The performance evaluation of agricultural tire materials needs to be comprehensively considered from multiple dimensions, including physical and mechanical properties, wear resistance, durability, traction performance, self-cleaning performance, lateral stability, and aging resistance. Specific evaluation points and methods are as follows:

1. Physical and Mechanical Properties

Evaluation Points: Includes tensile strength, elongation at break, hardness, abrasion loss, and tear strength. These indicators directly reflect the basic properties of tire materials, such as strength, elasticity, and wear resistance.

Evaluation Method: Tests are conducted according to national standards to obtain accurate data for evaluating material performance.

2. Wear Resistance

Evaluation Points: Wear resistance is one of the important indicators for agricultural tires, directly affecting tire lifespan.

Evaluation Method: Wear resistance tests are conducted using standard testing methods such as the dual-drum method. By simulating actual driving conditions, the tire wear pattern is accurately captured, and wear resistance is evaluated using indicators such as mass loss and wear index.

3. Durability

Evaluation Points: Durability reflects the tire's resistance to fatigue and aging during long-term use.

Evaluation Method: Durability tests are conducted according to national standards. The tests are conducted on a rotary drum testing machine to simulate the stress conditions of tires in actual use. After continuous operation for a certain period, the tire's appearance and performance changes are checked to evaluate its durability.

4. Traction Performance

Evaluation Points: Traction performance is one of the key performance characteristics of agricultural tires in field operations, directly affecting the operating efficiency of agricultural machinery.

Evaluation Method: Traction performance tests are conducted according to national standards. By simulating the tire's stress conditions under different working conditions, the tire's traction force and other indicators are measured to evaluate its traction performance.

5. Self-Cleaning Performance

Evaluation Points: Self-cleaning performance is crucial for agricultural tires operating on muddy or soft soil. Good self-cleaning performance can reduce tire clogging and improve operating efficiency.

Evaluation Method: The self-cleaning performance is evaluated by observing the amount of mud remaining on the tire tread under specific working conditions and calculating the cleaning rate.

6. Lateral Stability Performance

Evaluation Points: Lateral stability performance reflects the tire's stability when turning or under lateral forces, which is of great significance for the safe operation of agricultural machinery.

Evaluation Method: Lateral stability performance score is calculated by measuring the tire's self-aligning torque under lateral force and the strain distribution obtained from a strain gauge array.

7. Aging Resistance Performance

Evaluation Points: Aging resistance performance reflects the tire material's ability to withstand environmental factors and undergo performance changes during long-term use.

Evaluation Method: Performance tests such as thermo-oxidative aging, ozone aging, and ultraviolet aging are conducted according to national standards. By simulating actual usage conditions, key indicators such as changes in the tire material's physical properties, chemical composition stability, and microstructure evolution are detected to evaluate its aging resistance performance.