Material Innovation and Data Support for PP Tire Bead Pad
In the precision system of tire manufacturing, every technological iteration of auxiliary materials is a redefinition of the upper limit of finished product quality. The widespread application of Bead Spacer is a microcosm of this process. It is not just a simple isolation tool, but also a composite carrier that integrates polymer material science and precision machining technology.
From a microstructural perspective, PP tire bead pads are typically made from co polymerized polypropylene as the base material, through biaxial stretching or injection molding processes. This process endows the material with excellent isotropy, which means it has balanced physical properties in both longitudinal and transverse directions. In practical applications, this means that the partition will not undergo directional distortion deformation when subjected to centrifugal force or adhesive pressure. Its density is usually controlled between 0.90-0.91g/cm ³, ensuring sufficient stiffness and minimizing weight, making it easy for automated equipment to grasp and transport.
Data is a hard indicator for measuring the quality of circular plastic flaps. In addition to the thickness and strength data mentioned above, surface roughness is also a key parameter. The surface roughness (Ra) of high-quality PP tire bead separators is usually less than 0.8 μ m. This mirror like smooth surface greatly reduces the friction coefficient with the rubber material, making the demolding process exceptionally smooth after vulcanization. Meanwhile, low friction also means reducing the risk of scratching the surface of the rubber material and improving the appearance yield of the tire. In terms of weather resistance, the tire pad treated with UV resistance can still maintain a mechanical performance retention rate of over 85% after being tested in a standard aging test chamber at 70 ℃ for 72 hours, demonstrating astonishing durability.
In addition, environmental performance is also an important consideration for modern plastic trays. PP tire bead separators that comply with RoHS standards strictly control their heavy metal content at the ppm level, are non-toxic and odorless, and do not release harmful volatiles during high-temperature vulcanization, ensuring the health and environmental safety of workshop workers. These detailed product data together establish the irreplaceable position of PP bead separators in the tire industry.
Changshu Yongchengsheng Hardware Products Co., Ltd. specializes in the production and sales of tire bead separators and PP tire bead pads. If you need them, please contact us at+86-13506249539; Contact email: ljd706627@gmail.com
