Technical Specifications of Five Finger Scratch Tester for Automotive Interior Materials أداة الاختبار –

Technical Features of Five Finger Scratch Tester for Automotive Interior Materials

Multifunctional scratch resistance tester is a scratch performance testing instrument suitable for various automotive interior materials. The instrument incorporates three national test standards (five-finger scraping method, hundred grid method, plastic finger scraping method).

Technical characteristics:

1. The instrument consists of a motor drive mechanism, a scraping component, a sample clamping and fixing device, etc.

2. Scraping components include scratching stands, scratching fingers, scratching finger positioning sleeves, pressure devices (weights and weight bearing rods), etc.

3. The instrument can freely install, replace, and disassemble scraping fingers of different specificationsns, and can implement uniform unidirectional linear scraping motion under different loads.

4. Embedded systems and human-machine interface operations are used to automatically control the testing process. Precision servo motors and ball screw drives are used, which are decisive for the precision of the scraping speed control in accordance with current standards. role.

5. The scraper finger is made of tungsten carbide to increase the life of the instrument.

6. Made of aluminum alloy and stainless steel, the appearance is simple, lightweight and corrosion resistant.

Scratching Principle:

This test method is used to test the ability of surface materials to resist damage caused by finger scratching. Depending on the nails or other hard objects that may come into contact with the material during use, scraping fingers de different materials are used to act on the sample surface with a certain pressure depending on the specified direction, stroke and speed. The scraping head and sample make relative movements, resulting in a straight, unidirectional, non-reciprocating scraping track with parallel scratches. The material is ultimately evaluated for its scratch sensory index, the color difference between scratched and unscratched areas, or the minimum scratch force when the sample surface is damaged.

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