A rail ntses phajyog ib qho khoom siv sib koom ua ke uas rov ua kom muaj zog seem ntawm txoj kev tsheb ciav hlau, tiv thaiv ntau dhau deflection, kev vibration, thiab kev cuam tshuam cov loads uas yuav txwv tsis pub kev tsheb ciav hlau kawg qaug zog.GNEE RAILmuab ntses daim hlau rau GB qauv, UIC qauv, DIN536 thiab QU crane rail systems, JIS rails, AS1085 rails, BS11 profiles, thiab AREMA / ASCE rails, thiab muab bolt - qib sib piv thiab kev siv cov lus qhia.
Yuav ua li cas yog ib tug rail expansion sib koom?
Ib txoj kev tsheb ciav hlau nthuav dav sib koom ua ke (lossis hloov pauv hloov pauv) yog qhov tshwj xeeb kev tsheb ciav hlau taug qab txoj kev tsim los tso cai rau kev txav mus ntev, nthuav dav, thiab kev sib cog lus ntawm cov tsheb ciav hlau tshwm sim los ntawm kev hloov pauv kub, choj txav, lossis, qee zaum, mining subsidence. Nws tiv thaiv buckling, deformation, thiab breakage nyob rau hauv ntev seem ntawm kev khiav, tshwj xeeb tshaj yog nyob rau hauv Continuously Welded Rails (CWR).
Cov yam ntxwv tseem ceeb thiab kev siv piv txwv
- Daim Ntawv Thov Choj:Yuav tsum tau nyob rau hauv cov choj nrog expansion pob qij txha kom haum rau kev txav ntawm lub hauv paus qauv.
- Kev Tswj Kub Kub:Siv nyob rau hauv CWR los tiv thaiv buckling thaum lub sij hawm kub los yog txias txias, feem ntau yog los ntawm kev cia tus txheeb ze ntawm ob txoj kab uas nyob ib sab.
- Qhov chaw tshwj xeeb:Feem ntau ntsia ze ntawm qhov tunnels, ntawm cov choj, thiab ntawm cov pob qij txha.
- Mechanism:Siv tus nplaig thiab lub puab tsaig uas txav mus rau ib leeg thaum tuav lub ntsuas ntsuas tas li.
- Hom:Nws tuaj yeem tsim nrog lossis tsis muaj kev tiv thaiv, haum rau cov khoom hnyav (txog 35 tons qag load).
Vim li cas thiaj muaj qhov sib txawv ua ntej taug kev?
Qhov khoob (los yog cov pob qij txha rail) yog sab laug ntawm steel railway lem feem ntau tso cai rauthermal expansionthaum huab cua kub. Txij li cov hlau nthuav dav thaum cua sov, cov qhov khoob no tiv thaiv cov lem ntawm buckling, deforming, lossis warping, uas tuaj yeem ua rau lub tsheb ciav hlau loj.
- Thermal Expansion:Nyob rau hauv lub caij ntuj sov, lub hnub heats cov hlau rails, ua rau lawv nce nyob rau hauv ntev. Tsis muaj qhov sib txawv, cov ntsia hlau yuav thawb tawm tsam ib leeg thiab khoov.
- Tiv thaiv buckling:Thaum cov ntsia hlau nthuav dav thiab tsis muaj qhov chaw nthuav dav, txoj kev taug kev khoov rau sab lossis sab saud, hu ua buckling.
- Kev cog lus hauv Cold:Hloov chaw, thaum lub caij ntuj no, cov hlau cog lus. Cov qhov khoob tiv thaiv cov bolts tuav cov lem ua ke los ntawm kev tawg vim muaj kev kub ntxhov.
- Kev tsim kho vaj tse:Txawm hais tias muaj ntau cov kab niaj hnub siv txuas txuas txuas txuas (CWR) kom txo qis suab nrov, cov laus dua, cov kev sib txuas ua ke yog bolted ua ke nyob rau hauv ntu, yuav tsum muaj qhov sib txawv ntawm qhov tsis tu ncua.
Hom kev tsheb ciav hlau muaj dab tsi?
Rail cov pob qij txha yog cov khoom tseem ceeb txuas cov hlua uas nyob ib sab, categorized los ntawm txoj kev txhawb nqa, kev sib dhos, kev ua haujlwm, thiab txoj kev fastening. Cov hom tseem ceeb muaj xws li kev txhawb nqa / tshem tawm cov pob qij txha, staggered / tawm tsam cov pob qij txha, kev sib koom ua ke (qhov sib txawv ntawm qhov sib txawv), cov pob qij txha insulated (rau kev taw qhia), thiab cov pob qij txha / bolted. Cov no ua kom muaj kev txuas ntxiv, kev nyab xeeb, thiab haum rau kev nthuav dav.
Key Rail Joint Hom
Raws li Txoj Haujlwm rau Sleepers:
- Suspended Joint: Qhov sib koom ua ke yog raug tshem tawm ntawm ob tus neeg pw tsaug zog. Hom ntau tshaj plaws, tso cai rau kev saib xyuas yooj yim dua.
- Supported Joint: Qhov sib koom ua ke ncaj qha rau ntawm tus neeg pw tsaug zog.
- Choj Joint: Ib qho tshwj xeeb ncua kev sib koom ua ke qhov twg ib lub phaj hlau txhawb nqa txoj kev tsheb ciav hlau xaus.
Raws li Txoj Haujlwm ntawm Txoj Kev:
- Staggered Joint: Cov pob qij txha ntawm cov kab sib dhos tsis sib haum; siv rau ntawm txoj kab nkhaus kom tiv thaiv pob zeb.
- Sib Nqus (Square) Joint: Cov pob qij txha ntawm ob lub tsheb ciav hlau nyob ntawm tib qho kev hla -section.
Raws li Kev Ua Haujlwm / Daim Ntawv Thov:
- Compromise Joint: Txuas ob txoj hlua nrog sib txawv profiles lossis ntau thiab tsawg.
- Insulated / Glued Joint: Siv cov ntaub ntawv insulating (xws li, polyurethane) rau hluav taws xob cais cov rail seem rau kev taw qhia, tiv thaiv luv luv Circuit Court.
- Joggled / Bulge Joint: Siv rau kev kho sai, kho ib ntus ntawm kev tawg lossis tawg welded rails.
- Expansion Joint: Tso cai rau thermal expansion thiab contraction ntawm txoj kev tsheb ciav hlau, feem ntau siv rau cov choj ntev.
| Hom sib koom | Ntsiab Specification / Description |
|---|---|
| Standard Rail Joint (Fish Phaj) | - Profile:Sib npaug ntawm ntu kev tsheb nqaj hlau (piv txwv li, UIC 60, 136RE). - Ntev:Feem ntau 600mm lossis 800mm ib sab. - Qhov:4 los yog 6 bolts qhov rau ib lub bar. |
| Insulated Rail Joint (IRJ) | - Khoom siv:Cov tub ntxhais hlau nrog cov khoom sib xyaw ua ke kawg -cov ntawv / phaj, lossis tag nrho epoxy composite. - Hluav taws xob Resistance: >10⁸ Ω. |
| Kev sib haum xeeb Rail Joint | - Tsim:Txuas ob txoj kev tsheb ciav hlau sib txawv (xws li UIC 54 rau UIC 60). - Profile:Txhua sab yog machined kom phim nws cov rail seem. |
| Joggled Rail Joint | - Feature:Muaj ib qho kev nyuaj siab (joggled) seem kom tso cai txuas ntxiv rail taub hau nto rau smoother lub log. |
| Choj Rail Joint | - Tsim:Feem ntau siv zog (thicker web/ntev ntev) rau siab - qhov chaw muaj kev ntxhov siab xws li choj txoj kev. |
| Glued Insulated Joint | - Kev tsim kho:Cov hlau tuav sib txuas ua ke rau cov rwb thaiv tsev sib xyaw siv siab - lub zog nplaum rau kev txhim kho durability. |
| Welded Rail Joint (rau CWR) | - Hom:Flash- pob tw lossis thermite weld. - Specification:Weld yuav tsum ua kom tau raws li cov khoom siv sib npaug los yog siab dua cov niam txiv txoj kev tsheb nqaj hlau. |
| Expansion Joint (rau BRE) | - Feature:Tso cai tswj thermal expansion nyob rau hauv txoj kab ntev ntawm cov txuas hniav los yog hauv cov cheeb tsam kub heev. |
Raws li Kev Sib Txuas Lus:
- Bolted Joint: Kev sib txuas ua ke siv cov ntses thiab bolts.
- Welded Joint: Rails yog welded ua ke kom tshem tawm qhov sib txawv, muab kev caij tsheb zoo dua.
Founded hauv 2008,GNEE RAILyog lub chaw tsim khoom lag luam thoob ntiaj teb thiab cov khoom lag luam ntawm cov khoom siv tsheb ciav hlau, tshwj xeeb hauv siab - zoorail ntses daim hlau(cov khoom sib koom ua ke / cov kab sib txuas) nrog lub peev xwm ntau lawm thiab kev pabcuam thoob ntiaj teb.
Peb rail ntses phaj portfolio muaj kev txawj ntse thiab ua raws li thoob ntiaj teb cov qauv xws li UIC, AREMA, BS, DIN, thiab GB, npog lub teeb rail (8kg-30kg), hnyav rail (38kg-75kg), thiab crane rail (QU70-QU120) systems. Peb muaj ntau hom xws li insulated ob leeg tuav, bulged ntses daim hlau, thiab kev cuam tshuam kev tsheb nqaj hlau pob qij txha, nrog meej specifications (4-qhov / 6-qhov, 24-nti / 36-nti), kom ntseeg tau zoo heev mechanical kev ua tau zoo.Peb tuav nruj zoo tswj kev txhawb nqa los ntawm ISO 9001: 2015 nyob rau hauv ib qho chaw thib peb-tsim kev soj ntsuam, SGS thiab BV. Peb qhov kev pabcuam ib leeg suav nrog kev tsim kho, tsim khoom, ntim khoom, thiab kev txhawb nqa tom qab muag, haum rau cov neeg siv khoom xav tau.