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公开(公告)号：US09260773B2
公开(公告)日：2016-02-16
申请号：US13496750
申请日：2010-09-22
申请人： Sang-Hak Lee , Yoshiki Ono , Kazuya Ikai , Hiroaki Matsumoto , Akihiko Chiba
发明人： Sang-Hak Lee , Yoshiki Ono , Kazuya Ikai , Hiroaki Matsumoto , Akihiko Chiba
摘要： A titanium alloy has high strength and superior workability and is preferably used for various structural materials for automobiles, etc. The titanium alloy is obtained by the following production method. An alloy having a structure of α′ martensite phase is hot worked at conditions at which dynamic recrystallization occurs. The working is performed at a heating rate of 50 to 800° C./second at a strain rate of 0.01 to 10/second when the temperature is 700 to 800° C. or at a strain rate of 0.1 to 10/second when the temperature is more than 800° C. and less than 1000° C. so as to provide a strain of not less than 0.5. Thus, equiaxed crystals with an average grain size of less than 1000 nm are obtained.
摘要翻译： 钛合金的强度高，加工性优异，优选用于汽车等的各种结构材料。钛合金通过以下的制造方法得到。 具有α'马氏体相结构的合金在发生动态再结晶的条件下热加工。 当温度为700至800℃时，以0.1至10 /秒的应变速率，以0.1至10 /秒的应变速率，以50至800℃/秒的加热速率进行加工，应变速率为0.01至10 /秒 温度超过800℃且小于1000℃，以提供不小于0.5的应变。 因此，得到平均粒径小于1000nm的等轴晶体。
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公开(公告)号：US20120168042A1
公开(公告)日：2012-07-05
申请号：US13496750
申请日：2010-09-22
申请人： Sang-Hak Lee , Yoshiki Ono , Kazuya Ikai , Hiroaki Matsumoto , Akihiko Chiba
发明人： Sang-Hak Lee , Yoshiki Ono , Kazuya Ikai , Hiroaki Matsumoto , Akihiko Chiba
摘要： A titanium alloy has high strength and superior workability and is preferably used for various structural materials for automobiles, etc. The titanium alloy is obtained by the following production method. An alloy having a structure of α′ martensite phase is hot worked at conditions at which dynamic recrystallization occurs. The working is performed at a heating rate of 50 to 800° C./second at a strain rate of 0.01 to 10/second when the temperature is 700 to 800° C. or at a strain rate of 0.1 to 10/second when the temperature is more than 800° C. and less than 1000° C. so as to provide a strain of not less than 0.5. Thus, equiaxed crystals with an average grain size of less than 1000 nm are obtained.
摘要翻译： 钛合金的强度高，加工性优异，优选用于汽车等的各种结构材料。钛合金通过以下的制造方法得到。 具有α'马氏体相结构的合金在发生动态再结晶的条件下热加工。 当温度为700至800℃时，以0.1至10 /秒的应变速率，以0.1至10 /秒的应变速率，以50至800℃/秒的加热速率进行加工，应变速率为0.01至10 /秒 温度超过800℃且小于1000℃，以提供不小于0.5的应变。 因此，得到平均粒径小于1000nm的等轴晶体。
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公开(公告)号：US10359090B2
公开(公告)日：2019-07-23
申请号：US14238293
申请日：2012-07-26
申请人： Kazuya Ikai , Tohru Shiraishi , Yuichiro Ono , Yoshiki Ono
发明人： Kazuya Ikai , Tohru Shiraishi , Yuichiro Ono , Yoshiki Ono
IPC分类号： C21D9/02 , C22C38/02 , C22C38/04 , F16F1/02 , B21F35/00 , C21D7/06 , C21D8/06 , C22C38/18 , C22C38/24 , C22C38/34 , C22C38/46 , F16F1/06 , B24C1/10
摘要： A compression coil spring having high durability can be provided by using an inexpensive wire material. The present invention provides a compression coil spring formed by using a steel wire material, the steel wire material made of C: 0.45 to 0.85 mass %, Si: 0.15 to 2.5 mass %, Mn: 0.3 to 1.0 mass %, Fe and inevitable impurities as a remainder, and a circle-equivalent diameter of 1.5 to 9.0 mm, wherein hardness of a freely selected cross-section of the wire material is 570 to 700 HV, and at an inner diameter side of the coil spring, unloaded compressive residual stress at a depth of 0.2 mm from a surface in an approximate maximal main stress direction in a case in which compressive load is loaded on the spring is 200 MPa or more, and unloaded compressive residual stress at a depth of 0.4 mm from surface is 100 MPa or more.
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公开(公告)号：US20140306389A1
公开(公告)日：2014-10-16
申请号：US14238293
申请日：2012-07-26
申请人： Kazuya Ikai , Tohru Shiraishi , Yuichiro Ono , Yoshiki Ono
发明人： Kazuya Ikai , Tohru Shiraishi , Yuichiro Ono , Yoshiki Ono
CPC分类号： F16F1/021 , B21F35/00 , B24C1/10 , C21D7/06 , C21D8/065 , C21D9/02 , C21D2211/008 , C22C38/02 , C22C38/04 , C22C38/18 , C22C38/24 , C22C38/34 , C22C38/46 , F16F1/06
摘要： A compression coil spring having high durability can be provided by using an inexpensive wire material. The present invention provides a compression coil spring formed by using a steel wire material, the steel wire material made of C: 0.45 to 0.85 mass %, Si: 0.15 to 2.5 mass %, Mn: 0.3 to 1.0 mass %, Fe and inevitable impurities as a remainder, and a circle-equivalent diameter of 1.5 to 9.0 mm, wherein hardness of a freely selected cross-section of the wire material is 570 to 700 HV, and at an inner diameter side of the coil spring, unloaded compressive residual stress at a depth of 0.2 mm from a surface in an approximate maximal main stress direction in a case in which compressive load is loaded on the spring is 200 MPa or more, and unloaded compressive residual stress at a depth of 0.4 mm from surface is 100 MPa or more.
摘要翻译： 通过使用廉价的线材可以提供具有高耐久性的压缩螺旋弹簧。 本发明提供一种通过使用钢丝材料形成的压缩螺旋弹簧，由C：0.45〜0.85质量％，Si：0.15〜2.5质量％，Mn：0.3〜1.0质量％的钢丝材料，Fe和不可避免的杂质 作为剩余部分，圆当量直径为1.5〜9.0mm，其中线材自由选择的横截面的硬度为570〜700HV，在螺旋弹簧的内径侧，无负荷的压缩残余应力 在弹簧上施加压缩载荷的情况下，在大致最大主应力方向的表面的深度为0.2mm处，距离表面0.4mm深度的无载荷压缩残余应力为100MPa 或者更多。
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5.发明申请Steel product excellent in corrosion resistance and corrosion fatigue resistance, and surface treatment method therefor 审中-公开耐腐蚀性和耐腐蚀疲劳性优异的钢制品及其表面处理方法公开(公告)号：US20070012382A1
公开(公告)日：2007-01-18
申请号：US11484988
申请日：2006-07-11
申请人： Takeshi Suzuki , Yoshiki Ono , Kazuya Ikai
发明人： Takeshi Suzuki , Yoshiki Ono , Kazuya Ikai
IPC分类号： C23C22/20
CPC分类号： C23C22/20
摘要： The invention provides a steel product excellent in corrosion resistance and corrosion fatigue resistance, comprising a, coating film on the surface of the steel product, wherein a ratio of the number of Al atoms to the total number of Fe, C, Al, P and O atoms and optionally added Si, Mn and Cr atoms is 0.5% or more in an average composition of the coating film, and the number of Al atoms in the average composition of the coating film is higher than the number of Al atoms in an average composition of the steel pro duct before surface treatment.
摘要翻译： 本发明提供一种耐腐蚀性和耐腐蚀疲劳性优异的钢制品，其特征在于，包括：在钢制品表面上的涂膜，其中Al原子数与Fe，C，Al，P和 O原子，并且任选地在涂膜的平均组成中添加Si，Mn和Cr原子的0.5％以上，并且涂膜的平均组成中的Al原子数量比Al原子数的平均值高 表面处理前钢管的组成。
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