Inkampani Shandong Weichuan Metal Prodducts Co., Ltd.

Iwaranti yomkhiqizi wewaranti ye-42CrMo alloy steel pipe

Incazelo emfushane:

Inhloso yepayipi lensimbi elingenamthungo elingu-42CrMo: insimbi ekhethekile yebhuloho yi-“42CrMo”, insimbi ekhethekile yegida lezimoto yi-“42CrMo”, kanti insimbi ekhethekile yomkhumbi wengcindezi ithi “42CrMo”.


Imininingwane Yomkhiqizo

Omaka bomkhiqizo

Incazelo

Inhloso yepayipi lensimbi elingenamthungo elingu-42CrMo: insimbi ekhethekile yebhuloho yi-"42CrMo", insimbi ekhethekile yegida yemoto yi-"42CrMo", kanti insimbi ekhethekile yomkhumbi wengcindezi ithi "42CrMo". Lolu hlobo lwensimbi luthuthukisa izakhiwo zensimbi ngokulungisa okuqukethwe kwekhabhoni (c). Ngakho-ke, ngokusho kokuqukethwe kwekhabhoni, lolu hlobo lwensimbi lungahlukaniswa lube: insimbi ephansi ye-carbon - okuqukethwe kwekhabhoni ngokuvamile kungaphansi kuka-0.25%, njengensimbi engu-10 no-20; I-Medium carbon steel - okuqukethwe kwekhabhoni ngokuvamile kuphakathi kuka-0.25 ~ 0.60%, njengensimbi engama-35 no-45; I-high carbon steel - okuqukethwe kwekhabhoni ngokuvamile kungaphezu kuka-0.60%. Lolu hlobo lwensimbi aluvamile ukusetshenziswa ekwenzeni amapayipi ensimbi. Insimbi engu-42CrMo iyinsimbi enamandla aphakeme kakhulu enamandla amakhulu nokuqina, ukuqina okuhle, akukho ukufutheka okusobala okusobala, umkhawulo wokukhathala okuphezulu kanye nokumelana nomthelela omningi ngemva kokwelashwa kokucisha nokushisa, kanye nokuqina okuhle komthelela wezinga lokushisa eliphansi. Insimbi ye-42CrMo ifanele ukukhiqiza isikhunta sepulasitiki esikhulu nesiphakathi nendawo esidinga amandla athile nokuqina. Ukuqina: annealed, 147 ~ 241hb, 42CrMo

Izakhiwo zikamshini we-42CrMo

Amandla e-Tensile σ b (MPa): ≥1080(110)

Amandla esivuno σ s (MPa): ≥930(95)

Ubude δ 5 (%): ≥12

Ukwehliswa kwendawo ψ (%): ≥45

Impact energy Akv (J): ≥ 63

Inani lokuqina komthelela α kv (J/cm2): ≥78(8)

Ukuqina: ≤ 217hb

Ukuze kuthuthukiswe impilo yesevisi ye-die izikhathi ezingaphezu kwezi-800000, indlela yokuqina yokucisha kanye nezinga lokushisa eliphansi lingasetshenziswa kunsimbi eqinile ngaphambili. Ngesikhathi sokucisha, kufanele kushiswe ku-500-600 ℃ amahora angu-2-4, bese igcinwa ku-850-880 ℃ isikhathi esithile (okungenani amahora ama-2), ipholile emafutheni kuya ku-50-100 ℃ futhi ipholiswe ngomoya. Ubunzima ngemuva kokucisha bungafinyelela ku-50-52hrc. Ukuze uvimbele ukuqhekeka, kufanele ushiswe ku-200 ℃ ngokushesha. Ngemuva kokushisa, ubulukhuni bungagcinwa ngaphezu kwama-48hrc. Inqubo yokwelapha i-vanadization yebhavu kasawoti engathathi hlangothi yensimbi engu-42CrMo. Isendlalelo se-carbide singatholwa ngokwelashwa kwe-vanadization kasawoti okungathathi hlangothi kwensimbi engu-42CrMo.

1. I-Carbon vanadium compound, ungqimba lwe-carburized lunesakhiwo esifanayo, ukuqhubeka okuhle nokubumbana, ukujiya okufanayo, isakhiwo esihlangene, ukuqina kwe-microhardness nokumelana nokugqoka okuphezulu, nokuqina kobuso, ukumelana nokugqoka kanye nokumelana nokunamathela kuthuthukiswa kakhulu.

2.I-solubility ye-VC ku-austenite iphakeme kunaleyo e-ferrite. Ngokuncipha kwezinga lokushisa, i-VC igxuma isuka ku-ferrite, okwenza ingxubevange iqine futhi okusanhlamvu kucwenge, futhi ungqimba oluyinhlanganisela lubonisa ubulukhuni obuphakeme. Insimbi engu-42CrMo ingeyensimbi ephezulu ye-carbon ne-chromium ledeburite ephezulu, enokuqukethwe okuphezulu kwe-carbide, ebalwa cishe ngama-20%, futhi ivamise ukusatshalaliswa ngokungalingani ebhandeni noma kunethiwekhi, ngokuhlukaniswa okukhulu. Kodwa-ke, ukwelashwa okuvamile okushisa kunzima ukushintsha ukuhlukaniswa kwe-carbide, okuthinta kakhulu izakhiwo zemishini yensimbi kanye nempilo yesevisi ye-die. Ukuma nobukhulu be-carbides nakho kunomthelela omkhulu ezindaweni zensimbi. Ikakhulukazi, ama-engeli amakhulu abukhali ama-carbide anomphumela omuhle wokuhlukanisa ku-matrix yensimbi futhi ngokuvamile abe umthombo wokuphuka kokukhathala. Ngakho-ke, kuyadingeka ukuguqula ukubunjwa kwensimbi eluhlaza egoqwe, ukuchoboza ngokuphelele ama-eutectic carbides ukuze awenze abe mahle futhi asatshalaliswe ngokulinganayo, futhi isakhiwo se-fiber sisatshalaliswa endaweni yomgodi noma engaqondile, Ukuze kuthuthukiswe izakhiwo zensimbi eziphambanayo. .

Ngesikhathi sokuqalwa, i-billet izocasulwa futhi idonswe ngezindlela ezahlukene izikhathi eziningi, futhi ifakwe "indlela emibili elula neyodwa esindayo", okungukuthi, i-billet izoshaywa kancane ekuqaleni kokukhwabanisa ukuvimbela ukuphuka. Ingashaywa kakhulu ekushiseni okuphakathi kuka-980 ~ 1020 ℃ ukuze kuqinisekiswe ukuchotshozwa kwama-carbides. Insimbi ye-42CrMo ayikhiwanga, futhi kwamukelwa isixazululo esiqinile sokwelashwa okucwengisiswe kabili, okungukuthi, ukushisa kuqala kwesibili cishe ku-500 ℃ no-800 ℃ kanye nokwelashwa kwesisombululo esiqinile ku-1100 ~ 1150 ℃, Ukucisha ngamafutha ashisayo noma ukucisha i-isothermal, ukushisa okuphezulu kokushisa ku-750 ℃, ukushisa ku-960 ℃ ngemva komshini kanye nokwelashwa kokushisa kokugcina ngemva kokupholisa uwoyela kungaphinda kucwenge ama-carbides, imiphetho eyindilinga namakhona futhi kucwengisise okusanhlamvu.


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