisa nokumelana nokugqwala. Ngokuthuthukiswa kwezinjini zesimanje ngokuya ngesivinini esikhulu, umthwalo omkhulu, kanye nokukhipha umoya omncane, kuyilapho izimfuneko zezinto zokukhala kwepiston ziya ngokuya ziba phezulu, ukwelashwa kwendawo nakho kungaphansi kwezidingo eziphezulu. Ubuchwepheshe obusha buya ngokuya busetshenziswa noma buyasetshenziswa ekwelapheni ukushisa kwamasongo e-piston, njenge-ion nitriding, izitsha zobumba, i-nanotechnology, njll. Lesi sihloko sethula kakhulu ukwelashwa kobumba bokungeniswa kwe-piston.

Ukwelashwa kwe-ceramic yokucwiliswa kweringi ye-piston ubuchwepheshe be-plasma chemical vapor deposition technology obusezingeni eliphansi (i-PCVD ngamafuphi). Ifilimu ye-ceramic enogqinsi lwama-micrometer ambalwa ikhuliswa ebusweni be-substrate yensimbi. Ngesikhathi esifanayo lapho i-ceramic ingena endaweni yensimbi, i-ion yensimbi iphinde ingene ku-ceramic Ifilimu ingena ngaphakathi futhi yenza ukusabalalisa okubili, ibe "ifilimu ehlanganisiwe ye-cermet". Ikakhulukazi, inqubo ingakhulisa insimbi eyinhlanganisela ye-ceramic ku-substrate yensimbi okunzima ukuthi izinto ze-semiconductor ezifana ne-chromium zisakazeke kuyo.

Le "ifilimu eyinhlanganisela yensimbi ye-ceramic" inezici ezilandelayo:

1. Ukukhula ekushiseni okuphansi ngaphansi kuka-300℃ ngaphandle kwanoma yimuphi umthelela omubi eringini yepiston;

2. Insimbi engaphezulu kwendandatho ye-piston isakazwa ngezindlela ezimbili nge-boron nitride ne-cubic silicon nitride endaweni ye-vacuum plasma, yakha into esebenzayo ene-gradient gradient, ngakho ihlanganiswe ngokuqinile;

3. Ngenxa yokuthi ifilimu encane ye-ceramic nensimbi yakha i-oblique gradient functional material, ayifezi nje indima ekubopheni ngokuqinile isendlalelo soguquko, kodwa futhi ishintsha amandla onqenqema lwe-ceramic bond, ithuthukise ukumelana nokugoba, futhi ithuthukise kakhulu indawo engaphezulu. ubulukhuni nokuqina kwendandatho;

4. Ukumelana okungcono nokushisa okuphezulu kokugqoka;

5. Umthamo we-antioxidant othuthukisiwe.

Ngenxa yokuthi ifilimu ye-ceramic inomsebenzi wokuzigcoba, indandatho yepiston efakwe indandatho ye-ceramic piston inganciphisa i-coefficient ye-friction yenjini ngo-17% 30%, futhi inani lokuguga phakathi kwalo kanye ne-friction pair liyancipha ngo-2/ /5 1/2, futhi ingancishiswa kakhulu. Ukudlidliza kwenjini nomsindo. Ngesikhathi esifanayo, ngenxa yokusebenza kahle kokuvala uphawu phakathi kwefilimu ye-ceramic ne-cylinder liner yenjini, ukuvuza komoya okujwayelekile kwepiston nakho kwehle ngo-9.4%, futhi amandla enjini angakhuphuka ngo-4.8% 13.3%. Futhi yonga uphethiloli 2.2% 22.7%, uwoyela wenjini 30% 50%.