Lub luag haujlwm tseem ceeb: Kev rho tawm hluav taws xob ntxiv rau cov qauv txuas ntxiv
Lub luag haujlwm tseem ceeb ntawm rail insulated ntses daim hlau yog hluav taws xob cais cov kab tsheb ciav hlau uas nyob ib sab thaum ua kom cov kev sib koom ua ke tsis tu ncua. Hauv cov ntses ib txwm muaj-plated sib koom ua ke, ob lub steel tuav tsim ib qho kev txuas hluav taws xob txuas ntxiv ntawm txoj hlua. Nyob rau hauv ib qho kev sib koom ua ke, cov khoom siv insulating tawg txoj hauv kev: qhov sib xyaw kawg - ncej zaum ntawm ob txoj kab tsheb ciav hlau, insulating bushes thiab washers cais cov bolts los ntawm cov tuav thiab cov tsheb ciav hlau, thiab cov tuav lawv tus kheej raug khi los yog bolted ntawm ob sab ntawm lub rwb thaiv tsev. Qhov kev sib koom ua ke txuas ntxiv mus nqa lub sijhawm khoov, tuav cov hlua hauv kev sib dhos hauv ob qho tib si kab rov tav thiab ntsug, thiab tiv thaiv txoj kev tsheb nqaj hlau ntev - tab sis nws thaiv cov dej ntws tam sim no, uas yog qhov kev sib tw khiav ntawm qhov nyob ntawm.
Vim li cas hluav taws xob rho tawm yog qhov tseem ceeb rau kev teeb tsa
Cov kab hluav taws xob taug qab pom qhov muaj cov tsheb ciav hlau los ntawm kev hla qhov tsawg-voltage tam sim no raws ib txoj kev tsheb ciav hlau, los ntawm lub tsheb ciav hlau lub qag, thiab rov qab mus rau lwm txoj kev tsheb ciav hlau mus rau lub relay. Txhawm rau ua qhov no, txhua qhov kev sib tw - ntu hluav taws xob yuav tsum tau muab hluav taws xob sib cais los ntawm cov neeg nyob ze. Insulated pob qij txha tsim cov ciam teb. Yog hais tias lub rwb thaiv tsev puas lawm - los ntawm kev sib kis, ya raws, los yog kev puas tsuaj rau txhua yam - tam sim no los ntawm kev sib koom ua ke, lub relay yuav nyob twj ywm, thiab lub kaw lus tsis tuaj yeem ntes lub tsheb ciav hlau nyob hauv seem. Insulated ntses daim hlau yog li kev nyab xeeb- cov cim qhia tseem ceeb, thiab lawv cov rwb thaiv tsev tiv thaiv tau raug txheeb xyuas txhua lub sijhawm thaum tu. Nyob rau hauv hluav taws xob railways thiab metros, lawv kuj cais traction fais fab seem thiab tiv thaiv stray tam sim no ntws mus rau hauv cov qauv thiab corroding faus hlau.
Cov Khoom Siv Tseem Ceeb thiab Kev Ua Haujlwm
Railway signaling systems:tiv thaiv kom tsis txhob muaj hluav taws xob los ntawm kev cuam tshuam nrog cov kab hluav taws xob siv los ntes cov tsheb ciav hlau.
Electrified railways thiab metro:cais cov kab khiav hluav taws xob, feem ntau yog siv high-lub zog fiber ntau-cov khoom siv hluav taws xob los yog iav- cov ntaub ntawv rwb thaiv tsev fiber ntau.
Joint stability:khaws cov rails nyob rau hauv ob qho tib si kab rov tav thiab ntsug txawm tias thaum muab rwb thaiv tsev.
Noise txo:ib lub qhov dej-bonded insulated joint txo cov qauv-cov suab nrov thiab cov pa tawm ntawm qhov sib koom ua ke piv nrog cov hlua khi xoob.
Reference Joint Bar Specifications
| Txuj | Hom | Ntev / Dia | Qhov hnyav |
|---|---|---|---|
| AREMA | 115 RA | 4 qhov - 24" | 17.04 Kg |
| AREMA | 115 RA | 6 qhov - 36" | 25.56kg 3 |
| AREMA | 132-136 IB | 4 qhov - 24" | 17.75 Kg |
| AREMA | 132-136 IB | 6 qhov - 36" | 26, 63 kg |
| UIC 864 | UAS 60 | 4 qhov - 630 hli / Φ26 | 18.07 Nws |
| UIC 864 | UAS 60 | 4 qhov - 600 hli / Φ28 | 17.47 kg ib |
| UIC 864 | UAS 54 | 4 qhov | 14.34 Kg |
| UIC 864 | UAS 54 | 6 qhov - 800 mm | 19, 94 kq |
| IB 47-1 | BS 90 A | 685.8 hli / Φ26 | 13.23 Kg |
| IB 47-1 | BS 100 A | 4 qhov | 18.08 Kg |
| AS | 50 kg | 4 qhov | 14.30 Nws |
| AS | S49 | 4 qhov | 9 ,71kg |
Kev sib koom ua ke bar hlau rau cov ntu no yog qib 45 # nrog carbon 0.42-0.50%, manganese 0.50-0.80%, silicon 0.17-0.37%, chromium txog 0.25%, thiab phosphorus thiab sulfur txhua txwv rau 0.035%; Cov ntu BS hnyav dua siv cov qib siab dua nrog cov pa roj carbon 0.62-0.70%.
Tsev Neeg ntawm Rail Joints
| Hom sib koom | Ntsiab Specification / Description |
|---|---|
| Standard rail sib koom tes (ntses phaj) | Profile sib phim rau seem rail; ntev feem ntau 600 mm lossis 800 mm ib sab; 4 los yog 6 bolts qhov rau ib lub bar. |
| Insulated rail sib koom (IRJ) | Cov tub ntxhais hlau nrog kev sib xyaw insulating kawg- cov ntawv thiab cov phaj, lossis tag nrho epoxy-composite; hluav taws xob tsis kam tshaj 10⁸ Ω. |
| Compromise rail sib koom ua ke | Txuas ob qhov sib txawv rail profiles, txhua sab machined rau nws tus kheej seem. |
| Joggled rail sib koom | Ntu kev nyuaj siab ua rau qhov chaw khiav mus tas li rau lub log kom zoo dua. |
| Choj rail sib koom | Kev txhawb zog, lub vev xaib tuab dua thiab cov kab ntev dua rau siab - qhov chaw muaj kev ntxhov siab xws li choj mus txog. |
| Glued insulated sib koom | Cov kab hlau txuas nrog rau cov rwb thaiv tsev sib xyaw nrog siab - lub zog nplaum rau kev txhim kho durability. |
| Welded rail txuas (rau CWR) | Flash- pob tw lossis thermite weld ntsib niam txiv -rail mechanical zog. |
| Expansion Joint (rau BRE) | Tso cai tswj thermal expansion nyob rau hauv txoj kab ntev ntawm cov txuas hniav los yog hauv cov cheeb tsam kub heev. |
Xaiv thiab tuav Insulated Fish Phaj
Kev xaiv pib los ntawm txoj kev tsheb ciav hlau: lub bar profile yuav tsum sib phim rau qhov chaw nuv ntses rail thiab lub qhov qauv yuav tsum tau kab nrog cov rail web qhov nyob rau hauv ± 0.5 hli. Rau kev taug qab - lub luag haujlwm hauv lub voj voog, lees paub qhov kev ntsuas kev tiv thaiv hluav taws xob, feem ntau siab dua 10⁸ Ω, thiab qhov kev pabcuam kub ntawm cov khoom siv rwb thaiv tsev. Hauv kev pabcuam, qhov tseem ceeb ntawm kev saib xyuas yog ua kom qhov sib koom ua ke huv si thiab qhuav: roj, xeb, ballast plua plav thiab noo noo bridging kawg - ncej yog feem ntau ua rau rwb thaiv tsev tsis ua haujlwm. Bonded (glued) cov pob qij txha insulated xav tau kev tshuaj xyuas ib ntus ntawm daim ntawv cog lus thiab ntsia liaj qhov rooj torque; bolted hom xav tau re-torquing kom tuav lub zog clamp.
Cov lus nug nquag
Puas yog insulated ntses daim hlau xav tau ntawm txhua txoj kev?
Tsuas yog qhov yuav tsum tau muaj hluav taws xob sib cais - taug qab- cov kab hluav taws xob, ntu hluav taws xob thiab qib - kev tiv thaiv hla. Cov kab uas tsis muaj teeb liab circuits tuaj yeem siv cov qauv ntses daim hlau.
Dab tsi yog qhov txawv ntawm insulated thiab glued insulated pob qij txha?
Ib qho kev sib koom ua ke tuaj yeem ua tau bolted lossis glued; ib qho kev sib txuas ua ke yog ib qho kev tsim kho tshwj xeeb uas cov kab txuas txuas rau lub vev xaib kev tsheb nqaj hlau nrog cov txheej txheem nplaum, muab kev nruj dua thiab ntev dua - lub sij hawm rwb thaiv tsev dua li kev sib koom ua ke.
Ntev npaum li cas yuav tsum tau kuaj xyuas cov rwb thaiv tsev?
Rwb thaiv tsev raug txheeb xyuas thaum lub sij hawm teem caij taug kev- kev ntsuas hluav taws xob thiab tom qab ib qho tamping, ballast tu lossis kho tsheb ciav hlau ze ntawm qhov sib koom ua ke. Cov chaw ntub dej ntau dhau los yog cov kab mob paug ua rau muaj kev cuam tshuam luv dua.
Puas muaj kev sib koom ua ke insulated hauv CWR khiav?
Yog lawm, cov hlua khi hlua khi yog tsim rau CWR thiab ntev welded rail; daim ntawv cog lus yuav tsum nqa lub tsheb ciav hlau qhov ntev ntawm lub zog, yog li kev teeb tsa qhov kub thiab txias yog tswj tau.
Yuav ua li cas yog tias qhov rwb thaiv tsev tsis ua haujlwm?
Cov kab hluav taws xob tsis tuaj yeem ntes cov tsheb ciav hlau ruaj khov hauv ntu ntawd, yog li kev sib koom ua ke raug kho lossis hloov tam sim ntawd, feem ntau nyob rau hauv lub qhov rais saib xyuas luv luv kom tsis txhob muaj kev txwv ceev.