More About Scratch Abrasion Test

More About Scratch Abrasion Test

Scope:Scratch resistance test machine for a variety of automotive interior materials, such as plastics, rubber, leather, fabric, coating materials, coating materials and other non-composite materials such as scratch resistance detection

standard：
GB/T 2918，GB/T 6151，GB/T 8424.3，PV3952，BMW GS97034-2，BMW GS97034-9，GMN 3943-2003，FLTM BN 108-13，STD1024-3113，GMW 14698-A，GMW 14688。

Scratch resistant scratch test machine principle:

This test method is used to test the scratch resistance surface material refers to cause injury. According to the material may be exposed to the use of nails or other hard objects, using different materials scraping means, in accordance with the direction of travel, speed, a certain pressure is applied to the sample surface, scratches and samples head relative motion, resulting in one-way, non-linear reciprocating the wiping trajectory between parallel scratches. Final assessment grade material senses scratches, scratches and color difference regions, not scratches or sample surface area was damaged when the minimum scraping force.
Technical Parameters:

The travel range: 10-200mm;

Speed range: 10-200mm / s;

Speed Buffer: 10 ± 1mm;

The metal scraper head diameter: 0.5mm, 0.75mm, 1mm (Erichsen318), 3mm, 5mm, 7mm;

The metal scraper head material: tungsten carbide;

Pressurized weight and scraping components total weight: 2N, 3N, 5N, 7N, 8N, 10N, 12N, 15N, 20N (optionally with option) mass error does not exceed 1%;

Plastic scraper means: polymethyl methacrylate (PMMA);

The diameter of 16mm thickness 1mm;

Scraping means is an edge radius 0.5mm;

Hardness shore D85.

Power: AC220V ± 10%, 50Hz