公开(公告)号：WO2016088333A8

公开(公告)日：2017-04-27

申请号：PCT/JP2015005842

申请日：2015-11-24

申请人： JFE STEEL CORP

发明人： TAKASHITA TAKUYA ,  KOBAYASHI AKIO ,  NAKAMURA NAOMICHI ,  MAETANI TOSHIO ,  SONOBE AKIO ,  SATO ITSUYA

IPC分类号： B22F1/00 ,  C22C33/02 ,  C22C38/00 ,  C22C38/16

CPC分类号： B22F1/00 ,  C22C33/02 ,  C22C38/00 ,  C22C38/16

摘要： An Fe-Mo-Cu-C-type alloy steel powder for powder metallurgy, wherein the alloy steel powder contains 0.2-1.5 mass% of Mo, 0.5-4.0 mass% of Cu, and 0.1-1.0 mass% of C, the remainder comprising Fe and unavoidable impurities, the average particle diameter of an iron-based powder being set to 30-120 µm and the average particle diameter of a Cu powder being set to 25 µm or less, whereby an alloy steel powder for powder metallurgy is obtained whereby the mechanical characteristics of a part obtained by sintering a press-molded article of the powder and furthermore carburizing/quenching/tempering the sintered press-molded article have tensile strength, toughness, or sintered density at least equivalent to that of a Ni-added part while not including Ni as a component.

摘要翻译： 一种粉末冶金用Fe-Mo-Cu-C系合金钢粉，其特征在于，合金钢粉含有Mo：0.2〜1.5质量％，Cu：0.5〜4.0质量％，C：0.1〜1.0质量％ 含有Fe和不可避免的杂质，将铁基粉末的平均粒径设定为30〜120μm，将Cu粉末的平均粒径设定为25μm以下，从而得到粉末冶金用合金钢粉末 由此通过烧结粉末的压制成型制品并且进一步对烧结的压制成型制品进行渗碳/淬火/回火而获得的部件的机械特性具有至少等同于添加Ni的拉伸强度，韧性或烧结密度 而不包括镍作为一个组成部分。

公开(公告)号：WO2016104813A8

公开(公告)日：2017-04-06

申请号：PCT/JP2015086588

申请日：2015-12-24

申请人： JFE STEEL CORP

发明人： SHINGAKI YUKIHIRO ,  OKUBO TOMOYUKI ,  INOUE HIROTAKA

IPC分类号： C22C38/00 ,  C21D8/12 ,  C21D9/46 ,  C22C38/60 ,  C23C8/26 ,  C23C8/50 ,  H01F1/16

CPC分类号： C21D8/1288 ,  C21D8/1222 ,  C21D8/1233 ,  C21D8/1255 ,  C21D8/1272 ,  C21D8/1283 ,  C21D9/46 ,  C22C38/00 ,  C22C38/001 ,  C22C38/002 ,  C22C38/004 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/08 ,  C22C38/12 ,  C22C38/14 ,  C22C38/16 ,  C22C38/18 ,  C22C38/60 ,  C23C8/02 ,  C23C8/26 ,  C23C8/50 ,  C23C8/80 ,  H01F1/16 ,  H01F1/18

摘要： Provided is a grain-oriented electrical steel sheet with superior magnetic characteristics, such electromagnetic steel sheet being provided with an undercoat film having a high TiN ratio which is advantageous for imparting tension to a steel sheet. This grain-oriented electrical steel sheet is characterized: by having an undercoat film in which, in an analysis using thin-film X-ray diffraction, a peak value PTiN of TiN (Osbornite) found in the range of 42°

摘要翻译： 本发明提供一种具有优异的磁特性的方向性电磁钢板，这种电磁钢板设置有具有高TiN比的底涂层，其有利于赋予钢板张力。 该晶粒取向电工钢板的特征在于：在使用薄膜X射线衍射的分析中，具有在42°<2θ<43°范围内发现的TiN（海绵石）的峰值PTiN的底涂膜 °，35°<2θ<36°范围内的Mg2SiO4（镁橄榄石）的峰值PMg2SiO4均大于0，PTiN≥PMg2SiO4的关系满足; 铁损W17 / 50为1.0W / kg以下。

公开(公告)号：WO2016006159A8

公开(公告)日：2016-12-29

申请号：PCT/JP2015002851

申请日：2015-06-05

申请人： JFE STEEL CORP

发明人： TAKEDA GENTARO ,  MIYAKE MASARU ,  MAKIMIZU YOICHI ,  SUZUKI YOSHITSUGU ,  SUZUKI YOSHIKAZU

IPC分类号： C23C2/02 ,  C21D9/56 ,  C22C38/00 ,  C22C38/04 ,  C23C2/06 ,  C23C2/28 ,  C23C2/40

CPC分类号： C21D9/561 ,  C21D9/56 ,  C22C38/00 ,  C22C38/04 ,  C23C2/02 ,  C23C2/06 ,  C23C2/28 ,  C23C2/40

摘要： Provided is a method of producing a galvannealed steel sheet, the production method being capable of achieving a favorable plated appearance and of suppressing reductions in tensile strength. This method of producing a galvannealed steel sheet has: a step wherein a steel strip is transported through the inside of an annealing furnace, in order through a heating zone that includes a direct-firing-type furnace, a soaking zone, and a cooling zone, and the steel strip is annealed; a step wherein, after being discharged from the cooling zone, the steel strip is hot-dip galvanized; and a step wherein the zinc-plating applied to the steel strip is heated and alloyed. The production method is characterized in that a mixed gas that includes a humidified gas and a dry gas is supplied to the inside of the soaking zone from at least one gas supply port that is provided to the height-direction lower half of the soaking zone, and in that the dew point measured in the height-direction upper fifth of the soaking zone and the dew point measured in the height-direction lower fifth are both -20-0 ℃.

摘要翻译： 提供一种合金化热浸镀锌钢板的制造方法，其制造方法能够获得良好的镀层外观和抑制拉伸强度的降低。 该合金化热浸镀锌钢板的制造方法具有以下步骤：通过包括直接燃烧型炉，均热区和冷却区的加热区，通过退火炉的内部输送钢带 ，钢带退火; 在从冷却区排出后，对钢带进行热浸镀锌的工序; 以及施加到钢带上的镀锌和合金化的步骤。 该制造方法的特征在于，从设置在均热区域的高度方向下半部的至少一个供气口将含有加湿气体和干燥气体的混合气体供给到均热区域的内部， 并且在均热区域的高度方向上方测得的露点和在高度方向下降到第五点的露点都为-20℃。

公开(公告)号：WO2015146114A8

公开(公告)日：2016-08-18

申请号：PCT/JP2015001596

申请日：2015-03-20

申请人： JFE STEEL CORP

发明人： ICHIKAWA KAZUHIRA ,  HIROSAWA TOSHIYUKI ,  WATAKABE SHIRO

IPC分类号： C21B5/00 ,  C21B7/20

CPC分类号： C21B5/008 ,  C21B5/006 ,  C21B7/20 ,  C21B2300/04

摘要： A method for charging a blast furnace raw material of an ore material and coke into a blast furnace using a rotating chute, wherein the blast furnace raw material is charged into the blast furnace as a coke layer and an ore layer, without mixing the coke being charged into the blast furnace with an ore material, or is charged into the blast furnace as a coke layer and a mixed layer of coke and an ore material formed by mixing a portion of the coke being charged into the blast furnace with an ore material. By appropriately controlling the ratio of the minimum layer thickness of the coke layer and the arithmetic average particle diameter of the coke in the blast furnace belly section when one charge of the coke layer charged into the blast furnace reaches the belly section of the furnace, and by controlling the average layer thickness of the coke layer in the furnace belly section so as to be no greater than 190 mm, it is possible to simultaneously achieve stable blast furnace operation and improved reduction efficiency due to thinning of the ore layer.

摘要翻译： 一种利用旋转滑槽将矿石和焦炭的高炉原料装入高炉的方法，其中将高炉原料作为焦炭层和矿石层加入到高炉中，而不将焦炭混合 以矿石材料装入高炉中，或者作为焦炭层加入高炉中，并将通过混合被加入到高炉中的焦炭的一部分与矿石材料混合而形成的焦炭和矿石材料的混合层。 通过适当地控制加入高炉的焦炭层的一次充电到达炉的腹部的高炉腹部的焦炭层的最小层厚度的比例和算术平均粒径，以及 通过将炉腹部的焦炭层的平均层厚度控制为不大于190mm，由于矿石层变薄，能够同时实现稳定的高炉操作和提高的还原效率。

公开(公告)号：WO2015151521A8

公开(公告)日：2016-07-07

申请号：PCT/JP2015001870

申请日：2015-03-31

申请人： JFE STEEL CORP

发明人： ICHIMIYA KATSUYUKI ,  YUGA MASAO ,  HASE KAZUKUNI ,  ENDO SHIGERU

IPC分类号： C22C38/00 ,  B23K9/23 ,  B23K35/30 ,  C22C38/14 ,  C22C38/58

CPC分类号： B23K35/3073 ,  B23K9/18 ,  B23K9/23 ,  B23K35/30 ,  B23K2203/04 ,  C22C38/00 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/06 ,  C22C38/14 ,  C22C38/42 ,  C22C38/44 ,  C22C38/46 ,  C22C38/48 ,  C22C38/50 ,  C22C38/54 ,  C22C38/58 ,  F16B5/08

摘要： Provided is a weld joint with superior CTOD characteristics produced via: a steel plate, as a base, containing 0.03 - 0.09% C, 0.01 - 0.35% Si, 1.3 - 2.0% Mn, 0.012% or less P, 0.0035% or less S, 0.01 - 0.06% Al, less than 0.3% Ni, less than 0.10% Mo, 0.005 - 0.023% Nb, 0.005 - 0.025% Ti, less than 0.0003% B, 0.002 - 0.005% N, 0.0005- 0.0050% Ca, and 0.0030% or less O, wherein the components satisfy a prescribed relationship; and a weld metal containing 0.040 - 0.090% C, 0.1 - 0.8% Si, 1.0 - 2.5% Mn, 0.020% or less Al, 0.1 - 1.0% Ni, 0.05 - 0.50% Mo, 0.005 - 0.050% Ti, 0.0015% or less B, and the balance iron and inevitable impurities.

摘要翻译： 提供了通过以下方式制造的CTOD特性优异的焊接接头：作为基材的钢板，含有0.03〜0.09％的C，0.01〜0.35％的Si，1.3〜2.0％的Mn，0.012％以下的P，0.0035％以下的S ，0.01〜0.06％的Al，小于0.3％的Ni，小于0.10％的Mo，0.005〜0.023％的Nb，0.005〜0.025％的Ti，小于0.0003％的B，0.002〜0.005％的N，0.0005〜0.0050％的Ca，以及 0.0030％以下的O，其中所述成分满足规定的关系; 含有0.040〜0.090％的C，0.1〜0.8％的Si，1.0〜2.5％的Mn，0.020％以下的Al，0.1〜1.0％的Ni，0.05〜0.50％的Mo，0.005〜0.050％的Ti，0.0015％或 少B，余铁和不可避免的杂质。

公开(公告)号：WO2015045299A8

公开(公告)日：2016-03-24

申请号：PCT/JP2014004657

申请日：2014-09-10

申请人： JFE STEEL CORP

发明人： MATSUSHITA MUNEO ,  TANIGUCHI KOICHI ,  IKEDA RINSEI

IPC分类号： B23K20/12

CPC分类号： B23K20/1235 ,  B23K20/129

摘要： The purpose of the present invention is to advantageously address reverse flow failures due to insufficient heating of materials to be processed when carrying out friction stir welding of structural steel, to give sufficient strength, and also to improve connection construction. In the present invention, a preheating treatment process is carried out during friction stir welding of structural steel, said preheating treatment process being a process wherein a steel sheet (3), which is the material to be processed, is heated by a heating means (5) provided forward of a rotary tool (1) that moves in a joining direction. The present invention is configured so that the surface temperature, surface area, position, and the like for the heating region in the preheating treatment process are strictly controlled.

摘要翻译： 本发明的目的是为了有效地解决由于在进行结构钢的摩擦搅拌焊接时提供待处理材料的不充分加热而产生的逆流故障，以提供足够的强度，以及改进连接结构。 在本发明中，在结构钢的摩擦搅拌焊接中进行预热处理工序，所述预热处理工序是将被加工材料的钢板（3）加热的方法（ 5）设置在沿连接方向移动的旋转工具（1）的前方。 本发明被配置为严格控制预热处理过程中的加热区域的表面温度，表面积，位置等。

公开(公告)号：WO2015045397A8

公开(公告)日：2016-03-17

申请号：PCT/JP2014004921

申请日：2014-09-25

申请人： JFE STEEL CORP

发明人： TAKENAKA MASANORI ,  IMAMURA TAKESHI ,  HAYAKAWA YASUYUKI ,  SHINGAKI YUKIHIRO

IPC分类号： C21D8/12 ,  C22C38/00 ,  C22C38/02 ,  C22C38/60 ,  H01F1/16

CPC分类号： H01F1/16 ,  C21D1/34 ,  C21D6/004 ,  C21D6/005 ,  C21D6/008 ,  C21D8/0205 ,  C21D8/0226 ,  C21D8/0236 ,  C21D8/0263 ,  C21D8/0273 ,  C21D8/1222 ,  C21D8/1233 ,  C21D8/1261 ,  C21D8/1272 ,  C21D9/46 ,  C21D2201/05 ,  C22C38/00 ,  C22C38/001 ,  C22C38/002 ,  C22C38/004 ,  C22C38/008 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/08 ,  C22C38/12 ,  C22C38/14 ,  C22C38/16 ,  C22C38/34 ,  C22C38/44 ,  C22C38/46 ,  C22C38/60 ,  C23C8/26

摘要： A method of producing a grain oriented electrical steel sheet, said method comprising a series of steps including heating a steel slab that contains, in terms of mass%, 0.0005-0.005% of C, 2.0-4.5% of Si, 0.005-0.3% of Mn, not more than 0.05% of S and/or Se (total), 0.010-0.04% of sol. Al, not more than 0.005% of N and the balance Fe with inevitable impurities, hot-rolling the steel slab, annealing the hot-rolled sheet if required, cold-rolling the sheet either once or twice or more including intermediate annealing to give a final sheet thickness, and then subjecting the sheet to primary recrystallization annealing and secondary recrystallization annealing, wherein the aging index (AI) of the steel sheet before the final cold-rolling is controlled to 70 MPa or lower so as to allow Goss oriented grains to effectively grow without restriction of use of a relatively large amount of C. Thus, a grain oriented electrical steel sheet having good magnetic characteristics can be obtained.

摘要翻译： 一种晶粒取向电工钢板的制造方法，其特征在于，包括以下步骤：加热钢坯，以质量％计，C：0.0005〜0.005％，Si：2.0〜4.5％，Si：0.005〜0.3％ 的Mn，不大于S和/或Se（总计）的0.05％，溶胶的0.010-0.04％。 Al，不大于0.005％的N，余量为Fe与不可避免的杂质，热轧钢坯，如果需要，对该热轧板进行退火，将片材冷轧1次或2次以上，包括中间退火，得到 最终板厚，然后对该板进行一次再结晶退火和二次再结晶退火，其中将最终冷轧前的钢板的老化指数（AI）控制在70MPa以下，以使高斯取向晶粒 有效地生长而不限制使用相对大量的C.因此，可以获得具有良好磁特性的晶粒取向电工钢板。

公开(公告)号：WO2015008406A8

公开(公告)日：2015-11-12

申请号：PCT/JP2014000342

申请日：2014-01-23

申请人： JFE STEEL CORP

发明人： NUSHIRO KOUICHI ,  MAETANI TOSHIO ,  ONO TOMOSHIGE ,  OZAKI YUKIKO

IPC分类号： B22F1/00

CPC分类号： B22F1/007 ,  B22F1/0059 ,  B22F3/004 ,  B22F3/16 ,  B22F9/04 ,  C22C33/02

摘要： According to the present invention, a machining-improving powder is a crystalline layered alkali silicate heat-treated at a temperature range of 400-1100°C, and the mixture constituting the machining-improving powder is set such that an iron-based powder takes up 0.01-1.0 mass% in relation to the total amount of alloy powder and machining-improving powder. As a result, not only can sintering of a compact be performed in a sintering furnace without having any negative effects on the environment inside the furnace, but it is also possible to attain a mixed powder for powder metallurgy by which it is possible to obtain a sintered body having both exceptional lathing properties and exceptional drilling properties.

摘要翻译： 根据本发明，加工改善粉末是在400-1100℃的温度范围内热处理的结晶层状碱性硅酸盐，构成加工改性粉末的混合物的设定使得铁基粉末 相对于合金粉末和机械改进粉末的总量相对于0.01-1.0质量％。 结果，不仅可以在烧结炉中进行烧结而不会对炉内的环境产生任何负面影响，而且可以获得粉末冶金用混合粉末，通过该粉末冶金可以获得 具有特殊的车床特性和卓越的钻孔性能的烧结体。

公开(公告)号：WO2014088111A8

公开(公告)日：2015-06-18

申请号：PCT/JP2013082899

申请日：2013-12-03

申请人： JFE STEEL CORP

发明人： KATAOKA TOKIHIKO ,  SUMI HIROYUKI ,  KITANI YASUSHI ,  OI KENJI ,  YASUDA KOICHI

IPC分类号： B23K9/173 ,  B23K9/16 ,  B23K35/30

CPC分类号： B23K9/173 ,  B23K9/0213 ,  B23K9/16 ,  B23K35/30 ,  B23K35/3053 ,  B23K35/383 ,  B23K2201/006

摘要： In this welded joint obtained by means of a multilayer buildup of narrow-groove gas-shielded arc welds at thick steel members having a plate thickness of at least 22 mm, the weld depth at the bottom of the thick steel members is at least 1.5 mm, and furthermore the total amount of oxygen (O) and sulfur (S) contained in the welded metal is caused to be in the range of 400-1000 mass ppm inclusive.

摘要翻译： 在通过在具有至少22mm的板厚度的厚钢构件上的窄槽气体保护电弧焊的多层堆积获得的焊接接头中，厚钢构件底部的焊接深度至少为1.5mm ，并且焊接金属中含有的氧（O）和硫（S）的总量也在400-1000质量ppm的范围内。

公开(公告)号：WO2014061246A8

公开(公告)日：2015-02-26

申请号：PCT/JP2013006076

申请日：2013-10-11

申请人： JFE STEEL CORP

发明人： TODA HIROAKI ,  ZAIZEN YOSHIAKI ,  NAKANISHI TADASHI ,  ODA YOSHIHIKO

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

CPC分类号： H01F1/14775 ,  B21B1/026 ,  B21B15/00 ,  C21D8/12 ,  C21D8/1222 ,  C21D8/1261 ,  C21D8/1277 ,  C22C38/001 ,  C22C38/002 ,  C22C38/004 ,  C22C38/008 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/12 ,  C22C38/34 ,  C22C38/60 ,  H01F1/16 ,  H01F41/02 ,  Y02P10/212

摘要： According to the present invention, the pickling weight loss of a hot-rolled steel sheet having a prescribed composition is adjusted to 40 to 100g/m2 as determined after subjecting the hot-rolled steel sheet to annealing at 1000ºC for 30sec in a nitrogen atmosphere and then immersion in a 7% HCl solution at 80ºC for 60sec. Thus, a hot-rolled steel sheet which is for use in producing a non-oriented electrical steel sheet and which exhibits not only excellent magnetic characteristics such as iron loss and magnetic flux density but also excellent recyclability and sheet surface appearance can be obtained.

摘要翻译： 根据本发明，将经热轧钢板在氮气气氛中在1000℃退火30秒后测定的具有规定组成的热轧钢板的酸洗重量损失为40〜100g / m 2， 然后在80℃下浸入7％HCl溶液中60秒。 因此，可以获得用于制造无取向电工钢板的热轧钢板，并且不仅具有优异的磁特性如铁损和磁通密度，而且具有优异的可回收性和表面外观。