Puas yog txoj kev tsheb ciav hlau nyuaj?
Jan 21, 2026
Hlau railyog ib yam khoom kub-khoov steel nrog tus qauv ntoo khaub lig- ntu uas muaj lub taub hau tsheb ciav hlau, lub vev xaib, thiab lub hauv paus, tsim los coj cov log, faib cov log tsheb thauj khoom, thiab hloov cov kev ntxhov siab kom nyab xeeb rau hauv cov pw tsaug zog thiab ballast lossis pob zeb ua pob zeb. Raws li lub hauv paus load-cov kabmob ntawm txoj kev tsheb ciav hlau thiab kev lag luam khiav, steel rail yuav tsum muaj qhov ruaj khov thiab ruaj khov ntawm qhov chaw nyob rau hauv ntev - lub sij hawm cyclic loading. Txawm hais tias txoj kev tsheb ciav hlau "hardened" ncaj qha cuam tshuam rau kev hnav tsis kam, qaug zog lub neej, thiab kev ua haujlwm tag nrho.
Raws li tus kws tshaj lij kev tsheb nqaj hlau xa khoom, GNEE RAIL tuaj yeem muab cov qauv sib txawv steel hlau xws li GB, Asmeskas, BS, UIC, DIN, JIS, Australian thiab South Africa uas siv hauv kev tsheb ciav hlau, cranes thiab thee mining.
| 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 | |
| 22 kg / 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 |
Puas yog txoj kev tsheb ciav hlau nyuaj?
Yog lawm, ntau txoj kev tsheb ciav hlau niaj hnub no tau ua kom tawv los ntawm kev kho cua sov,tab sis tsis zoo ib yam li quenched structural steel qhov chaw. Tom qab kub dov, cov ntsia hlau yuav ua rau lub taub hau hardening los yog tag nrho - ntu kev kho cua sov, qhov twg lub taub hau tsheb ciav hlau tau txias sai heev los ua kom cov pearlite microstructure, ua rau saum npoo tawv thiab qaug zog thaum tswj kom muaj zog txaus hauv lub vev xaib thiab hauv paus. Cov txheej txheem no ua rau muaj txiaj ntsig zoo rau kev sib cuag nrog kev qaug zog thiab kev hnav ntawm qhov chaw, uas yog qhov tseem ceeb rau siab - tsheb ciav hlau txoj kab tsheb ciav hlau thiab hnyav - txoj kev taug kev.
Cov qauv sib txawv txhais cov kev sib txawv hardened rail pawg. Piv txwv li, EN 13674-1 qhia cov qib xws liR260, R320Cr,thiabR350HT,qhov twg "HT" qhia tias cov cua sov- kho cov kab uas muaj zog dua thiab muaj zog dua. Hauv Suav cov qauv, qib xws liua 71mnthiabU75Vkuj tseem tuaj yeem tau txais kev tswj kom txias kom txhim khu kev ua haujlwm saum npoo. GNEE RAIL muab ob qho tib si dov thiab cua sov- kho cov ntsia hlau raws li qhov yuav tsum tau ua, ua kom pom kev sib npaug ntawm qhov tawv, lub zog, thiab tawv.
Hom hardness theem ntawm tus qauv thiab hardened rails:
| Txuj | Qib | Kev kho cua sov | Hardness (HB) | Daim ntawv thov |
|---|---|---|---|---|
| TS EN 13674-1 | R260 | Ib txwm dov | 260–300 | Pas neeg nrog caij thiab freight kab |
| TS EN 13674-1 | R350 HT | Lub taub hau tawv | 350–390 | Hnyav thauj thiab siab - kab ceev |
| GB | ua 71mn | Tswj cua txias yeem | 260–300 | General railway thiab industrial lem |
| GB | U75V | Tswj cua txias ntau | 300–340 | Crane rails thiab siab -load lem |
| AREMA | 900A | Kev kho cua sov yog xaiv tau | 300–340 | North American freight corridors |
Cov qib hardness no qhia tau hais tias "hardened" rails tau tsim tshwj xeeb los tiv thaiv kev puas tsuaj rau saum npoo thaum tseem tiv thaiv kev tawg tawg hauv qhov cuam tshuam.
Vim li cas Hardening tseem ceeb dua rau qee qhov kev siv Rail?
Tsis yog txhua qhov kev taug kev muaj kev ntxhov siab tib yam. High- cov neeg caij tsheb ciav hlau ceev tau ntsib kev sib cuag nrog kev qaug zog vim yog lub log dhau mus, thaum hnyav - cov kab tsheb thauj mus los tau raug rau lub nra hnyav heev uas tuaj yeem ua rau cov yas ntws ntawm lub taub hau tsheb ciav hlau. Nyob rau hauv ib puag ncig kev lag luam, crane rails muaj kev cuam tshuam ntsug muaj zog thiab lateral quab yuam thaum lub sij hawm trolley acceleration thiab braking. Nyob rau hauv cov xwm txheej no, tsis txaus hardness ua rau hnav sai, corrugation, thiab nto tawg, uas ua rau lub neej luv luv thiab ua rau cov nqi tu.
Kev sib piv ntawm hardness thov ntawm rail daim ntaub ntawv:
| Hom ntawv thov | Hom Rail Standard | Qib Siab | Hardness Xav tau |
|---|---|---|---|
| Neeg nrog caij railway | EN, UIC, GB | R260, U71Mn | Nruab nrab |
| Hnyav- thauj khoom | EN, AREMA, GB | R350HT, 900A | Siab |
| Chaw nres nkoj crane khiav | DIN536, YB/T | U75V | Siab heev |
| Steel cog hloov kab | DIN536, QH | U71Mn, U75V | Siab |
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.
