Scratch
resistance test is a lot of materials need to do a test
indicator.Currently used on the scratch resistance testing methods are many, but the principle is basically similar. The following focus on the interpretation of the next five fingers scratch method. This test method requires the use of the instrument for the five fingers scratch tester. The scratch tester uses tungsten carbide as a scratch to accurately detect surface wear caused by unconventional defined physical form (eg scraping, grasping, planing, etc.). Take the initiative to detect the car, the outer trim in the smooth, texture of the plastic pieces of wear resistance.
Designed based on the automotive industry standard technical requirements, there are usually five contacts. Five fingers scratch tester instrument bracket supports five independent spline rods, so that the needle can be loaded with continuous vertical force. The handle of the bracket controls the height of the cantilever, and the five brackets allow one or more of the cantilevers to move to a non-obstructive place, so that they can not touch the sample in the test.
The test sample is fixed on a compressed air driven test platform. Five independent shaft scraping fingers that can be replaced with different weights and optional scraping fingers, constant vertical acting on the test sample surface. The scraper is mounted on a hard bench, and the operator can hold the specified scraper in a balanced position by means of a bracket so that the irregularly sized sample can also be tested.
Five fingers scratch / scratch tester is designed for plastic material assessment, hard material wear, paint, ink, soft metal, oil carpet and other material testing.
Five fingers scratch / scratch tester principle: This test method is used to test the surface material resistance from the scratch caused by the ability to hurt. According to the material may be used in contact with the nails or other hard objects, the use of different materials, scraper, in accordance with the provisions of the direction, travel, speed, with a certain pressure on the sample surface, scraping the head and the sample to do relative movement, Unidirectional, non-reciprocating straight line scratching the track, scratching between the parallel. Final evaluation of the scratched sensory grade of the material, the color difference between the scratched area and the unscrewed area, or the minimum wiping force when the surface of the sample is damaged.The instrument consists of motor drive mechanism, scraping components, sample clamping fixtures and other components. Scratch components include scraper brackets, scraping fingers, scraping finger sets, presses (weights and weight support bars), and the like.
Five fingers scratch tester instrument can be free to install, replace, disassemble different specifications of the scraping fingers, can be carried out under different load uniform one-way linear scratches the movement. The instrument uses embedded system, man-machine interface operation of the test process for automatic control, the use of precision servo motor, ball screw drive, for the relevant standards in the scratch speed control accuracy has a decisive role. The use of tungsten carbide material to do scratching the instrument to increase the service life, the instrument using aluminum alloy and stainless steel appearance simple and lightweight and corrosion-resistant.
indicator.Currently used on the scratch resistance testing methods are many, but the principle is basically similar. The following focus on the interpretation of the next five fingers scratch method. This test method requires the use of the instrument for the five fingers scratch tester. The scratch tester uses tungsten carbide as a scratch to accurately detect surface wear caused by unconventional defined physical form (eg scraping, grasping, planing, etc.). Take the initiative to detect the car, the outer trim in the smooth, texture of the plastic pieces of wear resistance.
Designed based on the automotive industry standard technical requirements, there are usually five contacts. Five fingers scratch tester instrument bracket supports five independent spline rods, so that the needle can be loaded with continuous vertical force. The handle of the bracket controls the height of the cantilever, and the five brackets allow one or more of the cantilevers to move to a non-obstructive place, so that they can not touch the sample in the test.
The test sample is fixed on a compressed air driven test platform. Five independent shaft scraping fingers that can be replaced with different weights and optional scraping fingers, constant vertical acting on the test sample surface. The scraper is mounted on a hard bench, and the operator can hold the specified scraper in a balanced position by means of a bracket so that the irregularly sized sample can also be tested.
Five fingers scratch / scratch tester is designed for plastic material assessment, hard material wear, paint, ink, soft metal, oil carpet and other material testing.
Five fingers scratch / scratch tester principle: This test method is used to test the surface material resistance from the scratch caused by the ability to hurt. According to the material may be used in contact with the nails or other hard objects, the use of different materials, scraper, in accordance with the provisions of the direction, travel, speed, with a certain pressure on the sample surface, scraping the head and the sample to do relative movement, Unidirectional, non-reciprocating straight line scratching the track, scratching between the parallel. Final evaluation of the scratched sensory grade of the material, the color difference between the scratched area and the unscrewed area, or the minimum wiping force when the surface of the sample is damaged.The instrument consists of motor drive mechanism, scraping components, sample clamping fixtures and other components. Scratch components include scraper brackets, scraping fingers, scraping finger sets, presses (weights and weight support bars), and the like.
Five fingers scratch tester instrument can be free to install, replace, disassemble different specifications of the scraping fingers, can be carried out under different load uniform one-way linear scratches the movement. The instrument uses embedded system, man-machine interface operation of the test process for automatic control, the use of precision servo motor, ball screw drive, for the relevant standards in the scratch speed control accuracy has a decisive role. The use of tungsten carbide material to do scratching the instrument to increase the service life, the instrument using aluminum alloy and stainless steel appearance simple and lightweight and corrosion-resistant.
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