Izidingo zokusetshenziswa kwamazinga aqine kakhulu ekukhiqizweni kwezimoto kanye nokusetshenziswa kukaphethiloli kuholele ekutheni yonke imboni yezimoto iphokophele ukuhlangabezana nalezi ntuthuko.Ukuze kuncishiswe ukusetshenziswa kukaphethiloli kanye nokukhipha umoya, indlela evamile kube ukunciphisa isisindo semoto.Ngakho-ke i-aluminium alloy cylinder block esikhundleni se-cast iron iye yashintsha yaba umkhuba wokuthuthuka.Ukwengeza, ukusebenza kahle kokuvutha kwenjini kungathuthukiswa ngokuphawulekayo ngokunciphisa ukungqubuzana ngaphakathi kwenjini.Ngakho-ke ubuchwepheshe obusha benjini yemoto ye-“cylinder Liner less” budonse ukunaka kwabakhiqizi abaningi bezimoto.
Ubuchwepheshe obuncane be-cylinder liner yezinjini zezimoto bufezwe ngokusungulwa kobuchwepheshe bokufafaza okushisayo.Ukusetshenziswa kokufafaza okushisayo kwenziwa ngesikhathi senqubo yokukhiqiza injini.Isifutho sisetshenziswa phezu kwamabhore esilinda enjini ye-aluminum.Isifutho sengeza isendlalelo esingagugi sengxube yengxube ye-carbon ephansi ukuze sithathele indawo yesilinda yesilinda yensimbi eyisilinda.Ukucutshungulwa kwamabhulokhi angama-cylinder angenawo ama-liner kufaka phakathi izingxenye zesistimu nezinhlelo zokusebenza ezilandelayo:
● ukulingisa
● ukukhanda ama-cylinder block
● ukuthumela umbhalo-roughing up the cylinder bore
● ukushisa kuqala indawo
● ukufutha okushisayo
● ukuqeda imishini
● qeda ukucija
Izinqubo eziyinhloko zobuchwepheshe be-cylinder less liner zenziwa ezindaweni ezi-coaxial (amasilinda amabili ama-cylindrical surfaces aqukethe imigqa edlula emibuthanweni eqondile endizeni enikeziwe futhi e-perpendicular kule ndiza) ngokugwedla kwendawo yesilinda.Lokhu kufezwa ngu:
Inhloso yokwehliswa kwengaphezulu iyadingeka ukuze kwandiswe indawo engaphezulu ukuze kwakhiwe isakhiwo esingaphezulu esivumela ukunamathela ukuthi kuhlanganiswe ngomshini ebusweni be-substrate, kukhuphule amandla okulunywa kwemishini kokumboza ku-substrate futhi kuqhubeke kusebenze futhi kuthuthukise indawo engaphezulu. Amandla okubopha okubalulekile.Ukwenziwa roughening phezu komhlaba kwenziwa ngezindlela ezahlukene, njengokuqhunyiswa kwenhlabathi, ukubhodloza ngomshini, kanye ne-high-pressure water-jet roughening.I-grit blasting iyindlela yokwelapha evame ukusetshenziswa kakhulu futhi isebenza kukho konke ukurhashaza kwensimbi.
Izingxenye zensimbi zingahlanzwa ngokulandelayo, zibe rough futhi zisebenze kakhulu ngemva kokuqhunyiswa kwesihlabathi.Le ndawo eqinile ibe isihlanzwa ngomoya owomile ongenawo uwoyela ophezulu ngaphambi kokufafaza inqubo yokufafaza.
I-roughing (Surface Activation) nayo ingenziwa ngokusebenzisa umshini.Futhi kunezinqubo lapho i-aluminium surface yakheka khona ibe umkhonto othile.Lokhu kwenziwa ngokusebenzisa isikhungo semishini ye-axis eyodwa kanye nokusetshenziswa kwamathuluzi okusika afakiwe.Lokhu ukucutshungulwa kanye ukuze kuqedelwe izici ngendlela engabizi kakhulu.Endabeni yesilinda sensimbi esithululela kakhulu, ukuguga nokudabuka kwamathuluzi kwadalwa ngokuvamile okwenza lokhu kungamukeleki ngokomnotho.
I-high-pressure jet water roughening isebenza kuphela kusilinda se-aluminum futhi ayisebenzi nge-cast iron cylinder.Inqubo yejethi yamanzi ayisebenzisi ama-abrasive abizayo.Nokho ukusetshenziswa okuqondile kwejethi eliwuketshezi endaweni engaphansi kwe-substrate kufezwa kuphela lapho ingaphezulu lomile.Futhi noma kunjalo inani lobukhulu obuphezulu liphansi uma liqhathaniswa nezinye izinqubo.
Ukuqina kobuso njengenqubo eyinhloko kubuchwepheshe obungewona amasilinda kuthinta ngokuqondile amandla okubopha kanye nezakhiwo zokumboza zokumboza.Ngakho-ke, kubalulekile ukunaka inqubo yokuqina kwendawo lapho kusetshenziswa ubuchwepheshe be-cylinder less cylinder block.Ukukhethwa kwendlela efanelekile yokugwedla kubalulekile ekuzuzeni ukwenziwa kusebenze okungcono kakhulu kwendawo kanye nempumelelo yokukhiqiza.
Isikhathi sokuthumela: May-26-2021
