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    • 1. 发明申请
    • Source blank for stainless steel three-ply clad sheet, production methods of clad steel plate and sheet for solid polymer type fuel cell separator, and solid polymer type fuel cell separator
    • 不锈钢三层包覆板坯,固体聚合物型燃料电池隔板复合钢板和板材的生产方法,固体聚合物型燃料电池隔板
    • US20080220308A1
    • 2008-09-11
    • US12076197
    • 2008-03-14
    • Motomichi KanbeKunihiko UshioTakeo YazawaHideaki YamamotoYoshio TarutaniAkira Seki
    • Motomichi KanbeKunihiko UshioTakeo YazawaHideaki YamamotoYoshio TarutaniAkira Seki
    • B32B15/18H01M8/10B23K31/02
    • B21B3/02B23K15/0053B23K20/04B23K2101/18B23K2101/34B23K2103/05B23K2103/18C22C38/44C22C38/54H01M8/021H01M8/0223H01M2008/1095Y02P70/56Y10S228/901Y10T428/12653Y10T428/12965
    • Provided is a first method for producing a source blank for a clad steel sheet composed of a stainless steel containing 0 to 0.3% B as a core component and a stainless steel containing 0.3 to 2.5% B as face components, the face components each being combined with each of major faces of the core component through the following steps and the like: Step 1: disposing, on side end faces of each face component, protectors with a length greater than a length of the side end faces, disposing tabs each in abutting relation with an extension of the protector's face to abut on the side end face of the face component, and performing bonding between the tabs and the protectors and between the face component and the protectors; Step 2: each composite, which is obtained by removing the tabs and extended portions of the protectors bonded with the tabs from the workpiece after Step 1, is piled on either major face of the core component to thereby obtain a combined block; and Step 3: performing bonding at boundary regions on peripheral four side end faces of the combined block. Further, there is provided a second method for producing a stainless steel three-ply clad sheet for a fuel cell separator, comprising heating the source blank produced by the first method and then performing rough rolling, hot rolling and cold rolling thereto, whereby the clad steel sheet for the fuel cell separator or a solid polymer type fuel cell separator thereby is obtained. According to this, a source blank for a stainless steel three-ply clad sheet and a separator steel sheet, including B-containing steel as a face layer, which are most suitably used as a solid polymer type fuel cell separator can be provided.
    • 本发明提供一种由含有0〜0.3%B作为核心成分的不锈钢和含有0.3〜2.5%B作为面部成分的不锈钢构成的复合钢板的原料坯的第一种方法,所述面部成分各自组合 通过以下步骤等使芯部件的每个主面:步骤1:在每个面部部件的侧端面上设置长度大于侧端面长度的保护件,将突出部分设置成邻接 与保护器的表面的延伸部的关系抵接在面部部件的侧端面上,并且进行接头和保护件之间以及面部部件和保护件之间的接合; 步骤2:通过将在步骤1之后从工件接合的保护器的突片和延伸部分移除而获得的每个复合物堆叠在芯部件的主面上,从而获得组合块; 和步骤3:在组合块的周边四个侧端面上的边界区域执行结合。 此外,提供了一种用于制造用于燃料电池隔板的不锈钢三层包覆板的第二种方法,包括加热通过第一种方法制造的源坯料,然后进行粗轧,热轧和冷轧,由此包层 得到燃料电池用隔板用钢板或固体聚合物型燃料电池隔板。 据此,可以提供最适合用作固体聚合物型燃料电池隔板的不锈钢三层包覆板和含有B层钢作为面层的隔板钢板的坯料。
    • 5. 发明授权
    • Hot working method for producing a superplastic ferrous duplex-phase
alloy
    • 用于生产超塑性双铁相合金的热加工方法
    • US4812177A
    • 1989-03-14
    • US147530
    • 1988-01-25
    • Yasuhiro MaeharaYoshio Tarutani
    • Yasuhiro MaeharaYoshio Tarutani
    • C21D8/00C22C38/02C22C38/04C22C38/40
    • C22C38/02C21D8/005C22C38/04C22C38/40Y10S420/902Y10S72/709
    • A superplastic hot working method for a duplex-phase, nitrogen-containing ferrous alloy and stainless steel, and a superplastic duplex-phase ferrous alloy are disclosed. The ferrous alloy comprises: at least one of Si and Mn in an amount of not less than 0.5 % and not less than 1.7%, respectively; and N: at least 0.01% in solid solution, wherein Si eq and Mn eq which are defined as: Si eq=Si+(2/3) (Cr+Mo), and Mn eq=Mn+2Ni+60C+50N, satisfy the formula:(5/6) (Si eq)-15/2.ltoreq.Mn eq.ltoreq.(11/5)(Si eq)-77/5,and its superplastic hot working is carried out by deforming the alloy heated to 700.degree.-1200.degree. C. at a strain rate of 1.times.10.sup.-6 S.sup.-1 to 1.times.10.sup.0 S.sup.-1. In another aspect, superplastic hot working of a duplex-phase stainless steel comprising Cr: 10.0-35.0%, Ni: 2.0-18.0%; Mo: 0-6.0%, and N: 0.005-0.3% and having the values of Si eq and Mn eq as above is carried out by deforming the steel at a strain rate of from 1.times.10.sup.-6 S.sup.-1 to 1.times.10.sup.1 S.sup.-1 after heating to a temperature of at least 700.degree. C. and at most 100.degree. C. below the temperature at which the steel transforms into a single ferrite phase, preferably in a non-oxidizing nitrogen atmosphere.
    • 公开了一种用于双相,含氮铁合金和不锈钢以及超塑性双相铁合金的超塑性热加工方法。 铁合金包括:分别为不小于0.5%且不小于1.7%的Si和Mn中的至少一种; 和N:至少0.01%的固溶体,其中定义为Si eq = Si +(2/3)(Cr + Mo)和Mn eq = Mn + 2Ni + 60C + 50N的Si eq和Mn eq满足 式(5/6)(Si eq)-15/2
    • 7. 发明授权
    • Superplastic ferrous duplex-phase alloy and a hot working method therefor
    • 超强铁素双相合金及其热加工方法
    • US4721600A
    • 1988-01-26
    • US844661
    • 1986-03-27
    • Yasuhiro MaeharaYoshio Tarutani
    • Yasuhiro MaeharaYoshio Tarutani
    • C21D8/00C22C38/02C22C38/04C22C38/40
    • C22C38/02C21D8/005C22C38/04C22C38/40Y10S420/902Y10S72/709
    • A superplastic hot working method for a duplex-phase, nitrogen-containing ferrous alloy and stainless steel, and a superplastic duplex-phase ferrous alloy are disclosed. The ferrous alloy comprises: at least one of Si and Mn in an amount of not less than 0.5% and not less than 1.7%, respectively; and N: at least 0.01% in solid solution, wherein Si eq and Mn eq which are defined as:Si eq=Si+(2/3)(Cr+Mo), and Mn eq=Mn+2 Ni+60 C+50 N,satisfy the formula:(5/6)(Si eq)-15/2.ltoreq.Mn eq.ltoreq.(11/5)(Si eq)-77/5,and its superplastic hot working is carried out by deforming the alloy heated to 700.degree.-1200.degree. C. at a strain rate of 1.times.10.sup.-6 S.sup.-1 to 1.times.10.sup.0 S.sup.-1. In another aspect, superplastic hot working of a duplex-phase stainless steel comprising Cr: 10.0-35.0%, Ni: 2.0-18.0%, Mo: 0-6.0%, and N: 0.005-0.3% and having the values of Si eq and Mn eq as above is carried out by deforming the steel at a strain rate of from 1.times.10.sup.-6 S.sup.-1 to 1.times.10.sup.1 S.sup.-1 after heating to a temperature of at least 700.degree. C. and at most 100.degree. C. below the temperature at which the steel transforms into a single ferrite phase, preferably in a non-oxidizing nitrogen atmosphere.
    • 公开了一种用于双相,含氮铁合金和不锈钢以及超塑性双相铁合金的超塑性热加工方法。 铁合金包括:分别为不小于0.5%且不小于1.7%的Si和Mn中的至少一种; 和N:至少0.01%的固溶体,其中Si eq和Mn eq定义为:Si eq = Si +(2/3)(Cr + Mo),Mn eq = Mn + 2 Ni + 60 C + 50 N,满足公式:(5/6)(Si eq)-15/2