Loading patent…
AssigneesCompagnie Generale Des Etablissements Michelin, Michelin Recherche et Technique S.A.
InventorsARNAUD VERLEENE, LAURENT BUCHER, OLIVIER GIROUX
Estimating the term…
A steel wire has a microstructure that is completely ferritic, a mixture of ferrite and cementite or a mixture of ferrite and pearlite and has a weight content of carbon C such that C<0.05% and a weight content of chromium Cr such that Cr<12%. The process for drawing the wire comprises: at least one first uninterrupted series of steps of drawing the wire from a diameter D to a diameter d′, at least one second uninterrupted series of steps of drawing the wire of diameter d′ to a diameter d, and one or more intermediate steps between the first and second uninterrupted series of steps of drawing the wire, the wire having a temperature less than or equal to 300° C. during the or each intermediate step.
-29. (canceled)
A process for drawing a steel wire, the steel wire having a microstructure that is selected from the group consisting of completely ferritic, a mixture of ferrite and cementite, and a mixture of ferrite and pearlite, and the wire having a weight content of carbon C such that C<0.05% and a weight content of chromium Cr such that Cr<12%, the process comprising:
A steel wire of diameter d, expressed in mm, and having a microstructure that is selected from the group consisting of completely ferritic, a mixture of ferrite and cementite and a mixture of ferrite and pearlite, wherein the wire has a weight content of carbon C such that C<0.05%, a weight content of chromium Cr such that Cr<12% and a maximum tensile strength R, expressed in MPa, such that R≥A+910.C−600.In(d) with A=200.
Dependencies are inferred from the claim text.