The a utomative cable sandpaper abrasion test apparatus meets the requirements of ISO6722-1 clause 5.12.4.1 figure 6, ISO 19642-2 clause 5.4.2.4 and figure 3, GB/T25085, QC/T730, JASO D608, JASO D611, SAE J1127, SAE J1128 and JIS C3406 standard. It’s applied for verify that the resistance of the cable insulation to sandpaper abrasion. Measure the “resistance to sandpaper abrasion” using 150J garnet sandpaper tape with 5mm to 10mm conductive strips perpendicular to the edge of the sandpaper spaced a maximum of every 75mm. Exert a force of (0.63 ± 0.05)N on the test sample by the combination of the bracket, support rod and pivoting arm, the total vertical force exerted on the test sample shall be the combination of the force exerted by the bracket, pivoting arm, support rod and additional mass. Mount the test sample taut, without stretching, in a horizontal position using an area of the sandpaper abrasion tape not previously used. Place the additional mass and ...
Abrasion Resistance Tester/Scratch Tester 1. Introduction Abrasion resistance tester is designed according to IEC60950 clause 2.10.8.4 and IEC60335-1 clause 21.2. It is applied to do scratch test for accessible parts of solid insulation of household appliance and printed circuit boards, to ensure the material has sufficient strength to prevent penetration by sharp implements . The scratch resistance test uses a hardened steel pin f or scratching. The end of the steel pin should be tapered with a apex angle of 40°. The tip should be rounded with radius of 0.25 mm ± 0.02 mm. When performing the scratch test, the test pin is held at 80-85° to the horizontal , and scratches were performed at a speed of 20 mm/s ± 5 mm/s in a plane perpendicular to the edge of the conductor. The steel pin should be properly loaded so that the hardened steel pin can apply a force of 10N ± 0.5N along its axial direction. The scratch interval should be at least 5mm and at ...