Principe de fonctionnement des bushings en alliage d'aluminium

Dëgër bu rëy ak Matrix buy xeex wear: Zinc -aleage aluminium amna lu tollu ci 27% aluminium. Ginaaw biñu ko dëgëree, dañuy forme ay fase yu bari yuy dooleel composé intermétallique aluminium - zinc, loolu dafay gëna dëgëral dëgëraay bi ak dooley traction (ba 400–430 MPa), di joxe structure buy jàppale microscope bu dëgër ci diiru friction, ak wàññi wear.

-Mekanism buy lubrifier boppam:
Ci biir bushing yiñ samp ci graphite, graphite bu sell lool dañu koy samp ci biir pore yi ci kaw matrix bi (muy muur 20%–30% ci barabu friksioŋ bi). Bu friksioŋ amee, graphite dafay dem ci kaw arbre biy boole ci suufu jëf thermique ak mekanik, daal di nekk filmu lubrifiant buy wéy, wàññi koeffisientu friksioŋ bi ba 0.06–0.12, def lubrication bu amul diw.

Ci diwu porous -am structure polymer, diwu -macceer polymer impregné ñu ngi duggu ci biir bushing bi, di wéy di bàyyi lubrifiant jaaraleko ci sistem "micro{2}}joxe diwu", wàññi direct metal{3}}to-metal.

Lubrication buñ jàppale ci liggéey bi: Yenn konseptioŋ yi dañuy àndaale ak pax yu am diw ak sistem yuy tëj silicone, loolu mooy tax diw bi ci biti yokk lubrication bi, ba noppi jëfandikoo elastisite silicone ngir tëj pax yi ci saasi, di tere diw di senn, ba noppi di yokk diggante yi ñuy toppatoo.

Njariñu poid bu woyof ak njëg: Densité zinc{0}}aluminium alloy mingi tollu ci 5.0 g/cm3, 40%–45% gëna woyof ci përëm alloy, ak njëgu macceer bu woyof bi 30%–40% ci përëm -macceer yu am njariñ, moo tax mu mëna jëfandikoo ci weight ak weight.