公开(公告)号：US07296450B2

公开(公告)日：2007-11-20

申请号：US11179898

申请日：2005-07-11

申请人： Yasuyuki Kuroda ,  Yukihisa Kuriyama ,  Manabu Ueda ,  Hirotoshi Hishida ,  Itsuroh Hiroshige ,  Takashi Motoyoshi

发明人： Yasuyuki Kuroda ,  Yukihisa Kuriyama ,  Manabu Ueda ,  Hirotoshi Hishida ,  Itsuroh Hiroshige ,  Takashi Motoyoshi

IPC分类号： B21D19/00

CPC分类号： B21D22/18 ,  B21C37/16

摘要： A production apparatus for a tapered steel pipe which holds the two ends of the steel pipe by shafts on carriers and moves it in the axial direction while rotating it to draw it to a taper by an intermediate working roll, wherein the shaft of the working roll is inclined 20 to 40 degrees with respect to the axis of the steel pipe and a roll caliber of the working roll is made an outwardly curved surface with little difference in roll peripheral speed; the face plate for mounting the working roll is positioned and supported with respect to the body by a hinge mechanism and is fastened to the body by fastening members; and the bearing of the working roll at the side close to the steel pipe is made smaller than the bearing at the side far from the steel pipe and the two bearings are connected by a tie-rod.

摘要翻译： 一种用于锥形钢管的生产设备，其通过支架上的轴将轴的两端保持在钢管的两端，并沿着轴向移动，同时旋转它，通过中间工作辊将其拉成锥形，其中工作辊的轴 相对于钢管的轴线倾斜20〜40度，工作辊的辊口径成为圆周速度差的向外弯曲面; 用于安装工作辊的面板通过铰链机构相对于主体定位和支撑，并通过紧固构件紧固到主体; 使工作辊在靠近钢管的一侧的轴承比在远离钢管的一侧的轴承小，并且两个轴承通过连杆连接。

公开(公告)号：US20060016234A1

公开(公告)日：2006-01-26

申请号：US11179898

申请日：2005-07-11

申请人： Yasuyuki Kuroda ,  Yukihisa Kuriyama ,  Manabu Ueda ,  Hirotoshi Hishida ,  Itsuroh Hiroshige ,  Takashi Motoyoshi

发明人： Yasuyuki Kuroda ,  Yukihisa Kuriyama ,  Manabu Ueda ,  Hirotoshi Hishida ,  Itsuroh Hiroshige ,  Takashi Motoyoshi

IPC分类号： B21B19/00

CPC分类号： B21D22/18 ,  B21C37/16

摘要： A production apparatus for a tapered steel pipe which holds the two ends of the steel pipe by shafts on carriers and moves it in the axial direction while rotating it to draw it to a taper by an intermediate working roll, wherein the shaft of the working roll is inclined 20 to 40 degrees with respect to the axis of the steel pipe and a roll caliber of the working roll is made an outwardly curved surface with little difference in roll peripheral speed; the face plate for mounting the working roll is positioned and supported with respect to the body by a hinge mechanism and is fastened to the body by fastening members; and the bearing of the working roll at the side close to the steel pipe is made smaller than the bearing at the side far from the steel pipe and the two bearings are connected by a tie-rod.

摘要翻译： 一种用于锥形钢管的生产设备，其通过支架上的轴保持钢管的两端，并在轴向方向上移动，同时旋转它，通过中间工作辊将其拉成锥形，其中工作辊的轴 相对于钢管的轴线倾斜20〜40度，工作辊的辊口径成为圆周速度差的向外弯曲面; 用于安装工作辊的面板通过铰链机构相对于主体定位和支撑，并通过紧固构件紧固到主体; 使工作辊在靠近钢管的一侧的轴承比在远离钢管的一侧的轴承小，并且两个轴承通过连杆连接。

公开(公告)号：US5849116A

公开(公告)日：1998-12-15

申请号：US765949

申请日：1997-01-15

申请人： Akihiro Miyasaka ,  Masaaki Obata ,  Takashi Motoyoshi

发明人： Akihiro Miyasaka ,  Masaaki Obata ,  Takashi Motoyoshi

IPC分类号： C21D8/00 ,  C21D8/10 ,  C22C38/20 ,  C21D8/02

CPC分类号： C21D8/105 ,  C21D8/005 ,  C22C38/20

摘要： A steel material and a steel pipe each exhibiting an excellent corrosion resistance in an environment containing a wet carbon dioxide and a small amount of hydrogen sulfide are produced at low cost and with high productivity, a steel slab which contains, in wt %, 0.01 to 0.6% of Si, 0.02 to 1.8% of Mn, 7.5 to 14.0% of Cr, 1.5 to 4.0% of Cu and 0.005 to 0.1% of Al, which reduces C to not more than 0.02%, N to not more than 0.02%, P to not more than 0.025% and S to not more than 0.01%, and whose balance consists of Fe and unavoidable impurities, is heated to a temperature of 1,100.degree. to 1,300.degree. C., hot rolling is finished at a rolling finish temperature of not less than 800.degree. C. and a cumulative rolling reduction quantity at a temperature not more than 1,050.degree. C. is at least 65%, and cooling is carried out at a cooling rate of less than 0.02.degree. C./sec to at least 500.degree. C. so as to substantially convert the metallic structure to ferrite.

摘要翻译： PCT No.PCT / JP95 / 01428 Sec。 371日期1997年1月15日 102（e）日期1997年1月15日PCT提交1995年7月18日PCT公布。 公开号WO96 / 02678 日期1996年2月1日在低成本，高生产率下，在含有湿二氧化碳和少量硫化氢的环境中显示出优异的耐腐蚀性的钢材和钢管， ，0.01〜0.6％的Si，0.02〜1.8％的Mn，7.5〜14.0％的Cr，1.5〜4.0％的Cu和0.005〜0.1％的Al，将C降低到0.02％以下，N〜 不超过0.02％，P不大于0.025％，S至不大于0.01％，余量由Fe和不可避免的杂质组成，加热至1100〜1300℃，热轧完成 在不低于800℃的轧制终轧温度下，在不高于1050℃的累积压下量为至少65％，冷却速度小于0.02℃ 从而将金属结构基本上转化为铁素体。

公开(公告)号：US06908141B2

公开(公告)日：2005-06-21

申请号：US10469264

申请日：2002-02-26

申请人： Hiroyuki Doi ,  Takashi Motoyoshi ,  Tsutomu Takachi ,  Masanobu Kawase ,  Nobuyasu Yamada

发明人： Hiroyuki Doi ,  Takashi Motoyoshi ,  Tsutomu Takachi ,  Masanobu Kawase ,  Nobuyasu Yamada

IPC分类号： B62D25/04 ,  B60J5/00 ,  B60J5/04 ,  B60R19/03 ,  B60R19/18 ,  B62D21/15

CPC分类号： B60J5/0444 ,  B60R19/18 ,  B60R2019/1826 ,  B62D21/15

摘要： A structural member usable for a car capable of demonstrating excellent flexural strength and absorbed energy performance and, moreover, capable of realizing weight reduction and is a structural member for a car being formed with a high-tensile steel pipe having a material property of not less than 1,400 MPa in tensile strength and not less than 5% in elongation. The structural member has a closed section structure which is provided as the configuration of the cross section perpendicular to the direction of the longitudinal axis. The cross-sectional configuration satisfies the following expression when a is defined as the maximum length of said cross-sectional configuration in the longitudinal direction, when b is defined as the maximum length thereof in the direction perpendicular to said direction, when L is defined as the circumferential length thereof, and when t is defined as the wall thickness of the steel pipe, 0.65≦b/a≦0.75, 0.014≦t/L≦0.020 and preferably, the structural member is disposed so that the longitudinal direction of the cross-sectional configuration of the structural member coincides with the direction of the collision of a car body when the structural member is attached to the car body.

摘要翻译： 可用于能够显示出优异的弯曲强度和吸收能量性能的轿厢的结构构件，并且还能够实现重量减轻，并且是用具有不小于材料特性的高强度钢管形成的汽车结构构件 拉伸强度1400MPa以上，伸长率5％以上。 结构构件具有闭合截面结构，其被设置为垂直于纵向轴线的方向的横截面的构造。 当将b定义为在垂直于所述方向的方向上的最大长度b时，将a定义为所述纵向方向上的所述横截面构造的最大长度时的横截面构造，当L被定义为 其周长，当t定义为钢管的壁厚时，<？in-line-formula description =“In-line formula”end =“lead”？> 0.65 <= b / a <= 0.75 ，<？in-line-formula description =“In-line Formulas”end =“tail”？> <？in-line-formula description =“In-line Formulas”end =“lead”？> 0.014 <= t / L <= 0.020 <？in-line-formula description =“In-line Formulas”end =“tail”？>并且优选地，结构构件被布置成使得结构构件的横截面构造的纵向方向与 当结构构件附接到车身时，车体的碰撞方向。

公开(公告)号：US20050034795A1

公开(公告)日：2005-02-17

申请号：US10658062

申请日：2003-11-10

申请人： Takashi Motoyoshi ,  Hiroto Tanabe ,  Isao Anai ,  Itsurou Hiroshige

发明人： Takashi Motoyoshi ,  Hiroto Tanabe ,  Isao Anai ,  Itsurou Hiroshige

IPC分类号： C21D1/18 ,  C21D1/42 ,  C21D9/08

CPC分类号： C21D9/08 ,  C21D1/18 ,  C21D1/42 ,  C21D9/085 ,  Y02P10/253

摘要： A highly impact-resistant member has a round or square sectional shape, that is excellent in strength and toughness, does not undergo the deterioration of toughness in the vicinity of the welded portion, and a highly impact-resistant steel pipe has a tensile strength TS of 1,700 MPa or more and a yield ratio YR of 72% or less, the yield ratio being the ratio of a 0.1%-proof stress YS to a tensile strength TS (YS/TS). The toughness of the welded portion of the steel pipe is enhanced by controlling the Si amount in the steel of the steel pipe in the range from Mn/8−0.07 to Mn/8+0.07. The steel contains, in mass, 0.19 to 0.35% C, 0.10 to 0.30% Si, 0.5 to 1.60% Mn, not more than 0.025% P, not more than 0.01% S, 0.010 to 0.050% Al, 2 to 35 ppm B and 0.005 to 0.05% Ti as indispensable components.

摘要翻译： 耐冲击性高的构件具有强度和韧性优异的圆形或正方形截面形状，不会在焊接部附近发生韧性劣化，高耐冲击性钢管的拉伸强度TS 为1700MPa以上，屈服比YR为72％以下，屈服比为0.1％保护应力YS与拉伸强度TS（YS / TS）的比例。 通过将钢管中的Si量控制在Mn / 8-0.07〜Mn / 8 + 0.07的范围来提高钢管的焊接部的韧性。 钢中含有0.19〜0.35％的C，0.10〜0.30％的Si，0.5〜1.60％的Mn，不大于0.025％的P，0.01％以下的S，0.010〜0.050％的Al，2〜35ppm的B 和0.005〜0.05％Ti作为不可或缺的成分。