What are the quality standards for tire rubber?

The quality standards for tire rubber usually cover multiple aspects to ensure that it meets usage requirements and ensures safety. Here are some of the main tire rubber quality standards:

1、 Appearance quality

The tread pattern should be clear and uniform, and the tread depth should not be less than the specified value (such as 1.6 millimeters) to ensure the grip and service life of the tire.

The tread should not have defects such as cracks, bulges, bubbles, etc., and there should also be no foreign objects embedded to maintain the integrity and safety of the tire.

The color of tire rubber should be uniform, without obvious color difference or discoloration, to ensure its appearance quality and consistency.

2、 Physical performance

Sulfurization characteristics: Tire rubber should have good vulcanization characteristics, including appropriate vulcanization speed, vulcanization temperature, and vulcanization pressure, to ensure the strength and stability of the tire.

Tensile strength: Tire rubber should have sufficient tensile strength to withstand various stresses during vehicle operation.

Tensile elongation at break: The elongation at break of tire rubber should meet certain requirements to ensure the flexibility and durability of the tire.

Hardness: The hardness of tire rubber should be moderate, neither too soft nor too hard, to meet the needs of vehicle driving.

3、 Wear resistance

Tire rubber should have good wear resistance to resist friction between the tire and the ground or other objects during use. Wear resistance is usually evaluated through wear tests under simulated driving conditions.

4、 Adhesion force

For tire adhesive products such as tire repair glue, adhesion is an important quality indicator. Adhesion testing can evaluate the adhesion, shear strength, and tensile strength between adhesive and tire materials.

5、 Temperature resistance performance

Tire rubber should be able to maintain its performance stability within a certain temperature range. Softening or deterioration should not occur at high temperatures, and it should not become too hard or brittle at low temperatures.

6、 Security performance

Tire rubber should be non-toxic, harmless, and meet environmental protection requirements. At the same time, harmful gases or substances should not be produced during use. In addition, tire rubber should also have certain flame retardant properties to reduce the risk of fire.

7、 Other requirements

In addition to the above standards, tire rubber should also comply with relevant national or regional laws and regulations, as well as industry standards and specifications. Meanwhile, the quality standards for tire rubber may vary depending on different usage scenarios and requirements.

In summary, the quality standards for tire rubber are a comprehensive indicator system that covers multiple aspects such as appearance quality, physical properties, wear resistance, adhesion, temperature resistance, safety performance, and other requirements. The formulation and implementation of these standards are of great significance for ensuring the quality and safety of tire rubber.