Process of Rubber Manufacturing
ď Ź ď Ź
MD Merchem Merchem Company
Process
The methods of manufacturing rubber are similar for all producers World-Wide. Variances however, may occur regarding specific compounds, each manufacturer’s production methods and levels of sophistication. MD Merchem Merchem Company Review
Formulation and Mixing of Rubber Compounds ď Ź
VIP-Polymers process a variety of rubber materials, both natural and synthetic, into compounds suitable to face the most challenging performance and environmental criteria. Natural rubbers are supplied from traditional countries in the Far East such as Malaysia and Indonesia. Synthetic rubber is primarily manufactured at chemical plants in Industrial Europe and the U.S.A. On its own, basic rubber is of little use and must be formulated to make it suitable for manufacture and to ensure desired properties in finished products.
How rubber products are manufactured
Industrial Rubber components are usually manufactured by one of the following methods: Injection Moulding - Using strip compound produced as previously described. Compression Moulding - Requires secondary operations to process material into suitable forms of the correct weight and/or shape to suit particular products. Extrusion - Using strip compound produced as previously described. Injection and Compression moulding requires highly accurate single or multi-cavity moulds, typically made
Injection Moulding
Injection moulding has a number of elements operating automatically on timed sequences with moulding temperatures usually between 165°C and 200°C.
MD Merchem Merchem Company
Review
Compression Moulding
This simpler process is slower in operation than injection moulding in that special uncured preformed and weighed blanks are used. The process employs hydraulic presses with preheated platens at (150-170°C) that in turn heat up the mould. MD Merchem Merchem Company
Review
Extrusion
Extrusion is used for either of two functions: Manufacture of long lengths of cured sections for fabrication of items too large for injection or compression moulding. The production of blanks for compression moulding. MD Merchem Merchem Company Review
Continuous Vulcanisation
VIP-Polymers utilise a manufacturing process known as Continuous Vulcanisation for production of cured extrusion for conversion into certain finished products as follows. Two items of machinery are required for this process: An extruder with a barrel and screw, and a die of correct cross-section at the outlet end. A heating source to cure the rubber which may be one of the following: A hot air oven.
Continuous Vulcanisation
The "Continuous Vulcanisation" process is as follows: Strip rubber is fed into the extruder. It is then plasticised by the screw and extruded through the die orifice. The extruder operates under controlled conditions of temperature and screw speed. The continuous extrudate is passed down the heating medium which causes it to cure. Again, speed and temperature are accurately controlled. The emerging cured profile is cooled and cut to length automatically or rolled onto drums for
MD Merchem Merchem Company Review