Process for manufacturing elastomeric tire components

Abstract

A process for manufacturing an elastomeric tire component includes the steps of a) preparing an elongated element including a cross-linkable elastomeric material by feeding it to an extruding device having a plurality of units, each having a respective thermal inertia, and b) delivering the elongated element onto a building support, and further includes at least one non-productive step of c) submitting at least one of the units of the extruding device to a thermal transition selected from heating or cooling, substantially reducing the risk of scorching during the thermal transition from and to the non-productive step ranking the units according to their thermal inertia and heating the units starting with the top-ranked unit sequentially to the bottom-ranked unit to reach the respective working temperature or cooling the units starting from the maximum working temperature unit sequentially to the minimum working temperature unit to reach the respective non-working temperature.

Description

technical field [0001] The present invention relates to a method for the manufacture of elastomeric tire components, and more particularly tire components for automobiles. Background technique [0002] In general, tires for automobiles comprise a carcass structure consisting of one or more carcass plies, which are substantially annular in shape and have corresponding annular reinforcements, often referred to as "bead cores". their axially opposite side edges joined by members, said tire further comprising a tread band made of elastomeric material at a radially outer position relative to said carcass structure, interposed between said carcass structure and said belt structure between the tread bands and a pair of axially opposite sidewalls on said carcass structure, each of said sidewalls overlying a so-called tread band shoulder area and positioned at a respective bead core The side portion of the tire extending radially between the beads. [0003] The term "elastomeric ma...

AI Technical Summary

Problems solved by technology

[0018] - Emptying the extrusion by completely ejecting the elastomeric material during a pause is not only costly and time-consuming, but also difficult to achieve, the remaining material remains in the extrusion for a long time and thus changes the quality of the subsequently extruded part ;

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