公开(公告)号：EP2655677B1

公开(公告)日：2018-06-06

申请号：EP11815567.0

申请日：2011-12-21

申请人： NV Bekaert SA

发明人： AGRESTI, Simone ,  CIANCIOSI, Federico ,  PIERALLI, Andrea

IPC分类号： C21D9/52 ,  C21D9/573 ,  C21D9/64 ,  B21C37/04

CPC分类号： C21D9/5732 ,  B21C37/04 ,  C21D9/525 ,  C21D9/64

摘要： The process for manufacturing a steel wire comprises: providing a steel wire; austenitizing said steel wire; patenting said steel wire; drawing said steel wire. The patenting of said steel wire comprises: slow cooling said steel wire to a first predetermined temperature; quick cooling the steel wire to a second predetermined temperature; keeping said steel wire at said second predetermined temperature. During the slow cooling, the steel wire substantially keeps its austenite structure unaltered; with the subsequent quick cooling, the steel wire is taken to the best conditions in order to start the phase change in which the austenite structure is transformed into a pearlite structure.