Ubuso bwinyuma bwimpeta ya piston bukunze gushyirwaho kugirango tunoze imikorere yimpeta, nko guhindura ibiranga guterana cyangwa gukuramo ibice. Bimwe mubitwikiriye, nkibishishwa byimyuka nkibishishwa byimyuka yumubiri cyangwa imiti, akenshi bitezimbere kwinjiza impeta.

Alu-coat ni umuringa udashobora gushonga ushingiye kuri alumina, wakozwe mu mpera za 90 kugirango ugabanye igihe cya moteri nshya ya MAN B & W MC.

MAN Diesel yazanye igipande cya aluminiyumu gishingiye ku buryo bunoze bwo kwiruka mu biranga kwiruka no kwambara igice. Uburambe bunini hamwe nitsinzi 100% bituma alu-coat igaragara. 1 kwiruka-muburyo bwo gutwikira. Alu-ikoti igabanya igihe cyo kugerageza kandi ikora igihe cyizewe kandi cyizewe. Uyu munsi, impeta zometse kuri aluminiyumu zikoreshwa muri moteri nshya no muri moteri ishaje hamwe na honing na kimwe cya kabiri. Igikoresho cya aluminiyumu kandi kigabanya amavuta ya silinderi mugihe cyo kumena.

Alu-coat ni igice cyoroshye-cyoroshye cya spray giteye hamwe nubugari bwa mm 0,25. "Yashushanyije" kandi isa nkaho itoroshye, ariko yahise ikora ubuso bworoshye.

Matrix yoroshye kuri coating itera ibintu bitangirika cyane bigasohoka hejuru yimpeta kandi bigakora hejuru yumurongo wa liner muburyo buke. Matrix irashobora kandi gukoreshwa nka buffer yumutekano kugirango ikumire ibibazo byambere byo gukuramo mbere yo kumena.

Inyungu zo guhindura ibintu ni nyinshi. Iyo ushyizwe mubihuru byakoreshwaga mbere, aluminiyumu ntikuraho gusa igihe cyo gukora impeta ya piston. Iyi coating nayo itanga umutekano winyongera mugihe ukemura ibibazo byimikorere. Ubu buryo busanzwe butwara amasaha 500 kugeza 2000. Ingaruka zo gukuraho gato impeta ya piston ya aluminiyumu ituma biba byiza gusimbuza impeta za piston zambarwa zijyanye no kuvugurura piston. Imirongo ifite impeta zo kwambara akenshi yerekana ibimenyetso byerekana inenge na / cyangwa guhanagura ibice bitoboye kandi bisize. Alu-ikoti itera kwambara kumurongo ushaje kurwego rwa microscopique, mubisanzwe birahagije kugirango hubakwe imiterere yingenzi yo gufungura umurongo, ningirakamaro kuri tribologiya yumurongo wa / amavuta / sisitemu yimpeta ya piston.