Rail Pad Vibration Damping thiab Thickness Xaiv Technology
Dab tsi yog cov txheej txheem tseem ceeb ntawm cov ntaub ntawv taug qab thiab lawv cov xwm txheej tsim nyog?
Cov ntaub qhwv cov ntaub qhwv tau muab faib ua tsib yam khoom tseem ceeb: cov ntaub qhwv roj hmab, cov ntaub qhwv sib xyaw, hnav- cov ntaub qhwv cov ntaub qhwv, cov ntaub qhwv ntaub, thiab cov ntaub qhwv sab nraud. Txhua hom muaj qhov sib txawv vibration damping, hnav tsis kam, thiab rwb thaiv tsev, ua rau lawv haum rau ntau yam xwm txheej. Roj hmab pads yog hom tseem ceeb siv nyob rau hauv high - tsheb ciav hlau ceev. Ua los ntawm cov khoom siv elastic heev, lawv cov dynamic- rau- qhov sib txawv ntawm qhov tawv nqaij yog tsawg dua lossis sib npaug li 2.0, muab kev co zoo heev thiab txo suab nrov, ua rau lawv haum rau qhov siab - zaus vibration tej yam kev mob ntawm ballastless high - rail rail. Composite pads yog hom qauv siv hauv cov pa tsheb ciav hlau. Lawv cov roj hmab + steel phaj sib xyaw cov qauv muaj kev nruj nruj thiab muaj zog hnav tsis kam, ua rau lawv tsim nyog rau kev sib tsoo cov pa tsheb ciav hlau, muab tus nqi - ua tau zoo thiab kav ntev. Hnav- cov ntaub qhwv resistant yog tsim tshwj xeeb rau kev siv mining thiab kev lag luam. Ua los ntawm polyurethane nrog hnav- cov khoom tiv taus, lawv tiv taus kev sib tsoo thiab hnav, haum rau hnyav- thauj khoom hauv cov mines thiab cov chaw nres nkoj, ncua lawv lub neej kev pab los ntawm 2 zaug. Insulating pads muaj ib txheej insulating, haum rau siab - ceev rail khiav circuits, nrog ib tug rwb thaiv tsev tiv thaiv ntau tshaj los yog sib npaug zos rau 5 × 10 ^ 6Ω, tiv thaiv khiav conductivity faults. Cov txheej txheem kev tsheb nqaj hlau sab nraud muaj nyob rau hauv UIC / BS qauv, sib xws nrog cov qauv kev sib txuas sab nraud, thiab lawv qhov ntev thiab tuab ua raws li cov qauv thoob ntiaj teb.
Dab tsi yog qhov tseem ceeb thickness specifications thiab xaiv cov ntsiab lus tseem ceeb rau rail pads?
Rail pads tuaj nyob rau hauv tsib lub thicknesses: 5mm, 8mm, 10mm, 12mm, thiab 15mm. Lub thickness txiav txim siab qhov kev vibration damping nyhuv thiab rail qhov siab hloov; kev xaiv yuav tsum yog raws li cov kev xav tau tshwj xeeb thiab yuav tsum tsis txhob nce lossis txo qis . 5mm / 8mm nyias pads yog tsim rau siab -ceev tsheb ciav hlau / cov qauv kev tsheb ciav hlau, nrog kev sib haum me me uas tsis tas yuav tsum tau hloov qhov siab, ua tau raws li cov kev xav tau ntawm kev co damping, thiab yog cov ntsiab lus tseem ceeb . 10mm / 12} qhov nruab nrab qhov nruab nrab yog qhov nruab nrab 8 Kev sib haum xeeb, sib txuas cov kev vibration damping thiab qhov siab hloov ua haujlwm, them nyiaj rau 1-3mm ntawm kev sib haum xeeb thiab ua kom cov kev sib haum xeeb. 15mm tuab pads yog haum rau hnyav-load industrial thiab mining / hnyav kev sib haum xeeb seem, nrog rau qhov siab hloov kho siab dua los yog sib npaug rau 5mm, tiv thaiv kev thauj khoom hnyav thiab sib npaug ntawm 5mm. Lub thickness ntawm lub rail ncoo yuav tsum tau sib phim rau cov rail specifications. High- kev tsheb ciav hlau ceev siv 5-8mm roj hmab ncoo, cov pa tsheb ciav hlau siv 8-10mm composite pads, thiab kev lag luam thiab mining rails siv 10-15mm hnav-resistant pads. Lub thickness yuav tsum precisely sib haum mus rau daim ntawv thov scenario.
Dab tsi yog qhov tseem ceeb ntawm kev ua tau zoo thiab cov qauv tshuaj xyuas zoo rau cov tsheb ciav hlau?
Cov kev qhia tseem ceeb ntawm cov tsheb ciav hlau muaj xws li qhov tawv nqaij zoo li qub, dynamic - rau - zoo li qub stiffness piv, Shore hardness, hnav tsis kam, thiab rwb thaiv tsev tsis kam. Ua kom tau raws li cov qauv no yog qhov yuav tsum tau ua ua ntej rau kev siv cov khoom siv tsheb ciav hlau; tsis muaj leej twg yuav raug tshem tawm. Rubber pads muaj qhov tawv tawv zoo li qub ntawm 60 ± 10kN / mm, dynamic - rau - zoo li qub stiffness ratio Tsawg dua lossis sib npaug li 2.0, Shore hardness ntawm 65 ± 5HA, elasticity zoo heev, thiab txaus siab rau kev poob siab. Composite pads muaj hnav tsis kam Tsawg dua los yog sib npaug rau 0.1cm³ / 1.61km, tensile zog Ntau dua los yog sib npaug rau 8MPa, lub zog tsim kua muag Ntau dua los yog sib npaug rau 25kN / m, thiab tiv taus deformation nyob rau hauv dov siab. Insulating pads yuav tsum muaj kev tiv thaiv kev tiv thaiv ntau dua lossis sib npaug ntawm 5 × 10 ^ 6Ω, tiv taus hluav taws xob ntau dua lossis sib npaug rau 3000V, thiab tsis muaj kev puas tsuaj thiab xau, ua kom muaj kev nyab xeeb siv hauv kev sib tw khiav. Tag nrho cov ntaub qhwv yuav tsum dhau qhov kev ntsuam xyuas kev laus, tsis pom kev tawg lossis tawv tom qab 72 teev ntawm 70℃thiab tsis muaj brittleness ntawm -40 degree, hloov mus rau ntau qhov chaw huab cua.
Dab tsi yog cov ntsiab lus tseem ceeb thiab kev tiv thaiv kev tsim kho rau kev txhim kho cov ntaub ntawv taug qab?
Ua ntej kev teeb tsa, xyuas tias cov ntaub qhwv tsis muaj kev puas tsuaj, tsis muaj qhov tsis zoo, thiab tsis muaj roj stains. Paub meej tias cov ntaub ntawv tuab yog sib npaug ntawm cov kev khiav haujlwm kom tsis txhob txhim kho cov ntaub ntawv tsis raug lossis tsis yog - cov ntaub ntawv ua raws. Thaum lub sij hawm installation, muab lub ncoo nyob nruab nrab ntawm lub sleeper thiab lub tsheb ciav hlau, tag nrho npog hauv qab ntawm txoj kev tsheb ciav hlau tsis muaj offset los yog qhov khoob, kom ntseeg tau tias lub load yog sib npaug zos rau cov neeg pw tsaug zog. Rau siab - kev tsheb ciav hlau ceev, xyuas kom lub insulating sab ntawm lub ncoo sab saum toj, lub rwb thaiv tsev txheej tsis muaj kev puas tsuaj, thiab cov rwb thaiv tsev tiv thaiv ua tau raws li cov qauv tom qab kev teeb tsa los tiv thaiv kev ua txhaum cai. Rau cov pa tsheb ciav hlau / mining rail, ntxuav qhov chaw pw tsaug zog, ua kom lub ncoo haum snugly tiv thaiv tus neeg pw tsaug zog tsis muaj qhov khoob los tiv thaiv kev ntxhov siab tsis sib xws ntawm txoj kev tsheb ciav hlau los ntawm warping npoo. Tom qab kev teeb tsa, xyuas tias cov ntaub ntawv taug qab tsis pub muaj wrinkles thiab detachment, tias cov ntsia hlau tau ruaj khov tsis muaj kev co, thiab qhov sib nrug ntawm cov ntaub ntawv taug qab raws tag nrho cov kab khiav yog sib xws nrog qhov yuam kev tsawg dua lossis sib npaug li 5 hli. Tsuas yog tom qab dhau kev soj ntsuam tuaj yeem siv tau.
Dab tsi yog qhov ua yuam kev thiab kho / hloov kev ntsuas rau cov ntaub qhwv thaum siv?
Feem ntau ua txhaum hauv kev siv lub ncoo muaj xws li hnav thiab tsim kua muag, elasticity poob, ntug warping thiab detachment, rwb thaiv tsev tsis ua hauj lwm, thiab kev laus cracking. Tag nrho cov no cuam tshuam rau kev poob siab absorbing thiab locking nyhuv thiab yuav tsum tau hloov raws sij hawm. Yog tias cov ntaub thaiv npog tau hnav lossis puas los ntawm Ntau dua lossis sib npaug ntawm 3 hli, ua rau kev sib cuag ncaj qha ntawm txoj kev tsheb ciav hlau thiab cov neeg pw tsaug zog nrog kev sib txhuam nyuaj, tam sim ntawd hloov nws nrog cov ntaub ntawv tshiab ntawm tib lub ntsiab lus. Rau qhov hnyav- ntu thauj khoom, hloov kho kom hnav- cov ntaub qhwv resistant kom txo tau hnav. Elasticity poob manifests raws li ib tug txo nyob rau hauv shock absorption thiab nce khiav suab nrov. Hloov nrog siab -elasticity roj hmab taug qab pads thiab xyuas seb cov kev khiav tsheb khiav dhau tus qauv, ua rau poob. Ntug warping thiab detachment ntawm cov ntaub ntawv taug qab yog vim kev teeb tsa tsis zoo lossis cov neeg pw tsaug zog tsis sib xws. Reinstall cov ntaub qhwv hauv qhov chaw nruab nrab, theem ntawm qhov chaw pw tsaug zog, thiab ntxiv cov khoom kho kom tsis txhob muaj kev sib cais. Kev rwb thaiv tsev tsis ua haujlwm yog vim cov txheej txheem rwb thaiv tsev puas. Hloov nrog cov ntaub thaiv insulating, sim cov rwb thaiv tsev tiv thaiv kom ntseeg tau tias nws ua tau raws li tus qauv, thiab tiv thaiv kev ua haujlwm tsis ua haujlwm. Kev laus thiab tawg yog tshwm sim los ntawm huab cua aging. Hloov nrog lub ncoo tshiab. Hauv thaj chaw ntug dej hiav txwv / qhov txias txias, xaiv huab cua- tiv thaiv lub ncoo kom ntev nws lub neej kev pab.