Method of making austenitic stainless steel sheet
    1.
    发明授权
    Method of making austenitic stainless steel sheet 失效
    制奥氏体不锈钢板的方法

    公开(公告)号:US6149744A

    公开(公告)日:2000-11-21

    申请号:US177470

    申请日:1998-10-23

    IPC分类号: C23G1/08 C25F1/06 C21D8/02

    CPC分类号: C23G1/086 C25F1/06

    摘要: Method of making a hot-rolled steel sheet having superior surface appearance, free of surface patterns and uneven glossiness from an austenitic stainless steel slab containing about 0.03 percent by weight or more of Cu, about 0.03 percent by weight or more of V, and about 0.01 percent by weight or more of Mo under any of the following conditions: (A) pickling in a nitric-hydrofluoric acid solution containing about 20 to 100 g/l of nitric acid and about 100 to 300 g/l of hydrofluoric acid; (B) controlling nitric-hydrofluoric acid content in response to the iron ion content in the solution; (C) a preliminary pickling step prior to finishing pickling; (D) grinding about 2 .mu.m or more of the surface after preliminary pickling and prior to finishing pickling; (E) causing counterflow with a relative flow rate of 0.5 to 5.0 m/sec on the sheet surface during finishing pickling; (F) adding sulfuric acid or sulfurous acid as a hydrogen ion source to the nitric-hydrofluoric acid solution; and (G) electrolysing during finishing pickling such that the ratio of the cathodic electrolysis time to the anodic electrolysis time is about 3 or more.

    摘要翻译: 制造含有约0.03重量%以上的Cu,约0.03重量%以上的V的奥氏体不锈钢板和具有大约0.03重量%以上的奥氏体不锈钢板的具有优异的表面外观,无表面图案和不均匀光泽度的热轧钢板的制造方法 在以下任一条件下,为0.01重量%以上的Mo:(A)在含有约20〜100g / l硝酸和约100〜300g / l氢氟酸的硝酸 - 氢氟酸溶液中酸洗; (B)响应于溶液中的铁离子含量控制硝酸 - 氢氟酸含量; (C)酸洗前的初步酸洗步骤; (D)在初步酸洗后,酸洗前,研磨约2μm或以上的表面; (E)在整理酸洗期间在片材表面上以0.5-5.0m / sec的相对流速引起逆流; (F)向硝酸 - 氢氟酸溶液中加入硫酸或亚硫酸作氢离子源; 和(G)在整理酸洗期间的电解,使得阴极电解时间与阳极电解时间的比例为约3以上。

    Method for producing chromium-containing hot rolled steel strip
    2.
    发明授权
    Method for producing chromium-containing hot rolled steel strip 失效
    生产含铬热轧钢带的方法

    公开(公告)号:US06217679B1

    公开(公告)日:2001-04-17

    申请号:US09194129

    申请日:1998-11-23

    IPC分类号: C21D802

    摘要: The invention provides hot-rolled steel strips which, after having been acid-pickled, can be directly used. The strips have no Cr-decreasing layer and no shot blasted marks on their surface and have good corrosion resistance. The invention also provides a technique of efficiently producing the hot-rolled steel strips. A steel slab having a Cr content of from 6.0 to 25.0 wt. % is hot-rolled, then coiled at a temperature not higher than 700° C., then optionally quenched in water immediately after the coiling, then annealing in a reducing atmosphere, and thereafter acid-pickled in a solution of nitric acid/hydrochloric acid.

    摘要翻译: 本发明提供了可以直接使用酸洗后的热轧钢带。 带材没有减薄层,表面没有喷丸痕迹,具有良好的耐腐蚀性。 本发明还提供了一种有效地生产热轧钢带的技术。 Cr含量为6.0〜25.0重量%的钢坯 %热轧,然后在不高于700℃的温度下卷绕,然后在卷取后立即在水中骤冷,然后在还原气氛中退火,然后在硝酸/盐酸溶液中酸洗 。

    Hot-rolled stainless steel strip and method for producing the same
    3.
    发明授权
    Hot-rolled stainless steel strip and method for producing the same 失效
    热轧不锈钢带及其制造方法

    公开(公告)号:US5948181A

    公开(公告)日:1999-09-07

    申请号:US939945

    申请日:1997-09-29

    摘要: A hot-rolled stainless steel strip contains at least 10 wt % Cr and 1.0 wt % or less of Si, and has a controlled scale thickness of not more than 2.5 .mu.m in the surface layer. The average thickness of the Si-containing oxide layer formed in the scale/alloy substitute interface is 0.1 .mu.m or less. The hot-rolled stainless steel strip is produced by hot rolling at an elongation rate of at least 150 or hot rough rolling to form a sheet bar, descaling by spraying superhigh pressure water to the surface of the sheet bar at an impact pressure (p) of 25 kgf/cm.sup.2 or more and a flow rate density of 0.002 l/cm.sup.2 or more, and then finish rolling so that the maximum reduction ratio per pass satisfies certain disclosed criteria.

    摘要翻译: 热轧不锈钢带含有至少10重量%的Cr和1.0重量%以下的Si,并且在表面层中具有不大于2.5μm的可控鳞片厚度。 形成在刻度/合金替代界面中的含Si氧化物层的平均厚度为0.1μm以下。 热轧不锈钢带通过以至少150的伸长率或热粗轧进行热轧制成,以形成片材,通过在冲击压力(p)下将超高压水喷射到片材的表面进行除鳞, 25kgf / cm 2以上,流量密度为0.002l / cm 2以上,进行精轧,使每通过最大压下率满足一定的公开标准。

    Process for the production of stainless steel sheets having an excellent
corrosion resistance
    8.
    发明授权
    Process for the production of stainless steel sheets having an excellent corrosion resistance 失效
    具有优异耐腐蚀性的不锈钢板的制造方法

    公开(公告)号:US5626694A

    公开(公告)日:1997-05-06

    申请号:US522383

    申请日:1995-09-22

    IPC分类号: C21D6/00 C21D8/02

    CPC分类号: C21D8/0205 C21D6/002

    摘要: This invention relates to a process for the production of stainless steel sheets and proposes a process for the production of stainless steel sheets having a more excellent corrosion resistance as compared with the conventional one without trimming the steel sheet surface after annealing-pickling by preventing the chapping of steel sheet surface created in the production of present stainless steel sheet, particularly stainless steel sheets having extreme-low amounts of C, S, O.For this purpose, according to the invention, a starting material of stainless steel containing C: not more than 0.01 wt %, S: not more than 0.005 wt % and O: not more than 0.005 wt % is subjected to a hot rolling at a draft below 830.degree. C. of not less than 30%, cooled at a cooling rate of not less than 25.degree. C. sec, coiled below 650.degree. C. and then annealed and pickled.

    摘要翻译: PCT No.PCT / JP95 / 00092 Sec。 371日期1995年9月22日 102(e)1995年9月22日PCT 1995年1月26日PCT PCT。 公开号WO95 / 20683 日期1995年3月8日本发明涉及一种不锈钢板的制造方法,提出了与常规的不锈钢板相比,具有更优异的耐腐蚀性的不锈钢板的制造方法,而不需要对退火后的钢板表面进行修整, 通过防止在本发明的不锈钢板的生产中产生的钢板表面的切割,特别是具有极低量的C,S,O的不锈钢板的酸洗。为此,根据本发明,不锈钢的起始材料 含有C:0.01重量%以下的S:0.005重量%以下,O:0.005重量%以下,在不低于30%的830℃以下的通气条件下进行热轧,冷却至 冷却速度不低于25℃sec,卷绕在650℃以下,然后退火和酸洗。

    Fe—cr—al based alloy foil and method for producing the same
    9.
    发明授权
    Fe—cr—al based alloy foil and method for producing the same 有权
    Fe-Cr系铝合金箔及其制造方法

    公开(公告)号:US06719855B2

    公开(公告)日:2004-04-13

    申请号:US10069748

    申请日:2002-02-27

    IPC分类号: C22C38067

    摘要: The present invention provides an Fe—Cr—Al-based alloy for catalyst carriers and a foil thereof having a thickness of 40 &mgr;m or less, the alloy and the foil improved in the oxidation resistance at high temperatures and having excellent deformation resistance. Specifically, the present invention provides an Fe—Cr—Al-based alloy foil and a manufacturing method thereof, comprising 16.0 to 25.0 mass % of Cr, 1 to 8 mass % of Al, La, Zr, and the balance being Fe and incidental impurities. The contents by mass % of La and Zr meet the following ranges when the foil thickness thereof is t &mgr;m: 1.4/t≦La≦6.0/t  (1) 0.6/t≦Zr≦4.0/t  (2) The Fe—Cr—Al-based alloy foil may further comprises Hf and the balance being Fe and incidental impurities, wherein the contents by mass % of La, Zr, and Hf meet the following ranges: 1.4/t≦La≦6.0/t  (1) 0.4/t≦Zr≦2.0/t  (3) 0.5/t≦Hf≦2.0/t  (4).

    摘要翻译: 本发明提供一种厚度为40μm以下的催化剂载体的Fe-Cr-Al系合金及其箔,该合金和箔在高温下耐氧化性提高,耐变形性优异。 具体地说,本发明提供一种Fe-Cr-Al系合金箔及其制造方法,其包含16.0〜25.0质量%的Cr,1〜8质量%的Al,La,Zr,余量为Fe, 杂质。 当La和Zr的质量百分含量满足下列范围时,其厚度为:Fe-Cr-Al系合金箔还可以包含Hf,余量为Fe和附带杂质,其中质量含量 La,Zr和Hf的%满足以下范围:

    Information processing apparatus and signal transmission method
    10.
    发明授权
    Information processing apparatus and signal transmission method 失效
    信息处理装置和信号传输方法

    公开(公告)号:US08625639B2

    公开(公告)日:2014-01-07

    申请号:US12551927

    申请日:2009-09-01

    申请人: Kunio Fukuda

    发明人: Kunio Fukuda

    IPC分类号: H04J1/00

    CPC分类号: H04L5/06 H04L25/02

    摘要: An information processing apparatus is provided which includes a signal multiplexing unit for multiplexing a plurality of transmission signals, each in a different frequency band and not containing a DC component, and a power signal supplied from a DC power supply and generating a multiplexed signal, a single signal cable through which the multiplexed signal generated by the signal multiplexing unit is transmitted, and a signal separating unit for separating the multiplexed signal transmitted through the signal cable into signals, each in a frequency band of one of the plurality of transmission signals, and a signal in a frequency band of the power signal.

    摘要翻译: 提供了一种信息处理装置,其包括:信号复用单元,用于多路复用多个传输信号,每个传输信号各自处于不同的频带,不包含DC分量;以及从DC电源提供的功率信号,并产生多路复用的信号; 传输由信号复用单元生成的多路复用信号的单信号电缆,以及信号分离单元,用于将通过信号电缆发送的多路复用信号分别变换成多个传输信号之一的频带中的信号,以及 功率信号的频带中的信号。