1. Impeta ya Nitriding: Ubukomere bwurwego rwa nitride iri hejuru ya 950HV, ubwitonzi ni icyiciro cya 1, bufite abrasion nziza na ruswa, imbaraga zumunaniro mwinshi, kurwanya ruswa nyinshi no kurwanya kurwanya ifatira; piston impeta ihindagurika nto.
. Dukurikije amakuru afatika, “Nyuma ya chrome isahani kuruhande rwa piston impeta, kwambara impeta birashobora kugabanuka cyane. Kuri moteri ifite ubushyuhe buringaniye nuburemere, uburyo bwavuzwe haruguru burashobora kugabanya kwambara impeta ya piston kuri 33 kugeza kuri 60 ”.
3. Impeta ya fosifatiya: Binyuze mu kuvura imiti, hakozwe urwego rwa firime ya fosifati hejuru yimpeta ya piston, ishobora kubuza ibicuruzwa kwangirika no kunoza imikorere yambere yimpeta.
4. Impeta ya Oxidation: Mugihe cyubushyuhe bwo hejuru hamwe na okiside ikomeye, hakorwa firime ya oxyde hejuru yibyuma, ifite imbaraga zo kurwanya ruswa, amavuta yo kurwanya anti-friction kandi igaragara neza. Hariho na PVD nibindi.
