Dab tsi yog cov yam ntxwv ntawm 136 RE steel rail?
Cov khoom siv tshuaj lom neeg ntawm136 RE steel railyog tswj hwm los ntawm AREMA (American Railway Engineering thiab Maintenance- ntawm- Txoj Kev Koom Tes) cov lus qhia kom paub meej qhov sib npaug ntawm qhov tawv, tawv, thiab weldability. Rau 136re rail profile kom tiv taus qhov hnyav hnyav ntawm Class I railroads, cov hlau yuav tsum muaj cov feem pua ntawm Carbon, Manganese, thiab Silicon. Cov ntsiab lus ntawm cov pa roj carbon ntau yog qhov tseem ceeb uas muab qhov tsim nyog hnav tsis kam, thaum lwm cov ntsiab lus alloying raug tswj los tiv thaiv brittleness thiab sab hauv tsis xws luag.
- Cov pa roj carbon-Manganese Balance: AREMA 136RE txoj kev tsheb ciav hlau feem ntau siv qhov siab - carbon steel chemistry (feem ntau 0.72% - 0.82% Carbon), uas tso cai rau cov tsheb ciav hlau tswj nws cov duab hauv qab ntau lab ntawm tag nrho cov siab.
- Alloying Elements: Cov ntsiab lus zoo li Silicon thiab Manganese tau ntxiv los txhim kho cov txheej txheem sab hauv ntawm 136re rail seem thaum lub sijhawm ua kom txias, ua kom cov hlau "huv" thiab tsis muaj kev phom sij.
- Purity Standards: Cov kev txwv nruj yog muab tso rau ntawm Phosphorus thiab Sulfur ( Tsawg dua lossis sib npaug li 0.035% thiab Tsawg dua lossis sib npaug li 0.040% raws li ) kom ntseeg tau tias 136RE hnyav tsheb ciav hlau tsis ua nkig, tshwj xeeb tshaj yog nyob rau hauv huab cua txias.
Chemical Composition ntawm AREMA Rail Steel:
| UAS 2019 | Qib Qib | C | Si | Mn | P | S | Ni | Cr | V |
|---|---|---|---|---|---|---|---|---|---|
| Carbon Steel | 0.74–0.86 | 0.10–0.60 | 0.75–1.25 | Tsawg dua lossis sib npaug li 0.020 | Tsawg dua lossis sib npaug li 0.020 | Tsawg dua lossis sib npaug li 0.25 | Tsawg dua los yog sib npaug li 0.30 | Tsawg dua lossis sib npaug li 0.010 | |
| Tsawg Alloy Steel | Standard zog (SS) | 0.72–0.82 | 0.10–0.50 | 0.80–1.10 | Tsawg dua lossis sib npaug li 0.020 | Tsawg dua lossis sib npaug li 0.020 | Tsawg dua los yog sib npaug li 0.15 | 0.25–0.40 | Tsawg dua lossis sib npaug li 0.010 |
| Lub zog nruab nrab (IS) | 0.72–0.82 | 0.10–1.00 | 0.70–1.25 | Tsawg dua lossis sib npaug li 0.020 | Tsawg dua lossis sib npaug li 0.020 | Tsawg dua los yog sib npaug li 0.15 | 0.40–0.70 | Tsawg dua lossis sib npaug li 0.010 | |
| Siab zog / Lub taub hau Hardened (HH) | 0.72–0.82 | 0.10–1.00 | 0.70–1.25 | Tsawg dua lossis sib npaug li 0.020 | Tsawg dua lossis sib npaug li 0.020 | Tsawg dua los yog sib npaug li 0.15 | 0.40–0.70 | Tsawg dua lossis sib npaug li 0.010 |
Mechanical Properties ntawm AREMA Rail Steel:
| AREMA 2019 | Qib Qib | Yield zog N / hli 2 |
Lub zog muaj zog N / hli 2 |
Elongation % |
Brinell Hardness HBW |
|---|---|---|---|---|---|
| Carbon Steel | Standard zog (SS) | 511 MIN | 9 83 mn | 10 MIN | 310 MIN |
| Lub zog nruab nrab (IS) | 724 MIN | 1069 MIN | 10 MIN | 350 MIN | |
| Siab zog / Lub taub hau Hardened (HH) | 8 28 min | 1179 MIN | 10 MIN | 370 MIN | |
| Tsawg Alloy Steel | Standard zog (SS) | 511 MIN | 9 83 mn | 10 MIN | 310 MIN |
| Lub zog nruab nrab (IS) | 552 MIN | 1014 MIN | 8 MIN | 325 MIN | |
| Siab zog / Lub taub hau Hardened (HH) | 8 28 min | 1179 MIN | 10 MIN | 370 MIN |
Yam khoom twg yog qhov ruaj khov tshaj plaws rau Arema 136re rail?
Rau AREMA 136RE rail, cov khoom siv ruaj khov tshaj plaws muaj yog High Strength / Head Hardened (HH) steel.While standard 136RE rail twb tsim los rau hnyav - lub luag haujlwm siv, "HH" qibyog tsim tshwj xeeb tsim kom muaj sia nyob ntawm cov neeg kho tshuab siab heev ntawm hnyav- thauj khoom thauj thiab siab - tsheb thauj mus los loj.
1. Hardness Levels (The Primary Durability Metric)
Durability nyob rau hauv railway steel yog ntsuas loj los ntawm nwsBrinell Hardness (HBW). Lub taub hau tawv tawv tiv thaiv "dov hu rau qaug zog" (plhaub thiab tawg) thiab abrasive hnav los ntawm lub log.
- Standard zog (SS):Ntau dua lossis sib npaug rau 310 HBW
- Lub zog nruab nrab (IS):Ntau dua lossis sib npaug rau 325 HBW
- Lub taub hau Hardened (HH):Ntau dua lossis sib npaug rau 370 HBW
Qib HH muab qhov nyuaj ua haujlwm nyuaj, txuas ntxiv lub sijhawm ntawm kev sib tsoo thiab ua kom tag nrho cov tonnage cov tsheb ciav hlau tuaj yeem nqa ua ntej hloov.
2. Superior Mechanical Properties
Lub Taub Hau Hardened 136RE kev tsheb nqaj hlau tau dhau los ua cov cua sov tshwj xeeb- cov txheej txheem kho uas tsim kom muaj pearlitic microstructure zoo. Qhov no ua rau lub zog siab tshaj plaws raws li AREMA tus qauv:
- Yield zog: Ntau dua lossis sib npaug rau 828 N / mm2 (kwv yees . 120,000 psi)
- Tensile zog: Ntau dua lossis sib npaug rau 1179 N / mm2 (kwv yees . 171,000 psi)
- Elongation: Ntau dua los yog sib npaug rau 10% (tseem toughness yog li txoj kev tsheb ciav hlau tsis ua nkig)
Dab tsi yog tus qauv qhov ntev ntawm 136 RE steel rail?
CovAREMA 136RE rail(feem ntau hu uaTSI TR68) yog ib qho ntawm feem ntau siv cov tsheb ciav hlau hnyav hauv North America. Nws qhov ntev yog tsim los ntawm American Railway Engineering thiab Maintenance- ntawm -Txoj Kev Koom Tes (AREMA) kom ntseeg tau tias muaj kev sib raug zoo nrog hnyav -haul infrastructure.
Hauv qab no yog tus qauv136RE rail qhov ntevxav tau rau kev kos duab kos duab thiab kev yuav khoom specifications.
| Profile | Txuj | Dimensions mm | Tshooj S | Mas m | ||||
|---|---|---|---|---|---|---|---|---|
| H | B | C | D | E | cm xo | kg/m | ||
| American txuj | ||||||||
| 136 TSI (TR68) | AREMA | 185,70 | 152,40 | 74,60 | 49,20 | 17,50 | 85,90 | 67,50 |
Cov lus nug nquag
- Cov ntsiab lus carbon ntawm 136RE rail yog dab tsi?
Cov ntsiab lus carbon ntawm 136 RE steel rail feem ntau yog li ntawm 0.72% txog 0.82%. Qhov siab carbon qib no yog qhov muab 136re rail profile nws qhov tshwj xeeb hardness thiab muaj peev xwm tiv taus hnav.
- Puas yog TR68 muaj cov tshuaj zoo ib yam li 136RE?
Yog lawm, TR68 yog lub npe metric rau tib qhov profile. Cov khoom siv tshuaj zoo ib yam rau AREMA 136RE rail, raws li ob qho tib si ua raws tib cov qauv hlau rau hnyav- kev ua haujlwm ntawm lub tsheb.
- Sulfur cuam tshuam li cas rau 136RE rail seem?
Sulfur khaws cia qis dua 0.040% vim tias cov qib sulfur siab tuaj yeem ua rau "kub shortness," ua rau tawg thaum lub sij hawm dov ntawm 136re rail qhov ntev. Tsawg sulfur ua kom huv si, muaj zog 136re rail seem.
- Vim li cas Manganese siv hauv 136RE hnyav tsheb ciav hlau?
Manganese (0.70% -1.10%) yog siv los ua kom muaj zog thiab hnav tsis kam ntawm 136 phaus rail. Nws kuj tseem pab tshem tawm oxygen thiab sulfur thaum lub sij hawm steelmaking txheej txheem.
- 136RE Rail Chemistry puas tuaj yeem hloov kho?
Thaum lub hauv paus AREMA 136RE chemistry yog tus qauv, "Lub taub hau-Hardened" versions yuav suav nrog kev hloov kho me ntsis rau cov ntsiab lus alloying kom nce Brinell hardness ntawm 136re rail profile taub hau.
- Puas yog GNEE RAIL muab cov ntaub ntawv txheeb xyuas tshuaj?
Yog lawm, txhua qhov kev txiav txim ntawm 136 RE steel rail suav nrog Mill Test Certificate (MTC) uas muab tag nrho cov tshuaj tiv thaiv tshav kub, lees paub tias 136re rail hnyav thiab cov khoom ua raws li qhov project specifications.
GNEE RAILmuab136 RE RAWSmanufactured nruj me ntsis rau tam sim no AREMA specifications, xyuas kom meej tias cov tshuaj muaj pes tsawg leeg thiab lub cev qhov ntev raws li tag nrho cov kev cai rau hnyav-haul infrastructure. Los ntawm kev siv lub tshuab nqus tsev degassing thiab spectral tsom xam, cov khoom sib xws thiab purity tau lees paub thoob plaws txhua pawg. Kev txhawb nqa logistics thiab Mill Test Certificate (MTC) yog muab los xyuas kom meej tias txhua txhua 136 RE steel rail xaj raug xa nrog cov ntaub ntawv pov thawj metallurgical rau kev ua raws li qhov project.
Nyem qhov norau tus nqi tseeb thiab kev kos duab ntawm 136RE Rail
