Natural rubber is a typical self-reinforcing rubber with high mechanical strength and good elasticity. It can be used to produce rubber conveyor belts with excellent impact resistance, suitable for large-scale high-impact, high-drop transportation and other occasions. In actual production, the cost of using natural rubber to produce impact-resistant conveyor belts is relatively high. Manufacturers can use low-cost raw materials in an appropriate amount to reduce the cost of raw materials while ensuring the performance of the conveyor belt.
1. The basic performance requirements of impact resistance and high wear resistance conveyor belt
High wear-resistant and impact-resistant conveyor belts require a smooth surface, fewer appearance defects, and excellent wear resistance, impact resistance and elasticity. Under normal circumstances, this type of conveyor belt has a Shore hardness of 60±5 degrees, a tensile strength higher than 18mpa, an elongation at break greater than 450%, and the Akron Mill 2YLYY820 consumption is less than 0.1cm³. When rubber product manufacturers prepare natural rubber impact-resistant conveyor belts, they should select appropriate rubber raw and auxiliary materials according to their basic performance requirements, and rationally design rubber product formulas.
2. The basic formula of natural rubber production impact resistant conveyor belt
70 parts of natural rubber, 30 parts of synthetic rubber, 1.8 parts of sulfur, 5 parts of zinc oxide, 2.5 parts of stearic acid, 1.8 parts of accelerators, 55 parts of reinforcing agents, 11.5 parts of softeners, 3 parts of antioxidants; total: 180.6 parts .
3. Choose low-cost raw materials to produce conveyor belts
When using natural rubber as the main raw material to produce highly wear-resistant and impact-resistant rubber conveyor belts, reclaimed rubber can be used in an appropriate amount in the formulation. It is recommended to choose black latex reclaimed rubber with high mechanical strength and good elasticity (the price ratio of black latex reclaimed rubber with the same index is White latex reclaimed rubber is low) or tire tread reclaimed rubber; or use compound rubber, natural rubber on the ground, the product indicators are close to natural rubber, the price is much lower than natural rubber, especially when the price of natural rubber is high, effectively reducing raw materials Cost.
Reclaimed rubber, composite natural rubber and floor-to-ceiling natural rubber have good compatibility with natural rubber and general synthetic rubber, and can be used together with natural rubber to produce high wear-resistant and impact-resistant conveyor belts with lower production costs and better comprehensive indicators; appropriate increase in reinforcement The amount of carbon black can improve the mechanical properties of the finished product. In actual production, appropriately adjusting the formula of the impact-resistant conveyor belt containing reclaimed rubber can further optimize the product performance and extend the service life. The editor will continue to discuss with you later.
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