The rubber bearing for trailer vehicle is made of vulcanized rubber layer and metal shell, which absorbs vibration by using the elastic deformation of rubber and plays the role of cushioning and shock absorption; The rubber layer is required to have good bearing capacity, compactness, wear resistance and aging resistance, bonding firmness, etc., generally processed with natural rubber as the main raw material, and the appropriate amount of reclaimed rubber can effectively reduce the cost of raw materials under the premise of ensuring the quality of the finished product.
1. Performance requirements of rubber bearings for trailer vehicles
Rubber bearings for trailer vehicles can be used in the suspension system, transmission steering system and anti-sway device of trailer vehicles, requiring rubber to have good elasticity, shock absorption, wear resistance, fatigue resistance, temperature resistance, corrosion resistance, creep resistance, dimensional stability, etc., effectively buffer the impact and vibration generated during the driving process of trailer vehicles, and maintain stable performance when working in different environments for a long time.
2. Natural rubber/reclaimed rubber combined with the production of rubber bearing vulcanization formula for trailer vehicles
80 parts of natural rubber, 20 parts of recycled rubber, 15 parts of zinc oxide, 3 parts of stearic acid, 1.5 parts of antioxidant A, 60 parts of carbon black N330, 5 parts of clay, 5 parts of iron oxide red, 2 parts of pine tar, 1 part of accelerator DM, 0.8 parts of accelerator M, 3 parts of sulfur; Total 196.3 copies.
3. The advantages of mixing reclaimed rubber with rubber bearings for trailer vehicles
Reclaimed rubber retains the basic performance characteristics of rubber, has good elasticity, wear resistance, tear resistance and impact resistance, and the price is much lower than that of original rubber, which can give good shock absorption and cushioning performance to the rubber bearings of trailer vehicles and reduce the cost of raw materials. Reclaimed rubber has good plasticity, easy to mix with raw rubber and compounding agent, which can shorten the mixing time and reduce power consumption during mixing; It has good fluidity, which can reduce defects such as bubbles and cracks in semi-finished products; Unvulcanized rubber blended with reclaimed rubber expands and shrinks less than new rubber during processing, and the shape and size of the finished product are more accurate.
4. Which reclaimed rubber can be used in combination with natural rubber to produce rubber bearings for trailer vehicles
When using reclaimed rubber to reduce the production cost of rubber bearings for trailer vehicles with natural rubber as the main raw material, it is recommended to choose reclaimed rubber with good compatibility with natural rubber, such as latex reclaimed rubber and tire reclaimed rubber.
Latex reclaimed rubber is processed from waste natural rubber, waste latex and its products as raw materials, which is basically consistent with the performance of natural rubber, and is mainly used to replace natural rubber to produce various rubber products, and reduce the cost of raw rubber under the premise of ensuring the E4LYY1219 performance of the finished product. Tire reclaimed rubber is regenerated by desulfurization of waste tire rubber powder, the main components are natural rubber, general synthetic rubber and carbon black, which has good compatibility with natural rubber, and can be used in combination with natural rubber to produce rubber bearings for trailer vehicles to reduce costs.
When using natural rubber/reclaimed rubber and rubber to produce rubber bearings for trailer vehicles, the mixing ratio of reclaimed rubber must be reasonably controlled, and the formula and production process parameters must be appropriately adjusted.
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