Basic steps of rubber mixing

      If it is an indispensable part to make rubber raw rubber into a variety of mature rubber products, what are the links of rubber mixing? The following is a professional rubber manufacturer to introduce you to the four major steps of rubber mixing.

      First, the choice of mixing materials, in the process of mixing, due to the low cohesion between the rubber molecules, the high-strength and high-temperature silica filler becomes the most important compounding agent for rubber. When other compounding agents are used, Need to consider the requirements of high temperature resistance, that is, under the application conditions of rubber, they should not be volatilized, decomposed, charred or discolored, etc. In order to maintain the heat resistance of raw rubber, the silicon bond is reduced by acid and alkali, and the mixture is broken and mixed. To prevent the introduction of foreign acids and alkalis, it is necessary to remove the acidic substances generated by the decomposition of the peroxide vulcanizing agent in time.
      Second, in the mixing of the raw rubber and other ingredients into the vacuum kneader, the temperature is not high at the beginning, during the stirring process, by the temperature of the temperature slowly reached 155-160 degrees, It will take another half hour.

     Third, put the cooked glue in the open mill to smooth and roll into a roll. Just take care not to get dirty. The number of rolls only needs 2-3 rings.
     Fourth, after smoothing, it should be cooled. The time is about 3-4 hours. Then, through the match net, the glue is filtered again. The purpose is to filter out some solid materials inside the glue.