Title:
WIRE, STEEL WIRE, AND METHOD FOR MANUFACTURING STEEL WIRE
Document Type and Number:
WIPO Patent Application WO/2018/212327
Kind Code:
A1
Abstract:
A wire according to an embodiment of the present invention is configured such that: the wire has a chemical composition within a prescribed range; in both a surface layer part and a center part, the main structure is a pearlite structure; the surface area ratio of a ferrite structure is 45% or less, and the surface area ratio of a non-pearlite and non-ferrite structure is 5% or less; the sub-boundary density ρ1 when the angular difference in crystal orientation for lamellar ferrite within the pearlite structure is greater than or equal to 2° and less than 15° is 70/mm ≤ ρ1 ≤ 600/mm, and the density ρ2 of high angle boundaries where the angular difference in ferrite crystal orientation within the entire structure is 15° or greater is 200/mm or greater.
Inventors:
TESHIMA TOSHIHIKO (JP)
MATSUI NAOKI (JP)
ISO ARATA (JP)
MATSUI NAOKI (JP)
ISO ARATA (JP)
Application Number:
PCT/JP2018/019306
Publication Date:
November 22, 2018
Filing Date:
May 18, 2018
Export Citation:
Assignee:
NIPPON STEEL & SUMITOMO METAL CORP (JP)
International Classes:
C22C38/00; C22C38/04; C22C38/34; C21D8/06; C21D9/52
Domestic Patent References:
| WO2012132821A1 | 2012-10-04 | |||
| WO2016088803A1 | 2016-06-09 |
Foreign References:
| JP2006241528A | 2006-09-14 | |||
| JPH11315349A | 1999-11-16 | |||
| JP2007297674A | 2007-11-15 |
Attorney, Agent or Firm:
TANAI Sumio et al. (JP)
Download PDF:
Previous Patent: CONTROL DEVICE FOR AUTOMATIC TRANSMISSION
Next Patent: METHOD FOR CONTROLLING DISCHARGE-TYPE MULTIDRUG RESISTANT PLANT DISEASES
Next Patent: METHOD FOR CONTROLLING DISCHARGE-TYPE MULTIDRUG RESISTANT PLANT DISEASES