Kazhinji, chiso chepamusoro uye chekupedzisira chemhete yekutanga ndeye chrome-yakapfava, uye dzimwe mhete dzepiston dzinogonawo kuve chrome-yakaputirwa. Makuru emugungwa dizeli injini piston mhete hadzisi chrome-yakapfava, uye silinda liners ane chrome-yakapfatwa. Parizvino, chrome-ceramic composite coating piston ring yakagadziridzwa, uye bvunzo inoratidza kuti iyo yekupfeka iri pasi pehafu yeiyo chrome-plated piston mhete, uye iyo inopfeka yakawanda cylinder liner inoderedzwa zvakare.

Molybdenum yakapfapfaidza layer ine zvirinani kupfeka kuramba, kutevedzera uye tensile cylinder kuramba pane chrome plating. Chrome-plated simbi silinda liner uye molybdenum-yakapfapfaidzwa piston mhete inogona kuumba yakanaka friction peya.

Iwo anowanzo shandiswa akaomesesa maraya episton mhete ialuminium oxide, titanium oxide uye chromium oxide, kunyanya aluminium titanate coating.

Iyo ion implantation nzira inosanganisa yakasarudzwa kemikari zvinhu kuita bundle mucylinder liner uye piston mhete pamusoro. Iyo jekiseni ion layer inosanganiswa nepamusoro pecylinder liner uye piston mhete, uye ine zvishoma mhedzisiro pakushata kwepamusoro uye kurongeka kwedimensional. Kune kunyanya plasma plating TiN diffusion layer, pamusoro ion plating CrN yakaoma firimu, isingawanzo pasi ion carburizing uye zvichingodaro. Ongororo dzinoratidza kuti kudzima nekudzikamisa mhete yepiston uyezve nitriding pamusoro peasingawanzo pasi ion zvinogona kuvandudza zvakanyanya kupfekedzwa kwepiston mhete uye kurebesa zvakanyanya hupenyu hwayo hwesevhisi.

Surface lubrication treatment ndeyekugadzira kemikari simbi inosanganiswa firimu pamusoro pesimbi, simbi uye poda metallurgy zvinhu kuti uite basa rekuzvizora. Iko kune kunyanya steam phosphating yekurapa firimu kuumbwa uye alkaline oxidation kurapwa firimu kuumbwa, ayo anoshandiswa kuchenesa mhete dzepiston uye silinda liners ediki mukati meinjini dzinopisa. Uye zvakare, mvura nitriding uye yakapfava nitriding inogona zvakare kugadzirisa kupfeka kuramba kwesimbi silinda liner.

Kupokana kwekupfeka kweiyo friction pair inobatwa nemhando dzakasiyana siyana, saka iyo yepamusoro inowedzera kurapwa nekuwanda kupfeka kusagadzikana. Semuenzaniso: mhinduro yemoto uye sulfurizing, carburizing quenching uye sulfurizing, nitriding yakapfava uye sulfurizing, nitroxide uye musanganiswa wechrome plating uye molybdenum spray.