Ii-chain hub sprocketye-excavator ithwala umthwalo omkhulu womthelela ohlelweni lokusebenza.Uma i-excavator itshekile, isimo sokucindezeleka asisihle kakhulu. Ngokuvamile, lapho umgodi usebenza amahora angu-350,000 noma ngaphezulu, amazinyo e-chain hub sprokcet sprocket angase adilike noma aphuke, futhi ukuguga kwezinyo kanye nokuphuka kwezinyo engxenyeni ehlangene. ama-halves amabili e-chain hub sprocket abucayi kakhulu.Kufakazelwe ngokwenza ukuthi ukusebenzisa i-intert welding ukulungisa igiya lendandatho kulula futhi kuyashesha, futhi kungaqinisekisa ukusebenza kwawo wonke umshini.
Ngokusho komonakalo we-chain hub sprocket, thola indawo yomgodi omisiwe kanye nesigaba esilimele okufanele sishintshwe, bese usika ingxenye yamazinyo ukuze ithathelwe indawo yokusika igesi.Yenza okufakiwe ngokwezingxenye ze-sprocket ezidinga ukulungiswa, noma usike ingxenye engcono yamazinyo e-sprocket engxenyeni ehambisanayo yelinye igiya lendandatho endala ngesiqiniseko se-pitch, futhi usike umumo wegroove lapho kuhlangana khona.nquma indawo yokufaka imbobo yokulungisa, uyishaye futhi uyilungise engxenyeni ehambisanayo ye-sprocket hub chain, futhi unake ukuqinisekisa ukunemba kwendawo yokulungisa imbobo.Ukuze uqinisekise ukuthi i-weld inamandla aphezulu futhi ingakwazi ukumelana nomthelela omkhulu nokudlidliza, ububanzi be-Φ4 mm joint 507 electrode ikhethiwe.I-electrode kufanele ibhakwe ihora elingu-1 ku-250 ~ 350 ℃ ngaphambi kokusetshenziswa.Umshini wokushisela we-arc we-Ax3500 DC we-reverse welding indlela, yamanje ngu-130 ~ 140 A.
Ngaphambi kokushisela, shisa i-welding surface ibe ngu-200 ℃ ngesibhamu esikhulu sokushisela igesi engu-2. Ngokufaka i-backfire weld, i-weld yokugcina ingathukuthelisa i-weld yangaphambili, okuzuzisa ukuqeda i-microstructure eqinile ekhiqizwa i-weld yangaphambili.Ngoba i-groove enkulu, i-weld yokuqala kufanele ihlanganiswe kancane kancane ukuze kuncishiswe ububanzi bokuhlangana futhi kunciphise okuqukethwe kwekhabhoni yensimbi.Lapho usebenzisa i-welding, i-electrode itshekela phambili cishe ngo-15 ° futhi iya phambili ngomugqa oqondile.Lapho uvala i-arc, kufanele kuqashelwe ukugcwalisa umgodi we-arc ukuze ugweme ukukhiqiza i-arc pit crack.Ngemva kokushisela, shaya ngokushesha i-weld nezinhlangothi zombili ngesando esincane esicijile ukuze ukhulule ukucindezeleka kuze kube yilapho kukhona izindawo eziminyene zokuphonswa kwe-weld. .Qhubeka ukushisela lapho ukushisela kuphola cishe ku-200 ℃.Indlela yokushisela ye-weld ngayinye ngemva kokushisela kokuqala iyafana naleyo yokushisela kokuqala.I-electrode inganyakaziswa kancane.Ukuze ugweme ama-pores, ungashwibi kakhulu. Ngemuva kokushisela, ukuze kuqedwe izicubu eziqinile nokucindezeleka, i-welding seam nezinhlangothi zombili zishisiswe cishe ku-600 ~ 650 ℃ nge-oxygen acetylene flame, futhi ukushisa kugcinwa 20 imiz.Khona-ke, i-welding seam ihlanganiswe ne-asbestos, i-hydrated lime powder noma isihlabathi esomile, futhi i-welding seam ipholiswa kancane kancane ekamelweni lokushisa.Sebenzisa isondo lokupholisha ukuze upholise i-weld, ukuze ukulungiswa kwe-sprocket ye-chain hub kuqediwe.
Isikhathi sokuthumela: Jul-16-2021
