Patent ID: 8877105

Claim:
A process for manufacturing an elastomeric tire component comprising the steps of: a) preparing an elongated element comprising a cross-linkable elastomeric material, by the steps comprising: a1) feeding the cross-linkable elastomeric material to an extruding device comprising a plurality of units; and a2) extruding the cross-linkable elastomeric material by means of said extruding device so as to form said elongated element, each of said units having a respective working temperature, each of said units having a respective non-working temperature lower than said working temperature, and each of said units having a respective value of thermal inertia; b) delivering said elongated element onto a building support rotatably moving about a geometrical rotation axis thereof, so that the elongated element is circumferentially applied on the support; c) before extruding said cross-linkable elastomeric material, selecting at least two of the plurality of units and submitting the selected units to a thermal transition carried out by heating said selected units starting from the selected unit having the highest value of thermal inertia sequentially to the selected unit having the lowest value of thermal inertia to reach the respective working temperature of each selected unit, wherein the heating of each sequential unit starts after the heating of the previous unit and d) after extruding said cross-linkable elastomeric material, submitting the selected units to a thermal transition carried out by cooling said selected units starting from the selected unit having the maximum working temperature sequentially to the selected unit having the minimum working temperature to reach the respective non-working temperature of each selected unit, wherein the cooling of each sequential unit starts after the cooling of the previous unit.