Overview
The computer-controlled stiffness tester is a smart instrument for measuring the bending resistance of paper, Cardboard and other non-metallic materials with strength sheets of less than 2mm Film thickness. Its main technical parameters comply with ISO 2493 "Determination of Paper and Cardboard stiffness" and GB/T 2679.3 "Cardboard stiffness determination method".
Features
The angle can be arbitrarily set between 1 ° and 90 °, and the test time can be arbitrarily set within the range of 3 seconds to 35 seconds.
2. With automatic zero test function.
3. Adopt 5.7-inch LCD screen, which can display stiffness and time Linear dispersion in real time, and the operation is simple and convenient.
4. Equipped with various parameter testing, display, memory, statistics and printing functions included in the standard, providing scientific data analytics for testing.
Principle
The instrument calculates the stiffness value of the material by driving the test arm to bend the specimen at a speed of 200 ° +/- 20 °/min to a preset angle (such as 7.5 ° +/- 0.3 ° or 15 ° +/- 0.3 °), measuring the torque of the specimen against bending. The whole process is controlled by computer, and the Linear dispersion of force and time is displayed in real time.
Applications
Paper, Cardboard, Miscellaneous Strength Determination of stiffness of sheet Non-metallic materials
Standards
ISO 2493、GB/T 2679.3
Steps
Select the appropriate bending length (50mm, 25mm, 20mm, 15mm, 10mm or 5mm) according to the sample.
2. Set the required bending angle (1 ° to 90 °) and test time (3 seconds to 35 seconds) on the instrument.
3. Install the sample.
4. Start the test, the instrument will automatically zero and start bending the specimen.
5. After the test is completed, the instrument displays and records the stiffness value and Linear dispersion.
6. Test results can be printed through the built-in thermal printer.
Notice
• Film thickness is less than 2mm.
• Before use, please make sure that the instrument is working in an environment with temperature (20 +/- 10) ° C and humidity < 85%.
• Note that the selection of bending length must meet the standard requirements, and the accuracy is +/- 0.1mm.
• When testing, make sure that the specimen is firmly installed to avoid affecting the test results.
• Maintain instruments regularly to ensure measurement Precision and indication variability meet requirements.
