Dab tsi Rail Pads Ua hauv Sleeper Assembly
Rail pads yog elastic lev, feem ntau yog polyurethane los yog roj hmab, muab tso rau ntawm txoj kev tsheb ciav hlau thiab cov neeg pw tsaug zog lossis khi. Lawv nqus cov kev vibration, txo cov suab nrov, tiv thaiv kev puas tsuaj thiab crushing ntawm lub sleeper nto, thiab faib lub log loads nyob rau hauv lub sleeper, txhim khu kev khiav durability, stability thiab kev nplij siab neeg caij tsheb. Lub ncoo ua raws li kev poob siab absorber nyob rau hauv lub fastening system: nws muaj qis pib nruj kom cov tsheb ciav hlau zaum rau hauv tag nrho cov kabmob, ces siab dua nruj nyob rau hauv load kom lub tsheb ciav hlau ruaj khov. Los ntawm softening hloov ntawm lub log loads mus rau hauv lub sleeper thiab ballast, lub ncoo ncua lub neej ntawm tag nrho cov qauv khiav, nrog rau cov ballast.
Lub luag haujlwm tseem ceeb ntawm Railway Pads
Kev vibration thiab suab nrov dampening: lub ncoo absorbs poob siab thiab txo cov qauv- ua suab nrov los ntawm cov tsheb ciav hlau hla, uas yog ib qho tseem ceeb hauv qhov av thiab ntawm cov choj. Hnav tiv thaiv: nws tiv thaiv puas thiab crushing ntawm lub sleeper nto nyob rau hauv lub tsheb ciav hlau ko taw. Load faib: nws kis tau qhov hnyav dynamic loads los ntawm lub log ntau tusyees thoob plaws lub sleeper. Hluav taws xob rwb thaiv tsev: nyob ntawm seb hom, nws muab hluav taws xob sib cais ntawm txoj kev tsheb ciav hlau thiab cov neeg pw tsaug zog. Taug qab resilience: nws ua rau kom cov elasticity thiab resilience ntawm txoj kev khiav, kom lub geometry rov qab los ntawm txhua lub voj voog load es tsis txhob nyob mus ib txhis.
Cov ntaub ntawv thiab hom Rail Pads
Rail pads yog tsim los ntawm cov ntaub ntawv elastic xws li polyurethane, roj hmab ntuj, chloroprene roj hmab, EVA, HDPE thiab TPEE. Ob hom tseem ceeb yog nyob rau hauv - tsheb ciav hlau pads, haum nruab nrab ntawm txoj kev tsheb ciav hlau thiab lub hauv paus, thiab hauv qab - pw tsaug zog pads, haum rau hauv qab tag nrho cov pw tsaug zog ntxiv rau kev tiv thaiv ballast. Lub ntsej muag lub ntsej muag feem ntau yog tsim los ntawm cov grooves uas muab lub ncoo nws qhov tshwj xeeb thauj khoom - tus yam ntxwv deflection: qis qis qis rau qhov rooj zaum zoo thiab siab siab siab rau kev txhawb nqa ruaj khov. Pads tuaj yeem kho nrog lossis tsis muaj grooves thiab hauv ntau qhov qauv tsim kom haum rau ntu kev tsheb nqaj hlau, suav nrog UIC54, UIC60, BS80lbs thiab BS100lbs rails, thiab qhov ntev yog tsim rau kev txiav txim kos duab.
Technical Parameters ntawm Roj Hmab, HDPE thiab EVA Pads
Cov txheej txheem tsis zoo ntawm cov roj hmab rail pad yog muab hauv qab no. Cov txiaj ntsig no txhais cov tawv tawv, hardness thiab hluav taws xob tus cwj pwm uas tus tsim fastening xav tias.
| Technical Parameter | Chav tsev | Tus nqi |
|---|---|---|
| Kev nruj | kN kev | 90-130 |
| Hardness Ntug A | degree | 72-80 |
| Hluav taws xob tsis kam | Ω | Ntau dua lossis sib npaug li 10⁶ |
| Tensile lub zog ua ntej kev laus | MPa | Ntau dua lossis sib npaug rau 12.5 |
| Elongation ua ntej kev laus | % | Ntau dua lossis sib npaug li 250 |
Thermoplastic pads yog teev nrog ceev, txhua yam thiab hluav taws xob muaj nuj nqis. HDPE ncoo muab siab hardness thiab rwb thaiv tsev rau hnyav loads, thaum lub EVA ncoo, ua nrog 80% polyethylene thiab 20% vinyl acetate, muab siab elongation.
| HDPE Parameter | Chav tsev | Kev xav tau |
|---|---|---|
| Qhov ntom | g/cm³ | 0.95-0.98 |
| Lub zog tensile | MPa | Ntau dua lossis sib npaug rau 19 |
| Elongation | % | >80 |
| Melting point | degree | 170-190 |
| Rwb thaiv tsev tsis kam | Ω | Ntau dua lossis sib npaug rau 1 × 10¹⁰ |
| Hardness | A | Ntau dua lossis sib npaug li 98 |
| EVA Parameter | Chav tsev | Kev xav tau |
|---|---|---|
| Qhov ntom | g/cm³ | 0.95-0.98 |
| Lub zog tensile | MPa | Ntau dua lossis sib npaug li 15 |
| Elongation | % | >500 |
| Melting point | degree | 170-190 |
| Rwb thaiv tsev tsis kam | Ω | Ntau dua lossis sib npaug rau 1 × 10¹⁰ |
| Hardness | A | Ntau dua lossis sib npaug li 90 |
Kev Tswj Xyuas Zoo hauv Rail Pad Production
Rail pad ntau lawm ua raws li cov ntaub ntawv zoo. Rau kev tshuaj xyuas thiab kev soj ntsuam cov ntaub ntawv raw, cov batch naj npawb ntawm cov khoom, tshuaj muaj pes tsawg leeg, mechanical zog thiab lwm yam kev ntsuas ntsuas tau sau tseg rau txhua cov khoom tuaj. Cov neeg soj ntsuam zoo siv cov qauv coj mus kuaj, batch kuaj thiab muab cov ntaub ntawv pov thawj raw khoom. Raws li cov kev xav tau sib txawv ntawm cov khoom, cov kev kuaj lub cev thiab tshuaj lom neeg raug coj los ua, thiab txhua qhov kev tshwm sim uas tsis ua raws li qhov yuav tsum tau ua ua rau tsis lees txais cov batch. Tsuas yog cov khoom siv uas dhau tus qauv raug lees txais, yog li cov ntaub qhwv xa mus rau txoj kev taug qab muaj qhov tseeb nruj, hardness thiab rwb thaiv tsev ua haujlwm.
Cov lus nug nquag
Dab tsi yog qhov txawv ntawm ib qho hauv qab -rail ncoo thiab hauv qab - pw tsaug zog ncoo?
Ib qho hauv qab -rail ncoo zaum ntawm lub tsheb ciav hlau ko taw thiab lub hauv paus los yog pw tsaug zog thiab tuav lub log ncaj qha. Ib qho hauv qab - lub txaj pw tsaug zog zaum hauv qab tag nrho cov neeg pw tsaug zog thiab tseem tiv thaiv lub ballast, kis cov khoom ntxiv rau hauv lub txaj khiav.
Vim li cas pads muaj grooves ntawm qhov chaw?
Grooves muab lub ncoo nws ob -theem load-deflection cwj pwm: cov tav deform ntawm qis load rau tag nrho cov rooj zaum thiab tom qab ntawd stiffen nyob rau hauv siab load. Cov qauv groove yog ib feem ntawm qhov nruj specification ntawm lub ncoo.
Tus nqi hardness dab tsi txhais tau hais tias roj hmab rail ncoo?
Ib qho roj hmab rail ncoo muaj Shore A hardness ntawm 72-80. Lub hardness correlates nrog lub ncoo txhav tab sis tau txheeb xyuas ua ke nrog cov tawv tawv thiab cov hluav taws xob tiv thaiv qhov tseem ceeb hauv cov lus qhia.
Lub rwb thaiv tsev ntawm lub ncoo pov thawj li cas?
Lub ncoo yog kuaj rau cov rwb thaiv tsev tiv thaiv, piv txwv li Ntau dua lossis sib npaug ntawm 10⁶Ω rau cov ntaub qhwv roj hmab thiab Ntau dua lossis sib npaug rau 1 × 10¹⁰Ω rau HDPE thiab EVA pads. Qhov kev sim ua tiav ntawm cov khoom tiav ua ntej lub ncoo tso tawm.
Cov ntaub qhwv puas tuaj yeem tsim rau kev kos duab?
Yog lawm. Pads yog tsim raws li cov duab kos los yog cov qauv, nrog rau qhov ntev, zawj qauv thiab cov khoom xaiv kom haum rau cov kab tsheb ciav hlau thiab cov hlua khi, xws li UIC54, UIC60, BS80lbs lossis BS100lbs rails.
Yuav ua li cas yog ib tug pad batch tsis kam nyob rau hauv kev tswj zoo?
Txhua batch yog kuaj thiab sim tawm tsam qhov yuav tsum tau muaj lub cev thiab tshuaj ntsuas ntsuas. Yog tias cov txiaj ntsig tsis tau raws li qhov yuav tsum tau ua, batch raug tsis lees paub kom tsuas yog tus qauv -cov ntaub ntawv raug xa mus rau tus neeg siv khoom.