公开(公告)号：EP2905353A4

公开(公告)日：2016-03-30

申请号：EP13843683

申请日：2013-10-03

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

发明人： KOSAKA MAKOTO ,  OHASHI SHOUICHI ,  NISHIDA SEIKI ,  MURAO MASATSUGU ,  MURAO KOUICHI ,  OYAMADA KEN ,  IKEBATA SYUNYA

IPC分类号： C22C38/00 ,  B21B1/16 ,  B21C1/00 ,  C21D8/06 ,  C22C38/02 ,  C22C38/04 ,  C22C38/18 ,  C22C38/32 ,  G02B6/44

CPC分类号： G02B6/443 ,  B21B1/16 ,  B21C1/003 ,  C21D8/06 ,  C21D8/065 ,  C21D2211/005 ,  C21D2211/009 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/18 ,  C22C38/32 ,  G02B6/4427

摘要： There is provided a deformed steel wire includes, as a chemical component, by mass%; C: 0.30% to 1.10%, Si: 0.10% to 1.50%, and Mn: 0.20% to 1.50%, and the balance consists of Fe and unavoidable impurities, in which a metallographic structure is a ferrite-pearlite structure or a pearlite structure, integration degrees of a crystal orientation in a longitudinal direction of a thickness center area and a surface area are in a range of 2.0 to 4.0, an absolute value of a difference in the integration degree between an inner surface and an outer surface of the surface area is 0.3 or less, an integration degree of a crystal orientation in a thickness direction of the thickness center area is in a range of 1.2 to 3.8, and a dimensional accuracy index is in a range of 0.5 to 2.0.

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。