Prefabricated rubber runway extruder, rubber runway extruder (equipment)

  The invention relates to a prefabricated rubber runway extruder and a rubber runway extruder (equipment), which relates to a special runway for stadium competition, in particular to a prefabricated rubber runway and a manufacturing process thereof

Background technology:
For many years, the traditional prefabricated rubber runway has the disadvantage of poor weather aging performance of products
At the same time, the traditional prefabricated rubber runway manufacturing process generally adopts triple calendering and vulcanization tank hot air vulcanization
The traditional manufacturing process not only has low production efficiency, but also has the defects of large temperature difference and uneven vulcanization degree in the tank, resulting in product foaming pore size The runway rebound value, tensile strength and other indicators are unstable, so that the product is prone to surface cracks, delamination, bubbles and other quality problems

 
summary of the invention
In view of the defects of the above prior art, in order to improve the production efficiency and improve the weather aging performance and physical performance of the runway, the invention first develops the formula of the rubber runway, especially the upper material, selects the rubber component with the best weather aging performance, and adjusts the use proportion of the rubber component through multiple tests, comparison and analysis, The weather aging performance of the product is improved
In order to improve the ozone resistance, wear resistance and tensile strength of the runway, the dosage of ultraviolet absorption Qi u, white carbon black and aluminum silicate were adjusted respectively
At the same time, a new manufacturing process is developed and a new process design is adopted to reduce the temperature difference of the vulcanization process
Due to the small process temperature difference (± 3 & deg; c), the vulcanization temperature of the product is uniform and the vulcanization degree is consistent
The new process improves the compactness of the product, avoids the quality problems such as product surface cracks, delamination and bubbles, reduces the labor intensity of workers and reduces the post quota
The technical scheme adopted by the invention to achieve the above purpose is a prefabricated rubber runway, which is composed of upper material and lower material
It is characterized in that the composition of upper material and the weight percentage range of each component are 30% 40% of rubber, 30% 35% of rubber powder, 10% 13% of white carbon black, 5% 7% of aluminum silicate, 1
4% of antioxidant, 3% 5% of naphthenic oil, 0
3% 0
5% of ultraviolet absorber, Calcium oxide 4% 6%, polyethylene glycol 1
5%, zinc oxide 1
7% 2
5%, stearic acid 0
4% 0
7%, vulcanization accelerator 0
6% 0
8%, sulfur 0
5% 0
7%, magnesium oxide 0
7% 1%, colorant 1
5% 2%, foaming agent H0 5% 0
7%; The component composition and weight percentage of each component of the lower layer are rubber 17% 18%, rubber powder 32% 36%, active kaolin 7% 9%, active calcium 6% 8%, calcium carbonate 14% 16%, calcium oxide 2% 3%, resin rs-80 1
7% 2%, naphthenic oil 7% 10%, zinc oxide 0
9% 1%, stearic acid 0
25% 0
3%, vulcanization accelerator 0
6% 0
7%, compound urea 0
25% 0
3%, sulfur 0
4% 0
5%, Foaming agent h 0
9% 1%