A na-ekpuchikarị elu elu nke mgbanaka piston iji meziwanye njirimara arụmọrụ nke mgbanaka ahụ, dị ka site n'ịgbanwe esemokwu ma ọ bụ abrasion nke elu. Ụfọdụ mkpuchi, dị ka mkpuchi nkwụnye ego dị ka ihe mkpuchi anụ ahụ ma ọ bụ kemịkal, na-emekarị ka njirimara ntinye nke mgbanaka dị mma.

Alu-kootu bụ ihe mkpuchi ọla kọpa na-adịghị agwụ agwụ nke dabere na alumina, nke emepụtara na njedebe 1990 iji belata oge nke igwe MAN B & W MC ọhụrụ.

MAN Diesel ewebatala mkpuchi aluminom dabere na njirimara na-agba ọsọ na-arụ ọrụ nke ọma nke na-agba ọsọ na nke nwere ọkara. Ahụmahụ dị ukwuu na ọnụego ọganiihu 100% na-eme ka alu-coat pụta ìhè. Nhọrọ mkpuchi 1 na-agba ọsọ. Alu-coat na-ebelata oge ikpe ma mepụta oge nkwụsịtụ dị mma na ntụkwasị obi. Taa, a na-eji mgbanaka mkpuchi aluminom mee ihe na engines ọhụrụ na n'ime igwe ochie nke nwere honing na ọkara-honing bushes. Ihe mkpuchi aluminom na-ebelatakwa oriri mmanụ cylinder n'oge nkwụsị.

Alu-coat bụ mkpuchi mkpuchi ọkụ na-adị nro nke nwere ọkpụrụkpụ nke ihe dịka 0.25 mm. Ọ "na-ese" na anya a bit ike ike, ma ngwa ngwa kpụrụ a ezigbo contoured na-agba ọsọ elu.

Matrix dị nro na mkpuchi ahụ na-eme ka ihe siri ike na-esighi ike na-apụta na elu na-agba ọsọ nke mgbanaka ahụ ma na-eme ihe na-agba ọsọ nke liner n'ụzọ dị ntakịrị. Enwere ike iji matriks ahụ dịka nchekwa nchekwa iji gbochie nsogbu abrasion nke mbụ tupu nbibi agwụchaa.

Uru ndị dị na retrofitting dị ọtụtụ. Mgbe etinyere ya na bushes eji emebu, ihe mkpuchi aluminom abụghị naanị na-ewepụ oge ịgba ọsọ nke mgbanaka piston. Ihe mkpuchi a na-enyekwa oke nchekwa nchekwa mgbe ọ na-eme ihe gbasara ọrụ. Usoro a na-ewekarị awa 500 ruo 2,000. Mmetụta abrasive dị ntakịrị nke mgbanaka piston nwere mkpuchi aluminom na-eme ka ha dị mma maka dochie mgbanaka piston a na-eyi n'ihe metụtara ngbanwe nke piston. Ngwunye nwere mgbanaka eyi na-egosipụtakarị akara nke ntụpọ agba na / ma ọ bụ ọfụfụ nke gbawara agbawa ma na-egbu maramara. Alu-uwe na-eme ka uwe akwa akwa na-eyi n'ike n'ike n'ike, nke na-ezurukarị iji wughachi usoro mmeghe dị mkpa nke lining, nke dị oke mkpa maka tribology nke lining / mmanụ / piston mgbanaka.