Storage, handling and weighing of raw materials for rubber  

• Special care in storage;

• Weighing accuracy;

• Traceability of raw materials and weighing batches;

• Types of weighing;

  • manual

  • semi automatic

  • automatic

• Quality control in weighing;

• Main problems and solutions.

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  Mixture  

• Basic concepts about mixing;

• Types of mixers;

  • open mixer

  • closed mixer

• Main components of the closed mixer;

• Types of closed mixers and their rotors (Kneader, Banbury, Interconecto, Tandem);

• Improvements in the main components of the closed mixer;

• Peripheral systems;

• Feeding Systems-Feeding Systems;

• Process variables (time, temperature, pressure, energy);

• Discharge and cooling systems-Downstream and Batch-Off;

• Main configurations of a mixing room;

• Main mixing techniques in closed mixers;

• Mixtures of compounds with silica and silane;

• Continuous mixer;

• Quality control in the mixture;

• Main problems and solutions.

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  calendering  

• Main components of the calender;

• Types of calenders and operations;

• Process variables (temperature, speed);

• Peripheral systems and automation;

• Power systems;

• Discharge and cooling systems;

• Main calendering line configurations;

• Quality control in calendering;

• Main problems and solutions.

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  Vulcanization  

• Basic concepts about vulcanization and rheometry;

• Types of vulcanization processes;

• Compression molding, transfer, injection, internal pressure;

• Other systems (heat tunnel, immersion, vulcanization baths, autoclave, rotocure);

• Compression molding;

• Main components of a compression vulcanization press;

• Types of vulcanizing presses;

• Process variables (time, temperature, pressure, preheating, degassing);

• Power systems;

• Unloading systems;

• Vulcanization quality control;

• Determination of the optimal vulcanization time;

• Techniques to reduce vulcanization time;

• Main problems and solutions.