Vim li cas Rail Pad tseem ceeb
Lub rail ncoo hloov lub log load los ntawm kev tsheb ciav hlau ko taw mus rau lub sleeper los yog slab, thiab nws cov khoom txiav txim siab npaum li cas ntawm cov load mus txog qhov kev txhawb nqa raws li kev cuam tshuam. Lub ncoo kom yog damps lub dynamic overload los ntawm lub log flats thiab pob qij txha, kis lub siab kom lub pob zeb pw tsaug zog nto tsis tawg los yog abrade, thiab tiv thaiv cov tsheb ciav hlau ko taw los ntawm crushing. Lub ncoo tseem muab ib feem loj ntawm txoj kab ntsug elasticity ntawm lub kaw lus fastening, uas cuam tshuam rau kev caij tsheb zoo thiab taug qab lub neej, thiab nws ua raws li hluav taws xob rwb thaiv tsev ntawm kev tsheb ciav hlau thiab pw tsaug zog rau kev khiav lag luam hauv Circuit Court. Pads yog cov khoom siv tau txais txiaj ntsig: lawv muaj hnub nyoog nyob rau hauv compression, kub thiab ib puag ncig tawm tsam, thiab lub ncoo hnav hloov qhov nruj ntawm tag nrho cov fastening system. Kev xaiv yog li ntawd tsis yog ib phau ntawv tom qab tab sis kev txiav txim siab tsim qauv.
Txuas lub ncoo rau Rail Section thiab Fastening System
Thawj kauj ruam yog kom paub cov kev tsheb ciav hlau profile thiab lub fastening system hom, vim hais tias lub ncoo hneev taw yuav tsum haum lub tsheb ciav hlau ko taw dav thiab lub xub pwg geometry ntawm lub hauv paus phaj. Feem ntau cov profiles yog 43, 50, 60 thiab 75 kg / m GB rails, UIC54 thiab UIC60, 115RE, S49 thiab BS teeb rail series. Lub ncoo ntev thiab dav ua raws li txoj kev tsheb ciav hlau, thiab lub ncoo thickness ua raws li kev tsim cov txheej txheem fastening thiab qhov xav tau ntsug ntsug. Hom codes xws li 43-7-7, 50-10-9 thiab 60-10-17 encode lub tsheb ciav hlau loj thiab cov ntaub qhwv tuab, thiab cov chaw tsim khoom fastening qhia tau hais tias lub ncoo yog nyob rau hauv qhov system. Ib lub ncoo uas me dhau ua rau lub siab ntawm txoj kev tsheb ciav hlau; ib tug uas loj heev jams tiv thaiv lub xub pwg nyom. Tom qab kev teeb tsa thaj chaw sib cuag hauv qab txoj kev tsheb ciav hlau yuav tsum yog tsawg kawg 90 feem pua ntawm cov tsim interface, txwv tsis pub lub zos siab nce thiab cov ntaub qhwv thiab pw tsaug zog sai.
Kev xaiv khoom
| Khoom siv | Hom hardness | Lub zog | Zoo tshaj plaws |
|---|---|---|---|
| Natural roj hmab NR | Ntug A 60 txog 80 | Zoo damping thiab qaug zog, tsis tshua muaj nqi | Txheem cov kab tseem ceeb, kev sib xyaw ua ke |
| EVA | Ntug A 70 txog 95 | Nyuaj, dimensionally ruaj khov, ozone resistant | Lub teeb thiab nruab nrab kev khiav tsheb, kev lag luam pads |
| TPE | Ntug D 40 txog 60 | Siab zog, dav kub ntau, nkag resistant | High- kab ceev, hnyav loads, qis- cheeb tsam kub |
| HDPE | Ntug D 60 txog 70 | Nyuaj heev, tsis muaj kev sib txhuam, tshuaj resistant | Heavy-haul thiab kev lag luam khiav qhov chaw nruj dominates |
Softer pads muab ntau damping thiab suab nrov txo, tab sis ntau dua dynamic deflection thiab ceev creep. Stiffer pads tuav geometry zoo dua thiab haum rau lub nra hnyav tab sis xa ntau dua kev co. High- cov kab ceev feem ntau nyiam ib qho tawv polyurethane lossis TPEE ncoo los tswj kev sib haum xeeb, thaum lub nroog thiab cov tsheb ciav hlau xaiv cov roj hmab softer rau lub suab nrov thiab kev co. Yog hais tias tus neeg muag khoom muab cov ntaub ntawv hloov pauv, thov kom cov ntaub ntawv khov kho, damping thiab aging test, tsis yog lub ntug hardness xwb.
Hardness, Thickness thiab Groove Design
Hardness yog thawj qhov kev tswj xyuas ntawm qhov tawv tawv: feem ntau cov ntaub qhwv roj hmab tau teev nyob nruab nrab ntawm Shore A 60 thiab 90, thiab qhov kev lees paub qhov system fastening test txhais tau qhov yuav tsum tau ua kom zoo li qub thiab tsis muaj zog es tsis yog hardness ib leeg. Thickness hloov lub peev xwm deflection thiab rwb thaiv tsev kev ua tau zoo, thiab nws yog ib qho ntawm kev hloov kho levers rau kev taug qab geometry. Grooves nyob rau saum npoo muab lub ncoo nws elasticity qauv, tso cai rau dej thiab av kom dim, thiab hloov lub load kis tau tus mob, thaum ib tug dawb hauv qab lub ntsej muag ua rau lub sleeper interface ruaj khov. Qee lub tshuab siv cov ntaub qhwv ntsej nrog lub ntsej muag los yog lub taub hau uas koom nrog lub hauv paus phaj, thiab cov ntaub qhwv yuav tsum phim cov phaj tsim raws nraim. Order pads nrog rail profile, fastening system hom, hardness, thickness thiab groove layout teev, thiab paub meej tias daim duab ua ntej loj ntau lawm.
Cov qauv, ib puag ncig thiab cia
Suav rail pads rau qhob pw tsaug zog yog them los ntawm TB / T 2626, kev ua tau zoo ntawm lub ncoo nyob rau hauv ib tug fastening system yog xyuas raws li EN 13481 thiab UIC 864, thiab cov kev khiav hauj lwm kub ntawm cov qauv pads feem ntau yog los ntawm rho 50 mus rau ntxiv 70 degrees Celsius. Hauv cov chaw sov thiab cov chaw ntug dej hiav txwv xaiv ib qho kev tsim nrog ozone thiab UV tsis kam, thiab paub meej tias cov tshuaj tsuag ntsev. Kev khaws cia tseem ceeb npaum li kev tsim tawm: cov ntaub qhwv yuav tsum tau khaws cia rau hauv qhov chaw huv si, qhov cua tawm ntawm lub hnub ncaj qha, nyob deb ntawm qhov chaw sov, thiab tiv thaiv cov roj, cov kuab tshuaj thiab tshuaj lom neeg. Roj hmab tawm tsam los ntawm ozone lossis roj tawg ntawm qhov chaw thiab poob qhov tawv nqaij tsis pub dhau lub hlis, yog li cov cai khaws cia yog ib feem ntawm cov kev qhia tshwj xeeb, tsis yog cov lus hauv qab.
Daim ntawv txheeb xyuas khoom
Qhia cov rail profile thiab fastening system hom ntawm kev nug.
Qhia cov khoom, hardness, thickness, zawj thiab nrhiav cov yam ntxwv los ntawm kev kos duab.
Thov daim ntawv tshaj tawm kev xeem nruj thiab daim ntawv pov thawj khoom siv rau txhua pawg.
Paub meej tias qhov kev khiav hauj lwm kub thiab qhov ozone thiab UV tsis kam rau qhov chaw.
Txhais cov cai ntim khoom thiab khaws cia ntev ntev - xa khoom xa tuaj.
Ib lub ncoo puas haum rau ntau qhov kev tsheb ciav hlau?
Tsis yog. Lub ncoo hneev taw ua raws li txoj kab tsheb ciav hlau dav dav thiab lub hauv paus phaj geometry. Lub ncoo ua rau UIC54 yog qhov sib txawv ntawm ib qho rau UIC60, thiab yuam lub ncoo kom haum rau txoj kev tsheb ciav hlau tsis raug tawm ntawm qhov siab thiab qhov khoob.
Roj hmab, TPEE lossis HDPE, qhov twg zoo dua?
Tsis muaj cov khoom siv zoo tshaj plaws universal. Cov roj hmab ntuj muab qhov zoo tshaj plaws damping rau ib chav tsev nqi, TPEE muab lub zog nrog ntau qhov kub thiab txias rau siab - siv ceev, thiab HDPE raug xaiv qhov siab tshaj plaws nruj thiab tshuaj tiv thaiv. Muab cov khoom siv rau cov kab mob.
Dab tsi hardness ntau npaum li cas rau rail pads?
Feem ntau cov ntaub thaiv kev tsheb ciav hlau tau teev nyob nruab nrab ntawm Shore A 60 thiab 90, nrog siab -ceev ceev feem ntau siv cov tawv tawv TPEE lossis polyurethane pads. Lub fastening system lees txais kev xeem txhais cov kev xav tau nruj, thiab hardness tsuas yog thawj qhov taw qhia.
Kuv yuav ua li cas thiaj paub tseeb tias lub ncoo haum zoo?
Nruab lub ncoo nyob rau hauv txoj kev tsheb ciav hlau thiab xyuas qhov chaw tiv tauj tom qab zawm. Qhov chaw sib cuag hauv qab txoj kev tsheb ciav hlau yuav tsum yog tsawg kawg 90 feem pua ntawm cov qauv tsim, tsis muaj qhov khoob ntawm cov npoo thiab tsis muaj kev cuam tshuam nrog lub ntsuas lub xub pwg.
Yuav ua li cas rail pads yuav tsum tau khaws cia ua ntej installation?
Khaws lawv nyob hauv qhov chaw huv, qhov cua, kom deb ntawm tshav ntuj ncaj qha, qhov chaw tshav kub, qhov chaw ozone thiab tshuaj lom neeg. Tsis txhob sib cuag nrog cov roj thiab cov kuab tshuaj, thiab tsis txhob muab tso rau hauv siab kom cov ntaub qhwv hauv qab deform mus tas li.
Puas rail pads cuam tshuam cov kab hluav taws xob hluav taws xob?
Yog lawm. Lub ncoo yog ib feem ntawm cov hluav taws xob rwb thaiv tsev ntawm kev tsheb ciav hlau thiab pw tsaug zog. Txheeb xyuas qhov kev tiv thaiv kev tiv thaiv kev tiv thaiv ntawm lub teeb liab qhov system thiab xaiv cov ntaub qhwv ntsej muag uas tuav nws hla lub ncoo kev pab cuam lub neej, tshwj xeeb tshaj yog nyob rau hauv ntub dej.