[Apparatus Purpose]

The machine is used to test foam fatigue by repeating indentation of a test piece, the maximum load reached during each cycle being kept within specified limits. The machine test foam hardness and height before fatigue test and also hardness change and height loss after pounding fatigue test.

The Foam fatigue test machine is used to determine the concave hardness of porous elastic materials. It can measure the sample of polyurethane sponge foam to carry out the test specified in the national standard, and accurately measure the indentation hardness of sponge, foam and other materials. It can also be used to measure the specified indentation hardness of the produced seat foam (such as backrest, seat cushion foam, etc.), and accurately measure the indentation hardness of each foam part of the seat.

[Principle]

Sponge foam compressive stress test places the sample between the upper and lower platens, and the upper platen compresses a sample of a certain size at a specified speed to the concavity specified by the A method (B method, C method) required by the national standard When the load cell on it feeds back the sensed pressure to the controller for processing and display, so as to measure the indentation hardness of materials such as sponge, foam and other samples.

[Standard]

ASTM D3574, ISO 3385, ISO 2439

[Features]

1. Automatic reset: After the computer receives the command to start the test, the system will automatically reset.

2. Automatic return: After the sample breaks, it will automatically return to the initial position.

3. Automatic shifting: according to the size of the load, different gears can be switched to ensure measurement accuracy.

4. Change speed: This machine can change the test speed arbitrarily according to different samples.

5. Calibration of indication value: the system can realize accurate calibration of force value.

6. Control method: Test methods such as test force, test speed, displacement, and strain can be selected according to test needs.

7. One machine with multiple functions: Equipped with sensors of different specifications, it can realize one machine with multiple functions.

8. Curve traversal: After the test is completed, you can use the mouse to arbitrarily find out the point-by-point force value and deformation data of the test curve and analyze it.

9. Display: Dynamic display of data and curve test process.

10. Results: The test results can be accessed, and the data curve can be analyzed.

11. Limit: with program control and mechanical limit.

12. Overload: Automatic shutdown when the load exceeds the rated value.

[Specifications]