KNEADING CONTROL METHOD OF RUBBER MATERIAL

摘要

PROBLEM TO BE SOLVED: To provide a kneading control method of rubber material, which allows efficiently getting a kneaded rubber of stable consistency when kneading the rubber material by a roll kneader.

SOLUTION: The kneading is conducted by controlling change in bank quantity B of a kneaded rubber R, while holding input temperature of the kneaded rubber R discharged from a closed mixer to a roll kneader 1 at 90°C or higher and controlling discharge temperature of a discharged rubber kneaded by the roll kneader 1 at a range of 60°C-80°C. The change in bank quantity B of the kneaded rubber R on the roller 2 is controlled by altering at least one of the followings: conveyor speed of a delivery conveyor belt 10 and a knead back conveyor belt 4, which jointly circulate the kneaded rubber R through the roll kneader 1 and put it in; and length of circulation path which circulates the kneaded rubber R to the roll kneader 1.

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