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Help CenterEN 14587-1 Hydraulic Servo Automatic Rail Static Bending Testing Machine
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1. Application :
Servo-hydraulic Rail Static Bend Testing Machine is designed for testing of rails after welding, analysis is performed at the edge of the weld collar of an aluminothermic weld, in order to examine one of the failure modes that occur in this weld type under high axle load conditions.
Steel Dynamics has recently implemented a higher strength steel into their train rail production. The quality of the weld used to join the rail is tested using a static bend test machine.
Servo-hydraulic Rail Static Bend Testing Machine is designed for testing of rails after welding; analysis is performed at the edge of the weld collar of an aluminothermic weld, in order to examine one of the failure modes that occur in this weld type under high axle load conditions
Using the Rail Static Bend Testing Machine during the installation of rail allows the
user to periodically test the quality of welds.
EN 14587-1 Railway applications. Track. Flash butt welding of rails. Part 1. New 220 and 260 grade
rails in a fixed plant
Each bend test shall be continued until the bend test values reached the specified values,
in case fracture does not occur, the test shall be interrupted. To ensure that fracture occurs
in the welding zone, the weld shall be notched and the bend test shall be continued until
the fracture takes place.
If fracture occurs remote from the weld the fracture surfaces shall be inspected. The
details of any weld defects shall the recorded in accordance with rail profile grip (Figure).
Lack of bond shall not be permitted, Flat sport shall not be considered to be lack of bond
If fracture occurs remote from the weld the fracture surfaces shall be checked for the
presence of die burn, which if detected shall cause the process to fail approval,. If fracture
occurs within the rail for reasons other than die burn then another test weld specimen shall be substituted for testing
2.Features:
The machines controls allow for full pc control and data acquisition of results of load and extension.
Rigid 4-column load frame providing superior axial and lateral stiffness and minimum maintenance, low reaction at specimen failure.
Load frame with weight up to seven tones and load capacity up to 3000kN.
Top mounted actuator with unchanged height of lower platform making it is easy for operators to install specimens and test fixtures.
Fully covered rail testing chamber ensure the safety for operators
Sliding roller bench facilitate operator to install the specimen into testing chamber
3.Specifications:
|
Model
|
HST-3000 |
|
|
|
3000 |
Capacity |
kN |
3000 |
Load resolution |
kN |
Capacity/300, 000 (fully auto scaling of single measurement range) |
Machine specifications |
Stroke |
|
|
in |
11.81 |
|
mm |
300mm |
|
Testing speeds |
|
|
in/s |
0.0276~0.0472 |
|
mm/s |
0.7~1.2 |
|
Loading rate |
|
|
kN/S |
40~120 |
Bend test arrangement |
Bearer span |
|
|
in |
39.37±0.197 |
|
mm |
1000±5 |
|
Bearer radius |
|
|
in |
0.984~2.756 |
|
mm |
25~70 |
Hardness of bending tip |
HRC |
50-55 |
|
Surface roughness of bending tip |
µm |
Ra≤6.3 |
Rail size |
|
60E1~46E2 |
Welcome to contact Sunny for more informations: Whatsapp/Line/Phone: +8615866777590 Skype:jessica-hssd Email: sunny at
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