公开(公告)号：WO2013099219A8

公开(公告)日：2014-06-26

申请号：PCT/JP2012008267

申请日：2012-12-25

申请人： JFE STEEL CORP

发明人： OKABE SEIJI ,  TAKAJO SHIGEHIRO ,  KITANI YASUSHI

IPC分类号： C21D8/12 ,  B23K15/00 ,  B23K26/08 ,  C22C38/00 ,  C22C38/04 ,  C22C38/60 ,  H01F1/16

CPC分类号： C21D8/1244 ,  C21D8/1294 ,  C22C38/00 ,  C22C38/001 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/60 ,  H01F41/00

摘要： The present invention proposes a device constitution that can reliably carry out refinement of magnetic domains by high-energy beam irradiation with a laser, electron beam, or the like even when the rate of movement of a grain-oriented electrical steel sheet changes. This device to improve iron loss properties scans a high energy beam across the feed path of a grain-oriented electrical steel sheet for which final annealing has been completed and irradiates the steel sheet surface with the high energy beam as the sheet moves, refining the magnetic domains. In this device, an irradiation mechanism for scanning the high energy beam in a direction perpendicular to the feed direction of the steel sheet is provided with a function for orienting the scanning direction such that the perpendicular direction is inclined to the feed direction at an angle based on the rate of movement of the steel sheet along the feed path.

摘要翻译： 本发明提出了即使当取向电工钢板的移动速度变化时，也能够通过激光，电子束等的高能束照射可靠地进行磁畴的精细化的装置结构。 用于提高铁损性能的装置通过最终退火完成的晶粒取向电工钢板的进给路径扫描高能束，并随着片材移动而用高能束照射钢板表面， 域。 在该装置中，用于沿与钢板的进给方向垂直的方向扫描高能束的照射机构具有将扫描方向定向为使得垂直方向以进给方向倾斜为基准的功能 关于钢板沿着进给路径的运动速率。

公开(公告)号：WO2013099192A8

公开(公告)日：2014-06-26

申请号：PCT/JP2012008211

申请日：2012-12-21

申请人： JFE STEEL CORP

发明人： NAKATA HIROSHI ,  SHIBATA TOMOAKI ,  KAMI CHIKARA

IPC分类号： C22C38/00 ,  B21B3/00 ,  C21D8/02 ,  C22C38/38 ,  C22C38/58

CPC分类号： C21D8/0205 ,  B21B1/00 ,  C21D8/02 ,  C21D8/0226 ,  C21D8/105 ,  C21D2211/002 ,  C21D2211/003 ,  C21D2211/005 ,  C21D2211/008 ,  C21D2211/009 ,  C22C38/00 ,  C22C38/001 ,  C22C38/002 ,  C22C38/005 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/22 ,  C22C38/24 ,  C22C38/26 ,  C22C38/28 ,  C22C38/32 ,  C22C38/38 ,  C22C38/42 ,  C22C38/44 ,  C22C38/46 ,  C22C38/48 ,  C22C38/50 ,  C22C38/58

摘要： The purpose of the present invention is to provide a hot rolled high tensile strength steel sheet which does not undergo local buckling when formed into a steel pipe or tube and deformed by bending, shows excellent deformation characteristics after being formed into a pipe or tube, and is appropriately usable as line pipes and oil well pipes or tubes. The constitution of the present invention is a composition comprising, in mass%, 0.04-0.08% of C, not more than 0.50% of Si, 0.8-2.2% of Mn, not more than 0.02% of P, not more than 0.006% of S, not more than 0.1% of Al, not more than 0.008% of N, 0.05-0.8% of Cr, 0.01-0.08% of Nb, 0.001-0.12% of V, and 0.005-0.04% of Ti, wherein the contents of Nb, V and Ti are controlled so as to satisfy a definite requirement, with the balance made up of Fe and incidental impurities, characterized in that a surface layer has a structure comprising bainite as a primary phase, 0.5-4% by volume of martensite as a secondary phase, and not more than 10% by volume in total of one or more members selected from among a ferrite phase, pearlite and cementite as a tertiary phase.

摘要翻译： 本发明的目的是提供一种热轧高强度钢板，其在形成为钢管或管时形成弯曲而变形时不发生局部屈曲，在形成管或管之后表现出优异的变形特性， 适用于管线管和油井管或管。 本发明的组成是以质量％计含有0.04-0.08％C，不超过0.50％Si，0.8-2.2％Mn，不大于0.02％P，不超过0.006％ 的S，不大于0.1％的Al，不大于0.008％的N，0.05-0.8％的Cr，0.01-0.08％的Nb，0.001-0.12％的V和0.005-0.04％的Ti，其中 控制Nb，V和Ti的含量，以满足一定的要求，其余量由Fe和杂质构成，其特征在于，表面层具有包含贝氏体作为主相的结构，0.5-4体积％ 的马氏体作为第二相，总共不超过10体积％的选自铁素体相，珠光体和渗碳体中的一种以上的第三相。

公开(公告)号：WO2013099235A8

公开(公告)日：2014-06-05

申请号：PCT/JP2012008307

申请日：2012-12-26

申请人： JFE STEEL CORP

发明人： TAKAGI SHUSAKU ,  KANEKO SHINJIRO

IPC分类号： C22C38/00 ,  B21B3/00 ,  C21D9/46 ,  C22C38/06 ,  C22C38/58 ,  C23C2/02 ,  C23C2/06 ,  C23C2/28

CPC分类号： C23C2/02 ,  B32B15/013 ,  C21D1/26 ,  C21D8/0205 ,  C21D8/0226 ,  C21D8/0263 ,  C21D9/46 ,  C21D2211/005 ,  C21D2211/008 ,  C22C38/00 ,  C22C38/001 ,  C22C38/002 ,  C22C38/005 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/08 ,  C22C38/12 ,  C22C38/14 ,  C22C38/16 ,  C22C38/34 ,  C22C38/38 ,  C23C2/06 ,  C23C2/28 ,  Y10T428/12799

摘要： According to the present invention, a high-strength steel sheet which has a high tensile strength (TS) of 980MPa or higher and which stably exhibits excellent bendability over the whole of the sheet can be obtained. This high-strength steel sheet has a prescribed steel composition and a structure wherein: the average ferrite grain diameter is 10μm or less; the volume fraction of ferrite is 30 to 70%; the total volume fraction of martensite and retained austenite is 10% or less; and the ratio of pairs of adjacent phases such that the nano-hardness difference between the adjacent phases of each pair is 4GPa or smaller is 90% or more.

摘要翻译： 根据本发明，可以获得具有高抗拉强度（TS）为980MPa或更高并且在整个片材上稳定地显示出优异的弯曲性的高强度钢板。 该高强度钢板具有规定的钢组成和其中：平均铁素体晶粒直径为10μm以下的结构; 铁素体的体积分数为30〜70％。 马氏体和残余奥氏体的总体积分数为10％以下; 和相邻对的比例，使得每对相邻相之间的纳米硬度差为4GPa或更小，为90％以上。

公开(公告)号：WO2014054186A1

公开(公告)日：2014-04-10

申请号：PCT/JP2012076256

申请日：2012-10-03

申请人： JFE STEEL CORP ,  TOKYO INST TECH

发明人： OOTSUKA SHINJI ,  NAKAMARU HIROKI ,  FUJITA SAKAE ,  TSURU TOORU

IPC分类号： G01N27/26 ,  G01N17/02

CPC分类号： G01N17/02 ,  G01N27/304 ,  G01N27/4045 ,  G01N33/203

摘要： The present invention addresses a problem of providing a measuring device which can accurately determine the amount of hydrogen that has penetrated into a metal with the progress of corrosion, while taking account of any change of anode-side residual current accompanying a change in the temperature of the environment. One surface of a specimen constituted of a metallic material is used as a hydrogen penetration surface, which is exposed to a corrosive environment and into which the hydrogen that is evolved by a corrosion reaction penetrates, and the other surface is used as a hydrogen detection surface. An electrochemical cell set configured of a plurality of cells is disposed on the hydrogen detection surface. An aqueous electrolyte solution having a pH of 9-13 is packed into each of the cells, and a reference electrode and a counter electrode that are independent of each other are disposed therein. At least one of the cells is used as a standard cell for correcting residual current, and a protective film for avoiding contact with the corrosive environment is disposed in the area of the hydrogen penetration surface which corresponds to the hydrogen detection area for the standard cell. The anode current value detected with each cell other than the standard cell is corrected with the value of residual current detected with the standard cell. On the basis of the corrected anode current value, the amount of hydrogen that has penetrated from the corrosion-surface side is calculated.

摘要翻译： 本发明解决了提供一种测量装置的问题，该测量装置能够随着腐蚀的进行而精确地确定渗透到金属中的氢的量，同时考虑到伴随温度变化的阳极侧剩余电流的任何变化 环境。 使用由金属材料构成的试样的一个表面作为氢气侵蚀面，暴露在腐蚀环境中，通过腐蚀反应渗入的氢被渗透到其中，另一个表面用作氢气检测面 。 由多个电池构成的电化学电池组设置在氢气检测表面上。 在每个电池中填充pH为9-13的电解质水溶液，并且在其中设置彼此独立的参比电极和对电极。 至少一个电池被用作用于校正残余电流的标准电池，并且用于避免与腐蚀环境接触的保护膜设置在对应于标准电池的氢气检测区域的氢气穿透表面的区域中。 用标准单元以外的各个单元检测的阳极电流值用标准单元检测出的剩余电流的值进行校正。 基于校正的阳极电流值，计算从腐蚀面侧渗透的氢的量。

公开(公告)号：WO2013038663A8

公开(公告)日：2014-04-03

申请号：PCT/JP2012005792

申请日：2012-09-12

申请人： JFE STEEL CORP ,  KANEKO RIE ,  MATSUDA TAKESHI ,  MATSUZAKI AKIRA ,  OSHIMA YASUHIDE

发明人： KANEKO RIE ,  MATSUDA TAKESHI ,  MATSUZAKI AKIRA ,  OSHIMA YASUHIDE

IPC分类号： C23C22/60 ,  C23C22/74

CPC分类号： C23C22/62 ,  B05D3/00 ,  B05D3/02 ,  C09D5/08 ,  C09D5/082 ,  C09D5/084 ,  C09D5/086 ,  C23C22/60 ,  C23C22/74 ,  C23C2222/20 ,  Y10T428/12569

摘要： Provided is a zinc or zinc alloy coated steel sheet which as well as having excellent corrosion resistance and various excellent top-coating properties, also achieves an excellent balance of weldability, conductivity and corrosion resistance, without including a chromium compound. Also provided are a surface-treatment solution and a manufacturing method for obtaining the zinc or zinc alloy coated steel sheet. A zinc or zinc alloy coated steel sheet characterised by comprising a surface-treatment film, deposited in an amount of 100-600mg/m2 per surface, the film being obtained by coating a surface-treatment solution on the surface of the zinc or zinc alloy coated steel sheet, and drying by heat, the surface-treatment solution having a pH of 8-10 and being a mixture, in a specific ratio, of: a silane compound (A) having a hydrolyzable group and being obtained from a silane coupling agent (a1) having a glycidyl group, a tetraalkoxysilane (a2) and a chelating agent (a3); a zirconium carbonate compound (B); a vanadic acid compound (C); a nitric acid compound (D); and water.

摘要翻译： 提供一种锌或锌合金涂层钢板，并且具有优异的耐腐蚀性和各种优异的顶涂性，还可以在不包含铬化合物的情况下实现良好的焊接性，导电性和耐腐蚀性的平衡。 还提供了一种用于获得锌或锌合金涂层钢板的表面处理溶液和制造方法。 一种锌或锌合金涂层钢板，其特征在于包括表面处理膜，每个表面以100-600mg / m 2的量沉积，该膜通过在锌或锌合金的表面上涂覆表面处理溶液而获得 涂覆钢板，通过加热干燥，表面处理液的pH为8〜10，以特定比例混合为：具有可水解基团的硅烷化合物（A），由硅烷偶联剂 具有缩水甘油基的试剂（a1），四烷氧基硅烷（a2）和螯合剂（a3）; 碳酸锆化合物（B）; 钒酸化合物（C）; 硝酸化合物（D）; 和水。

公开(公告)号：WO2009104811A1

公开(公告)日：2009-08-27

申请号：PCT/JP2009053480

申请日：2009-02-19

申请人： JFE STEEL CORP ,  OZEKI TAKAFUMI ,  TAKADA HAJIME

发明人： OZEKI TAKAFUMI ,  TAKADA HAJIME

IPC分类号： G01N29/04

CPC分类号： G01N29/069 ,  G01N29/221 ,  G01N2291/044 ,  G01N2291/102

摘要： An ultrasonic measurement device comprises a transmitting and receiving means (11, 12) and an aperture synthesis processing means (14). The transmitting and receiving means (11, 12), while allowing a focal point formed by an ultrasonic probe (10) to relatively scan a specimen, transmits an ultrasonic wave toward the specimen and receives a reflected wave from an internal defect of the specimen. The aperture synthesis processing means (14) performs aperture synthesis processing on a signal received at each measurement point using a reference transmission time which is obtained by treating the waveform of the ultrasonic wave transmitting between the ultrasonic probe and the internal defect as an ultrasonic waveform synthesized over the entire surface of a transmission and reception surface.

摘要翻译： 超声波测量装置包括发射和接收装置（11,12）和孔径合成处理装置（14）。 发送和接收装置（11,12）在允许由超声波探头（10）形成的焦点相对地扫描样本的同时，向样本发送超声波，并从样本的内部缺陷接收反射波。 孔径合成处理装置（14）使用通过处理在超声波探头和内部缺陷之间传输的超声波的波形获得的参考传播时间作为合成的超声波波，对在每个测量点接收的信号进行孔径合成处理 在传输和接收表面的整个表面上。

公开(公告)号：WO2016129015A8

公开(公告)日：2017-06-15

申请号：PCT/JP2015000685

申请日：2015-02-13

申请人： JFE STEEL CORP

发明人： HAYAKAWA YASUYUKI ,  SENDA KUNIHIRO ,  TERASHIMA TAKASHI

IPC分类号： C22C38/00 ,  C21D8/12 ,  C22C38/60 ,  H01F1/16

CPC分类号： C22C38/60 ,  C21D8/1222 ,  C21D8/1233 ,  C21D8/1238 ,  C21D8/1272 ,  C21D8/1283 ,  C22C38/00 ,  C22C38/001 ,  C22C38/002 ,  C22C38/004 ,  C22C38/008 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/08 ,  C22C38/12 ,  C22C38/16 ,  C22C38/34 ,  H01F1/16

摘要： A grain-oriented electrical steel sheet having a chemical composition containing, in % by mass, 0.005% or less of C, 2.0 to 4.5% of Si and 0.5% or less of Mn, and also containing, in % by mass, Sb and P in such amounts that the formulae 0.01% ≤ [%Sb] ≤ 0.20% and 0.02% ≤ [%P] ≤ 2.0×[%Sb] can be satisfied, with the remainder made up by Fe and unavoidable impurities. The grain-oriented electrical steel sheet has a magnetization force (TD-H10) and an iron loss (TD-W10) of 200 A/m or more and 1.60 W/kg or more, respectively, when the grain-oriented electrical steel sheet is excited to 1.0 T at 50 Hz in a direction orthogonal to the rolling direction. By employing this configuration, it becomes possible to produce a grain-oriented electrical steel sheet having excellent trans iron loss steadily on an industrial scale at low cost.

摘要翻译： 1。一种取向性电磁钢板，其特征在于，以质量％计，含有C：0.005％以下，Si：2.0〜4.5％，Mn：0.5％以下，并且还含有以质量％计的Sb和 P的含量可以满足公式：0.01％≤[％Sb]≤0.20％和0.02％≤[％P]≤2.0×[％Sb]，余量由Fe和不可避免的杂质组成。 在方向性电磁钢板中，取向电磁钢板的磁化力（TD-H10）和铁损（TD-W10）分别为200A / m以上且1.60W / kg以上 在与轧制方向正交的方向上以50Hz激励到1.0T。 通过采用该结构，能够以低成本制造工业规模的转铁损优异的方向性电磁钢板。

公开(公告)号：WO2016129235A8

公开(公告)日：2017-06-08

申请号：PCT/JP2016000505

申请日：2016-02-01

申请人： JFE STEEL CORP

发明人： SUEHIRO RYUICHI ,  TERASHIMA TAKASHI

IPC分类号： C25F3/06 ,  C21D8/12 ,  C22C38/00 ,  C22C38/06 ,  G03F7/023 ,  G03F7/027 ,  G03F7/031 ,  G03F7/033 ,  G03F7/038 ,  G03F7/039 ,  G03F7/40 ,  H01F1/16

CPC分类号： G03F7/039 ,  C21D6/005 ,  C21D6/008 ,  C21D8/005 ,  C21D8/12 ,  C21D8/1266 ,  C21D8/1272 ,  C21D8/1277 ,  C21D8/1294 ,  C21D9/46 ,  C21D2201/05 ,  C22C38/00 ,  C22C38/001 ,  C22C38/004 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C25F3/06 ,  G03F7/022 ,  G03F7/023 ,  G03F7/027 ,  G03F7/031 ,  G03F7/033 ,  G03F7/038 ,  G03F7/20 ,  G03F7/325 ,  G03F7/40 ,  H01F1/16

摘要： Provided is a method for producing a grain-oriented electrical steel sheet with which it is possible to achieve both favorable iron loss and high productivity. In groove formation for magnetic domain refinement, a resist comprising a photosensitive resin is applied, and exposed and developed to thereby form a linear-shaped ferrite exposed section. In electrolytic etching that is subsequently performed, a current density ρ=I/S with respect to the exposed base metal section is 7.5 A/cm2 or higher, where I is a current supplied to an electrode and S is the surface area of the exposed base metal section in a steel sheet surface of the same surface area as the electrode.

摘要翻译： 本发明提供一种能够同时实现良好的铁损和高生产率的晶粒取向电工钢板的制造方法。 在用于磁畴细化的沟槽形成中，涂敷包含光敏树脂的抗蚀剂，并且曝光和显影，从而形成线形铁氧体暴露部分。 在随后进行的电解蚀刻中，相对于露出的母材金属部的电流密度ρ= I / S为7.5A / cm 2以上，I为向电极供给的电流，S为露出的表面积 在与电极相同的表面积的钢板表面上形成母材。

公开(公告)号：WO2016108256A8

公开(公告)日：2017-06-08

申请号：PCT/JP2015001243

申请日：2015-03-06

申请人： JFE STEEL CORP

发明人： HIROSAWA TOSHIYUKI ,  HIGUCHI TAKAHIDE ,  YAMAMOTO TETSUYA ,  OYAMA NOBUYUKI

IPC分类号： C22B1/16 ,  C22B1/243

CPC分类号： C22B1/16 ,  C22B1/243

摘要： The purpose of the present invention is to further improve reducibility in sintered ore. These quasiparticles for sintering, intended for use in the manufacture of blast furnace sintered ore, include at least an iron ore starting material, a limestone-based starting material, and a solid-fuel-based starting material, the particles having the iron ore starting material as the nucleus, with the limestone-based starting material and solid-fuel-starting material distributed surrounding the nucleus. The iron ore starting material nuclei include iron ore having an alkali metal content of less than 0.05 mass%, and include iron ore having an alkali metal content of 0.05 mass% or above.

摘要翻译： 本发明的目的是进一步提高烧结矿的还原性。 用于制造高炉烧结矿的这些用于烧结的准颗粒至少包括铁矿石原料，石灰石基原料和固体燃料基原料，所述颗粒具有开始的铁矿石 材料为原子核，石灰石为主的原料和固体燃料原料分布在原子核的周围。 铁矿石原料核包括碱金属含量小于0.05质量％的铁矿石，并且包括碱金属含量为0.05质量％或更高的铁矿石。

公开(公告)号：WO2016120938A8

公开(公告)日：2017-05-18

申请号：PCT/JP2015006331

申请日：2015-12-18

申请人： JFE STEEL CORP

发明人： YANO TAKAYOSHI ,  ISHIKAWA SHIN

IPC分类号： H01M8/0202 ,  C25D5/26 ,  C25D5/48 ,  C25D7/00 ,  H01M8/10

CPC分类号： H01M8/0245 ,  C25D3/60 ,  C25D5/48 ,  C25D7/00 ,  H01M8/0202 ,  H01M8/0208 ,  H01M8/0232 ,  H01M8/10 ,  H01M2008/1095

摘要： This stainless steel sheet comprises a stainless steel base body and an Sn alloy layer cover film on the base body surface, the Sn alloy layer cover film having microcracks in an amount of 10/cm2 or greater.

摘要翻译： 该不锈钢板在基体表面上具有不锈钢基体和Sn合金层覆盖膜，Sn合金层覆盖膜具有10 / cm2或更大的微裂纹。