Hom hlau twg siv hauv kev tsheb ciav hlau?
Rail lem yog tsim los ntawm siab-zoo, kub- dov steel, tshwj xeeb siab- carbon lossis alloy steel, xaiv rau nws qhov tshwj xeeb hardness, hnav tsis kam, thiab muaj peev xwm tiv taus qhov hnyav, kev sib txhuam, thiab qhov kub thiab txias. Cov alloys sib txawv (xws li vanadium, chromium, titanium) thiab kev kho cua sov yog siv los tsim kom muaj zog, ruaj khov dua rau cov tsheb ciav hlau hnyav dua lossis nrawm dua, nrog cov pa roj carbon steel (ib puag ncig 0.7-0.8% carbon) yog lub hauv paus feem ntau.
Hom rail hlau
Carbon Steel: Tus qauv rau feem ntau lem, nws muaj zog thiab yooj yim rau forge, nrog carbon thiab manganese cov ntsiab lus ua rau nws resilience.
Alloy Steel: suav nrog cov ntsiab lus xws li vanadium, chromium, lossis titanium rau qhov nyuaj dua, lub zog, thiab hnav tsis kam, haum rau kev xav tau.
Thaum tshav kub kub-Thiab Steel: Cov pa roj carbon lossis alloy steels uas tau tswj xyuas cov cua sov thiab cua txias kom kho lawv cov qauv sab hauv, txhawb lub zog thiab tawv.
Txij li thaum xyoo 2008, GNEE RAIL tau muab cov hlua hlau sib txawv rau ntau tshaj 18 xyoo, steel rails los ntawm GNEE tau pom zoo nyob hauv Suav teb thiab txawv teb chaws.Wtih cov cuab yeej txiav ntug, GNEE tsim cov khoom zoo steel hlau uas ua tau raws li cov kev cai ntawm 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.
| Kev faib tawm | Qhov siab (mm) | Lub taub hau (mm) | Hauv qab (mm) | Thickness (mm) | Qhov hnyav (kg / m) | |
| Lub Teeb Rail | 8 KG / M | 65 | 25 | 54 | 7 | 8.42 |
| 9 KG / M | 63.5 | 32.1 | 63.5 | 5.9 | 8.94 | |
| 12 KG / M | 69.85 | 38.1 | 69.85 | 7.54 | 12.2 | |
| 15 KG / M | 79.37 | 42.86 | 79.37 | 8.33 | 15.2 | |
| 18 KG / M | 80 | 40 | 80 | 10 | 18.06 | |
| Kev faib tawm | Qhov siab (mm) | Lub taub hau (mm) | Hauv qab (mm) | Thickness (mm) | Qhov hnyav (kg / m) | |
| Heavy Rail | 38 KG / M | 134 | 68 | 114 | 13 | 38.733 |
| 43 KG / M | 140 | 70 | 114 | 14.5 | 44.653 | |
| 45 KG / M | 145 | 67 | 126 | 14.5 | 45.546 | |
| 50 KG / M | 152 | 70 | 132 | 15.5 | 51.514 | |
| 60 KG / M | 176 | 73 | 150 | 16.5 | 60.64 | |
| Kev faib tawm | SIZE (mm) | theoretical luj | |||||||||
| qhov siab | hauv qab dav | taub hau dav | lub duav tob | ||||||||
| Crane rail | qw 70 | 120 | 120 | 70 | 28 | 52.8 | |||||
| qw 80 | 130 | 130 | 80 | 32 | 63.69 | ||||||
| QU 100 | 150 | 150 | 100 | 38 | 88.96 | ||||||
| qw 120 | 170 | 170 | 120 | 44 | 118.1 | ||||||
Mechanical khoom ntawm railway khiav hlau
- Lub zog
Lub peev xwm ntawm txoj kev tsheb ciav hlau los tiv thaiv deformation thiab kev puas tsuaj hauv qab thauj khoom. Nws yog feem ntau qhia nyob rau hauv cov nqe lus ntawm lub zog txwv, yield limit, thiab lwm yam ntsuas. Lub zog txwv (lub zog tensile) txhais tau tias cov khoom siv hlau tiv thaiv lub zog tensile thiab qhov siab tshaj plaws uas tsis tuaj yeem rhuav tshem. Qhov kev txwv tsis pub dhau (yield zog) yog hais txog kev ntxhov siab thaum cov khoom siv hlau tseem tuaj yeem tsim cov yas deformation tseem ceeb yam tsis muaj kev nce ntxiv. Chav tsev yog Mpa.
- Plasticity
Cov khoom siv hlau ua rau muaj kev cuam tshuam loj heev yam tsis muaj kev puas tsuaj nyob rau hauv lub load thiab tuaj yeem tswj tau qhov deformed zoo tom qab lub load raug tshem tawm. Nws yog feem ntau qhia nyob rau hauv cov nqe lus ntawm elongation thiab shrinkage. Elongation yog qhov feem pua ntawm qhov sib piv ntawm qhov ntev calibrated mus rau qhov qub calibrated ntev tom qab tus qauv tawg. Seem shrinkage yog qhov feem pua ntawm qhov piv ntawm qhov txo qis hauv cheeb tsam tawg ntawm cov qauv mus rau qhov qub enthalpy cheeb tsam.
- Hardness
Lub peev xwm ntawm cov khoom siv hlau los tiv thaiv qhov nias ntawm lwm yam khoom nyuaj (khoom siv) rau hauv nws qhov chaw. Raws li kev ntsuas sib txawv, nws tuaj yeem muab faib ua Brinell hardness (HB) thiab Rockwell hardness (HRC).
Kev xyaum tau ua pov thawj tias muaj qee qhov kev sib raug zoo ntawm hardness thiab lub zog, uas tuaj yeem kwv yees raws li Brinell hardness tus nqi.
Xam lub zog tensile ntawm cov khoom. Xws li cov pa roj carbon tsawg 6b≈0.36HB, siab carbon steel 6b≈0.34HB.
- Kev ua siab ntev
Lub peev xwm ntawm cov ntaub ntawv hlau los tiv thaiv kev cuam tshuam kev thauj khoom yam tsis muaj kev puas tsuaj. Lub toughness ntawm cov ntaub ntawv hlau tuaj yeem ntsuas los ntawm qhov kev sim cuam tshuam thiab qhia los ntawm kev cuam tshuam toughness tus nqi k hauv kJ / m2.
- qaug zog
Nyob rau hauv qhov kev txiav txim ntawm alternating load, cov khoom tawg. Lub peev xwm ntawm cov ntaub ntawv hlau los tiv thaiv kev qaug zog yog ntsuas los ntawm kev qaug zog. Lub zog qaug zog yog qhov siab tshaj plaws ntawm cov khoom siv hlau nyob rau hauv kev rov ua dua alternating loads yam tsis ua haujlwm.
NtawmGNEE RAIL, peb tshwj xeeb hauv kev muab ntau yam ntawm kev tsheb ciav hlau, suav nrog cov tsheb ciav hlau hnyav, tsheb ciav hlau, tsheb ciav hlau crane thiab tsheb ciav hlau fastening, nrog rau kev sib tw siab -kev ua haujlwm tsheb ciav hlau clips thiab kev daws teeb meem. Rov qab los ntawm kev tswj hwm nruj thiab kev lag luam ntawv pov thawj, peb cov khoom raug tsim ua kom tau raws li cov qauv thoob ntiaj teb thiab ntau qhov kev xav tau.
Txawm hais tias koj tab tom tsim txoj kab tsheb ciav hlau tshiab lossis txhim kho lub network uas twb muaj lawm, peb muab ib qho - nres cov kev pab cuam los ua kom yooj yim rau koj cov txheej txheem kev xa khoom - xyuas kom cov khoom xa tuaj raws sijhawm, tus nqi sib tw, thiab kev txhawb nqa kev tshaj lij.
Tiv tauj pebhnub no kom pom tias peb tuaj yeem ua kom koj txoj kev tsheb ciav hlau ua tiav!