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    • 2. 发明申请
    • STEEL PLATE FOR PRODUCING PIPE HIGHLY RESISTANT TO FUEL VAPOR CORROSION, PIPE USING SAME AND METHOD FOR PRODUCING PIPE
    • 用于制造耐燃油蒸气腐蚀管的钢板,使用该管的管和用于生产管的方法
    • US20130199657A1
    • 2013-08-08
    • US13814502
    • 2011-08-04
    • Tatsuo TomomoriKoh Yoshioka
    • Tatsuo TomomoriKoh Yoshioka
    • B21D51/16F16L9/02B21D5/10
    • B21D51/16B21C37/09B21D5/10B21D7/02B21D35/005C25D3/565C25D5/48C25D7/04F02M37/00F16L9/02Y10T428/12799
    • Provided are a pipe which exhibits corrosion resistance against vapor of fuel such as gasoline, diesel oil, bioethanol or a biodiesel fuel, a method for manufacturing the pipe, and a steel sheet for manufacturing the pipe. A method for manufacturing a pipe having a bent portion which has excellent corrosion resistance against fuel vapor includes the steps of; preparing a steel sheet for manufacturing a pipe which is characterized by having a zinc-nickel (Zn—Ni) alloy layer where a nickel content is 4 to 16 at % on at least one surface of the steel sheet; forming the steel sheet for manufacturing a pipe into a tubular shape such that the Zn—Ni alloy layer forms an inner surface of the pipe, and applying bending to the pipe such that the elongation of the bent convex portion generated at the time of bending the pipe falls within 20%. A steel sheet for manufacturing a pipe having excellent corrosion resistance against fuel vapor has a Zn—Ni alloy layer on at least an uppermost surface of a surface thereof which constitutes an inner surface of the pipe, and a nickel content in the Zn—Ni alloy layer is 4 to 16 at %.
    • 具有对汽油,柴油,生物乙醇,生物柴油等燃料的蒸气的耐腐蚀性的管,管的制造方法,以及管的制造用钢板。 具有对燃料蒸气具有优异的耐腐蚀性的弯曲部的管的制造方法包括以下步骤: 制备用于制造管材的钢板,其特征在于,在所述钢板的至少一个表面上具有镍含量为4〜16原子%的锌 - 镍(Zn-Ni)合金层; 将用于制造管的钢板形成管状,使得Zn-Ni合金层形成管的内表面,并向管施加弯曲,使得弯曲时产生的弯曲凸部的伸长率 管子落在20%以内。 用于制造对燃料蒸汽具有优异耐腐蚀性的管的钢板在其至少构成其内表面的表面的至少最表面上具有Zn-Ni合金层,并且Zn-Ni合金中的镍含量 层为4至16原子%。
    • 3. 发明申请
    • Steel Sheet Used to Manufacture Pipe and Having Corrosion-Resistant Properties Against Fuel Vapors, and Pipe and Fuel Supply Pipe That Use Same
    • 用于制造管道并具有耐燃料蒸汽的耐腐蚀性能的钢板和使用相同的管道和燃料供应管
    • US20120234426A1
    • 2012-09-20
    • US13496876
    • 2010-09-16
    • Tatsuo TomomoriKoh YoshiokaHideyuki Minagi
    • Tatsuo TomomoriKoh YoshiokaHideyuki Minagi
    • F16L9/14B32B15/18B32B15/01
    • F16L9/02C25D3/12C25D5/12C25D5/36C25D5/50C25D7/04Y10T428/12972
    • Provided is a steel sheet for manufacturing a pipe having corrosion resistance against fuel vapor of fuel such as gasoline, light oil, bioethanol or bio-diesel fuel, and a pipe and a fuel supply pipe. In the steel sheet for manufacturing a pipe, a Fe—Ni diffusion layer and a softened Ni layer which is provided on the Fe—Ni diffusion layer are formed on a surface of a steel sheet, and a thickness of the softened Ni layer is set to a value which falls within a range of 0.9 to 8.1 μm thus having corrosion resistance against fuel vapor. In the pipe and the fuel supply pipe, a Fe—Ni diffusion layer and a softened Ni layer which is provided on the Fe—Ni diffusion layer are formed on an inner surface of a pipe formed of a steel sheet, and a thickness of the softened Ni layer is set to a value which falls within a range of 0.9 to 8.1 μm. In a fuel supply pipe 20 for supplying fuel to a fuel tank 23, the fuel supply pipe includes: a large-diameter pipe portion 21 through which the fuel passes; and a small-diameter pipe portion 22 which makes an upper portion of the large-diameter pipe portion and a lower portion of the large-diameter pipe portion communicate with each other for ventilation, and a Fe—Ni diffusion layer and a softened Ni layer which is provided on the Fe—Ni diffusion layer are formed on an inner surface of at least the small-diameter pipe portion, and a thickness of the softened Ni layer is set to a value which falls within a range of 0.9 to 8.1 μm.
    • 本发明提供一种用于制造具有对汽油,轻油,生物乙醇或生物柴油燃料等燃料的燃料蒸气具有耐腐蚀性的管的钢板,以及管和燃料供给管。 在用于制造管的钢板中,在钢板的表面上形成Fe-Ni扩散层和设置在Fe-Ni扩散层上的软化Ni层,并且设定软化Ni层的厚度 达到0.9〜8.1μm的范围内的值,因此具有对燃料蒸气的耐腐蚀性。 在管和燃料供给管中,在由钢板形成的管的内表面上形成Fe-Ni扩散层和设置在Fe-Ni扩散层上的软化Ni层,厚度为 软化Ni层设定在0.9〜8.1μm的范围内的值。 在用于向燃料箱23供给燃料的燃料供给管20中,燃料供给管包括:燃料通过的大径管部21; 以及小直径管部22,其使大直径管部的上部和大直径管部的下部彼此连通以进行通风,并且将Fe-Ni扩散层和软化的Ni层 形成在Fe-Ni扩散层的至少小径管部的内表面上,软化Ni层的厚度设定在0.9〜8.1μm的范围内。