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Product Description and Usage:
This testing machine is mainly used to test the friction between various writing pens and paper, as an indicator to measure the lubrication of writing. It can conduct tests on hard pens such as neutral pen refills, as well as soft pens such as marker pens. It can also adjust the angle and simulate the writing state for various pen tests. Compliant with standards: GB/T 37853-2019 clause 7.9, GBT26699-2022 exam ballpoint pen 7.11
Main technical parameters:
1. Maximum test force (N): 2
2. Minimum resolution of experimental force (N): 0.001
3. Maximum marking diameter (mm): ≮ 150
4. Maximum rotation speed of the rotating disc: 40 turns/minute
5. Relative error of test force indication: ≤± 1.0%
6. Test force indication repeatability relative error: ≤ 1.0%
7. Relative error of zero point of test force (N): ≤± 0.002
8. Pen installation angle: adjustable from 60 ° to 90 °
9. Paper feeding speed: Automatic paper feeding 10mm/s
10. Test paper specifications: A4, paper r