KASON-2000GGW 2000KN Rail Static Bend Testing Machine

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:

l The machines controls allow for full pc control and data acquisition of results of load and extension.

l Rigid 4-column load frame providing superior axial and lateral stiffness and minimum maintenance, low reaction at specimen failure.

l Load frame with weight up to seven tones and load capacity up to 3000kN.

l Top mounted actuator with unchanged height of lower platform making it is easy for operators to install specimens and test fixtures.

l Fully covered rail testing chamber ensure the safety for operators

l Sliding roller bench facilitate operator to install the specimen into testing chamber