Hauj lwm lawm
Kev tsis
Rail thiab Spike Fastening System
CovRailway E-Clipyog ib lub caij nplooj ntoos hlav steel fastening tivthaiv txawv los ntawm nws peb -pronged "E" silhouette, engineered kom ruaj rails rau pw tsaug zog los ntawm precision- tswj elastic deflection hla ntau yam kev sib cuag. Tsim los ntawm qib siab -qib caij nplooj ntoos hlav steel alloys suav nrog 60Si2MnA, 51CrV4, thiab Ck75 (DIN 17222) nrog cov ntsiab lus carbon ntawm 0.58–0.75%, cov clips no ua tiav los ntawm-hardness ntawm 42–47 HRC ntawm cov roj quenching thiab tempering
Technical Specifications:
| Parameter | Standard Duty | Qib hwm | Hnyav-Haul Qib | Siab -Speed Grade | Qib Arctic |
|---|---|---|---|---|---|
| Khoom Qib | 55 ib 7 | 60 Si2MnA | 60 Si2CrA | 60 Si2CrVA | 51cwv 4 |
| Tempering qhov kub | 450℃± 15 degree | 440℃± 12 degree | 430℃± 10 degree | 420℃± 10 degree | 470℃± 12 degree |
| Tempering Sijhawm | 60 feeb | 75 feeb | 90 feeb | 90 feeb | 60 feeb |
| Ua tiav Hardness | 41–44 HRC | 43–46 HRC | 45–48 HRC | 46–49 HRC | 40–43 HRC |
Installation & Maintenance Perspective:
- Peb -Kinematic Qhov Chaw:Cov clip peb lub ntsiab lus sib cuag -ob ntawm txoj kab tsheb ciav hlau thiab ib qho ntawm lub hauv paus-tsim ib qho kev txiav txim siab kinematically uas ua kom pom tseeb ntawm txoj kev tsheb ciav hlau tsis dhau - txwv, ua kom thermal expansion yam tsis tsim cov kab mob parasitic .
- Hertzian Contact Pressure Distribution:Ntawm txhua qhov kev sib cuag, elliptical siab distributions tsim raws li Hertz txoj kev xav, nrog kev sib cuag siab tshaj plaws ntawm 300-500 MPa- hauv qab 600 MPa yield pib pib ntawm rail hlau, kom ntseeg tau tias elastic cwj pwm thoob plaws hauv kev pabcuam.
- Frictional zog Dissipation:Nyob rau hauv lub voj voog loading, micro- plam ntawm kev sib cuag interfaces dissipates 3-5% ntawm cov khoom siv hluav taws xob los ntawm kev sib txhuam, ua rau lub cev damping yam tsis ua rau ntsuas hnav ntau dua lab lub voj voog.
Kev Saib Xyuas & Kev Pom Kev Ua Haujlwm
- Quench Medium Xaiv:Cov roj quenching ntawm 50-80℃/ thib ob qhov txias txias ua rau cov lath martensite zoo nrog qhov zoo tshaj plaws hardness (44-48 HRC) thaum txo qis distortion thiab residual stress piv rau dej quenching.
- Tempering Parameter Optimization:Tempering ntawm 430-470℃rau 60-90 feeb tso cai rau cov pa roj carbon diffusion kom txo qis thaum tuav lub zog tensile, nrog Hollomon-Jaffe parameter (P=T(20 + log t))) siv los kwv yees cov khoom kawg hauv ± 3% kam rau ua .
- Grain Boundary Engineering:Microalloying nrog vanadium (0.05-0.15%) los yog niobium (0.02-0.05%) tsim cov carbides zoo uas tus pin grain ciam ciam thaum lub sij hawm austenitization, ua tiav ASTM grain loj 9-11 rau kev txhim kho qaug zog.
Gnee Professional tsum
Cim npe nrov: railway steel rails e clips, Tuam Tshoj railroad railway steel rails e clips manufacturers, lwm tus neeg, Hoobkas
