Testing system for ageing tests and hardness measurements on foams

Application range of the testing machine:

The device can be used to age a foam specimen in accordance with EN ISO 3385 and then measure the hardness acc. to EN ISO 2439.

• Ageing test acc. to EN ISO 3385: Determination of fatigue due to constant impact load (fatigue test)
• Hardness measurement acc. to EN ISO 2439: Determination of hardness using the indentation method

Functionality:

The test procedures are set up based on standards in the Lab-Master material and component testing software. The software also handles data recording and evaluation.

The test impacts are generated by an electromechanical actuator to which the compression plunger is fixed via a piston rod.

The load frame carries the actuator on a fixed crossbeam. The lower part of the loading frame contains the load cell on which the mounting plate for the foam specimen is mounted.

The load can be either force-controlled or displacement-controlled.

Both the fatigue test and the recording of the force-displacement curve to determine the foam hardness are carried out with the same actuator.

Once the preset number of cycles has been reached, the system moves to the rest position, where the loading plunger is moved all the way up.

The device is surrounded by a protective housing with a single-leaf door on the operating side, which prevents tampering with the running system in accordance with CE regulations. The safety door is protected by a switch that acts directly on the emergency stop.

Accessories included:

• Compression piece D250 (rigid, ISO 3385)
• Compression piece D203 (ball joint connection, ISO 2439)