Type WJ-8 Rail Fastening System(Rail Fastener) for High-Speed Railroad Track Fixing
Type WJ-8 Rail Fastening System is a ballastless track fastener system developed to meet the technical requirements of the passenger dedicated line fastener system and to adapt to the laying of the existing shoulder-free ballastless track in Germany.
Type WJ-8 Rail Fastening System is a ballastless track fastener system developed to meet the technical requirements of the passenger dedicated line fastener system and to adapt to the laying of the existing shoulder-free ballastless track in Germany.
Type WJ-8 Rail Fastening System (also called Type WJ-8 elastic fastener), which is composed of screw spikes, flat washers, elastic clips, insulating gauge blocks, gauge baffles, under-rail pads, iron pads, elastic pads under iron pads and embedded dowels. In addition, in order to adjust the height of the steel rail, it also includes a fine-tuning pad under the rail and a lower-elevating pad of the iron backing plate.
Adjustment amount of left and right position of single strand rail: -5~+5mm;
Gauge adjustment amount: -10~+10mm, the adjustment level is 1mm.
The height adjustment of the rail is -4~+26mm, and the adjustment level is 1mm.
Design Parameter for Type WJ-8 Rail Fastening System
|
No. |
Item |
Performance |
|
1 |
Suitable Rail type |
Chinese 60kg/m steel rail |
|
2 |
Gauge |
1435mm |
|
3 |
Rail bottom slope |
sleeper or track slab with 1:40 rail bottom slope |
|
4 |
Longitudinal resistance of rail |
In general sections, the longitudinal resistance of each group of fastener rails is greater than 9 KN; in low resistance sections, the longitudinal resistance of each group of fastener rails is about 4 KN. |
|
5 |
System flexibility |
The static stiffness of type A pad is 30~40kN/mm, which is suitable for 250km/h passenger dedicated line (taking into account freight); the stiffness of type B pad is 20~26kN/mm, which is suitable for 350km/h passenger dedicated line; the ratio of dynamic and static stiffness is not more than 2.0 |
|
6 |
Dynamic and static stiffness ratio |
≤1.5 |
|
7 |
Fatigue performance |
The fastener system has no damage to all parts after 3 million load cycles, the gauge expansion is less than 6mm, and the buckling force change is ≤20%; the rail longitudinal resistance change is ≤20%; the joint static stiffness change is ≤25% |
|
8 |
Insulation resistance |
The fastener system is tested in accordance with EN13146-5, and the insulation resistance between the two rails is greater than 3Ωkm, and it meets the requirements for the insulation resistance of the rail circuit. |
|
9 |
Harsh environmental conditions |
The fastener system can be removed smoothly after the 300h salt spray test described in EN13146-5. |
|
10 |
Adjustment amount of rail left and right position |
Adjustment amount of left and right position of single strand rail: -5~+5mm; Gauge adjustment amount: -10~+10mm, the adjustment level is 1mm |
|
11 |
Adjustment amount of rail height |
Adjustable amount of rail height: 30mm |
|
12 |
Buckle force and stroke |
Commonly used elastic clips (W1 type): single elastic clip buckle pressure is greater than: 9kN, elastic range 14mm; small resistance elastic clip (X2 type); single elastic clip buckle pressure 6kN, elastic range 12mm |
|
13 |
Pull-out resistance of embedded dowel in sleeper |
≤60kN |
| Is this product buy America compliant? | Yes |
|---|---|
| Brand | AT |
Do you want to sell in our platform?
