초록 ▼

A method of abrading a tire tread compound to measure its irregular wear characteristics, includes the steps of abrading each of a plurality of sample wheels in rotating engagement with a respective abrasive member. An outer layer of each sample wheel is made of a tire tread compound to be abraded.

A method of abrading a tire tread compound to measure its irregular wear characteristics, includes the steps of abrading each of a plurality of sample wheels in rotating engagement with a respective abrasive member. An outer layer of each sample wheel is made of a tire tread compound to be abraded. The velocity of the sample wheels relative to the velocity of the abrasive members defines a first slip value. Each sample wheel is abraded in rotating engagement with a plurality of abrasive members at the first slip value. The loss of the tire tread compound of each sample wheel at the first slip value is then measured. Each sample wheel is then abraded in rotating engagement with a plurality of respective abrasive members at a second slip value. The loss of the tire tread compound of each sample member at the second slip value is then measured. Each sample wheel is then abraded in rotating engagement with a plurality of respective abrasive members at a third slip value. The loss of the tire tread compound due to abrasion at the third slip value is then measured. The second slip value causes a higher level of abrasion severity than the first slip value. The third slip value in turn causes a higher level of abrasion severity than the second slip value. The irregular wear characteristics of the tire tread compound is measured based on the loss of the compound due to abrasion at each of the different slip values.

대표청구항 ▼

A method of abrading a tire tread compound to determine the irregular wear characteristics of the compound, comprising the following steps: weighing at least two sample wheels, wherein each sample wheel includes a tire tread compound; abrading the tire tread compound of each sample wheel by rotating

A method of abrading a tire tread compound to determine the irregular wear characteristics of the compound, comprising the following steps: weighing at least two sample wheels, wherein each sample wheel includes a tire tread compound; abrading the tire tread compound of each sample wheel by rotating each sample wheel in engagement with a respective grindstone at a first slip value, the slip value being based on the difference between the velocities of the sample wheels and the grindstones; weighing each sample wheel again to measure the abrasion resistance of the tire tread compound at the first slip value and generating a first index value indicative thereof, the index value being based on a comparison of the abrasion resistance of the tire tread compound to the abrasion resistance of a reference compound at the same slip value; abrading the tire tread compound of each sample wheel by rotating each sample wheel in engagement with a respective grindstone at a second slip value, the second slip value causing a higher level of abrasion severity than the first slip value; weighing each sample wheel again to measure the abrasion resistance of the tire tread compound at the second slip value and generating a second index value indicative thereof; abrading the tire tread compound of each sample wheel by rotating each sample wheel in engagement with a respective grindstone at a third slip value, the third slip value causing a higher level of abrasion severity than the second slip value; and weighing each sample wheel again to measure the abrasion resistance of the tire tread compound at the third slip value and generating a third index value indicative thereof, and comparing the first, second and third index values to each other and/or to the corresponding index values of other tire tread components tested to determine the irregular wear characteristics of the tire tread compound.