Shata Machinery yog ib tug ntseeg thoob ntiaj teb tsum ntawm hwm 4140 forgings.
4140 Khoom Taw Qhia
4140, tseem hu ua AISI 4140 lossis UNS G41400, yog lub siab - lub zog qis- alloy steel, nws belongs rau nruab nrab -carbon chromium- molybdenum alloy steels.
4140 yog sib npaug rau cov ntaub ntawv xws li 42CrMo4 / 1.7225 (Europe / DIN lossis EN), SCM440 (Nyiv), 42CrMo (Tuam Tshoj), thiab EN19 (UK).
4140 muaj qhov sib npaug ntawm cov khoom siv kho tshuab.
4140 Tshuaj muaj pes tsawg leeg
|
Element |
C |
Mn |
P |
S |
Si |
Cr |
Mo |
|
Cov ntsiab lus /% |
0.38~0.43 |
0.75~1.00 |
Tsawg dua lossis sib npaug li 0.035 |
Tsawg dua lossis sib npaug li 0.040 |
0.15~0.30 |
0.80~1.10 |
0.15~0.25 |
4140 Mechanical Properties
|
Khoom siv |
Tensile zog / MPa |
Yield zog / MPa |
Elongation /% |
Impact / J |
|
TIAB SA 4140 |
Ntau dua lossis sib npaug rau 655 |
Ntau dua lossis sib npaug rau 415 |
Ntau dua lossis sib npaug rau 25.7 |
/ |
|
AISI 4140 QT |
Ntau dua lossis sib npaug rau 1080 |
Ntau dua lossis sib npaug li 930 |
Ntau dua lossis sib npaug li 12 |
Ntau dua lossis sib npaug li 63 |
Yam 4140 Yam Yuav Tsum Tau Ua los ntawm Forging
Cov khoom uas tiv taus huab cua torque, cyclic kev nyuaj siab, thiab cuam tshuam loads, forging nrog 4140 yuav yog ib qho kev xaiv zoo.
AISI 4140 forged Cheebtsam tuaj yeem muab faib ua cov hauv qab no:
- Ncej thiab pins
- Gears
- Txuas pas nrig / caj npab
- Hydraulic thooj voos kheej kheej
- Lub log
Puas yog 4140 Steel Zoo rau Forging?
Yog lawm, AISI 4140 steel muaj zoo forgeability. Nws muaj fluidity zoo nrog forging kub 926℃~ 1205 degree.
Qhov siab tshaj plaws Hardness rau 4140 Yam yog dab tsi?
Qhov siab tshaj plaws hardness rau AISI 4140 tuaj yeem ncav cuag HRC55 ~ HRC60, nws nyob ntawm kev kho cua sov sib txawv:
- Lub xeev Annealed: 16 ~ 22 HRC, haum rau ua ntej - forging thiab ntxhib machining, tab sis tsis yog rau feem ntau ntawm cov khoom tiav
- Lub xeev zoo li qub: 23 ~ 28 HRC, siab precision stability
- Quenched thiab tempered (QT) xeev: 28 ~ 45HRC, feem ntau siv hardness ntau yam, vim hais tias kev ua tau zoo yog qhov zoo tshaj plaws ntawm qhov no.
- Tempered: tuaj yeem ua tau siab tshaj plaws rau 55 ~ 59HRC, nkig heev, tawg siab tshaj plaws los yog tawg, tsis pom zoo. Yog tias muaj zog hardness yog cov khoom siv kom tau txais kev hnav tsis kam, siv cov khoom siv tawv tawv los yog lwm yam hlau xws li H13 cov cuab yeej steel, 20CrMnTi, 55NiCrMoV7, Mn13, thiab lwm yam.
- Surface Hardened (Induction / Nitriding): 55 ~ 65 HRC, txheej txheej hardened heev, nrog cov tub ntxhais toughness.
Quench Steel nrog dej lossis roj, Dab tsi yuav tsum siv?
Cov dej txias muaj qhov nrawm dua li cov roj txias, tuaj yeem ua kom tawv tawv dua, tab sis nws muaj kev pheej hmoo siab dua ntawm kev tawg thiab deformation.
Rau me me 4140 forgings nrog cov qauv yooj yim thiab qhov yuav tsum tau muaj zog dua, siv dej txias.
Rau kev txhim khu kev qha thiab sib npaug, xaiv cov roj quenching yog qhov zoo dua. Nws ua kom cov cua txias zoo thiab tuaj yeem txo cov kab nrib pleb, deformation thiab kev ntxhov siab sab hauv, thiab ua kom cov tub ntxhais zoo toughness.
Roj quenching yog Shata lub ntsiab cua txias txoj kev los xyuas kom meej ib yam nyuaj hardness, tsis muaj kab nrib pleb thiab nruj kam rau ua, txhim khu qhov zoo ntawm peb forgings.
4140 Hlau puas tuaj yeem yog Nitride?
kiag li - 4140 steel teb tshwj xeeb zoo rau nitriding, ua rau nws yog ib qho kev xaiv nrov rau saum npoo -hardened forgings.
Nitriding yog qhov qis- qhov kub thiab txias qhov chaw kho cua sov uas infuses nitrogen rau hauv cov hlau saum npoo, ua ib qho nyuaj, hnav- cov txheej tiv thaiv nitride yam tsis muaj qhov cuam tshuam.
Cov txiaj ntsig tseem ceeb ntawm Nitriding rau 4140 Forgings
- Nitriding coj cov khoom zoo tshaj plaws hnav thiab ua kom puas nrog cov tawv tawv txog li 60 ~ 65HRC
- Zoo heev core toughness
- Txhim kho corrosion kuj
- Tsawg distortion vim qis -kub kev kho cua sov, zoo tagnrho rau tiav precision forgings
- Lub neej ntev kev pab cuam rau siab - cov khoom sib txhuam (cov iav, ncej, spindles)
Cim npe nrov: 4140 forgings, Tuam Tshoj 4140 forgings manufacturers, lwm tus neeg, Hoobkas
