Khoom npe
Railway Rebar (Railway Reinforcing steel bar / khiav qauv qauv ntxiv cov hlau)
1. Cov ntsiab lus
Railway Rebaryog qhov siab -} lub zog, qaug zog-}} ionestion steel reassensive engineered rauRailway Infrastructure, suav nrogTaug qab cov pob zeb, cov neeg pw tsaug zog, kev sib txawv, cov choj, chaw nres tsheb, thiab lwm yam kev sib caisCov. Nws muab qhov tseem ceeb tshaj plaws lub zog thiab kev tswj kom tawg rau cov khoom siv qhob ntsiab lusDynamic kev qhia laub, kev co, thiab kev ntxhov siab ib puag ncig.
Cov tshuab railway niaj hnub - Tshwj xeeb tshaj yogHigh - Ceev Rail thiab Cov Khoom Taw Qhia Hnyav{{0 {}}}} Xav tau kev txhawb ntxiv uas ua keKev qaug zog tsis kam, ductility, thiab kev tiv thaiv corrosion, kom tau ntev - lub sij hawm ruaj khov, kev ua haujlwm du, thiab txo cov nqi txij nkawm nyob rau ntau xyoo lawm ntawm kev pabcuam.
2. Cov qauv thiab cov qhab nia sib npaug
| Lub hom phiaj | Xws li qib | Yield zog (mpa) | Daim ntawv thov tau |
|---|---|---|---|
| Tuam Tshoj (GB / T 1499.2) | HRB500E / hrbf500e / hrb600 | 500–600 | Qhov Cuab Lub Zog rau Rail Track Slabs thiab Tunnels |
| Tebchaws Asmeskas (ASTM A706 / A615) | Qib 60 / Qib 75 | 420–520 | Rail choj, chaw nres tsheb, thiab cov khoom precast |
| Teb chaws Europe (EN 10080) | B500C / B600B | 500–600 | Taug qab Foundation thiab Choj Txiav Txim Siab |
| Is Nrias teb (yog 1786) | Fe500D / FE550D / FE600 | 500–600 | Cov tsheb nqaj hlau ua haujlwm thiab cov neeg tsaug zog |
| Nyiv (JIS G3112) | SD490 / sd590 | 490–590 | Qhov chaw tsheb ciav hlau tsheb, chaw nres tsheb, thiab slabs |
Kev tsheb nqaj hlau - qeb ntxiv cov kauj ruam yuav tsum ua rawsE - qib (siab - ductility)thiabTsawg - recbon weldableYuav tsum muaj los xyuas kom muaj kev nyab xeeb thiab ua tau zoo raws li Cyclic dynamic dynamic dynamic.
3. Cov Khoom Siv Kho Tshuab
| Ntiag tug | Cov Khoom Nquag Yog | Kev piav txog |
|---|---|---|
| Khoom Hom | Kub - rolled lossis thermomechanically kho (TMT) hlau | MicroalloLoyed rau kev nce siab thiab qaug zog lub neej |
| Yield zog (FY) | 500-650 MPa | Txhawb cov tawv nqaij hnyav thiab cov kev tsheb nqaj hlau |
| Qhov kawg tensile lub zog (FU) | 600-800 MPA | High tensile muaj peev xwm rau lub neej pabcuam ntev |
| Elongation (Δ5) | Ntau dua los yog sib npaug rau 14-18% | Muab kev sib tw rau kev co thiab kev nqus dej khov |
| Elastic Modulus (e) | ≈ 200 GPA | Ua kom nruj me ntsis thiab seem ruaj khov |
| Qeeb zog tsis kam | Zoo tshaj | Tsim rau ntau lab ntawm cyclic load mus |
| Bond lub zog | Zoo tshaj | Deformed Ribs Xyuas kom muaj zog ua ke qhob nplaum |
| Weldability (CE) | Tsawg dua los yog sib npaug rau 0.45 | Haum rau welded saib qhov cuab lub zog lub zog |
4. Kev Tsim Kho Cov Txheej Txheem
Railway rebar yog tsim siv cov hau kev hlau me me kom ua tiav lub zog sib xws, nkees tsis kam, thiab tawv:
Kub Rolling nrog tswj kev txias:Ua tiav cov khoom siv hluav taws xob microstration microstrabture thiab muaj kev ruaj khov ruaj khov.
Kev kho thermomechanical (TMT):Txhim kho cov zog saum toj thiab cov qauv ua siab loj.
Microalloying (V, NB, ti):Nce lub zog thaum ua kom muaj kev tswj hwm weldability.
Cov Txheej Txheem Txheej Txheem:Kub - dip galvanizing, epoxy txheej, lossis zinc - aluminium alloy rau kev tiv thaiv corrosion.
Weldable composition:Ua kom haum rau kev sib tw ua ntej kev tsheb ciav hlau ua ntej thiab tawb.
5. Qhov loj me thiab cov qauv hnyav
| Inch (hli) | Nyhav (kg / m) | Cov Kev Siv Cov Ntawv Siv |
|---|---|---|
| 8 | 0.395 | Lub teeb qhov cuab lub zog, cov hlau rail |
| 10 | 0.617 | Taug qab Slabs thiab Qhov Cov Linnel |
| 12 | 0.888 | QHOB ZAUM THIAB PLATORNKS |
| 16 | 1.578 | Subgrade foundations thiab piers |
| 20 | 2.466 | Rail choj thiab abutments |
| 25 | 3.854 | Hnyav - Damesyming Rev System |
| 32 | 6.313 | Cov Qauv Qauv Loj Cov Qauv Tsheb Loj |
Ntev:6 m / 9 m / 12 m txheem; Txiav - rau - ntev muaj.
Nto:Ribbed / deformed rau kev ua kom zoo nkauj.
Daim Ntawv:Cov kab ncaj ncaj lossis cov hlua (tsawg dua lossis sib npaug rau 12 hli) rau mesh lossis kev tsim khoom.
6. Cov yam ntxwv tseem ceeb thiab cov txiaj ntsig
✅ Siab zog thiab qaug zog tsis kam:Tsim los ua kom muaj nyiaj ntau lab ntawm kev ua si thauj mus los.
✅ Superior bonding:Ribbed saum yeej paub qhov siab tshaj plaws rau kev ua vaj tse.
✅ Ductility zoo heev:Withstands kev co thiab kev cuam tshuam zoo tsis muaj kev ua tsis tiav.
✅ Corrosion Kuj:Txheej thiab alloyed hom kev tiv thaiv noo noo thiab tshuaj lom neeg.
✅ Siab Weldability:Tsawg cov pa roj carbon sib npaug pub ua kom muaj txiaj ntsig zoo.
✅ Ruaj Khwv:Minimal deformation thiab siab qhov tseeb yog.
✅ Lub neej ntev kev pab lub neej:Ua rau cov xyoo ntawm kev ua tau zoo hauv kev ua haujlwm ntawm cov tsheb nqaj hlau.
7. Kev thov
Taug qab Slabs:Qhov kev txhawb nqa rau ballastless thiab siab - ceev railwhawj khiav tshuab.
Qhob so Sleepers:Muab lub zog thiab tawg tawm tsam raws li cov qev hnyav.
Ntau thiab hauv av railways:Siv hauv cov ntu thiab cov nplais.
Rail choj thiab cov Viaducts:Qhov kev txhawb zog rau lawj, piers, thiab abutments.
Cov chaw nres tsheb ciav hlau thiab Platforms:Cov txheej txheem kev tsim kho rau cov platform thiab khaws cov qauv.
Khaws phab ntsa thiab cov txheej txheem subrade:Rau txoj kab nqes ua kom ruaj khov thiab av khaws cia.
Lub chaw tsim hluav taws xob hluav taws xob:Siv nyob rau hauv bases rau cov teeb liab mastions thiab cable ducts.
8. Txheej thiab Kev Xaiv Tiv Thaiv
| TXHEEJ YAM | Kev piav txog | Pom zoo siv |
|---|---|---|
| Epoxy Txheej (ASTM A775) | Fusion - kev sib koom tes los tiv thaiv chloride corrosion | Kev sib tw, chaw nres tsheb, kev tsheb nqaj hlau marine |
| Kub - dip Galvanized (Z180-Z275) | Zinc Txheej rau Oxidation Kuj | Ntug dej hiav txwv lossis huab cua huab cua |
| Zinc -} aluminium alloy (Galfan) | Cov ntawv nplaum zoo dua thiab kev tiv thaiv corrosion | Ntev - lub neej ris cov qauv |
| Stainless lossis Duplex Steel | Qhov kawg corrosion tsis kam thiab muaj kev vam meej | Cov choj tseem ceeb thiab siab - ceev cov phiaj xwm |
9. Cov ntaub ntawv ua ke, vuam, thiab tuav
Dabtsi yog khoov:Txias khoov khoov rau ib tus qauv (yam tsawg kawg nkaus 6 × chanch bend radius).
Vuam:Siv qis -} cov qhab nia ntawm cov qib qis (piv txwv li, HRB500E, Astm A706). Xyuas cov txheej txheem vuam ua ntej kev tsim cov kab.
Tej:Cov kws kho tshuab txiab lossis saws; Zam kev txiav tawm ntawm cov kab zauv coated.
Cia:Kom qhuav thiab npog; Tiv thaiv cov txheej ntawm UV thiab kev puas tsuaj.
Kev tso kawm:Ua kom ntseeg tau tias kev tsim nyog bar spacing, lap ntev, thiab npog tuab (ntau dua los yog sib npaug rau 50 hli rau cov pob zeb.
10. Kuaj thiab Tswj Tswjhwm Zoo
Railway Qhov lub zog cuam tshuam rau kev sim nruj kom ntseeg tau ntev- Lub sij hawm kev nyab xeeb thiab ntseeg tau:
Kev ntsuam xyuas txhua yam:Tos, tensile, elongation, thiab khoov xeem.
Qaug zog kuaj:Simulated dynamic thauj khoom rau kev tsheb nqaj hlau.
Tshuaj Ntsuam Xyuas Tshuaj:Xyuas kom tswj cov ntsiab lus carbon cov ntsiab lus (C tsawg dua lossis sib npaug rau 0.25%).
Kev cuam tshuam thiab cov kev ntsuam xyuas nruj:Tshaj tawm kev sib luag ntawm qhov kub tsawg.
Txheej kev tshuaj xyuas:Thickness (dft), adhesion, thiab ntsev {- tsuag tsuag.
Mill xeem Daim Ntawv Pov Thawj (MTC):Muab rau tag nrho traceazebility (naj npawb cua sov, ntau daim ID).
Thib peb - Tog ntawv pov thawj:SGS, BV, lossis TÜV thaum thov kom muaj cov phiaj xwm kev ua haujlwm.
11. Kev Sib Piv: Kev Railway Rebar vs. Decog Rebar
| Ntiag tug | Lub tsev rebar | Railway Rebar |
|---|---|---|
| Yield zog (mpa) | 335–400 | 500–650 |
| Qeeb zog tsis kam | Tswj kav | Zoo heev (Cyclic Load Tested) |
| Kev ua siab loj | Tswj kav | High (e - qib) |
| Corrosion tiv thaiv | Yam ua tau | Yuav tsum tau (coated / alloyed) |
| Kev Pabcuam Lub Neej | 25-50 xyoos | 50-100 xyoo |
| Raug Thov | Tsev | Cov ciav hlau, cov tunnels, txuas hniav, kev sib tw slabs |
12. Ntim thiab xa khoom
Bundles:1-3 tons txhua, ruaj ntseg strapped.
Khij:Txhua tus pob ntawv lo nrog loj, qib, txheem, thiab tus lej cua sov.
Pob:Seaworthy export ntim nrog cov ntaub qhwv dej waterproof.
Kev Xa Khoom:Ncaj ncaj lossis coils (rau me me diameters).
Ntawv pov thawj:Muab nrog cov ntawv MTC thiab tshuaj xyuas cov ntaub ntawv.
13. Cov Qauv Txheej Txheem thiab Tsim Qauv
GB / T 1499.2-2018:Kub -} ribbed tuav rau qhob pob zeb nthuav dav.
ASTM A706 / A775:Weldable thiab Epoxy -} coated rebar cov qauv.
EN 10080 / Eurocode 2:Qhov kev pab cuam lub zog rau cov qauv kev thauj mus los.
Phau Ntawv Kev Tuav (Tebchaws Asmeskas):Cov qauv kev tsheb nqaj hlau txhawb kev coj ua.
Aashto lrfd choj tsim cov qauv:Rau cov neeg vwm.
Yog 1786:Indian rebar txheem rau cov teeb meem hnyav.
JIS G3112:Japanese Railway -} qeb ntxiv cov hlau.
14. Ntsiab lus
Railway Rebaryog aTshwj xeeb, High -} Kev Ua Haujlwm Txhawb HlauEngineed los pab txhawb qhov kev xav tau ntawm kev siv tsheb ciav hlau kev tsim kho - los ntawm high- Ceev rau qhov chaw thiab cov choj. Nws ua kesiab lub zog, ductility, nkees tsis kam, thiab kev tiv thaiv corrosionkom xa kev nyab xeeb tshaj plaws thiab kev ntseeg tau.
Nws cov khoom siv zoo tshaj thiab lub neej ntev ua rau nws xaiv qhov zoo tshaj plaws rauKev Railway Cov Kev Muag Khoom Tseem Ceeb, kom ntseeg taudu qha, txo kev txij nkawm, thiab ntev - lub sij hawm txheej txheem detability.
Koj puas xav kom kuv tsim aRailway Rebar Cov Khoom Muag DatasheetTom ntej no - Tshaj tawm nws cov qhab nia, qhov loj me, thiab cov ntawv thov (txuas ntxiv rau cov ntaub ntawv lossis cov ntaub ntawv xa tawm?
Cim npe nrov: Railway Rebar, Tuam Tshoj Railway Rebar Manufacturers, Chaw muag khoom, Hoobkas
