Soles

Shoes by the end of the raw materials into rubber, imitation leather, plastic, rubber soles. Rubber soles soft, flexible, and anti-skid, wear-resistant, heat, cold, slightly heavy weight. Light at the end of imitation leather, Stiffness, wear resistance, Qu torsion, but poor flexibility, not anti-skid. At the end of wear-resistant plastic, smooth appearance, not anti-skid colourful, cold resistance worse, heavier. Rubber soles both rubber and plastic materials advantages of the two, wear-resistant, flexible, and soft, is currently in the high-end shoes at the end of the preferred material.

Before the end of the shoe soles of the thickness of the focus on standards, requirements to be met, the total thickness of the end of the 2 / 3, tests should also focus on the end of computing, both inside and outside of the tread depth of the two combined can not exceed the total thickness of the end of the 1 / 3, if this amounted to less than a standard can be found and shoddy shoes. In addition to thickness, the soles should have Naizhe, wear resistance. As soles is generally made from polymer materials, tests in accordance with national standards in testing machine dedicated Naizhe on Naizhe performance testing, soles to a certain frequency, certain angle, Quzhe after a certain number of times by different species, not the length of soles split More than 40,15,12 mm. Soles wear-resistance testing in accordance with national standards in the exclusive wearable instrument on the pilot, were seized sole contact with a standard of abrasive wheels, and subject to certain pressures, abrasive wheels to a certain speed of rotation, with some wear and tear of time, different varieties, wear track 16,12,10 mm length of not more than qualified. Travel shoes on the outside and in the end, between the end of a certain bonding requirements of strength, when tested in the universal testing machine or pull on the test machine, bonding strength of not less than 20 N / cm qualified.