Apparatus Purpose

This machine is used to measure the concave hardness of porous elastic materials. The polyurethane sponge foam sample can be tested and tested according to the national standard, and the hardness of the sponge, foam and other materials can be accurately measured. It can also be used to measure the specified indentation hardness of the seat foam (such as the backrest, cushion foam, etc.) that has been produced, and accurately measure the indentation hardness of each foam member 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

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