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1. 发明专利

DE69405702D1 未知
公开(公告)号：DE69405702D1
公开(公告)日：1997-10-23
申请号：DE69405702
申请日：1994-11-28
申请人： KOBE STEEL LTD
发明人： KAWAKAMI HEIJIRO , KATSUBE KOZO , KANESADA YASUYUKI , TAKATSUKA KOHRO , SADAKANE KATSUYUKI
IPC分类号： B21C1/04 , B21C3/14 , B21C9/00 , B21C9/02
摘要： Disclosed is a method of drawing a metal wire to a specified diameter using a continuous dry drawing apparatus including a plurality of die units disposed in series, each of the die unit being composed of a dry lubricant unit for applying a dry lubricant on the surface of a metal wire and a die provided on the downstream side of the dry lubricant unit, the method comprising an intermediate coating process of forming a coating film on the surface of the metal wire for enhancing the picking-up of a dry lubricant for subsequent die-drawing, in at least one of the spaces between adjacent die units. With this method, seizure of the die is prevented and the drawing speed is significantly enhanced.

2. 发明专利

DE69405702T2 未知
公开(公告)号：DE69405702T2
公开(公告)日：1998-03-26
申请号：DE69405702
申请日：1994-11-28
申请人： KOBE STEEL LTD
发明人： KAWAKAMI HEIJIRO , KATSUBE KOZO , KANESADA YASUYUKI , TAKATSUKA KOHRO , SADAKANE KATSUYUKI
IPC分类号： B21C1/04 , B21C3/14 , B21C9/00 , B21C9/02
摘要： Disclosed is a method of drawing a metal wire to a specified diameter using a continuous dry drawing apparatus including a plurality of die units disposed in series, each of the die unit being composed of a dry lubricant unit for applying a dry lubricant on the surface of a metal wire and a die provided on the downstream side of the dry lubricant unit, the method comprising an intermediate coating process of forming a coating film on the surface of the metal wire for enhancing the picking-up of a dry lubricant for subsequent die-drawing, in at least one of the spaces between adjacent die units. With this method, seizure of the die is prevented and the drawing speed is significantly enhanced.

3. 发明专利

CA1309318C COIL OF TAPERED WIRE 未知
公开(公告)号：CA1309318C
公开(公告)日：1992-10-27
申请号：CA542432
申请日：1987-07-17
申请人： KOBE STEEL LTD
发明人： KAWAKAMI HEIJIRO , KAWAGUCHI YASUNOBU , KATSUBE KOZO , MURAHASHI MAMORU , TAKADA SUSUMU
IPC分类号： B21F35/00 , B21C47/10 , B21F3/00 , B21F3/02 , B21F23/00 , B65H55/00 , F16F1/04
摘要： A coil of taper wire for forming coil springs, formed by winding substantially in concentric loops a quench-hardened and tempered taper wire having a successive arrangement of taper wire segments each consisting of a thick section, two thin sections and two taper sections connecting the thin sections to the opposite ends of the thick section, respectively. The taper wire is subjected to a preforming action immediately before being wound in loops on a winding drum, to form plastic bends in the thick section and plastic bends of a radius of curvature greater than that of the plastic bends in the thick sections so that the taper wire is wound substantially uniform, concentric circular loops on a winding drum. When the taper wire is unwound from the coil and is subjected to a straightening process of a fixed straightening arrangement of a series of straightener rollers before being coiled in taper wire coil springs on a coil spring forming mill, the thick sections undergo a straightening action greater than that acts on the thin sections, so that the taper wire unwound from the coil of taper wire is straightened in a substantially straight taper wire and thereby the taper wire is coiled in taper wire coil springs having correct size and uniform shape.

4. 发明专利

CA2103111A1 HOT ROLLED STEEL WIRE ROD, FINE STEEL WIRE AND TWISTED STEEL WIRE, AND MANUFACTURE OF THE FINE STEEL WIRE 未知
公开(公告)号：CA2103111A1
公开(公告)日：1994-05-17
申请号：CA2103111
申请日：1993-11-15
申请人： KOBE STEEL LTD
发明人： MINAMIDA TAKAAKI , KATSUBE KOZO , MIZUTANI KATSUJI , MURAHASHI MAMORU , OCHIAI KENJI , OKI YASUHIRO , IBARAKI NOBUHIKO , SHOHZAKI TAMOTSU , MITANI YOSHIHIRO
IPC分类号： B21C3/14 , B21C1/00 , B21C37/04 , C21D8/06 , C22C38/00 , C22C38/20
摘要： Disclosed are a steel wire rod for manufacturing a fine steel wire excellent in drawability, strength and toughness in which the contents of components such as C, Si, Mn, P, S, Al, Cu are specified, the contents of one or more of elements selected from a group consisting of Cr, W, Ni and Mo are also specified, and in which the balance is essentially Fe and inevitable impurities and for which, the composition of non-metallic inclusions of oxides is also specified; a fine steel wire obtained by drawing of the steel wire rod; and a twisted wire cord made by twisting of the fine steel wires. Further, disclosed is a die schedule for manufacturing the above fine steel wire. Thus, there can be provided a steel wire rod with excellent drawability and which does not break during drawing; a fine steel wire excellent in strength and toughness obtained from the steel wire rod; and a twisted wire cord obtained by twisting together lengths of the fine steel wires.

5. 发明专利

DE3779526D1 未知
公开(公告)号：DE3779526D1
公开(公告)日：1992-07-09
申请号：DE3779526
申请日：1987-07-20
申请人： KOBE STEEL LTD
发明人： KAWAKAMI HEIJIRO , KAWAGUCHI YASUNOBU , KATSUBE KOZO , MURAHASHI MAMORU , TAKADA SUSUMU
IPC分类号： B21C37/04 , C21D8/06
摘要： A taper rod producing process by which a taper rod having a profile very near to an aimed profile can be produced with high accuracy. According to the process, during working of a wire diameter gradually decreasing portion of a taper rod in which the diameter of a stock gradually decreases in a feeding direction of the stock, the drawing length of the stock from starting to ending of acceleration of variable speed feeding means is made greater than an aimed length of the wire diameter gradually decreasing portion, and during working of a wire diameter gradually increasing portion in which the diameter of the stock gradually increases, the drawing length of the stock from starting to ending of deceleration of the variable speed feeding means is made smaller than an aimed length of the wire diameter gradually increasing portion of the taper rod.

6. 发明专利

DE69325970T2 未知
公开(公告)号：DE69325970T2
公开(公告)日：2000-05-04
申请号：DE69325970
申请日：1993-11-15
申请人： KOBE STEEL LTD
发明人： MINAMIDA TAKAAKI , KATSUBE KOZO , MIZUTANI KATSUJI , MURAHASHI MAMORU , OCHIAI KENJI , OKI YASUHIRO , IBARAKI NOBUHIKO , SHOHZAKI TAMOTSU , MITANI YOSHIHIRO
IPC分类号： B21C1/00 , B21C37/04 , B21C3/14 , C21D8/06 , C22C38/00 , C22C38/20
摘要： Disclosed are a steel wire rod for manufacturing a fine steel wire excellent in drawability, strength and toughness in which the contents of components such as C, Si, Mn, P, S, Al, Cu are specified, the contents of one or more of elements selected from a group consisting of Cr, W, Ni and Mo are also specified, and in which the balance is essentially Fe and inevitable impurities and for which, the composition of non-metallic inclusions of oxides is also specified; a fine steel wire obtained by drawing of the steel wire rod; and a twisted wire cord made by twisting of the fine steel wires. Further, disclosed is a die schedule for manufacturing the above fine steel wire. Thus, there can be provided a steel wire rod with excellent drawability and which does not break during drawing; a fine steel wire excellent in strength and toughness obtained from the steel wire rod; and a twisted wire cord obtained by twisting together lengths of the fine steel wires.

7. 发明专利

DE69325970D1 未知
公开(公告)号：DE69325970D1
公开(公告)日：1999-09-16
申请号：DE69325970
申请日：1993-11-15
申请人： KOBE STEEL LTD
发明人： MINAMIDA TAKAAKI , KATSUBE KOZO , MIZUTANI KATSUJI , MURAHASHI MAMORU , OCHIAI KENJI , OKI YASUHIRO , IBARAKI NOBUHIKO , SHOHZAKI TAMOTSU , MITANI YOSHIHIRO
IPC分类号： B21C1/00 , B21C37/04 , B21C3/14 , C21D8/06 , C22C38/00 , C22C38/20
摘要： Disclosed are a steel wire rod for manufacturing a fine steel wire excellent in drawability, strength and toughness in which the contents of components such as C, Si, Mn, P, S, Al, Cu are specified, the contents of one or more of elements selected from a group consisting of Cr, W, Ni and Mo are also specified, and in which the balance is essentially Fe and inevitable impurities and for which, the composition of non-metallic inclusions of oxides is also specified; a fine steel wire obtained by drawing of the steel wire rod; and a twisted wire cord made by twisting of the fine steel wires. Further, disclosed is a die schedule for manufacturing the above fine steel wire. Thus, there can be provided a steel wire rod with excellent drawability and which does not break during drawing; a fine steel wire excellent in strength and toughness obtained from the steel wire rod; and a twisted wire cord obtained by twisting together lengths of the fine steel wires.

8. 发明专利

CA1278776C PRODUCTION OF A TAPER ROD 未知
公开(公告)号：CA1278776C
公开(公告)日：1991-01-08
申请号：CA542433
申请日：1987-07-17
申请人： KOBE STEEL LTD
发明人： KAWAKAMI HEIJIRO , KAWAGUCHI YASUNOBU , KATSUBE KOZO , MURAHASHI MAMORU , TAKADA SUSUMU
IPC分类号： B21C37/04 , C21D8/06
摘要： A taper rod producing process by which a taper rod having a profile very near to an aimed profile can be produced with high accuracy. According to the process, during working of a wire diameter gradually decreasing portion of a taper rod in which the diameter of a stock gradually decreases in a feeding direction of the stock, the drawing length of the stock from starting to ending of acceleration of variable speed feeding means is made greater than an aimed length of the wire diameter gradually decreasing portion, and during working of a wire diameter gradually increasing portion in which the diameter of the stock gradually increases, the drawing length of the stock from starting to ending of deceleration of the variable speed feeding means is made smaller than an aimed length of the wire diameter gradually increasing portion of the taper rod.

9. 发明专利

DE3765517D1 未知
公开(公告)号：DE3765517D1
公开(公告)日：1990-11-15
申请号：DE3765517
申请日：1987-07-20
申请人： KOBE STEEL LTD
发明人： KAWAKAMI HEIJIRO , KAWAGUCHI YASUNOBU , KATSUBE KOZO , MURAHASHI MAMORU , TAKADA SUSUMU
IPC分类号： B21F35/00 , B21C47/10 , B21F3/00 , B21F3/02 , B21F23/00 , B65H55/00 , F16F1/04
摘要： A coil of taper wire for forming coil springs, formed by winding substantially in concentric loops a quench-hardened and tempered taper wire having a successive arrangement of taper wire segments each consisting of a thick section (4), two thin sections (5) and two taper sections (6) connecting the thin sections to the opposite ends of the thick section, respectively. The taper wire is subjected to a preforming action immediately before being wound in loops on a winding drum, to form plastic bends in the thick sections and plastic bends of a radius (R2) of curvature greater than (R1) that of the plastic bends in the thick sections so that the taper wire is wound substantially uniform, concentric circular loops on a winding drum. When the taper wire is unwound from the coil and is subjected to a straightening process of a fixed straightening arrangement of a series of straightener rollers before being coiled in taper wire coil springs on a coil spring forming mill, the thick sections undergo a straightening action greater than that acts on the thin sections, so that the taper wire unwound from the coil of taper wire is straightened in a substantially straight taper wire and thereby the taper wire is coiled in taper wire coil springs having correct size and uniform shape.

10. 发明专利

JPS6144610B2 失效
公开(公告)号：JPS6144610B2
公开(公告)日：1986-10-03
申请号：JP1533780
申请日：1980-02-08
申请人： KOBE STEEL LTD
发明人： KAWAKAMI HEIJIRO , SATO KAZUO , KATSUBE KOZO , MATSUDA SHIGEO , ODA YOSHIFUMI
IPC分类号： B21C1/00 , B23D79/12 , B24B27/033

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