Rwb thaiv tsev Class ntawm Fastening Systems thiab Compatibility nrog Electrified Railways
Dab tsi yog cov txheej txheem tseem ceeb ntawm lub teb chaws tus qauv Class III insulated fastening systems?
Lub teb chaws tus qauv Class III insulated fastening system yuav tsum xub ua kom tau raws li qhov yuav tsum tau ntawm rwb thaiv tsev. Ntawm 20℃thiab 60% av noo, lub rwb thaiv tsev tiv thaiv yuav tsum siab dua los yog sib npaug rau 10^9Ω kom ntseeg tau tias muaj kev sib cais tam sim no. Nws yuav tsum dhau lub zog zaus tiv thaiv qhov ntsuas hluav taws xob thiab nyob twj ywm tsis yog - tawg thiab tsis yog -flashover rau 1 feeb hauv qab 5kV voltage, yoog rau lub zog hluav taws xob ib puag ncig ntawm high-voltage electrified railways. Insulating Cheebtsam nyob rau hauv lub kaw lus, xws li insulating gauge blocks thiab insulating gaskets, yuav tsum tau ua los ntawm high - kub resistant epoxy iav fiber ntau cov ntaub ntawv, uas muaj peev xwm ua kom ruaj khov rwb thaiv tsev kev ua tau zoo nyob rau hauv qhov kub ntawm -40℃mus rau 120℃. Kev tiv thaiv- kev laus ua haujlwm ntawm cov khoom siv insulating yuav tsum ua tau raws li tus qauv. Tom qab 3000 teev ntawm kev kuaj kev laus ultraviolet, qhov rwb thaiv tsev tiv thaiv attenuation tsawg dua los yog sib npaug li 10%, ua tau raws li qhov xav tau ntawm kev siv ntev - siv sab nraum zoov. Tsis tas li ntawd, tag nrho cov txheej txheem rwb thaiv tsev ntawm lub kaw lus yuav tsum muaj cov qauv dej pov thawj, thiab tsis muaj cov dej sib xyaw ua ke ntawm cov rwb thaiv tsev sib txuas kom tsis txhob cuam tshuam kev ua haujlwm rwb thaiv tsev los ntawm qhov chaw ntub dej.
Dab tsi yog qhov txawv ntawm tus qauv txawv teb chaws UIC insulated fastening systems thiab lub teb chaws tus qauv insulated systems?
Kev faib tawm qib rwb thaiv tsev ntawm cov txheej txheem txawv teb chaws UIC insulated fastening systems yog cov ncauj lus kom ntxaws, muab faib ua UIC A, B, thiab C qib, thaum lub teb chaws tus qauv tsuas muaj peb - theem kev faib tawm. Tus qauv UIC tuaj yeem hloov kho kom raug rau cov kab sib txawv ntawm qhov sib txawv. Cov txheej txheem insulating ntawm UIC yog ua los ntawm cov khoom siv polyimide, uas nws qhov siab - qhov kub thiab txias tuaj yeem ncav cuag 150 degree, deb tshaj li ntawm 120℃ntawm lub teb chaws tus qauv epoxy cov khoom, yoog mus rau siab - fais fab electrified kab. Cov txheej txheem rwb thaiv tsev ntawm UIC system yog nruj dua, yuav tsum dhau 10kV impulse tiv thaiv qhov ntsuas hluav taws xob, thaum lub teb chaws tus qauv Class III tsuas muaj 5kV fais fab zaus tiv taus hluav taws xob, nrog rau kev nyab xeeb dua. Hauv kev tsim qauv, cov khoom siv insulating ntawm UIC system yog modularly tsim thiab tuaj yeem hloov tau sai, thaum lub teb chaws tus qauv system feem ntau yog ib qho kev sib koom ua ke nrog kev kho tsis txaus. Tsis tas li ntawd, qhov rwb thaiv tsev lub neej ntawm UIC system tuaj yeem ncav cuag 30 xyoo, ntev tshaj li 20- xyoo lub neej ntawm lub teb chaws tus qauv, thiab tus nqi ntawm lub neej yog qis dua.
Yuav ua li cas insulated fastening systems tiv thaiv stray tam sim no los ntawm corroding lem?
Insulated fastening systems ua ntej cais cov tsheb ciav hlau los ntawm lub txaj khiav thiab cov neeg pw tsaug zog los ntawm cov khoom siv insulating, txiav tawm cov dej ntws tawm ntawm cov neeg tsis muaj zog tam sim no thiab tsis txhob ntws mus rau hauv lub txaj khiav mus rau corrode steel tuav. Lub rwb thaiv tsev cuam tshuam ntawm lub kaw lus muaj kev sib khi zoo heev, uas tuaj yeem tiv thaiv cov dej nag thiab daus los ntawm kev nkag mus rau hauv txoj kev coj mus thiab tswj kev ua haujlwm ruaj khov. Lub rwb thaiv tsev tiv thaiv ntawm lub insulated fastening system yog siab txaus los cuam tshuam cov conduction ntawm stray tam sim no, ua rau tam sim no ntws raws li preset rov qab channel yam tsis muaj to. Insulating Cheebtsam xws li insulating gauge blocks nyob rau hauv lub system muaj electrochemical corrosion kuj thiab yuav tsis tsim galvanic corrosion vim tam sim no to, thiab lawv cov kev pab cuam lub neej yuav tsis cuam tshuam. Tsis tas li ntawd, cov txheej txheem insulated fastening tuaj yeem koom tes nrog cov cuab yeej ntsuas tam sim no txhawm rau saib xyuas qhov xau tam sim no hauv lub sijhawm tiag tiag, thiab tuaj yeem ceeb toom ntxov thaum lub sijhawm rwb thaiv tsev tsis ua haujlwm, tiv thaiv kev taug qab corrosion ntawm ob qho tib si tiv thaiv thiab saib xyuas.
Vim li cas cov kab tsheb ciav hlau hauv nroog yuav tsum siv qib siab -qib insulated fastening systems?
Cov kab tsheb ciav hlau hauv nroog muaj cov tsheb ciav hlau ua haujlwm siab ceev thiab cov khoom siv hluav taws xob siab, thiab qhov tshwm sim ntawm cov tiam tam sim no muaj ntau dua li cov kev tsheb ciav hlau zoo tib yam. Yog li ntawd, yuav tsum muaj cov txheej txheem siab - qib rwb thaiv tsev los thaiv cov xau tam sim no. Feem ntau hauv nroog rail nthuav qhia kab yog cov kab hauv av nrog cov av noo thiab qhov cua tsis zoo. Insulating Cheebtsam yog nquag ya raws thiab kev laus. High-qib tshuab muaj zog dua noo noo thiab kev laus tiv thaiv thiab tuaj yeem tswj tau ntev - cov teebmeem rwb thaiv tsev. Lub teeb liab system ntawm nroog rail nthuav qhia kab yog qhov tsis tshua muaj siab rau kev cuam tshuam tam sim no. High-qib rwb thaiv tsev cov kab ke tuaj yeem zam dhau qhov tam sim no cuam tshuam nrog cov teeb liab kis tau tus mob thiab tiv thaiv lub tsheb ciav hlau tsis ua haujlwm xws li teeb liab tsis raug thiab chaw nres tsheb. Qhov chaw txij nkawm ntawm cov kab tsheb ciav hlau hauv nroog yog nqaim, thiab kev pabcuam lub neej ntawm qib siab -qib rwb thaiv tsev tshuab yog ntev dua, uas tuaj yeem txo qhov kev ua haujlwm ntawm kev hloov cov khoom siv insulating thiab txo qis kev tu ncua. Nyob rau tib lub sijhawm, cov kab tsheb ciav hlau hauv nroog muaj cov neeg caij tsheb nrawm thiab muaj kev nyab xeeb siab heev. High -qib rwb thaiv tsev tshuab tuaj yeem txo qhov kev nyab xeeb kev nyab xeeb los ntawm hluav taws xob.
Dab tsi yog cov ntsiab lus tseem ceeb ntawm ntawm -kev tu vaj tse rau cov kab hluav taws xob txuas?
Lub hauv paus ntawm - kev txij nkawm ntawm cov kab hluav taws xob txuas txuas ua ntej yuav tsum tsis tu ncua ntsuas cov rwb thaiv tsev. Lub ntsuas hluav taws xob tiv thaiv hluav taws xob yog siv rau kev tshuaj ntsuam xyuas txhua lub hlis twg kom ntseeg tau tias cov rwb thaiv tsev tsis muaj tsawg dua 80% ntawm tus nqi tsim. Yog tias nws qis dua tus qauv, cov khoom yuav tsum tau hloov raws sijhawm. Qhov zoo li lub xeev ntawm cov khoom siv insulating yuav tsum tau kuaj xyuas seb puas muaj qhov tsis xws luag xws li tawg, kev puas tsuaj, thiab carbonization, uas yuav ua rau muaj kev poob qis hauv rwb thaiv tsev. Thaum lub sij hawm tu, plua plav thiab roj stains nyob rau saum npoo ntawm cov khoom siv insulating yuav tsum tau ntxuav kom tsis txhob muaj kuab paug los ntawm kev tsim cov yeeb yaj kiab conductive thiab cuam tshuam rau cov nyhuv rwb thaiv tsev. Rau cov qauv kaw, kev laus ntawm lub sealing rubber strip yuav tsum tau kuaj xyuas, thiab cov roj hmab tsis ua haujlwm yuav tsum tau hloov lub sijhawm kom ntseeg tau tias kev sib khi ua haujlwm ntawm lub rwb thaiv tsev sib txuas. Tsis tas li ntawd, qhov kub ntawm insulating Cheebtsam yuav tsum tau saib xyuas. Yog hais tias qhov kub thiab txias tshwm sim, nws yuav tsum tau xyuas seb puas muaj rwb thaiv tsev laus los yog tam sim no to tiv thaiv kub los ntawm kev puas tsuaj rau lub rwb thaiv tsev system thiab xyuas kom meej kev ruaj ntseg ntawm cov hluav taws xob kab.