The use of rubber tire reclaimed rubber production board can greatly reduce production costs, but the production of reclaimed rubber sheet product surface may appear pitting. Why is this? Many products companies will think this is the fault of renewable rubber, it is not. Whether natural rubber, synthetic rubber, or recycled rubber in the production of rubber products may have this phenomenon.
1, in the choice of tire reclaimed rubber or small material check whether there are impurities inside, to eliminate the source of the pitting; If the surface of the bubble bubbles, you can add a suitable rubber brightener, not only can increase the surface brightness of rubber products, at the same time Can also absorb the water in the rubber, to defoaming effect.
2, Properly adjust the vulcanization temperature of the rubber plate to reduce the use of vulcanizing agents and accelerators in the formula, because vulcanization temperature is too high, excessive excipients will result in the phenomenon of regenerated rubber plate pitting.
3, in the production of rubber products added to the mixer to be added in the mixer, increase the mixing time, so that the rubber and small material compatibility, or uneven distribution of small pieces of material, can also cause local emergence of rubber sheet surface Point phenomenon.
4, Abrasives in the polishing, the surface pitting will also cause the emergence of plexiglass surface regeneration pitting, which is due to the mold grinding is not in place, you need to continue grinding until the pitted to eliminate so far.
5, It is generally considered that the fineness of the reclaimed rubber produces a smoother and more shiny surface. Therefore, it is necessary to select a suitable reclaimed rubber according to the performance requirements of the rubber sheet, so that the performance can be achieved and the cost can be minimized. In this Xiaobian to mention a "nonsense", general extrusion rubber products required minimum fineness of reclaimed rubber to more than 60 heads.
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