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    • 1. 发明授权
    • High chromium ferritic heat-resistant steel
    • 高铬铁素体耐热钢
    • US5591391A
    • 1997-01-07
    • US529395
    • 1995-09-18
    • Masaaki IgarashiHiroyuki SenbaKaori Miyata
    • Masaaki IgarashiHiroyuki SenbaKaori Miyata
    • C22C38/00C22C38/22C22C38/30C22C38/54C22C38/52
    • C22C38/22C22C38/30
    • The present invention discloses high chromium ferritic heat-resistant steel which has remarkable properties that the base metal and welded joints of the steel both exhibit excellent long term creep strength at elevated temperatures over 600.degree. C. excellent resistance to steam oxidation, and excellent toughness at room temperatures. The chemical composition of main elements of the steel of the invention is as follows:______________________________________ Cr: 8.0 to 13.0%, W: 1.5 to 4.0%, Co: 2.5 to 8.0%, Ta: 0.01 to 0.50%, Nd: 0.001 to 0.24%, ______________________________________ wherein % means % by weight.The steel of the present invention further encompasses steels which contain, in addition to the above essential chemical composition, at least one element selected from the group consisting of Sc, Y, La, and Ce, or at least one element selected from the group consisting of Hf, Ti, and Zr, or at least one element from each of the two groups at the same time. When creep property and toughness are required for welded joints, the amounts of W, Mo, Ta, Nb, and B are selected properly.
    • 本发明公开了高铬铁素体耐热钢,具有显着的性能,即在600℃以上的高温下,基体金属和焊接接头在高温下表现出优异的长期蠕变强度,优异的抗蒸汽氧化性能和优异的韧性 室温。 本发明钢主要成分的化学成分如下:Cr:8.0〜13.0%,W:1.5〜4.0%,Co:2.5〜8.0%,Ta:0.01〜0.50%,Nd:0.001 至0.24%, - 其中%表示重量%。 本发明的钢还包括含有上述基本化学组成的至少一种选自Sc,Y,La和Ce的元素,或至少一种选自以下的元素的钢: 的Hf,Ti和Zr,或来自两组中的至少一个元素。 当焊接接头需要蠕变性能和韧性时,W,Mo,Ta,Nb和B的数量正确选择。
    • 8. 发明授权
    • Multiconductor cable and method of producing the cable
    • 多芯电缆及其制作方法
    • US07098404B2
    • 2006-08-29
    • US11058415
    • 2005-02-16
    • Hisashi HirataShizuyoshi SatouHiroyuki Senba
    • Hisashi HirataShizuyoshi SatouHiroyuki Senba
    • H01B7/00
    • H01B7/0892Y10T29/49174Y10T29/49194Y10T29/5187Y10T29/53261Y10T29/53265
    • A multiconductor cable is reduced in the possibility of break even for use at a place where the cable undergoes twisting, and a method can produce the multiconductor cable easily at a low cost. The multiconductor cable incorporates a plurality of wires that are arranged in a flat array with a specific pitch at both ends of them, that have an intermediate portion at which they are bundled together; and that have lengths different from one another, the lengths varying successively from the minimum length, Ls, to the maximum length, Lm. The multiconductor cable satisfies the formulae “D/E>⅙,” and “(Lm−Ls)>{(D2+E2)1/2−E},” where D is the width of the cable at both ends, E is the distance between the ends of the cable, Lm is the maximum length, and Ls is the minimum length.
    • 即使在电缆经受扭转的地方使用多导体电缆也能够断裂,并且可以以低成本容易地制造多导体电缆。 多导体电缆包括以它们两端具有特定间距的扁平阵列布置的多根线,它们具有中间部分,它们被捆扎在一起; 并且具有彼此长度不同的长度,长度从最小长度Ls连续变化到最大长度Lm。 多导体电缆满足公式“D / E> 1/6”和“(Lm-Ls)> {(D 2> 2 + E 2) / 2“E”,“其中D是电缆两端的宽度,E是电缆端部之间的距离,Lm是最大长度,Ls是最小长度。
    • 9. 发明授权
    • Austenitic heat resistant steel excellent in elevated temperature
strength
    • 奥氏体耐热钢具有优异的高温强度
    • US5626817A
    • 1997-05-06
    • US494736
    • 1995-06-26
    • Yoshiatsu SawaragiHiroyuki Senba
    • Yoshiatsu SawaragiHiroyuki Senba
    • C22C38/00C22C38/42C22C38/48C22C38/54
    • C22C38/48C22C38/42
    • A heat resistant austenitic stainless steel having high strength at elevated temperatures. The steel consists of 0.05 to 0.15% carbon, not more than 0.5% silicon, 0.05 to 0.50% manganese, 17 to 25% chromium, 7 to 20% nickel, 2.0 to 4.5% copper, 0.10 to 0.80% niobium, 0.001 to 0.010% boron, 0.05 to 0.25% nitrogen, 0.003 to 0.030% sol.aluminum, 0 to 0.015% magnesium and the balance being iron and incidental impurities. The steel may contain 0.3 to 2.0% molybdenum and/or 0.5-4.0% tungsten. The steel exhibits high creep rupture strength at elevated temperatures for long periods of time, and can be produced at low cost. The steel is suitable for use in the structural members for boilers, chemical plants and other installations operated in a high temperature environment.
    • 在高温下具有高强度的耐热奥氏体不锈钢。 该钢由0.05〜0.15%的碳,不超过0.5%的硅,0.05〜0.50%的锰,17〜25%的铬,7〜20%的镍,2.0〜4.5%的铜,0.10〜0.80%的铌,0.001〜0.010 %硼,0.05-0.25%氮,0.003-0.030%溶胶铝,0-0.015%镁,余量是铁和杂质。 钢可含有0.3〜2.0%的钼和/或0.5-4.0%的钨。 钢在长时间高温下表现出较高的蠕变断裂强度,可以低成本生产。 该钢适用于在高温环境下运行的锅炉,化工厂和其他设备的结构件。