Method and arrangement for cross-linking or vulcanizing an elongate element
AssigneeMaillefer S.A.
InventorPekka HUOTARI
Life of this patent
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Abstract
The invention relates to a method and arrangement of crosslinking or vulcanizing an elongate element, the method including an extrusion step in which a conductor element is coated by a layer of crosslinkable synthetic material and a crosslinking step in which crosslinking reaction is carried out after the extrusion step. The crosslinking reaction is carried out at first in a first heating zone by heating by heating the coated conductor element in a temperature of 550 degrees Celsius or higher. The first heating zone is located downstream of the extrusion step. After the first heating zone the crosslinking reaction is carried further by heating the coated conductor in a temperature of 200-300 degrees Celsius in a second heating zone.
Claims12
Method of cross-linking or vulcanizing an elongate element, the method comprising an extrusion step in which a conductor element is coated by a layer of cross-linkable synthetic material and a cross-linking step in which cross-linking reaction is carried out after the extrusion step,
- wherein the crosslinking reaction is carried out at first in a first heating zone by heating by heating the coated conductor element in a temperature of 550 degrees Celsius or higher, the first heating zone being located downstream of the extrusion step, and after the first heating zone the crosslinking reaction is carried further by heating the coated conductor in a temperature of 200-300 degrees Celsius in a second heating zone.
Arrangement for crosslinking or vulcanizing an elongate element in which arrangement conductor element is coated by a layer of crosslinkable synthetic material by using an extrusion head and the crosslinking reaction is carried out after the extrusion head in a vulcanization tube, wherein the crosslinking reaction is arranged to be carried out at first in a first heating zone by heating by heating the coated conductor element in a temperature of 550 degrees Celsius or higher, the first heating zone being located downstream of the extrusion head, and after the first heating zone the crosslinking reaction is arranged to be carried further in a second heating zone by heating the coated conductor in a temperature of 200-300 degrees Celsius.
Dependencies are inferred from the claim text.