50crmo4 hlau
Cov Khoom Piav Qhia Cov Yam Tseem Ceeb cuam tshuam rau lub Toughness ntawm Steel Lub toughness ntawm steel yog ib qho tseem ceeb cov cuab yeej uas txiav txim siab nws muaj peev xwm tiv thaiv puas thiab nqus zog. Ob peb yam cuam tshuam lub toughness ntawm steel. Ib qho tseem ceeb tshaj plaws yog cov tshuaj muaj pes tsawg leeg. Cov ntsiab lus carbon ...
Hauj lwm lawm
Khoom Description
| Yam ntxwv | Paub meej |
|---|---|
| Chemical Composition (%) | - Cov pa roj carbon (C): 0 46 - 0.54. - Silicon (Si): Tsawg dua lossis sib npaug rau 0.4. - Manganese (Mn): 0 5 - 0.8. - Phosphorus (P): Tsawg dua lossis sib npaug rau 0.025. - Sulfur (S): Tsawg dua lossis sib npaug rau 0.035. - Chromium (Cr): 0 9 - 1.2. - Molybdenum (Mo): 0 15 - 0.3. |
| Mechanical Properties (Nyob ntawm qhov loj me) | - Rau steel nrog txoj kab uas hla (d) Tsawg dua lossis sib npaug li 16 hli, thickness (t) Tsawg dua lossis sib npaug li 8 hli: - Quenched + tempered tensile zog: 1100 - 1300 MPa. - Tawm taw tes: Ntau dua lossis sib npaug rau 900 MPa. - Elongation: Ntau dua lossis sib npaug li 9%. - Txo thaj tsam: Ntau dua lossis sib npaug li 40%. - Hardness: Ntau dua lossis sib npaug rau HRC35. - Lub zog cuam tshuam: Ntau dua lossis sib npaug rau 58 J. - Rau 16mm＜d Tsawg dua lossis sib npaug li 40mm, 8mm＜t Tsawg dua lossis sib npaug li 20mm: - Quenched + tempered tensile zog: 1000 - 1200 MPa. - Tawm taw tes: Ntau dua lossis sib npaug rau 780 MPa. - Elongation: Ntau dua lossis sib npaug li 10%. - Txo thaj tsam: Ntau dua lossis sib npaug li 45%. - Hardness: Ntau dua lossis sib npaug rau HRC30. - Lub zog cuam tshuam: Ntau dua lossis sib npaug rau 58 J. - Rau 40mm＜d Tsawg dua lossis sib npaug li 100mm, 20mm＜t Tsawg dua lossis sib npaug li 60mm: - Quenched + tempered tensile zog: 900 - 1100 MPa. - Yield point: Ntau dua lossis sib npaug rau 700 MPa. - Elongation: Ntau dua lossis sib npaug li 12%. - Txo thaj tsam: Ntau dua lossis sib npaug li 50%. - Hardness: Ntau dua lossis sib npaug rau HRC30. - Lub zog cuam tshuam: Ntau dua lossis sib npaug rau 58 J. - Rau 100mm＜d Tsawg dua lossis sib npaug rau 160mm, 60mm＜t Tsawg dua lossis sib npaug li 100mm: - Quenched + tempered tensile zog: 850 - 1000 MPa. - Tawm taw tes: Ntau dua lossis sib npaug rau 650 MPa. - Elongation: Ntau dua lossis sib npaug li 13%. - Txo thaj tsam: Ntau dua lossis sib npaug li 50%. - Hardness: Ntau dua lossis sib npaug rau HRC30. - Lub zog cuam tshuam: Ntau dua lossis sib npaug rau 58 J. - Rau 160mm＜d Tsawg dua lossis sib npaug 250mm, 100mm＜t Tsawg dua lossis sib npaug rau 160mm: - Quenched + tempered tensile zog: 800 - 950 MPa. - Yield point: Ntau dua lossis sib npaug rau 550 MPa. - Elongation: Ntau dua lossis sib npaug li 13%. - Txo thaj tsam: Ntau dua lossis sib npaug li 50%. - Hardness: Ntau dua lossis sib npaug rau HRC30. - Lub zog cuam tshuam: Ntau dua lossis sib npaug rau 58 J. |
| Quenching | - Quenching Medium: Roj los yog dej. - Quenching Kub: [Specified temperature range]. |
| Daim ntawv thov | - Siv nyob rau hauv kev tsim cov yas pwm loj thiab nruab nrab uas xav tau qee lub zog thiab tawv, xws li cov iav loj rau cov tsheb loj, cov iav kis tau tus mob rau superchargers, lub siab lub nkoj lub zog, lub qag nram qab, txuas cov pas nrig hauv cov khoom siv siab heev, thiab lub caij nplooj ntoos hlav clips. - Tsis tas li ntawd tsim nyog rau kev tsim cov cuab yeej xws li laum yeeb nkab pob qij txha thiab cov cuab yeej nuv ntses rau cov roj qhov dej hauv qab 2000m thiab pwm rau cov tshuab khoov. |
Cov yam ntxwv cuam tshuam rau lub Toughness ntawm Steel Lub toughness ntawm steel yog ib qho tseem ceeb cov cuab yeej uas txiav txim siab nws muaj peev xwm tiv thaiv puas thiab nqus zog. Ob peb yam cuam tshuam lub toughness ntawm steel. Ib qho tseem ceeb tshaj plaws yog cov tshuaj muaj pes tsawg leeg. Cov ntsiab lus carbon plays lub luag haujlwm tseem ceeb. Cov ntsiab lus ntawm cov pa roj carbon ntau dua feem ntau nce hardness ntawm steel tab sis feem ntau txo nws cov toughness. Raws li cov pa roj carbon ua rau cov hlau hnyav dua, nws ua rau nkig. Piv txwv li, high-carbon steels feem ntau yog siv los txiav cov cuab yeej vim lawv cov hardness tab sis tsis tshua haum rau cov ntawv thov uas yuav tsum tau muaj zog. Alloying ntsiab kuj muaj qhov cuam tshuam loj heev. Piv txwv li, Nickel tuaj yeem txhim kho toughness los ntawm kev txhim kho ductility. Nws pab cov hlau kom deform tsis tawg yooj yim. Chromium tuaj yeem ua kom tawv tawv thiab hnav tsis kam. Txawm li cas los xij, nws cov nyhuv ntawm toughness nyob ntawm nws cov concentration. Nyob rau hauv me me npaum li cas, nws muaj peev xwm ua rau ib tug sib npaug ntawm hardness thiab toughness. Ntawm qhov tod tes, qib siab ntawm sulfur thiab phosphorus feem ntau ua rau muaj kev nyuaj siab. Lawv tuaj yeem tsim cov nkig hauv cov hlau, ua rau nws yooj yim dua rau kev tawg. Lub microstructure ntawm hlau yog lwm qhov tseem ceeb. Cov qoob loo loj muaj qhov cuam tshuam loj. Fine-grained steels yuav muaj zog zoo dua li cov coarse-grained. Cov nplej me me tuaj yeem tiv thaiv kev tawg tawm. Thaum ib qho tawg ntsib cov nplej zoo, nws yuav tsum tau ua txoj hauv kev tortuous, uas yuav tsum tau muaj zog ntau dua thiab ua rau kom muaj zog. Cov theem muaj pes tsawg leeg kuj tseem ceeb. Lub xub ntiag ntawm cov theem sib txawv xws li ferrite, pearlite, martensite, thiab bainite tuaj yeem cuam tshuam qhov tawv. Martensite nyuaj heev tab sis kuj nkig. Ntawm qhov tod tes, ferrite yog softer tab sis tuaj yeem muaj qhov zoo dua ductility thiab toughness. Qhov kev faib ua feem thiab kev faib tawm ntawm cov theem no tuaj yeem tswj tau los ntawm cov txheej txheem kho cua sov. Kev kho cua sov yog cov txheej txheem tseem ceeb uas tuaj yeem cuam tshuam rau qhov toughness ntawm cov hlau. Annealing, quenching, thiab tempering tuaj yeem hloov pauv microstructure thiab cov khoom ntawm cov hlau. Quenching tuaj yeem ua kom tawv tawv tab sis tuaj yeem txo cov tawv nqaij yog tias tsis ua raws li kev kub ntxhov. Tempering yuav pab txo qis brittleness thiab txhim kho toughness los ntawm kev txo cov kev ntxhov siab sab hauv. Hauv kev xaus, lub toughness ntawm steel yog cuam tshuam los ntawm ntau yam xws li tshuaj muaj pes tsawg leeg, microstructure, thiab kev kho cua sov. Kev nkag siab txog cov xwm txheej no thiab lawv cov kev sib cuam tshuam yog qhov tseem ceeb rau kev xaiv cov hlau zoo rau cov ntawv thov tshwj xeeb thiab ua kom zoo dua nws cov khoom kom ua tiav qhov xav tau sib npaug ntawm hardness thiab toughness.
Cim npe nrov: 50crmo4 steel, Tuam Tshoj 50crmo4 steel lwm tus neeg, hoobkas
