Transcription of Introduction to rubber processing and safety issues
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Introduction to rubber processing and safety issues
Introduction to rubber processing and safety issues This section provides details of the mechanical processes involved in the production of various types of rubber goods. Details are included of the various safety and fire and explosion hazards but there are only brief references made to the health risks. For information on health risks see health and safety topics. The industry uses very powerful machinery with the potential to cause fatal and serious injuries. There are established industry safeguarding standards for two-roll mills, internal mixers and calenders. Many serious accidents take place during repairs or to clear blockages etc. and there must be procedures in place to ensure that safe interventions take place. Contents Compounding (including powder handling, mixing and milling) Extrusion Calendering Cloth coating Fabrication (including tank lining, roller covering, and hose winding) Vulcanisation (including presses, autoclaves and continuous vulcanisation) Latex processing Polyurethanes (including PU foam production, reconstituted foam and conversion and rigid urethanes) Tyre building Tyre retreading Compounding - powder handling, mixing and milling Introduction Compounding involves the measuring and mixing together of raw rubber , process oils, carbon black, bulk fillers, and rubber chemicals in pre-determined proportions, termed formulations.
screw. They produce continuous extruded sections such as cable covering. Single screw versions are most common but twin or triple screw extruders may be used for comp lex products such as cable sheathing where they may be several layers of compound (co-extrusion). Screw extruders can be either hot fed, with warmed pre-mixed rubber, or cold fed.
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