公开(公告)号：EP3093134A4

公开(公告)日：2017-12-27

申请号：EP15734871

申请日：2015-01-08

申请人： NIPPON STEEL & SUMITOMO METAL CORP ,  HIEN ELECTRIC IND LTD ,  NAMITEI CO LTD

发明人： CHIKIRI KAZUYOSHI ,  KOBAYASHI TOSHIYUKI ,  SUGIYAMA TOSHIO ,  YOSHIDA MAKOTO ,  MURAO MASATSUGU ,  MURAO KOICHI ,  OYAMADA KEN ,  OZAKI MITSUNORI ,  YATABE HIROSHI ,  ISO ARATA ,  OOBA HIROSHI

IPC分类号： B32B7/12 ,  B29C47/02 ,  B29L9/00 ,  B32B1/00 ,  B32B15/08 ,  C08K7/02 ,  C08L77/00 ,  C08L77/02

CPC分类号： B32B1/00 ,  B29C47/0021 ,  B29C47/004 ,  B29C47/0064 ,  B29C47/025 ,  B29C47/1045 ,  B29C47/14 ,  B32B7/12 ,  B32B15/02 ,  B32B15/08 ,  B32B15/18 ,  B32B27/20 ,  B32B27/34 ,  B32B2262/10 ,  B32B2262/101 ,  B32B2262/106 ,  B32B2307/558 ,  B32B2597/00 ,  C09D177/02 ,  D07B2201/2002 ,  D07B2201/2003 ,  D07B2201/2012 ,  D07B2201/2084 ,  D07B2401/2025 ,  C08K7/06 ,  C08K7/14 ,  C08L63/00

摘要： A resin-coated high-tension flat steel wire includes a high-tension flat steel wire and a fiber-reinforced polyamide resin coated layer. A shape of the high-tension flat steel wire when viewed from a section perpendicular to a longitudinal direction thereof is a rectangular shape including curved portions at four comers thereof. When, among four straight lines that form the rectangular section, the ranges from both end points of the straight lines that form long sides to one fourth of the length of the straight lines are respectively defined as one-fourth segments, a shape of the fiber-reinforced polyamide resin coated layer in the rectangular section includes a mountain shape having an apex within each of the one-fourth segments, and includes a minimum point, where the thickness of the fiber-reinforced polyamide resin coated layer is the minimum, between the apex and both the ends within each of the one-fourth segments.

公开(公告)号：EP2993246A4

公开(公告)日：2017-01-04

申请号：EP14791514

申请日：2014-04-22

申请人： NIPPON STEEL & SUMITOMO METAL CORP ,  NAMITEI CO LTD

发明人： OOBA HIROSHI ,  YATABE HIROSHI ,  ISO ARATA ,  MANABE TOSHIYUKI ,  MURAO MASATSUGU ,  MURAO KOUICHI ,  OYAMADA KEN ,  IKEBATA SYUNYA ,  OZAKI MITSUNORI

IPC分类号： C22C38/00 ,  C21D9/52 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/12 ,  C22C38/14 ,  C22C38/16 ,  C22C38/18 ,  C22C38/20 ,  C22C38/24 ,  C22C38/28 ,  C22C38/32 ,  C22C38/54 ,  D07B1/06

CPC分类号： C22C38/54 ,  C21D9/525 ,  C21D2211/009 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/12 ,  C22C38/14 ,  C22C38/16 ,  C22C38/18 ,  C22C38/20 ,  C22C38/24 ,  C22C38/28 ,  C22C38/32 ,  D07B1/066 ,  D07B2201/2003

摘要： A flat steel wire has a rectangular shape with rounded corners when a cross section perpendicular to a longitudinal direction is viewed. In the flat steel wire: a short side of the cross section is 2 mm to 7 mm; a long side of the cross section is longer than 8 mm to 56 mm; a ratio of the long side to the short side is more than 4 to 8; a tensile strength is 1900 MPa or more; and a twisting value is 12 times or more.

摘要翻译： 当观察垂直于纵向方向的横截面时，扁钢丝具有圆角，具有圆角。 在扁钢丝中：横截面的短边为2mm至7mm; 横截面的长边长度大于8mm至56mm; 长边与短边的比例大于4至8; 拉伸强度为1900MPa以上; 扭转值为12倍以上。

公开(公告)号：EP3121305A4

公开(公告)日：2017-09-20

申请号：EP15765596

申请日：2015-03-20

申请人： NIPPON STEEL & SUMITOMO METAL CORP

发明人： OOBA HIROSHI ,  TAKAHASHI YUKIHIRO ,  NISHIKAWA YOSHITAKA

IPC分类号： C22C38/00 ,  C21D1/46 ,  C21D8/06 ,  C21D9/52 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/18 ,  C22C38/40 ,  C22C38/44 ,  C22C38/46 ,  C22C38/50 ,  C22C38/54

CPC分类号： C21D9/525 ,  C21D1/46 ,  C21D8/06 ,  C21D8/065 ,  C21D9/52 ,  C21D2211/003 ,  C22C38/00 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/18 ,  C22C38/40 ,  C22C38/44 ,  C22C38/46 ,  C22C38/50 ,  C22C38/54

摘要： The present invention provides a steel wire rod with stable workability. The steel wire rod has steel components containing, by mass%, C: 0.20 to 0.60%, Si: 0.15 to 0.30%, Mn: 0.25 to 0.60%, P: ‰¤0.020%, S: ‰¤0.010%, and a balance of Fe and unavoidable impurities, and an internal microstructure including cementite, in which by number ratio, 80% or more of the cementite in a cross-section vertical to a longitudinal direction of the wire rod has a short axis of 0.1 µm or less and a ratio of a long axis to the short axis, defined as an aspect ratio, of 2.0 or less.

摘要翻译： 本发明提供一种加工性稳定的钢线材。 钢线材具有以质量％计含有C：0.20〜0.60％，Si：0.15〜0.30％，Mn：0.25〜0.60％，P：≥0.020％，S：≤0.010％，a 余量的Fe和不可避免的杂质，以及含有渗碳体的内部组织，其中，以数量比计，与线材的长度方向垂直的截面中的渗碳体的80％以上具有0.1μm以下的短轴 并且定义为纵横比的长轴与短轴之比为2.0或更小。

公开(公告)号：EP2990499A4

公开(公告)日：2017-01-04

申请号：EP14788178

申请日：2014-04-23

申请人： NIPPON STEEL & SUMITOMO METAL CORP

发明人： OOBA HIROSHI ,  ISO ARATA ,  TADA TATSUSEI ,  MANABE TOSHIYUKI

IPC分类号： C22C38/00 ,  B21B3/00 ,  C21D1/613 ,  C21D8/06 ,  C21D9/00 ,  C21D9/52 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/12 ,  C22C38/14 ,  C22C38/24 ,  C22C38/28 ,  C22C38/32

CPC分类号： C21D8/06 ,  C21D1/613 ,  C21D9/0075 ,  C21D9/525 ,  C21D2211/009 ,  C22C38/001 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/12 ,  C22C38/14 ,  C22C38/24 ,  C22C38/28 ,  C22C38/32

摘要： A wire rod according to the present invention includes a predetermined chemical composition and the remainder thereof includes Fe and impurity, wherein the average value of a grain size of a pearlite block in a cross section perpendicular to a wire rod axial direction is 23µm or less, and wherein a number density of the pearlite blocks having a grain size of 40µm or more in the cross section perpendicular to the wire rod axial direction is 0 to 20 pieces/mm 2 .