20CrMnTi tšepe e bitsoa tšepe ea lisebelisoa, 'me likarolo tse ngata li sebelisa 20CrMnTi.
20CrMnTiphala ea tšepe e se nang moroaloe ka aroloa ka mefuta e meraro: e huloang ke serame, e chesang e kolobisitsoeng lephala e batang e khanyang e se nang seamless, ka litlhoko tse fapaneng le mekhoa e fapaneng.Leha ho le joalo, lihlopha tse ling li sebelisa tšepe e chitja ho hlahisa likarolo ntle le ho nahana ka ho nkela lipeipi tsa tšepe sebaka.Ho nkela sebaka sa 20CrMnTi phala ea tšepe e sa koaeloang ke serame ka tšepe e chitja ea 20CrMbTi ha e boloke feela lisebelisoa tse tala le lihora tsa mosebetsi, empa hape ho fokotsa litšenyehelo le ho eketsa tlholisano ea mebaraka.20CrMnTi le 30CrMnSiA liphaephe tsa tšepe tse sa koalehang tse huloang ke serame ke litšepe tse kentsoeng ka thata tse sebetsang hantle, tse thata haholo, tse thata ebile li sa senyehe, 'me li le thata ka mor'a ho chesa le ho tima, ho ba le tšusumetso e matla ea mocheso o tlase, ho cheseha ha mahareng, le ho sebetsa hantle kamora ho tloaeleha.20CrMnTiphala ea tšepe e sa koaeloang e batanghangata ke tšepe e tlaase ea carbon e nang le carbon content ea 0.17% - 0.24%.E sebelisoa haholo likoloing ho etsa lisebelisoa tsa phetisetso.Ke tšepe ea k'habone e thata e thata e mahareng, tšepe ea CrMnTi e mahareng, e thatafalang haholo.Tlas'a boemo ba ho etsa bonnete ba ho thatafala, e na le matla a phahameng le ho tiea, haholo-holo mocheso o tlaase oa tšusumetso e thata.20CrMnTi holim'a tšepe e entsoeng ka carburized le e thata.Machinability e ntle, deformation e nyane ts'ebetsong e khethehileng, le khanyetso e ntle ea mokhathala.Morero: bakeng sa likere, shafts, likarolo tsa Piston, joalo-joalo li sebelisetsoa likarolo tse fapaneng tse khethehileng tsa likoloi le lifofane.
20CrMnTi e tloaelehileng: GB/T 3077-1988
Litšobotsi le boholo ba ts'ebeliso ea20CrMnTi phala ea tšepe e hulang ka mokhoa o batang:
E sebelisoa ho etsa likarolo tsa bohlokoa tse nang le karolo e ka tlase ho 30mm e jereng lebelo le phahameng, mojaro o mahareng kapa o boima, tšusumetso le khohlano, joalo ka likere, lireng tsa likere, li-gear shaft crossheads, jj.
Sebopeho sa lik'hemik'hale sa 20CrMnTi phala ea tšepe e sa koaeloang ke serame (lintlha):
Khabone C: 0.17 ho isa ho 0.23
Silicon ea Silika: 0.17 ho isa ho 0.37
Manganese Mn: 0.80 ～ 1.10
Sebabole S: litaba tse setseng tse lumelletsoeng ≤ 0.035
Phosphorus P: litaba tse setseng tse lumelletsoeng ≤ 0.035
Chromium Cr: 1.00 ～ 1.3020CrMnTi phala ea tšepe e hulang ka mokhoa o batang
Nickel Ni: litaba tse setseng tse lumelletsoeng ≤ 0.030
Copper Cu: litaba tse setseng tse lumelletsoeng ≤ 0.030
Titanium Ti: 0.04-0.10
Thepa ea mochini ea 20CrMnTi e hulang ka mokhoa o batang ea tšepe e se nang seam:
matla a maholo σ b (MPa):≥1080(110)
tlhahiso ea matla σ (MPa):≥835(85)
bolelele δ 5 (％):≥10
Phokotso ea sebaka ψ (％): ≥45
Matla a amang Akv (J): ≥ 55
Boleng ba tšusumetso α kv (J/cm2):≥69(7)
Ho thatafala: ≤ 217HB
Saese ea mohlala: boholo bo se nang letho ba sampole ke 15mm
Tlhaloso ea phekolo ea mocheso le sebopeho sa metallographic sa 20CrMnTi phala ea tšepe e se nang seam e huloang ke serame:
Tlhaloso ea phekolo ea mocheso: ho tima: 880 ℃ ka lekhetlo la pele, 870 ℃ lekhetlo la bobeli, ho pholile ha oli;Mocheso oa 200 ℃, pholileng ea metsi le moea o pholileng.
Pipe ea tšepe ea 20crmnti ke tšepe e thata e mahareng, e thatafalloang hantle ka lebaka la motsoako o mongata oa Cr, Mn le Ti.Bophara ba bohlokoa ba ho tima oli bo ka bang 40mm;Ka mor'a carburizing le quenching, e na le phahameng apara ho hanyetsa le ho tiea ho phahameng, haholo-holo tlaase mocheso tšusumetso toughness;Tšepe e na le ts'ebetso e ntle ea carburizing, mokhoa o monyane oa kholo ea lijo-thollo, ho tima ka kotloloho le deformation e nyane.20CrMnTi tšepe ha e le hantle e ka sebelisoa ho hlahisa likarolo tse boima tsa carburized tse nang le karolo e ka tlase ho 30 ℃, 'me e ka mamella lebelo le phahameng, mojaro o mahareng kapa mojaro o boima, tšusumetso le likhohlano, joalo ka likere, li-gear shafts, mehele ea likere, mehele ea sefapano, li-claw clutches. , liboko, joalo-joalo.
Motsoako oa lik'hemik'hale oa pipe ea tšepe ea 20crmnti e kenyelletsa carbon C, silicon Si, manganese Mn, sebabole S, phosphorus P le chromium Cr.Ts'ebetso ea tlhahiso ea lipeipi tsa tšepe ea 20crmnti: tšepe ea carbon, ho qeta ho phalla, phekolo ea mocheso e khanyang e se nang oxidation (NBK state), tlhahlobo e sa senyeheng, lerako le ka hare la tšepe le hlatsuoa ka lisebelisoa tse khethehileng 'me le hlatsuoa tlas'a khatello e phahameng, oli e thibelang mafome ka phala ea tšepe. alafshoa bakeng sa ho thibela mafome, 'me likoahelo ka mahlakoreng ka bobeli li alafshoa bakeng sa ho thibela lerōle.Likarolo tsa phala ea tšepe ea 20crmnti: marako a kahare le kantle a phala ea tšepe a na le ho nepahala ho phahameng le pheletso e phahameng, phala ea tšepe ha e na lera la oxide ka mor'a kalafo ea mocheso, lerako le ka hare le na le bohloeki bo phahameng, phala ea tšepe e na le khatello e matla, ho kobeha ha serame ha ho joalo. deform, 'me katoloso le flattening ha ba na mapetsong.
Shandong Haihui Steel Co., Ltd. e hlahisa batang phuthoa ho nepahala e khanyang seamless lipeipi tšepeea GB 10 #, GB20 #, GB35 #, GB45 #, 20Cr, 40Cr, 16Mn, 35CrMo, 20CrMoTi, Gcr15.
Nako ea poso: Jan-16-2023