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    • 24. 发明授权
    • Stainless steel product containing B and method for production thereof
    • 含有B的不锈钢制品及其生产方法
    • US07170073B2
    • 2007-01-30
    • US11076943
    • 2005-03-11
    • Kazuhiro IshidaKazuhiro OgawaTakeo YazawaHideaki YamamotoHideo Morisaki
    • Kazuhiro IshidaKazuhiro OgawaTakeo YazawaHideaki YamamotoHideo Morisaki
    • C22C38/32B21B3/02B23K9/04
    • B21B3/02B21B1/024B21B1/026B21B2001/022B21B2001/028B23K15/00B23K35/308B23K35/3086B23K2103/05C22C38/001C22C38/02C22C38/04C22C38/06C22C38/44C22C38/54H01M8/021Y02P70/56
    • A stainless steel slab containing B, wherein a protecting material is joined onto at least two faces across the bloom from each other in a stainless steel bloom containing B of 0.3–2.5 mass %, being integrated into one-piece by forming a weld metal comprising a stainless steel with chemical composition that satisfies the relationship expressed by following formulas (1)–(4), and a method to produce a steel product by rolling said slab. Further, it is preferable to interpose an insert material between above stainless steel bloom and above protecting material in bonding process. 15≦Cr eq≦30,  (1) 4≦Cr eq−Ni eq≦17,  (2) Cr eq=Cr+1.5 Si+Mo−5 B,  (3) Ni eq=Ni+30 (C+N)+0.5 Mn  (4) Herein, each symbol of a chemical element designates the content (mass %) of relevant chemical element contained in steel. Accordingly, it makes it possible to subject a stainless steel slab containing B to hot working without generating edge cracking, so as to be used as a source material of a neutron shielding container and a separator of a fuel cell.
    • 一种含有B的不锈钢板,其中保护材料通过含有0.3-2.5质量%的B的不锈钢开坯彼此连接在至少两个面上,通过形成焊接金属而形成一体,所述焊接金属包括 具有满足下述式(1)〜(4)所示关系的化学成分的不锈钢,以及轧制所述板坯来制造钢材的方法。 此外,优选在接合工序中将插入材料插入上述不锈钢开花和上述保护材料之间。 <?in-line-formula description =“In-line Formulas”end =“lead”?> 15 <= CReq <= 30,(1)<?in-line-formula description =“In-line Formulas”end = “tail”?> <?in-line-formula description =“In-line Formulas”end =“lead”?> 4 <= CReq-Ni eq <= 17,(2)<?in-line-formula description = “直线公式”end =“tail”?> <?in-line-formula description =“In-line Formulas”end =“lead”?> Cr eq = Cr + 1.5 Si + Mo-5 B,(3 )<?in-line-formula description =“In-line Formulas”end =“tail”?> <?in-line-formula description =“In-line Formulas”end =“lead”?Ni eq = Ni + 30(C + N)+0.5 Mn(4)<?在线公式描述=“在线公式”end =“tail”?>这里,化学元素的每个符号表示 钢中含有的相关化学元素。 因此,可以使含有B的不锈钢板坯进行热加工而不会产生边缘裂纹,从而用作中子屏蔽容器的源材料和燃料电池的隔板。