Introduction to rubber processing and safety （介绍橡胶加工和安全）.pdfVIP

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. A rubber compounder can typically use between 100 and 200 different ingredients to mix a range of formulations. The finished mixture is known as compound and is the material that is processed into rubber articles by moulding, extrusion, calendering etc. Carbon black storage handling area, bulk bag emptyin