Chloroprene rubber mixing process

The invention discloses a chloroprene rubber mixing process. The chloroprene rubber mixing process comprises the following steps: thin passing and plastifying of chloroprene rubber: the chloroprene rubber is put on an open mill, is weighed and coiled to form a plastified rubber coil after 5 times of thin passing treatment, and is placed overnight; the distance of two rollers of the open mill is controlled within 1-1.5 mm; and the temperature of the rollers is below 50 DEG C; first-stage banburying: after a banbury mixer is heated to 40-50 DEG C, the plastified rubber coil placed overnight is put in the banbury mixer, and scorch retarder is added for mixing 1 minute; reinforcement filling agent is added; and when the temperature is raised up to 71-79 DEG C, softening agent is added for mixing; first-stage rubber discharge: the rubber discharge time is determined according to the temperature and power change to perform the rubber discharge; and the rubber is placed overnight; and second-stage banburying: the mixed rubber placed overnight is put in the banbury mixer again, and vulcanizing agent is added to mix for 60 seconds; and then the rubber discharge is performed to obtain a semi-finished product. The chloroprene rubber mixing process, disclosed by the invention, is smooth in surface, and has no unevenly dispersed ripe particles or other particles.