公开(公告)号：US20140212686A1

公开(公告)日：2014-07-31

申请号：US14130530

申请日：2012-06-29

申请人： Norio Imai ,  Masayuki Wakita ,  Takuya Nishio ,  Jun Haga ,  Kengo Hata ,  Yasuaki Tanaka ,  Mitsuru Yoshida ,  Hiroshi Takebayashi ,  Suguhiro Fukushima ,  Toshiro Tomida

发明人： Norio Imai ,  Masayuki Wakita ,  Takuya Nishio ,  Jun Haga ,  Kengo Hata ,  Yasuaki Tanaka ,  Mitsuru Yoshida ,  Hiroshi Takebayashi ,  Suguhiro Fukushima ,  Toshiro Tomida

IPC分类号： C23C2/02 ,  C21D8/02

摘要： A hot-dip galvanized cold-rolled steel sheet has a tensile strength of 750 MPa or higher, a composition consisting, in mass percent, of C: more than 0.10% and less than 0.25%, Si: more than 0.50% and less than 2.0%, Mn: more than 1.50% and 3.0% or less, and optionally containing one or more types of Ti, Nb, V, Cr, Mo, B, Ca, Mg, REM, and Bi, P: less than 0.050%, S: 0.010% or less, sol. Al: 0.50% or less, and N: 0.010% or less, and a main phase as a low-temperature transformation product and a second phase as retained austenite. The retained austenite volume fraction is more than 4.0% and less than 25.0% of the whole structure, and has an average grain size of less than 0.80 □m. A number density of retained austenite grains having a grain size of 1.2 □m or more is 3.0□10−2/□m2 or less.

摘要翻译： 热浸镀锌冷轧钢板的拉伸强度为750MPa以上，以质量％计，C：0.10以上且小于0.25％的Si：超过0.50％以下 2.0％，Mn：大于1.50％和3.0％以下，并且任选地含有一种或多种Ti，Nb，V，Cr，Mo，B，Ca，Mg，REM和Bi，P：小于0.050％ ，S：0.010％以下，溶胶。 Al：0.50％以下，N：0.010％以下，作为低温相变产物的主相和作为残留奥氏体的第二相。 残留奥氏体体积分数大于整个结构的4.0％以上且小于25.0％，平均粒径小于0.80μm。 晶粒尺寸为1.2μm以上的残留奥氏体晶粒的数密度为3.0×10 -2 /□m 2以下。

公开(公告)号：US20110162760A1

公开(公告)日：2011-07-07

申请号：US13046869

申请日：2011-03-14

申请人： Toshirou TOMIDA ,  Norio Imai ,  Mitsuru Yoshida ,  Kaori Kawano ,  Masayuki Wakita ,  Tamotsu Toki ,  Masanori Yasuyama ,  Hitomi Nishibata

发明人： Toshirou TOMIDA ,  Norio Imai ,  Mitsuru Yoshida ,  Kaori Kawano ,  Masayuki Wakita ,  Tamotsu Toki ,  Masanori Yasuyama ,  Hitomi Nishibata

IPC分类号： C21D8/02 ,  C21D11/00 ,  C21D6/00

CPC分类号： C23C2/40 ,  B32B15/012 ,  B32B15/013 ,  C21D8/0205 ,  C21D8/0226 ,  C21D8/0263 ,  C21D8/0405 ,  C21D8/0463 ,  C21D9/46 ,  C21D9/50 ,  C21D2201/03 ,  C21D2211/002 ,  C21D2211/005 ,  C21D2211/009 ,  C22C18/04 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C23C2/06 ,  C23C2/28

摘要： A steel sheet excellent in mechanical strength, workability and thermal stability and suited for use as a raw material in such fields of manufacturing automobiles, household electric appliances and machine structures and of constructing buildings, and a manufacturing method thereof are provided.The steel sheet is a hot-rolled steel sheet of carbon steel or low-alloy steel, the main phase of which is ferrite, and is characterized in that the average ferrite crystal grain diameter D (μm) at the depth of ¼ of the sheet thickness from the steel sheet surface satisfies the relations respectively defined by the formulas (1) and (2) given below and the increase rate X (μm/min) in average ferrite crystal grain diameter at 700° C. at the depth of ¼ of the sheet thickness from the steel sheet surface and said average crystal grain diameter D (μm) satisfy the relation defined by the formula (3) given below: 1.2≦D≦7  formula (1) D≦2.7+5000/(5+350·C+40·Mn)2  formula (2) D·X≦0.1  formula (3) wherein C and Mn represent the contents (in % by mass) of the respective elements in the steel.

摘要翻译： 提供了机械强度，可加工性和热稳定性优异且适用于制造汽车，家用电器和机器结构以及建筑物的领域中的原料的钢板及其制造方法。 该钢板是碳素钢或低合金钢的热轧钢板，其主相是铁素体，其特征在于，在片材的1/4深度处的平均铁素体晶粒直径D（μm） 从钢板表面的厚度满足下面给出的式（1）和（2）所定义的关系，并且在700℃的平均铁素体晶粒直径的增加速率X（μm/ min）在深度为1/4 钢板表面的平均厚度和所述平均晶粒直径D（μm）满足以下公式（3）所定义的关系：1.2＆nlE; D＆nlE; 7式（1）D＆nlE; 2.7 + 5000 /（5+ 350·C + 40·Mn）2式（2）D·X＆nlE; 0.1式（3）其中C和Mn表示钢中各元素的含量（质量％）。

公开(公告)号：US07731808B2

公开(公告)日：2010-06-08

申请号：US12068045

申请日：2008-02-01

申请人： Toshirou Tomida ,  Norio Imai ,  Mitsuru Yoshida ,  Kaori Kawano ,  Masayuki Wakita ,  Tamotsu Toki ,  Masanori Yasuyama ,  Hitomi Nishibata

发明人： Toshirou Tomida ,  Norio Imai ,  Mitsuru Yoshida ,  Kaori Kawano ,  Masayuki Wakita ,  Tamotsu Toki ,  Masanori Yasuyama ,  Hitomi Nishibata

IPC分类号： C22C38/00 ,  C21D8/02 ,  C21D8/04

CPC分类号： C23C2/40 ,  B32B15/012 ,  B32B15/013 ,  C21D8/0205 ,  C21D8/0226 ,  C21D8/0263 ,  C21D8/0405 ,  C21D8/0463 ,  C21D9/46 ,  C21D9/50 ,  C21D2201/03 ,  C21D2211/002 ,  C21D2211/005 ,  C21D2211/009 ,  C22C18/04 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C23C2/06 ,  C23C2/28

摘要： A steel sheet excellent in mechanical strength, workability and thermal stability and suited for use as a raw material in such fields of manufacturing automobiles, household electric appliances and machine structures and of constructing buildings, and a manufacturing method thereof are provided. The steel sheet is a hot-rolled steel sheet of carbon steel or low-alloy steel, the main phase of which is ferrite, and is characterized in that the average ferrite crystal grain diameter D (μm) at the depth of ¼ of the sheet thickness from the steel sheet surface satisfies the relations respectively defined by the formulas (1) and (2) given below and the increase rate X (μm/min) in average ferrite crystal grain diameter at 700° C. at the depth of ¼ of the sheet thickness from the steel sheet surface and said average crystal diameter D (μm) satisfy the relation defined by the formula (3) given below: 1.2≦D≦7  formula (1) D≦2.7+5000/(5+350·C+40·Mn)2  formula (2) D·X≦0.1  formula (3) wherein C and Mn represent the contents (in % by mass) of the respective elements in the steel.

摘要翻译： 提供了机械强度，可加工性和热稳定性优异且适用于制造汽车，家用电器和机器结构以及建筑物的领域中的原料的钢板及其制造方法。 该钢板是碳素钢或低合金钢的热轧钢板，其主相是铁素体，其特征在于，在片材的1/4深度处的平均铁素体晶粒直径D（μm） 从钢板表面的厚度满足下面给出的式（1）和（2）所定义的关系，并且在700℃的平均铁素体晶粒直径的增加速率X（μm/ min）在深度为1/4 钢板表面的板厚和所述平均晶体直径D（μm）满足以下公式（3）定义的关系：1.2＆nlE; D＆nlE; 7式（1）D＆nlE; 2.7 + 5000 /（5 + 350 ·C + 40·Mn）2式（2）D·X＆nlE; 0.1式（3）其中C和Mn表示钢中各元素的含量（质量％）。

公开(公告)号：US06835147B2

公开(公告)日：2004-12-28

申请号：US10262674

申请日：2002-10-02

申请人： Akihito Iwata ,  Norio Imai ,  Masashi Hattori ,  Ryoji Habuchi

发明人： Akihito Iwata ,  Norio Imai ,  Masashi Hattori ,  Ryoji Habuchi

IPC分类号： F16H6114

CPC分类号： F16H61/143 ,  F16H61/12 ,  F16H61/662 ,  F16H2061/0425 ,  F16H2061/122 ,  F16H2061/1268 ,  F16H2061/6608

摘要： A hydraulic controller of an automatic transmission which releases the lockup clutch when it fails. An output port of a solenoid valve is connected to a port of a lockup control valve and a port of a garage shift valve. An output port of a solenoid valve is connected to a port of the lockup control valve and a port of the garage shift valve. At least one of the solenoid valves is freely duty-controlled. A pattern, which enables regular control of the automatic transmission in normal operation and does not allow the lockup clutch to change from its released state to its engaged state, is selected for use from among plural combinations of signal pressures of the solenoid valves.

摘要翻译： 自动变速器的液压控制器，当失效时释放锁止离合器。 电磁阀的输出端口连接到锁止控制阀的端口和车库换档阀的端口。 电磁阀的输出端口连接到锁止控制阀的端口和车库换档阀的端口。 至少有一个电磁阀可以自由地进行控制。 在电磁阀的信号压力的多个组合中选择使用能够在正常操作中定期控制自动变速器并且不允许锁止离合器从其释放状态改变到其接合状态的模式。

公开(公告)号：US5924450A

公开(公告)日：1999-07-20

申请号：US943202

申请日：1997-10-03

申请人： Shiro Sakakibara ,  Norio Imai

发明人： Shiro Sakakibara ,  Norio Imai

IPC分类号： F16H9/00 ,  F15B13/01 ,  F16H61/00 ,  F16H61/662 ,  F15B13/042

CPC分类号： F15B13/01 ,  F16H61/66259 ,  F16H2061/6608 ,  Y10T137/8663

摘要： A control valve is shown for a continuously variable transmission, with a spool of the control valve being maintained at a fixed transmission ratio position between an up-shift position and a downshift position when a signal pressure supplied to the control valve falls within a certain range. The signal pressure is provided to the control valve through a pressure line that is divided, with one branch of the signal pressure line being connected to a first input port of the control valve and the other branch being connected to a second input port through an orifice. Application of a signal pressure within a certain range results in the drain port being selectively connected with the second input port.

摘要翻译： 示出了用于无级变速器的控制阀，当提供给控制阀的信号压力落在一定范围内时，控制阀的阀芯在升档位置和降档位置之间保持在固定的变速比位置 。 信号压力通过分压的压力线提供给控制阀，信号压力线的一个分支连接到控制阀的第一输入端口，另一个分支通过孔口连接到第二输入端口 。 信号压力在一定范围内的应用导致排水口选择性地与第二输入端口连接。