N'ozuzu, elu na njedebe ihu nke mgbanaka mbụ bụ chrome-plated, na ndị ọzọ yiri mgbanaka piston nwekwara ike ịbụ chrome-plated. Ihe mgbanaka piston nke nnukwu ụgbọ mmiri diesel abụghị nke chrome, na ihe mkpuchi cylinder bụ chrome-plated. Ka ọ dị ugbu a, a na-emepụta mgbanaka piston nke chrome-ceramic composite, na ule ahụ na-egosi na ego a na-eyi bụ ihe na-erughị ọkara nke mgbanaka piston nke chrome-plated, ma na-ebelata nha nke eriri cylinder kwekọrọ.

Molybdenum sprayed oyi akwa nwere mma iyi nguzogide, copyability na tensile cylinder resistance karịa chrome plating. Igwe silinda nchara nke chrome na mgbanaka piston na-efesa molybdenum nwere ike ịmepụta ezigbo ụzọ esemokwu.

N'ígwé siri ike nke a na-ejikarị eme ihe maka mgbanaka piston bụ aluminum oxide, titanium oxide na chromium oxide, karịsịa aluminum titanate mkpuchi.

Usoro ntinye ion na-ejikọta ihe kemịkalụ ahọpụtara n'ime ngwugwu n'ime eriri cylinder na mgbanaka piston. A na-ejikọta oyi akwa ion injection na elu nke cylinder liner na piston mgbanaka, na-enwekwa mmetụta dị nta n'elu adịghị ike na akụkụ ziri ezi. E nwere tumadi plasma plating TiN mgbasa oyi akwa, elu ion plating CrN hard film, obere earth ion carburizing na na. Nnwale na-egosi na imenyụ na ịgbanye mgbanaka piston na nitriding n'elu ion ụwa na-adịghị ahụkebe nwere ike imeziwanye nguzogide mgbanaka piston ma gbatịa ndụ ọrụ ya nke ukwuu.

Ngwọta mmanu mmanu dị n'elu bụ iji kemịkal mepụta ihe nkiri ngwakọta igwe n'elu igwe, igwe na ihe nchara ntụ ntụ iji rụọ ọrụ mmanye onwe ya. E nwere tumadi uzuoku phosphating ọgwụgwọ film guzobe na alkaline oxidation ọgwụgwọ film guzobe, nke na-eji maka lamination nke piston yiri mgbaaka na cylinder liners nke obere esịtidem combustion engines. Na mgbakwunye, nitriding mmiri mmiri na nitriding dị nro nwekwara ike imeziwanye nkwụsi ike nke igwe cylinder iron.

Ihe dị iche iche na-emetụta nkwụsi ike nke ụdị esemokwu ahụ, n'ihi ya, a na-emewanye elu elu ya na ọtụtụ nkwụsi ike. Dị ka ihe atụ: ihe ngwọta ọkụ na sulfurizing, carburizing quenching na sulfurizing, soft nitriding na sulfurizing, nitroxide na Nchikota chrome plating na molybdenum ịgba.