Wire rods with superior drawability and manufacturing method therefor
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 24, 2001
Grant Date -
N/A
app pub date -
Oct 15, 1999
filing date -
Oct 16, 1998
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A method for manufacturing wire rods and steel wire for use in making bead wires, wire ropes and springs is disclosed. That is, high drawability wire rods and a manufacturing method therefor are disclosed, in which the wire drawing is possible without carrying out patenting (an intermediate heat treatment). The high drawability wire rods for making high strength steel wire includes a steel containing, in wt %, 0.4-0.65% of C, 0.1-1.0% of Si, 0.1-1.0% of Mn, 0.3% or less of Cr, 100 ppm or less of B, Fe and other unavoidable impurities. The steel further contains 0.02% or less of one or more elements selected from a group consisting of Ti, Nb and V. The steel has a degenerated pearlite structure with pro-eutectoid ferrite of 10% or less, the remaining part being a discontinuously formed cementite. A billet having the above composition is hot-rolled, and is cooled at a cooling rate of 10-30.degree. C./sec.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully