The longer the service life of the friction plate, the better the wear resistance of the friction material
The longer the service life of the wiper, the better the wear resistance of the friction material.
The wear resistance of friction materials is a reflection of their service life and an important technical indicator to measure the durability of friction materials. The better the abrasion resistance, the longer it will last. However, the wear of the friction material in the working process is mainly caused by the shear force generated by the friction contact surface.
Operating temperature is an important factor in the amount of hard wear. When the surface temperature of the material reaches the thermal decomposition temperature range of the organic adhesive, the rubber and resin will decompose, carbonize and lose weight. As the temperature increases, this phenomenon intensifies, the bonding effect decreases, and the amount of wear increases sharply. large, called thermal wear.
The selection of suitable friction-reducing fillers and resins and rubbers with good heat resistance can effectively reduce the working wear of materials, especially thermal wear, and prolong their service life.
In the process of friction performance test, the tested sample will have different degrees of thermal expansion under the influence of high temperature, which will cover up the thickness wear of the sample, and sometimes even a negative value, that is, the thickness of the sample will increase after high temperature wear, which is not true and correct. Therefore, in addition to measuring the volume wear of the sample, the factory also measures the mass wear rate of the sample.
