↵Rail Fishplate Fastening System
Daim ntawv tshaj tawm no muab cov lus qhia ntxaws ntxaws ntawm Railway Fishplate (joint bar), tsom mus rau lawvmechanical splice muaj nuj nqi, sib txawv subclassifications, thiab tsis ua hauj lwm kev kawm mechanics. Kev tsom xam txhob txwm zam kev sib tshooj nrog kev sib tham ua ntej txog kev sib tw elastic, ntsia hlau spikes, pob zeb pw tsaug zog, lossis cov qauv kev tsheb ciav hlau qhov ntev. Qhov tsom ntawm no yogtswv yim thiab txawv: insulated thaiv cov pob qij txha, kev sib haum xeeb tuav, glued los ua ke, thiab qaug zog- tsav tsheb hloov logic.
Technical Specifications:
| Ntses phaj hom | Rail Section Compatibility | Bolt Configuration | Distinct Visual Feature | Txheem / Specification | Common Mis -Kev xaiv |
|---|---|---|---|---|---|
| UIC Standard Fishplate | UIC54, UIC60 (qhov profile) | 4-qhov los yog 6-qhov | Symmetrical profile;nkhaus sab saum toj ntugtxuam rail lub taub hau kev hloov | UIC 864-3 / EN 16704 | Siv nrog AREMA rail -web thickness mismatch |
| AREMA Joint Bar | 115 Ib., 136 | 4-qhov los yog 6-qhov | Angled taub hau kev sib cuag; luv qhov siab tshaj UIC | AREMA Tshooj 4, ASTM A759 | Siv nrog UIC rail -bolt qhov sib txawv (5.5 "vs 140 mm) |
| Insulated Fishplate | Txhua ntu UIC/AREMA | 4-qhov los yog 6-qhov | Pom pom fiberglass / epoxy txheejnruab nrab ntawm bar thiab tsheb ciav hlau; xim kawg posts | TS EN 13146-5 / AREMA Ch. 33 | Standard bar ntsia -cim luv luv |
| Compromise Fishplate | UIC54 ↔ UIC60, UIC60 ↔ 136RE | 4-qhov los yog 6-qhov | Asymmetrical profile-Sab laug vs sab xis | Chaw tsim khoom kos duab; tsis muaj universal standard | Kev txiav txim los ntawm hom kev tsheb ciav hlau nkaus xwb (tsis pom kev hloov pauv) |
| Slotted / Expansion Fishplate | UIC54, UA 60 | Elongated qhov (4) | Oval bolt qhov; ntev bar ntev | Tus choj engineer specification | Txheem bar ntsia tau -thermal txav txwv |
Performance Range:
Insulated Block Joints (Signal Section Isolation):
Yuav tsum tau raukhiav Circuit Court demarcation. Fishplates nrog epoxy-bonded fiberglass / PA66 rwb thaiv tsev txheej hluav taws xob cais cov rail seem thaum tswj kev ua haujlwm txuas ntxiv. Tsis yog-cov pob qij txha insulated yuav luv luv-circuit signaling, ua rau muaj neeg nyob tsis tseeb thiab muaj kev sib tsoo.
Compromise Joints (Kev hloov pauv ntawm Rail Sections):
Yuav tsum tau nyob qhov twgsib txawv rail profiles ntsib-UIC54 rau UIC60, UIC60 rau AREMA 136RE, los yog tshiab los hnav rail. Compromise fishplates muaj asymmetrical bolt qhov sib nrug thiab profiled rail rooj kom phim qhov sib txawv web thicknesses thiab lub taub hau qhov siab. Tsis muaj lwm txoj kev sib koom ua ke kom haum rau cov seem sib xyaw.
Kev Saib Xyuas & Kev Pom Kev Ua Haujlwm
- Corrosion Wastage (Coastal & Immersion Zones):
Plain fishplates (uncoated) nthuav tawm0.10-0.20 hli / xyoo zoo corrosion. Pitting tus nqi: 0.25-0.40mm / xyoo. Kev hloov pauv tshwm sim thaumsection loss >20%ntawm bolt qhov ( ntsuas los ntawm ultrasonic thickness gauge). Kev pom kev xeb tsis yog qhov kev rau txim rau kev ntsuas -Internal zais corrosion dictates 60% ntawm kev hloov.
- Bolt Tension Relaxation (Lub Limtiam Re-Torquing):
Fishplate bolts (M22–M24, qib 8.8/10.9) poob10-15% clamp quab yuam ib lub lim tiamhauv qab tsheb. Re-torquing lub caij:txhua 7-14 hnub on >20 MGT kab. Specification ntawm Torque:450-550 Nm (UIC 864-7). Impact wrenches prohibited-risk of thread galling. Progressive relaxation >30% ua rau kev hloov bolts.
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