公开(公告)号：US5618355A

公开(公告)日：1997-04-08

申请号：US556962

申请日：1995-12-12

申请人： Kazuo Koyama ,  Matsuo Usuda ,  Manabu Takahashi ,  Yasuharu Sakuma ,  Shunji Hiwatashi ,  Kaoru Kawasaki

发明人： Kazuo Koyama ,  Matsuo Usuda ,  Manabu Takahashi ,  Yasuharu Sakuma ,  Shunji Hiwatashi ,  Kaoru Kawasaki

IPC分类号： C21D1/18 ,  C21D1/20 ,  C21D8/04 ,  C22C38/02 ,  C22C38/06

CPC分类号： C21D1/185 ,  C21D8/04 ,  C22C38/02 ,  C22C38/06 ,  C21D1/20 ,  C21D2211/001 ,  C21D2211/002 ,  C21D2211/004 ,  C21D2211/005 ,  C21D8/0426 ,  C21D8/0473

摘要： A high-strength steel sheet suitable for deep drawing, characterized by comprising 0.04 to 0.25 mass % of C and 0.3 to 3.0 mass %, in total, of at least one of Si and Al, the steel sheet having multiple phases structure comprising ferrite as a main phase (a phase having the highest volume fraction), not less than 3 vol. % of austenite, and bainite and martensite; said steel satisfying a requirement that a value obtained by dividing volume fraction of Vg (vol. %) of austenite before working by the content of C (mass %) contained in the whole steel, Vg/C, is 40 to 140, a requirement that Vp (volume fraction of austenite at the time of plane strain tensile deformation)/Vs (volume fraction of austenite at the time of shrink flanging deformation) is not more than 0.8, and a requirement represented by the formula220

摘要翻译： PCT No.PCT / JP95 / 00832 Sec。 371 1995年12月12日第 102（e）日期1995年12月12日PCT 1995年4月26日PCT PCT。 WO95 / 29268 PCT出版物 日期：1995年11月2日适用于深拉深的高强度钢板，其特征在于，含有0.04〜0.25质量％的C和0.3〜3.0质量％的Si和Al中的至少一种，所述钢板具有多个 包含铁素体作为主相（具有最高体积分数的相），不小于3体积％的相结构。 ％的奥氏体，贝氏体和马氏体; 所述钢满足以下要求：通过将在整个钢中含有的C（质量％）的含量Vg / C，将工作前奥氏体的Vg（体积％）的体积分数除以40〜140， Vp（平面应变拉伸变形时的奥氏体的体积分数）/ Vs（收缩凸缘变形时的奥氏体的体积分率）为0.8以下，由式220表示的要求

公开(公告)号：US06375765B1

公开(公告)日：2002-04-23

申请号：US09509278

申请日：2000-03-27

申请人： Manabu Takahashi ,  Osamu Akisue ,  Koji Kishida ,  Matsuo Usuda ,  Tohru Yoshida

发明人： Manabu Takahashi ,  Osamu Akisue ,  Koji Kishida ,  Matsuo Usuda ,  Tohru Yoshida

IPC分类号： C22C3842

CPC分类号： C22C38/004 ,  C21D8/0226 ,  C22C38/001 ,  C22C38/04 ,  C22C38/06

摘要： A thin ferritic steel sheet having an excellent shape fixability capable of being used for bending is provided, comprising: at least 0.027 to less than 0.05 mass % of C, 0.01 to 1.0 mass % of Si, 0.01 to 2.0 mass % of Mn, not more than 0.15 mass % of P, not more than 0.03 mass % of S, 0.01 to 0.1 mass % of Al, not more than 0.01 mass % of N, not more than 0.007 mass % of O, the balance being Fe and inevitable impurities, wherein a ratio of presence of {100} planes parallel with a face of the steel sheet to {111} planes is not less than 1.0, and TS×El, which represents a product of maximum tensile strength (TS) multiplied by rupture elongation (El) of the steel sheet, is at least 13,860 MPA %.

摘要翻译： 提供一种具有优异的能够弯曲的定形性的薄铁素体钢板，其特征在于，包括以下的至少0.027〜小于0.05质量％的C，0.01〜1.0质量％的Si，0.01〜2.0质量％的Mn， 大于0.15质量％的P，不大于0.03质量％的S，0.01至0.1质量％的Al，不大于0.01质量％的N，不大于0.007质量％的O，余量为Fe和不可避免的杂质 其中，与钢板表面平行的{100}面与{111}面的比例不小于1.0，表示最大拉伸强度（TS）乘以断裂伸长率（E1）的乘积的TSxE1 ）至少为13,860 MPA％。

公开(公告)号：US4087289A

公开(公告)日：1978-05-02

申请号：US781000

申请日：1977-03-24

申请人： Hisashi Gondo ,  Mitsunobu Abe ,  Matsuo Usuda ,  Kunihiko Komiya ,  Tsuyoshi Kawano

发明人： Hisashi Gondo ,  Mitsunobu Abe ,  Matsuo Usuda ,  Kunihiko Komiya ,  Tsuyoshi Kawano

IPC分类号： C22C38/00 ,  C21D6/00 ,  C21D8/00 ,  C21D8/02 ,  C21D9/46 ,  C21D7/02

CPC分类号： C21D8/0273 ,  C21D8/0226 ,  C21D8/0231 ,  C21D8/0236 ,  C21D8/0263

摘要： Anti-vibration steel materials containing not more than 0.1% of carbon and not more than 0.5% of manganese and having an .alpha. value of not lower than 55, said value being a product of the yield point or stress at 0.2% strain and the grain size number, and a method for producing the same which comprises hot rolling a steel slab, billet or bloom containing not more than 0.1% of carbon, not more than 0.5% of manganese, giving not more than 10% of strain to the hot rolled steel, annealing the hot rolled steel thus strain given at a temperature not lower than its recrystallization temperature but not higher than its A.sub.3 transformation point for at least one minute and controlling the .alpha. value as defined herein to a value not more than 55.

摘要翻译： 含有不超过0.1％的碳和不超过0.5％的锰并且具有不低于55的α值的抗振钢材，所述值是在0.2％应变下的屈服点或应力的产物和晶粒 尺寸数及其制造方法，其特征在于，将钢坯，含有不超过0.1％的碳，不超过0.5％的锰的钢坯或坯料进行热轧，给予热轧不超过10％的应变 钢，因此在不低于其再结晶温度但不高于其A3相变点的温度下施加至少1分钟的温度下给出的应变，并将本文定义的α值控制为不大于55的值。

公开(公告)号：US4046597A

公开(公告)日：1977-09-06

申请号：US749082

申请日：1976-12-09

申请人： Hiroshi Takechi ,  Mitsunobu Abe ,  Matsuo Usuda ,  Kunihiko Komiya

发明人： Hiroshi Takechi ,  Mitsunobu Abe ,  Matsuo Usuda ,  Kunihiko Komiya

IPC分类号： C21D8/00 ,  C21D7/14

CPC分类号： C21D8/00

摘要： A vibration damping steel containing C .ltoreq. 0.10% and Mn .ltoreq. 0.40% as the essential constituents and having a lower yield point or 0.2% proof stress of 7-28kg/mm.sup.2 with the degree of refinement of the steel being not less than 0.18 while still maintaining the specific gravity at 7.859g/cm.sup.3 or less, and a process for producing the same. This steel material is particularly suited for use in items which to produce and transmit vibration and noise.

公开(公告)号：US4294095A

公开(公告)日：1981-10-13

申请号：US97043

申请日：1979-11-23

申请人： Tsuyoshi Kawano ,  Matsuo Usuda ,  Toshio Hirokawa

发明人： Tsuyoshi Kawano ,  Matsuo Usuda ,  Toshio Hirokawa

IPC分类号： B21D5/01 ,  B21D5/00

CPC分类号： B21D5/01

摘要： Rolled steel plate is press-fabricated into cylindrical UO pipe with a large wall thickness, by the steps of crimping, U-ing and O-ing. In the U-ing process, a collapsible U-ing punch, including a center block carrying paired side punches on both sides and a bottom punch at the bottom, is used. The U-ing punch insures that the O-shaped workpiece has the desired butt gap by decreasing the ratio of its height to its width when the gap proves to be smaller than the desired butt edge gap, and vice versa when the gap proves to be larger than the desired butt edge gap.

摘要翻译： 轧制钢板通过压接，接合和操作的步骤压制成具有大壁厚度的圆柱形UO管。 在加工过程中，使用可折叠的U形冲头，其包括在两侧承载成对的侧冲头的中心块和底部的底部冲头。 U形冲头确保O形工件具有所需的对接间隙，当间隙证明小于所需的对接边缘间隙时，通过减小其高度与其宽度的比率，反之亦然，当间隙证明为 大于所需的对接边缘间隙。