The basic function of the sole is to isolate the contact between the foot and the ground and prevent the foot from being hurt by sharp objects on the ground, prevent excessive sliding in the process of movement, disperse the force generated by movement, reduce the burden on the sole of the foot, play a protective role and increase the comfort of the foot. The abrasion resistance of sole is one of the important properties of shoe products, which determines the service life of shoes, when the sole is worn to a certain extent, it will lead to uneven stress on the sole of the foot, which will affect the development of human bones. Therefore, at present, in all kinds of footwear products imported and exported, it is necessary to test its abrasion resistance.

Common abrasion resistance methods of sole

At present, the commonly used abrasion resistance include the following methods:

1.Akron abrasion test method

2.DIN abrasion test method

3.Taber abrasion test method

4.GB(Chinese standard) abrasion test method

5.NBS abrasion test method

1.1 Akron abrasion test method

Test Subject: All kinds of soles

Test equipment: Rubber Akron Abrasion Tester GT-KB04

Test method:Cut the sample into a given shape, place it under the grinding wheel, adjust the angle and load of the grinding wheel to make it close to the surface of the sample, and then test the abrasion index of the sample after 1.6km abrasion

Characterization of test results: Both wear volume and wear index can be used to characterize.

1.2 DIN Abrasion test method

Test Subject: Various types of soles

Test equipment: DIN Abrasion Tester GT-KB03

Test method: Cut the sample into a cylindrical shape, place it under the abrasive cloth wheel, then adjust the pressure of the grinding wheel to combine it with the sample surface, start the machine, and measure the amount of abrasion caused by the abrasion of the sample within a certain distance .

Characterization of test results: volume wear or wear index.

1.3 Taber abrasion test method

Test Subject: leather, fabric

Test equipment: Taber Abrasion Tester GT-C14A、C14B

Test method: Cut the sample into the corresponding shape, place it under two abrasion wheels, apply a certain pressure to make the sample contact the lower surface of the abrasion wheel, then start the machine, and rotate the abrasion wheel to achieve the purpose of abrasion .

Characterization of test results: It is expressed by the difference in mass before and after abrasion of the sample.

1.4 NBS abrasion resistance method

Test subject: Various soles

Test equipment: NBS Rubber Abrasion Tester GT-KB02

Test method: This method needs to use the standard glue as a reference object. Put the standard glue and the standard sample under the grinding wheel, start the machine, the drum moves, and the sample is stationary. When the wear thickness reaches 2.54 mm, the conductive device of the device will automatically Cut off and compare the abrasion times of the standard rubber and the standard sample under the same abrasion thickness.

Characterization method of test results: It is characterized by the ratio of abrasion times of two samples.