Effect Of Roughness On Rubber Products
Aug 10, 2023
The roughness of rubber products refers to the unevenness of the surface, usually expressed by Ra (average roughness). The roughness of rubber products will affect its appearance, performance and service life.
The surface roughness of rubber products has an impact on sealing performance, friction performance, wear resistance and appearance quality. The following are the specific impacts:
1. Sealing performance: The smaller the surface roughness of the rubber product, the larger the contact area between the rubber product and the sealing surface, and the better the sealing performance. Conversely, the greater the surface roughness, the smaller the contact area and the worse the sealing performance.
2. Friction performance: The surface roughness of rubber products has an impact on friction performance. The smaller the surface roughness, the smaller the coefficient of friction, and vice versa. Therefore, in some occasions where friction needs to be reduced, it is necessary to choose rubber products with smaller surface roughness.
3. Wear resistance: The surface roughness of rubber products also affects the wear resistance. The smaller the surface roughness, the better the wear resistance of rubber products, and vice versa. Therefore, in some occasions that require better wear resistance, it is necessary to choose rubber products with smaller surface roughness.
4. Appearance quality: Rubber products with rough surface may have problems such as cloak, uneven surface, damage, bulge, cracking of parting line, white spit, and colorful spit, which will affect its aesthetics and quality. The smaller the surface roughness, the better the appearance quality of rubber products, and vice versa. Therefore, in some occasions that require high appearance quality, it is necessary to choose rubber products with smaller surface roughness.
To sum up, the roughness of rubber products has an important impact on the performance and appearance, and it is necessary to choose the appropriate roughness according to the actual use requirements.
