A hlau railyog lub hauv paus ntsiab lus uas nws geometry, hardness, thiab metallurgical zog ua kom muaj kev nyab xeeb thiab ua haujlwm ntawm lub tsheb nyob rau hauv ntau yam kev thauj mus los thiab ib puag ncig. Nws tuav lub ntsuas ntsuas thiab txo qhov deformation dhau sijhawm.GNEE RAILmuab steel rails nyob rau hauv tag nrho cov txheej txheem thoob ntiaj teb, suav nrog lub teeb / hnyav GB rails, UIC50–UIC60, DIN536 A55–A120, QU70–QU120, JIS 15KG–CR100, AS{9}}–89 kg, BS11:1985, thiab 25lbs xws li – ASCE cov kev pabcuam vuam, ua ntej- kev sib dhos, thiab kev txhawb nqa kev teeb tsa.
| 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 |
Dab tsi ntawm cov hlau yog siv rau kev tsheb ciav hlau?
Rail lem siv siab -carbon, nruab nrab-manganese steels, feem ntau raug xaiv raws li Qib 1084 los yog zoo sib xws, muab siab hardness thiab hnav tsis kam rau hnyav loads, nrog rau cov qib tshwj xeeb (xws li R260, R350HT) txhais los ntawm cov qauv thoob ntiaj teb (EN 13674-1) rau kev ua tau zoo, xws li cov ntsiab lus ntawm cov khoom siv microloy, xws li {7} chromium. txhawm rau txhim kho lub zog thiab qaug zog tiv thaiv, tshwj xeeb tshaj yog rau cov kab hnyav.
Cov yam ntxwv tseem ceeb:
- Cov ntsiab lus siab Carbon: Nyob ib ncig ntawm 0.6% mus rau 0.8% carbon rau hardness.
- Manganese siab: Txog 0.8% mus rau 1.3% manganese rau kev txhim kho toughness thiab tshav kub-treatability.
- Hnav Resistance: Qhov tseem ceeb rau kev tiv thaiv kev sib txhuam thiab lub log hnyav.
- Fracture Resistance: Toughness los tiv thaiv cracking nyob rau hauv kev ntxhov siab.
| Q235B | Cov cuab yeej cuab tam | Tshuaj muaj pes tsawg leeg (%) | |||||||||
| Yield zog | Tensile zog | Elongation | Hardness | C | Si | Mn | S | P | |||
| MPa | kg/m² | MPa | kg/m² | min | HB | Tsawg dua los yog sib npaug | Tsawg dua los yog sib npaug | Tsawg dua los yog sib npaug | |||
| Ntau dua lossis sib npaug | Ntau dua lossis sib npaug | ||||||||||
| 235 | 24 | 375-460 | 38-47 | 26% | 0.12-0.22 | 0.35 | 0.30-0.70 | 0.045 | 0.045 | ||
| 55Q | Cov cuab yeej cuab tam | Tshuaj muaj pes tsawg leeg (%) | |||||||||
| Yield zog | Tensile zog | Elongation | Hardness | C | Si | Mn | S | P | |||
| MPa | kg/m² | MPa | kg/m² | min | HBW | Tsawg dua los yog sib npaug | Tsawg dua los yog sib npaug | ||||
| Ntau dua lossis sib npaug | Ntau dua lossis sib npaug | Ntau dua lossis sib npaug | Ntau dua lossis sib npaug | Ntau dua lossis sib npaug | |||||||
| 685 | 69 | 197 | 0.50-0.60 | 0.15-0.35 | 0.60-0.90 | 0.04 | 0.04 | ||||
Cov Qib & Cov Qauv:
- 1084 Steel (American Standard): Ib qho piv txwv nruab nrab - carbon steel.
- R260 / R350HT (European Standard): Qib qhia lub zog tensile (260 MPa / 350 MPa) nrog cov kev kho cua sov tshwj xeeb (HT=Hardened & Tempered) rau kev ua tau zoo dua, sau ntawv {Txuas: Kev Tshawb Fawb Ntiaj Teb Kev Lag Luam.
- Micro-alloyed Steels: Vanadium (V) los yog Niobium (Nb) ntxiv rau lub zog zoo, siv nyob rau hauv siab - cov cheeb tsam kev ntxhov siab.
| 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 |
Hom kev tsheb ciav hlau yog dab tsi?
Cov hom kev tsheb ciav hlau tseem ceeb yogOb - taub hau, Bull- taub hau, thiabPav ca -footed (Vignole), hloov zuj zus los ntawm cov qauv tsim thaum ntxov rau kev siv symmetrical (ob - taub hau), mus rau cov duab muaj zog rau kev siv tshwj xeeb (bull- taub hau, xav tau lub rooj zaum), mus rau niaj hnub, tus nqi- zoo tiaj tus-ko taw tsim ncaj qha txuas rau cov neeg pw tsaug zog, tam sim no feem ntau siv rau cov kab tseem ceeb, nrog rau cov kev sib tw tshwj xeeb hauv kev siv cov tsheb ciav hlau.
Yam Tseem Ceeb ntawm Rail Tshooj
- Ob chav - taub hau Rail:Symmetrical sab saum toj thiab hauv qab, tsim los flipped rau lub neej ntev, tab sis feem ntau siv tsis tau vim muaj teeb meem txij nkawm.
- Bull-headed Rail:Nta lub taub hau tuab rau lub zog, feem ntau hauv cov txheej txheem qub thiab cov ntsiab lus / hla, xav tau cov rooj zaum tshwj xeeb thiab cov yuam sij rau fastening.
- Pav ca -footed (Vignole) Rail:Hom niaj hnub no feem ntau, nrog lub hauv paus tiaj tus rau kev txuas ncaj qha rau cov neeg pw tsaug zog, ua rau kev teeb tsa yooj yim dua thiab txuag nyiaj ntau dua.
Raws li tus kws tshaj lij rail fastener tsum,GNEE RAILtuaj yeem muab cov qauv hlau sib txawv xws li GB, Asmeskas, BS, UIC, DIN, JIS, Australian thiab South Africa uas siv hauv kev tsheb ciav hlau, cranes thiab thee mining.