公开(公告)号：US20040144452A1

公开(公告)日：2004-07-29

申请号：US10732336

申请日：2003-12-09

发明人： Toshiyuki Katsumi ,  Kazuhiko Honda ,  Koki Tanaka ,  Kaoru Yamazaki ,  Takahiro Tanae ,  Katsuyoshi Kaneko ,  Yoshikazu Umeno ,  Yoshitaka Okitsu

IPC分类号： C22C038/00

CPC分类号： C22C38/02 ,  C21D6/005 ,  C21D6/008 ,  C21D8/0278 ,  C21D9/46 ,  C22C38/04 ,  C25D13/16 ,  Y10S148/902

摘要： The present invention: provides a good-workability and high-strength cold-rolled steel sheet excellent in post-painting corrosion resistance to the extent of securing excellent resistance to salt warm water immersion which is a good-workability and high-strength cold-rolled steel sheet excellent in post-painting corrosion resistance characterized in that: said steel sheet contains, in mass, 0.16 to 0.19% C, 1.10 to 1.30% Si, 1.50 to 1.60% Mn, not more than 0.1% P and 0.015 to 0.050% Al, with the balance consisting of Fe and unavoidable impurities; the average of the amount of Si incrassating on the surface of said steel sheet is not more than 20 times the Si concentration in said steel sheet; and the area percentage of the portions where the ratio of the Si concentration on the surface of said steel sheet to the Si concentration in said steel sheet is not less than 10 is not more than 95%.

公开(公告)号：US20040140017A1

公开(公告)日：2004-07-22

申请号：US10752985

申请日：2004-01-05

发明人： Daniel J. Branagan

IPC分类号： C22C038/00

CPC分类号： B22F5/12 ,  B22F7/08 ,  B22F9/002 ,  B22F2998/00 ,  B22F2999/00 ,  B23K9/04 ,  B23K35/3093 ,  C21D2201/03 ,  C22C38/22 ,  C22C38/32 ,  C22C45/02 ,  C23C4/04 ,  C23C4/131 ,  C23C30/00 ,  Y10T428/12021 ,  Y10T428/12097 ,  B22F9/008

摘要： The invention includes a method of producing a hard metallic material by forming a mixture containing at least 55% iron and at least one of B, C, Si, and P. The mixture is formed into an alloy and cooled to form a metallic having a hardness of greater than about 9.2 GPa. The invention includes a method of forming a wire by combining a metal strip and a powder. The strip and the powder are rolled to form a wire containing at least 55% iron and from 2-7 additional elements including at least one of C, Si and B. The invention also includes a method of forming a hardened surface on a substrate by processing a solid, applying the powder to a surface to form a layer containing metallic glass, and converting the glass to a crystalline material having a nanocrystalline grain size.

摘要翻译： 本发明包括通过形成含有至少55％的铁和B，C，Si和P中的至少一种的混合物来生产硬质金属材料的方法。将该混合物形成合金并冷却以形成具有 硬度大于9.2GPa。 本发明包括通过组合金属带和粉末来形成线的方法。 将带材和粉末轧制以形成含有至少55％的铁和2-7个附加元素的线，包括C，Si和B中的至少一种。本发明还包括一种通过在基底上形成硬化表面的方法 处理固体，将粉末施加到表面以形成含有金属玻璃的层，并将玻璃转化为具有纳米晶粒度的结晶材料。

公开(公告)号：US20040118485A1

公开(公告)日：2004-06-24

申请号：US10607805

申请日：2003-06-27

申请人： Stelco Inc.

发明人： Christian Albert Jager

IPC分类号： C22C038/00

CPC分类号： B24B31/14 ,  B24D18/00

摘要： A grinding ball having a 55 to 65 Rockwell C hardened outer shell of tempered martensite is adapted for use in heavy duty grinding environments. The ball is stress relieved to stabilize the ball against break up and/or spalling.

摘要翻译： 具有55至65洛氏硬度的回火马氏体外壳的研磨球适用于重型研磨环境。 球缓解压力以稳定球以破坏和/或剥落。

公开(公告)号：US20030192626A1

公开(公告)日：2003-10-16

申请号：US10229709

申请日：2002-08-28

申请人： Tohoku Steel Co., Ltd.

发明人： Tsunemi Takiguchi ,  Takashi Ebata

IPC分类号： C22C038/00

CPC分类号： C22C38/34 ,  C21D6/02 ,  C21D8/005 ,  C21D2211/005 ,  C22C38/06 ,  C22C38/50 ,  C22C38/60

摘要： A precipitation-hardened soft magnetic ferritic stainless steel comprises C: not more than 0.2 mass %, Si: 0.01-3.0 mass %, Mn: not more than 0.5 mass %, S: not more than 0.3 mass %, Cr: 12.0-19.0 mass %, Ni: 1.0-4.0 mass % and Al: 0.2-4.0 mass % and further contains at least one of Ti: less than 0.5 mass % and Zr: less than 0.3 mass % and the remainder being inevitable impurities and Fe, and has substantially a microstructure of a ferrite phase after a solution treatment and an aging treatment.

摘要翻译： 沉淀硬化的软磁铁素体不锈钢包括C：不大于0.2质量％，Si：0.01-3.0质量％，Mn：不大于0.5质量％，S：不大于0.3质量％，Cr：12.0-19.0 质量％，Ni：1.0〜4.0质量％，Al：0.2〜4.0质量％，进一步含有Ti：小于0.5质量％，Zr：小于0.3质量％，余量为不可避免的杂质和Fe中的至少一种， 在固溶处理和时效处理后，具有铁素体相的显微组织。

公开(公告)号：US20030192625A1

公开(公告)日：2003-10-16

申请号：US10120471

申请日：2002-04-10

发明人： J. Vincent Cordova

IPC分类号： C22C038/00

CPC分类号： C22C38/42 ,  C21D7/13 ,  C21D8/00 ,  C21D9/04 ,  C21D2211/009 ,  C22C38/04

摘要： An improved steel railroad rail, and methods for producing same, having a high-carbon content in a range from more than 0.9 to 1.1 wt % is provided that has increased wear resistance and increased fracture toughness over conventional steel rail. The high-carbon rail is characterized as having a pearlitic phase of an eutectoid nature. The average ultimate tensile strength is in a range from 204,860 to 222,120 psi, with a minimum of 174,000 psi. The average yield strength is in a range from 132,320 to 148,450 psi, with the minimum of 120,000 psi. The average percent elongation is in a range from 10.50 to 11.14, with a minimum of 10.00. The Brinell hardness on the surface at any position of the head top and upper gage corners of the rail is in a range from 390 to 440 BHN. The hardness 19 mm below the top surface is in a range from 360 to 435 BHN and 19 mm below the surface at the upper gage corners is in a range from 360 to 410 BHN. The characteristics of the steel rail produced in accordance with the present invention is a substantial improvement as compared with rail used today. The production of a fully pearlitic steel rail having a carbon content from more than 0.9 to 1.1 wt % is remarkable and unexpected. A steel rail of this type having a hardness in a range from 400 to 440 BHN and a combination of yield strength, ultimate tensile strength, elongation and surface and in-depth Brinell hardness goes beyond all expectations and results in a superior and commercially important steal rail.

摘要翻译： 提供了一种改进的钢铁轨道及其制造方法，其具有大于0.9至1.1重量％的高碳含量，其具有比常规钢轨更高的耐磨性和增加的断裂韧性。 高铁轨道的特点是具有共晶性质的珠光体相。 平均极限拉伸强度在204,860至222,120psi的范围内，最小值为174,000psi。 平均屈服强度在132,320至148,450psi的范围内，最小值为120,000psi。 平均百分比伸长率范围为10.50至11.14，最小为10.00。 轨道头顶和上限角的任何位置的表面上的布氏硬度在390至440 BHN的范围内。 上表面下方19mm的硬度在360〜435HBN的范围内，上限角处的表面下方的19mm的硬度在360〜410HBN的范围内。 与现在使用的轨道相比，根据本发明生产的钢轨的特征是显着的改进。 碳含量大于0.9〜1.1重量％的完全珠光体钢轨的生产是出人意料的。 这种类型的钢轨具有400至440 BHN的硬度以及屈服强度，极限拉伸强度，伸长率和表面以及深度布氏硬度的组合超出了所有预期，并导致了卓越和商业上重要的偷 轨。

公开(公告)号：US20030066577A1

公开(公告)日：2003-04-10

申请号：US10084495

申请日：2002-02-28

申请人： Kiyohito Ishida, Dokuritsu Gyousei Houjin Sangyo Gijutsu Sougo, Kenkyusho, Katsunari Oikawa

发明人： Kiyohito Ishida ,  Katsunari Oikawa ,  Toshimitsu Fujii ,  Yukinori Matsuda ,  Kozo Ozaki ,  Seiji Kurata ,  Takayuki Shimizu

IPC分类号： C22C038/00 ,  C21D005/10

CPC分类号： C22C38/48 ,  C22C38/001 ,  C22C38/06 ,  C22C38/10 ,  C22C38/12 ,  C22C38/14 ,  C22C38/16 ,  C22C38/18 ,  C22C38/42 ,  C22C38/44 ,  C22C38/46 ,  C22C38/50 ,  C22C38/52

摘要： A free-cutting tool steel is provided containing Fe and C in an amount of 0.1 to 2.5 wt %, Ti and or Zr where WTinull0.52WZr constitutes 0.03 to 3.5 wt %, and WTi represents Ti content and WZr represents Zr content, at least any one of S, Se and Te where WSnull0.4WSenull0.25WTe constitutes 0.01 to 1.0 wt %, and (WTinull0.52WZr)/(WSnull0.4WSenull0.25WTe) constitutes 1 to 4, and WS represents S content, WSe represents Se content and WTe represents Te content; and dispersed therein a texture thereof from 0.1 to 10% in terms of area ratio in a section of a machinability improving compound phase of a metallic element component of Ti and/or Zr as major components, and a binding component for the metallic element component containing C and any one of S, Se and Te.

摘要翻译： 提供含有0.1〜2.5重量％的Fe和C的自由切削工具钢，其中WTi + 0.52WZr为0.03〜3.5重量％的Ti和Zr，WTi为Ti含量，WZr为Zr含量， WS + 0.4WSe + 0.25WTe构成0.01〜1.0重量％的S，Se和Te中的至少一个，（WTi + 0.52WZr）/（WS + 0.4WSe + 0.25WTe）构成1〜4，WS表示S 内容，WSe表示Se内容，WTe表示Te内容; 在作为主要成分的Ti和/或Zr的金属元素成分的切削性提高化合物相的截面中以面积比计，其构成为0.1〜10％，含有金属元素成分的结合成分含有 C和S，Se和Te中的任何一个。

公开(公告)号：US20020197531A1

公开(公告)日：2002-12-26

申请号：US10053467

申请日：2001-11-07

发明人： Hiroshi Inoue ,  Shinichiro Yamada ,  Takuya Endo

IPC分类号： H01M004/58 ,  C01B033/06 ,  H01M004/38 ,  C22C038/60 ,  C22C038/00 ,  C22C009/08 ,  C22C009/00 ,  C01B033/00

CPC分类号： H01M10/0427 ,  C22C9/00 ,  C22C28/00 ,  C22C30/00 ,  C22C45/00 ,  C22C45/001 ,  H01M4/38 ,  H01M4/386 ,  H01M4/387 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M4/587 ,  H01M10/0525 ,  H01M2004/027

摘要： A negative electrode active material includes a composition A-B-C containing a first element A which is at least one selected from copper and iron, a second element B which is at least one selected from silicon and tin, and a third element C which is at least one selected from the group consisting of indium, antimony, bismuth, and lead. A nonaqueous electrolyte battery includes a negative electrode containing the negative electrode active material, a positive electrode containing a positive electrode active material, and a nonaqueous electrolyte. The nonaqueous electrolyte battery has a large discharge capacity and excellent cycle performance.

摘要翻译： 负极活性物质包括含有选自铜和铁中的至少一种的第一元素A，选自硅和锡中的至少一种的第二元素B和至少一种第三元素C的组合物ABC 选自铟，锑，铋和铅组成的组。 非水电解质电池包括含有负极活性物质的负极，含有正极活性物质的正极和非水电解质。 非水电解质电池具有大的放电容量和优异的循环性能。

公开(公告)号：US20020148536A1

公开(公告)日：2002-10-17

申请号：US10043903

申请日：2002-01-11

申请人： NKK CORPORATION

发明人： Katsumi Nakajima ,  Takeshi Fujita ,  Toshiaki Urabe ,  Yuji Yamasaki ,  Fusato Kitano

IPC分类号： C22C038/00 ,  C21D008/00

CPC分类号： C22C38/14 ,  C21D8/0226 ,  C21D8/0236 ,  C21D8/0273 ,  C21D8/0278 ,  C21D2211/004 ,  C21D2211/005 ,  C22C38/002 ,  C22C38/004 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/12 ,  Y10T428/12799

摘要： The steel sheet comprises: a ferritic phase having ferritic grains of 10 or more grain size number and ferritic grain boundaries; and at least one kind of Nb precipitates and Ti precipitates. The ferritic grain has a low density region with a low precipitate density in the vicinity of grain boundary. The low density region has a precipitate density of 60% or less to the precipitate density at center part of the ferritic grain. The steel sheet consists essentially of 0.002 to 0.02% C, 1% or less Si, 3% or less Mn, 0.1% or less P, 0.02% or less S, 0.01 to o.1% sol.Al, 0.007% or less N, at least one element of 0.01 mass %, and the balance being Fe.

摘要翻译： 钢板包括：铁素体相，其具有10个以上的晶粒数的铁素体晶粒和铁素体晶界; 和至少一种Nb析出物和Ti沉淀物。 铁素体晶粒在晶界附近具有低沉淀密度的低密度区域。 低密度区域的铁素体晶粒的中央部的析出密度为60％以下。 钢板基本上由0.002〜0.02％的C，1％以下的Si，3％以下的Mn，0.1％以下的P，0.02％以下的S，0.01〜0.1％的sol.Al，0.007％以下 N，0.01质量％以上的至少一种元素，余量为Fe。

公开(公告)号：US20020117022A1

公开(公告)日：2002-08-29

申请号：US09966425

申请日：2001-09-28

发明人： Masahito Uchikoshi ,  Norio Yokoyama ,  Tamas Kekesi ,  Minoru Isshiki

IPC分类号： C22C038/00 ,  C21C007/04

CPC分类号： C23C14/3414 ,  C22B3/44 ,  C22B9/226 ,  C22C38/00 ,  Y02P10/234

摘要： High purity iron with a very few content of impurities such as copper, a method of manufacturing thereof, and high purity iron targets are provided. The iron containing impurities such as copper is dissolved in a hydrochloric acid solution, and the concentration of the hydrochloric acid of the aqueous solution of iron chloride is adjusted to 0.1 kmol/m3 to 6 kmol/m3. Then, iron is added in the aqueous solution of iron chloride, and an inert gas is injected into the solution with agitating, in order to convert the trivalent iron ions and divalent copper ions contained in the aqueous solution of iron chloride respectively to divalent iron ions and monovalent copper ions. Then, the aqueous solution of iron chloride is fed into a column filled up with the anion exchange resins. The divalent iron ions are not absorbed on the anion exchange resins although the monovalent copper ions are absorbed on the anion exchange resins. Therefore, copper can be separated from the aqueous solution of iron chloride. And then, the aqueous solution of iron chloride is evaporated to dryness, oxidized and heated in a hydrogen atmosphere to generate iron.

摘要翻译： 提供了非常少量杂质如铜的高纯度铁，其制造方法和高纯铁靶。 将含有铜等杂质的铁溶解在盐酸溶液中，将氯化铁水溶液的盐酸浓度调整为0.1kmol / m 3至6kmol / m 3。 然后，在氯化铁水溶液中加入铁，向搅拌的溶液中注入惰性气体，以将氯化铁水溶液中所含的三价铁离子和二价铜离子分别转换为二价铁离子 和一价铜离子。 然后，将氯化铁水溶液加入填充有阴离子交换树脂的柱中。 尽管单价铜离子被吸收在阴离子交换树脂上，但是二价铁离子不会吸收在阴离子交换树脂上。 因此，可以从氯化铁水溶液中分离出铜。 然后，将氯化铁水溶液蒸发至干，在氢气气氛中氧化和加热以产生铁。

公开(公告)号：US20020011284A1

公开(公告)日：2002-01-31

申请号：US09341722

申请日：1999-07-15

发明人： INGO VON HAGEN ,  MARKUS RING ,  GERD HEINZ ,  BERNHARD KOSCHLIG ,  KURT NIEDERHOFF

IPC分类号： C22C038/12 ,  C22C038/00 ,  C21D009/08

CPC分类号： C22C38/12 ,  C21D8/10 ,  C21D9/08

摘要： The invention relates to a process for producing seamless line pipes within the quality grade range X 52 to X 90, with a stable yield strength up to a temperature of use of 200null C., and with an essentially constant stress-strain characteristic, by hot-rolling a pipe blank made from a steel which contains the following alloying elements (% by weight): 1 C0.06-0.18% Simax. 0.40% Mn0.80-1.40% Pmax. 0.025% Smax. 0.010% Al0.010-0.060% Momax. 0.50% Vmax. 0.10% Nbmax. 0.10% Nmax. 0.015% W>0.30-1.00% remainder iron and usual impurities, in which process the hot rolling is followed by reheating of the cooled pipes to above AC3, after which the pipes are quenched to below 100null C. at a cooling rate of at least 15null C./s and are then tempered within the temperature range from 500 to 700null C.