Mgbanaka piston bụ otu n'ime akụkụ ndị bụ isi nke injin ahụ. Ihe nke mgbanaka piston kwesịrị inwe ike kwesịrị ekwesị, ike siri ike, ngbanwe na ike ọgwụgwụ, ihe mkpuchi mkpuchi dị mma, nkwụsị ọkụ na nkwụsị nke corrosion. Site na mmepe nke engines nke oge a na-agba ọsọ dị elu, ibu dị elu, na ikuku dị ala, ebe ihe ndị a chọrọ maka ihe mgbanaka piston na-adịwanye elu, ọgwụgwọ elu ahụ dịkwa n'okpuru ihe ndị dị elu. More na ndị ọzọ okpomọkụ ọgwụgwọ teknụzụ e ma ọ bụ na-eji na okpomọkụ ọgwụgwọ nke piston yiri mgbaaka, dị ka ion nitriding, elu ceramics, nanotechnology, wdg Isiokwu a tumadi ewebata infiltration seramiiki ọgwụgwọ nke piston mgbanaka.

Piston mgbanaka immersion ọgwụgwọ seramiiki bụ teknụzụ ikuku kemịkalụ plasma dị ala (PCVD maka mkpụmkpụ). A na-etolite ihe nkiri seramiiki nke nwere ọkpụrụkpụ nke ọtụtụ micrometers n'elu ala metal. N'otu oge ahụ mgbe seramiiki na-abanye n'ime elu igwe, ions metal na-abanyekwa na seramiiki Ihe nkiri ahụ na-abanye n'ime ma na-emepụta mgbasa ozi ụzọ abụọ, ghọọ "cermet composite film". Karịsịa, usoro ahụ nwere ike itolite ihe seramiiki mejupụtara metal na mkpụrụ osisi nke siri ike maka ihe semiconductor dị ka chromium ịgbasa n'ime.

Nke a "metal ceramic composite film" nwere àgwà ndị a:

1. Na-eto eto na obere okpomọkụ n'okpuru 300 ℃ na-enweghị mmetụta ọjọọ ọ bụla na piston mgbanaka;

2. Ngwongwo dị n'elu mgbanaka piston na-enweta mgbasa ozi ụzọ abụọ na boron nitride na cubic silicon nitride na ikuku plasma, na-emepụta ihe na-arụ ọrụ na gradient gradient, ya mere a na-ejikọta ya;

3. N'ihi na seramiiki mkpa film na metal na-etolite oblique gradient ọtọ ihe onwunwe, ọ bụghị nanị na-arụ ọrụ na ike bonding mgbanwe oyi akwa, ma na-agbanwe ike nke seramiiki nkekọ ọnụ, mma ekwe iguzogide, na budata mma elu. ike na ike nke mgbanaka;

4. Mma elu okpomọkụ eyi mgbochi;

5. Enwetara ikike antioxidant.

N'ihi na ihe nkiri seramiiki nwere ọrụ mmanye onwe ya, mgbanaka piston nke etinyere na mgbanaka piston seramiiki nwere ike ibelata ọnụọgụ nke injin ahụ site na 17% 30%, na ọnụ ọgụgụ nke iyi n'etiti ya na ụzọ esemokwu na-ebelata site na 2/ /5 1/2, na ọ nwere ike belata nke ukwuu. Igwe ịma jijiji na mkpọtụ. N'otu oge ahụ, n'ihi arụmọrụ dị mma n'etiti ihe nkiri seramiiki na engine cylinder liner, nkezi ikuku nke piston ebelatala site na 9.4%, na ike engine nwere ike ịbawanye site na 4.8% 13.3%. Na-echekwa mmanụ ụgbọala 2.2% 22.7%, engine mmanụ 30% 50%.