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Diameter of needle: (0.45±0.01) mm*1, (0.25±0.01)mm*1
Type of needle: Spring wire material
Length of abrasion: (15.5±1)mm
Frequency: (50/60±5) cycles/min (adjustable)
Displacement of the needle: ≤20mm
Drive mode: Motor-driven
Mass: 1N, 4N, 7N
Groove depth: 0.4mm, 0.8mm
Number of test station: 1
Working power: AC220V/50Hz
The scrape abrasion test apparatus is designed to meet the test requirements of ISO6722-1 clause 5.12.4.2 and figure 7, DIN72551-5, QC/T-730, JASO D611-94 and VW60306 for testing the auto cables resistance to scrape abrasion.
The apparatus consisted a device to abrade the surface of the insulation of the test sample and a counter to record the numbers of cycles to failure. The needle abrades through the insulation and makes contact with the conductor, the apparatus will stop automatically. Scrape the sample at a certain speed until the sample cracks or breaks, and record the number of cycles to failure; or apply a certain vertical force to scrape the sample in a fixed cycles and then observe whether the sample has cracks or breakage.
