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PROCESS AND PLANT FOR BUILDING TYRES, GREEN TYRE AND CURED TYRE OBTAINED THEREBY
PROCESS AND PLANT FOR BUILDING TYRES, GREEN TYRE AND CURED TYRE OBTAINED THEREBY
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机译:从而获得的用于建造轮胎,绿色轮胎和实心轮胎的过程和工厂
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摘要
There are described a green tyre, a tyre, a process and a plant for building tyres. The process comprises building a carcass structure (110, 210) and a crown structure (130, 230) comprising a belt structure (140, 240) and a tread band (150, 250), and associating the carcass structure with the crown structure. The building of the crown structure envisages the building of the belt structure on a drum (520) and the deposition of the tread band in a position radially outside the belt structure. The deposition of the tread band comprises the provision of a predetermined elastomeric material (531) in a hot - extrusion device (530), the extrusion from the extrusion device of a band (531) of elastomeric material having a width equal to the predetermined width of the tread band and a thickness smaller than the predetermined thickness of the tread band, and the hot¢deposition of the band onto the belt structure in at least two overlapping layers.
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