Dab tsi steel yog siv rau kev tsheb ciav hlau?
Jan 21, 2026
Hlau railyog lub siab - lub zog ntawm cov qauv steel nrog lub taub hau, lub vev xaib, thiab lub hauv paus, tsim los nqa lub log loads, tswj kev sib dhos, thiab hloov lub zog rau cov pw tsaug zog thiab lub hauv paus. Nws yog lub hauv paus load-cov kabmob ntawm txoj kev tsheb ciav hlau thiab kev lag luam khiav, ua nrog cov qhov ntev ntev thiab kev tswj xyuas metallurgical kom ntseeg tau ntev -lub sijhawm ntev. GNEE RAIL muab ntau yam steel rails, nrog rau cov tsheb loj loj rau txoj kev tsheb ciav hlau loj, lub teeb rails rau cov ceg kab, crane ntsia rau kev lag luam, thiab tiaj tus bar rails rau trolleys thiab warehouses, nrog rau kev xaiv ua tiav ntawm cov tsheb ciav hlau fasteners, lub hauv paus daim hlau, thiab kev taw qhia kev teeb tsa kom tau raws li cov kev xav tau thoob ntiaj teb.
Dab tsi steel yog siv rau kev tsheb ciav hlau?
Rails yog tsim los ntawm cov hlau tshwj xeeb tsim los tiv thaiv hnav, qaug zog, thiab deformation nyob rau hauv kev rov ua dua dynamic loading. Common rail steels muaj xws li high-carbon, low- alloy steels xws liU71Mn, U75V, ibnd50 Mn, uas muab lub zog tensile ntawm 880 MPa thiab 1100 MPa thiab rail lub taub hau hardness xws li 240 HB mus txog 300 HB nyob ntawm kev kho cua sov. Lwm cov hlau xws liR260, R350HT,thiab55Qyog siv rau cov qauv thoob ntiaj teb tshwj xeeb thiab siab - cov ntawv thov kev ntxhov siab.
| Qib Steel | Txuj | Hom Rail Hom | Mechanical Properties | Daim ntawv thov |
|---|---|---|---|---|
| ua 71mn | GB/T 8162 | Heavy Rail, QU Crane Rail | Tensile 880-900 MPa, Hardness 250-270 HB | Mainline railways, hnyav industrial cranes |
| U75V | GB/T 8162 | High -Speed Rail | Tensile 950-1000 MPa, Hardness 260-280 HB | High -cov neeg caij tsheb ceev thiab cov kab tsheb thauj mus los |
| 50 Mn | DIN536 | DIN536 Crane Rail | Tensile 1000-1100 MPa, Hardness 270-300 HB | Gantry cranes, steel mills, chaw nres nkoj |
| R260 | TS EN 13674 | Lub Teeb Rail | Tensile 880 MPa, Hardness 240-260 HB | Kev thauj mus los hauv nroog, chaw ua haujlwm |
| R350 HT | TS EN 13674 | Siab -Hnyav Rail | Tensile 1100 MPa, Hardness 300+ HB | Heavy- thauj khoom thauj thiab kev lag luam |
| 55Q | GB/T 8162 | Lub Teeb & Nruab Nrab Rail | Tensile 900 MPa, Hardness 240-260 HB | Regional railways, ceg kab |
| Qib | Standard / cheeb tsam | Kev sib xyaw ua ke (wt%) |
| R260 | TS EN 13674-1 (Tebchaws Europe) | C: 0.67–0.80, Mn: 0.90–1.20, Si: Tsawg dua lossis sib npaug rau 0.50 |
| R350 HT | TS EN 13674-1 (Tebchaws Europe) | C: 0.75–0.85, Mn: 0.80–1.20, Cr: 0.20–0.50 |
| Qib 260 | AREMA (North America) | C: ~0.77, Mn: ~1.0–1.2, Si: ~0.2 |
| Qib 350 | AREMA + Mill Specs (USA/Canada) | C: 0.78–0.83, Mn: 0.90–1.20, Cr: 0.2–0.6, + V/Nb (microalloyed) |
| BH Rail (Baitic) | JIS E 1101 (Nyiv), tau txais kev pom zoo hauv EU / Is Nrias teb | C: 0.65–0.80, Mn: 1.0–1.4, Cr/Mo/Ni (yeem, zeb- tshwj xeeb) |
| ua 71mn | GB / T 2585 (Tuam Tshoj) | C: 0.65–0.77, Mn: 1.10–1.40, Si: 0.15–0.35 |
| U75V | GB / T 2585 (Tuam Tshoj) | C: 0.67–0.77, Mn: 0.70–1.00, V: 0.04–0.12 |
Qhov kev xaiv ntawm qib steel yog txiav txim siab los ntawm kev cia siab ntawm lub nras, kev khiav hauj lwm ceev, huab cua, thiab hom khiav.GNEE RAILUa kom txhua txoj hlua hlau ua tau raws li cov qauv thoob ntiaj teb, suav nrog GB, UIC, EN, AREMA, DIN536, thiab JIS, thiab muab cov kev xaiv kho kom haum rau cov neeg siv khoom- cov haujlwm tshwj xeeb.
| Txuj | Sepc. | Khoom Qib Qib |
| UIC860 | UAS 54 | 700,900A,900B |
| UAS 60 | ||
| EN13674.1 | 5.00E+02 | R200, R350HT, R260Mn, R35LHT, R320Cr, R370CrHT |
| 5.40E+02 | ||
| 6.00E+02 | ||
| 6.00E+03 | ||
| IB 11-1985 | BS80A | 700,900A,900B |
| BS 90 A | ||
| BS100A | ||
| AREMA | 115 RA | SS, HH, LA, IH |
| 136 ROJ | ||
| UAS 60 | ua 71mn | |
| TIAB SA 85 | ua 71mn | |
| GB 2585-2007 | 50kg / m | ua 71mn |
| 60kg / m | U75V | |
| 75kg / m | ||
| TB/T2344-2012 | 50kg / m | U71Mn, U75V, U77MnCr |
| 60kg / m | ua 78crv | |
| 75kg / m | ||
| GB 11264-1989 | 8 kg/m | Q235 |
| 12kg / m | Q235 | |
| 15kg / m | 55Q, Q235 | |
| 18kg / m | 55Q, Q235 | |
| 22kg / m | 55Q, Q235 | |
| 24kg / m | 55Q, Q235 | |
| 30kg / m | 55Q, Q235 | |
| 38kg / m | 50mn, ua 71 | |
| 43kg / m | 50mn, ua 71 | |
| GB Crane Rail | qw 70 | ua 71mn |
| qw 80 | ua 71mn | |
| QU 100 | ua 71mn | |
| qw 120 | ua 71mn |
Vim li cas Kev Xaiv Hlau Tseem Ceeb rau Rails?
Lub durability, kev nyab xeeb, thiab kev ua haujlwm ntawm lub tsheb ciav hlau yog nyob ntawm kev xaiv steel. High-lub zog alloy steels ua kom muaj zog tiv taus hnav, dov kev qaug zog, thiab lub taub hau deformation, uas yog qhov tseem ceeb rau ob qho tib si tsheb ciav hlau thiab kev lag luam crane.
Rails los ntawm GNEE RAIL yog tsim nyob rau hauv nruj metallurgical tswj kom muab cov khoom sib xws raws li kev tsheb ciav hlau ntev, txo kev txij nkawm thiab kev pheej hmoo ua haujlwm. Kev kho cua sov thiab cov khoom sib xyaw ua ke tau ua kom zoo kom haum rau ntau qhov chaw ib puag ncig, xws li qhov kub thiab txias, huab cua txias, lossis siab - cov av noo ntawm ntug dej hiav txwv.
Txij xyoo 2008,GNEE RAILtau muab steel rails ntawm cov qib sib txawv rau ntau tshaj 18 xyoo, steel rails los ntawm GNEE yog heev recommened nyob rau hauv Tuam Tshoj thiab txawv teb chaws.Wtih txiav ntug khoom, GNEE ua tau zoo steel rails uas tau raws li cov kev cai ntawm feem ntau lub teb chaws. Standard rail, lub taub hau hardened rail, hnyav rail, lub teeb rail, crane rail thiab lwm yam yog tag nrho cov muaj nyob ntawm no, raws li ib tug ntawm cov Tuam Tshoj lub ntsiab rail tsum, GNEE RAIL tau ua hauj lwm rau muab kev lag luam ntsuab railway khoom thoob plaws lub ntiaj teb no.
