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Confident start - First stage of crushing
Over past three centuries, evolution of ore-grinding mills has evolved from wooden barrels with manual drive to complex structures with a drum diameter of over 14,0 m, a capacity of more than 36,000 kW andautomatic control of technological processes - respectively, the evolution of the protection of the drum from wooden beams and metal plates to modern polymer composites.
Since the second half of the last century rubber was used as protective lining, which was due to its unique properties:
- ability to large reversible deformations,
- large energy dissipation,
- abrasion-fatigue wear resistance and a high price-quality ratio index.
Especially important is the ability to dissipate ( to absorb energy); it is this property that underlies such an important quality as resistance to fatigue and wear.
Developments in field of creating rubbers with such properties make up a significant part of costs of many world firms.
Usually recipe of rubbers and technology of making lining are carefully concealed and information about them is not available in periodical literature. Therefore, number of firms that produce high-quality products in services market is generally limited.
