专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JP2014128822A Method for manufacturing high nitrogen steel 有权
标题翻译：制造高氮钢的方法
公开(公告)号：JP2014128822A
公开(公告)日：2014-07-10
申请号：JP2012287831
申请日：2012-12-28
申请人： Kobe Steel Ltd , 株式会社神戸製鋼所
发明人： KAMIYAMA TAIICHI , FUKUDA HIRONARI , NAGAO MOTOHIRO , ARAI HIROTADA , DEURA TETSUSHI , ISHIDA HITOSHI
IPC分类号： B22D18/06 , B22D7/00
摘要： PROBLEM TO BE SOLVED: To provide a method for manufacturing an ingot containing nitrogen of 0.02 mass% or more under a reduced pressure atmosphere.SOLUTION: A high nitrogen steel manufacturing method of the present invention is provided for manufacturing an ingot containing nitrogen N of 0.02 mass% or more by injecting a molten steel into a casting mold under a reduced pressure atmosphere. In the method, a vacuum casting is performed such that a degree of vacuum A (torr) in casting, a casting time t (min), a nitrogen concentration [N](mass%) in the molten steel before injecting the molten steel into the casting mold, and a target nitrogen concentration [N](mass%) at the completion of casting satisfy A≥(a×[N]-b×[N]), where (a) is -0.062t+3.437t+300.820 and b is -0.0655t+3.7216t+58.528.
摘要翻译：要解决的问题：提供一种在减压气氛下制造含有0.02质量％以上的氮的锭的方法。解决方案：提供本发明的高氮钢制造方法，用于制造含氮量为0.02的锭通过在减压气氛下将钢水注射到铸模中，质量％以上。在该方法中，进行真空铸造，使得在将钢水注入钢水之前的铸造中的真空度A（torr），铸造时间t（min），氮浓度[N]（质量％））铸造完成时的目标氮浓度[N]（质量％）满足A≥（a×[N] -b×[N]），其中（a）为-0.062t + 3.437t + 300.820，b为-0.0655t + 3.7216t + 58.528。

2. 发明专利

JP2012092422A Thick steel plate excellent in toughness of weld heat-affected zone 有权
标题翻译：厚钢板优良的焊接热影响区域
公开(公告)号：JP2012092422A
公开(公告)日：2012-05-17
申请号：JP2011044075
申请日：2011-03-01
申请人： Kobe Steel Ltd , 株式会社神戸製鋼所
发明人： IBANO AKIRA , HATANO HITOSHI , NAKO HIDENORI , SHIMAMOTO MASAKI , DEURA TETSUSHI , SUGITANI TAKASHI , OKAZAKI YOSHIOMI
IPC分类号： C22C38/00 , C21C7/04 , C22C38/14 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide a thick steel plate excellent in toughness of a weld heat-affected zone in which HAZ toughness is excellent when giving high heat input welding, a low yield ratio can be realized, and further, which can also assure favorable base material toughness.SOLUTION: The thick steel plate satisfies a predetermined chemical composition, includes an oxide which satisfies that in a constituent element except oxygen Ti>10%, Al
摘要翻译：要解决的问题：为了提供在给予高热输入焊接时HAZ韧性优异的焊接热影响区域的韧性优异的厚钢板，可以实现低屈服比，并且还可以也保证了良好的基材韧性。解决方案：厚钢板满足预定的化学组成，包括除氧Ti> 10％以外的构成元素中的氧化物，Al <20％，5％ 6 件/ mm 2个具有至多100nm的等价圆直径的含氮氮化物的2 。版权所有（C）2012，JPO＆INPIT

3. 发明专利

JP2011117057A Thick steel plate having superior toughness at weld heat-affected zone and superior uniformity of strength 有权
标题翻译：在焊接热影响区域具有超级韧性的厚钢板和超强度的强度均匀性
公开(公告)号：JP2011117057A
公开(公告)日：2011-06-16
申请号：JP2009277694
申请日：2009-12-07
申请人： Kobe Steel Ltd , 株式会社神戸製鋼所
发明人： NAKO HIDENORI , OKAZAKI YOSHIOMI , DEURA TETSUSHI , SUGITANI TAKASHI
IPC分类号： C22C38/00 , C21C7/04 , C21D8/02 , C22C38/14 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide a thick steel plate which can enhance not only an average value of toughness in HAZ but also the minimum value even when high-heat input welding has been conducted and also has a superior uniformity of strength properties in the sheet thickness direction.
SOLUTION: This thick steel plate satisfies a predetermined chemical component composition and includes oxides in which constituent elements except oxygen are, by mass%, 10% 2 or more, and the oxides which have circle-equivalent diameters of 2 μm or more are 100 pieces/mm
2 or less. When hardness in a t/4 position is defined as Hvq and hardness in a t/2 position is defined as Hvh, a value H determined by expression of (Hvq-Hvh)/Hvq is 0.07 or less.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种厚钢板，即使在进行高热输入焊接时也不仅能够增强HAZ的韧性的平均值，而且还能够提高最小值，并且还具有优异的强度特性均匀性在片材厚度方向上。
解决方案：该厚钢板满足预定的化学成分组成，其中除氧之外的构成元素为10％ 2 以下。当t / 4位置的硬度被定义为Hvq，t / 2位置的硬度定义为Hvh时，由（Hvq-Hvh）/ Hvq的表达式确定的值H为0.07以下。版权所有（C）2011，JPO＆INPIT

4. 发明专利

JP2010209433A Steel material superior in toughness of weld heat-affected zone and fatigue characteristics of base metal, and method for manufacturing the same 有权
标题翻译：焊接热影响区域的钢质材料及其基体的疲劳特性及其制造方法
公开(公告)号：JP2010209433A
公开(公告)日：2010-09-24
申请号：JP2009058630
申请日：2009-03-11
申请人： Kobe Steel Ltd , 株式会社神戸製鋼所
发明人： KANEKO MASAHITO , DEURA TETSUSHI , SUGIMURA TOMOKO
IPC分类号： C22C38/00 , B21B3/00 , C21C7/04 , C21C7/06 , C21D8/02 , C22C38/14 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide a steel material which shows superior HAZ toughness even when having been welded at such a high heat input as an amount of 50 kJ/mm or more, and besides, has improved fatigue characteristics of a base metal itself. SOLUTION: The steel material has following characteristics of: (a) including an oxide containing Zr, a REM and Ca; (b) having the composition satisfying 5-50% ZrO 2 , 10-50% oxide of a REM and 5.0-50% CaO, when the compositions of all oxides have been measured and converted into the composition of single oxide; (c) containing 120 pieces per 1 mm 2 or more of oxides with circle equivalent diameters of 0.1-2.0 μm, and 5 pieces per 1 mm 2 or less of oxides with circle equivalent diameters of more than 5.0 μm; (d) having a metal structure in which an average circle equivalent diameter D of crystal grains that are surrounded by a large-angle grain boundary having a crystal orientation difference of 15 degrees or more is 25 μm or less, and a ratio R of random grain boundaries occupying in the large-angle grain boundaries is 70 area% or less, when observed with an EBSP method; and (e) having an average hardness of 170 Hv or more. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：解决的问题：为了提供即使在以50kJ / mm以上的量的高热输入下进行焊接也显示出优异的HAZ韧性的钢材，此外，具有改善的基体的疲劳特性金属本身钢材具有以下特征：（a）包括含有Zr，REM和Ca的氧化物; （b）当所有氧化物的组成被测量并转化为组合物时，具有满足5-50％ZrO 2 SBR，10-50％REM的氧化物和5.0-50％的CaO的组成的单一氧化物; （c）每1毫米 2 或更多的圆当量直径为0.1-2.0微米的氧化物和每1毫米SP 2以下的氧化物含有120个氧化物，圆当量直径大于5.0μm; （d）具有由结晶取向差为15度以上的大角度晶界包围的晶粒的平均圆当量直径D为25μm以下的金属结构，以及随机的当用EBSP法观察时，占据大角度晶界的晶界为70面积％以下; 和（e）具有170Hv或更高的平均硬度。版权所有（C）2010，JPO＆INPIT

5. 发明专利

JP2009084656A High-tensile-strength thick steel plate to be welded having superior toughness of base metal 有权
标题翻译：要焊接的高强度厚钢板具有基体金属的超级韧性
公开(公告)号：JP2009084656A
公开(公告)日：2009-04-23
申请号：JP2007258326
申请日：2007-10-02
申请人： Kobe Steel Ltd , 株式会社神戸製鋼所
发明人： NAKO HIDENORI , OKAZAKI YOSHIOMI , OTA HIROMI , DEURA TETSUSHI , SUGIMURA TOMOKO
IPC分类号： C22C38/00 , C21D8/02 , C22C38/14 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide a high-tensile-strength thick steel plate to be welded having a superior toughness of a base metal.
SOLUTION: This high-tensile-strength thick steel plate has a chemical composition comprising, by mass%, 0.02 to 0.12% C, 0 to 0.25% Si, 1.0 to 2.0% Mn, 0 to 0.03% P, 0 to 0.02% S, 0 to 0.050% Al, 0.005 to 0.100% Ti, 0.0001 to 0.0500% REM, 0.0001 to 0.0500% Zr, 0.0005 to 0.0100% Ca, 0.0040 to 0.0300% N, 0.0005 to 0.0100% O and the balance Fe with unavoidable impurities. A ratio of oxides of REM
2 O
3 , ZrO
2 , CaO and MnO calculated based on the concentrations of elements such as REM, Zr, Ca and Mn which form the oxides in the steel is 10 to 50% for REM
2 O
3 , 5 to 50% for ZrO
2 , 5 to 50% for CaO, and 1 to 20% for MnO. When a cross section of the steel material is observed, the steel plate includes Ti-containing nitrides with circle equivalent diameters of less than 0.10 μm in an amount of 5.0×10
6 pieces/mm
2 or more, Ti-containing nitrides with circle equivalent diameters of 0.10 to 1.0 μm in an amount of 1.0×10
4 pieces/mm
2 or less, and Ti-containing nitrides with circle equivalent diameters of more than 1.0 μm in an amount of 5 pieces/mm
2 or less. The area rate of MA to be observed in the cross section of the steel material is 5.0% or less.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供具有优异的贱金属韧性的待焊接的高强度高强度钢板。解决方案：该高拉伸强度的厚钢板具有以质量％计含有0.02〜0.12％的C，0〜0.25％的Si，1.0〜2.0％的Mn，0〜0.03％的P，0〜 0.02％S，0〜0.050％的Al，0.005〜0.100％的Ti，0.0001〜0.0500％的REM，0.0001〜0.0500％的Zr，0.0005〜0.0100％的Ca，0.0040〜0.0300％的N，0.0005〜0.0100％的O，不可避免的杂质。基于REM，Zr等元素的浓度计算的REM 2 3 ，ZrO 2 SB 3，CaO和MnO的氧化物比例，在钢中形成氧化物的Ca和Mn为REM 2 3 为10〜50％，ZrO 2 SBB为5〜50％ CaO为5〜50％，MnO为1〜20％。当观察到钢材的横截面时，钢板包括5.0×10 -6个/ mm 2的圆当量直径小于0.10μm的含钛氮化物以上，含有1.0×10 4 / SP以上的圆当量直径为0.10〜1.0μm的含钛氮化物或更小，以及具有5个/ mm 2以上的圆当量直径大于1.0μm的含钛氮化物以下。在钢材的截面中观察到的MA的面积率为5.0％以下。版权所有（C）2009，JPO＆INPIT

6. 发明专利

JP2008291347A Steel material with excellent toughness in weld heat-affected zone, and its manufacturing method 有权
标题翻译：焊接热影响区具有优异韧性的钢材及其制造方法
公开(公告)号：JP2008291347A
公开(公告)日：2008-12-04
申请号：JP2008044870
申请日：2008-02-26
申请人： Kobe Steel Ltd , 株式会社神戸製鋼所
发明人： DEURA TETSUSHI , SUGIMURA TOMOKO , OKAZAKI YOSHIOMI , NAKO HIDENORI , OTA HIROMI , SUITO HIDEAKI , INOUE AKIRA
IPC分类号： C22C38/00 , C21C7/04 , C21C7/06 , C22C38/14 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide a steel material in which toughness in HAZ (weld heat-affected zone) is improved and variations in the HAZ toughness are reduced and also to provide its manufacturing method.
SOLUTION: With respect to a steel material which has a composition containing 0.01 to 0.2% C, ≤0.5% (not including 0%) Si, ≤2.5% (not including 0%) Mn, ≤0.03% (not including 0%) Ti and ≤0.01% (not including 0%) N, also containing ≤0.02% (not including 0%) P, ≤0.015% (not including 0%) S and ≤0.01% (including 0%) Al, further containing 0.0010 to 0.1% REM and 0.001 to 0.05% Zr and having the balance iron with inevitable impurities, the above REM and Zr are regulated in such a way that they are contained in inclusions and solid-solution REM and solid-solution Zr become ≤0.0010% (including 0%) and ≤0.0010% (including 0%), respectively.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供HAZ（焊接热影响区）的韧性提高，HAZ韧性的变化降低的钢材，也可以提供其制造方法。＆lt; P＆gt;解决方案：对于含有0.01至0.2％C，≤0.5％（不包括0％）Si，≤2.5％（不包括0％）Mn，≤0.03％（不包括 0％）Ti和≤0.01％（不含0％）N，还含有≤0.02％（不包括0％）P，≤0.015％（不包括0％）S和≤0.01％（包括0％）Al，进一步含有0.0010〜0.1％的REM和0.001〜0.05％的Zr，余量为铁与不可避免的杂质，上述REM和Zr的调节方式使其含有夹杂物，固溶体REM和固溶体Zr成为 ≤0.0010％（含0％），≤0.0010％（含0％）。版权所有（C）2009，JPO＆INPIT

7. 发明专利

JP2008223062A Thick steel plate excellent in toughness of basic material and weld heat-affected zone 有权
标题翻译：基体材料和焊接热影响区厚钢板厚板
公开(公告)号：JP2008223062A
公开(公告)日：2008-09-25
申请号：JP2007060781
申请日：2007-03-09
申请人： Kobe Steel Ltd , 株式会社神戸製鋼所
发明人： OKAZAKI YOSHIOMI , NAKO HIDENORI , DEURA TETSUSHI , SUGIMURA TOMOKO
IPC分类号： C22C38/00 , C21D8/02 , C22C38/14 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide a thick steel plate excellent in HAZ toughness and also in the toughness of a basic material itself even when subjected to large heat input-welding. SOLUTION: The thick steel plate satisfies a prescribed chemical component composition and also satisfies the relationship of expression, [Ti]×16[Si]×(12-40[C]) 2 and contains oxides containing REM and/or CA and Ti and Zr having a 0.2-5 μm diameter equivalent to the circle in an amount of ≥500 pieces/mm 2 . Wherein, [Ti], [Si] and [C] respectively represent contents (mass%) of Ti, Si and C. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：即使在经受大的热输入焊接的情况下，也能提供HAZ韧性优异的基材本身的韧性优异的厚钢板。解决方案：厚钢板满足规定的化学成分组成，并且还满足表达式[Ti]×16 [Si]×（12-40 [℃]）<0.38（％）的关系，其含有含Ti 氮化物的直径相当于圆圈的直径≤0.05μm，数量为≥5.0×166个/ mm 2 / SP，并含有含有REM和/或CA的氧化物，以及具有0.2-5μm直径的Ti和Zr 相当于圈数≥500件/ mm 2 。其中[Ti]，[Si]和[C]分别表示Ti，Si和C的含量（质量％）。（C）2008，JPO＆INPIT

8. 发明专利

JP2008088485A Steel material excellent in toughness and fatigue crack progress resistance of welding heat-affected zone, and producing method therefor 有权
标题翻译：焊接热影响区的韧性和疲劳裂纹耐腐蚀性优良的钢材及其制造方法
公开(公告)号：JP2008088485A
公开(公告)日：2008-04-17
申请号：JP2006269023
申请日：2006-09-29
申请人： Kobe Steel Ltd , 株式会社神戸製鋼所
发明人： OGAKI SEIICHI , DEURA TETSUSHI
IPC分类号： C22C38/00 , B22D1/00 , B22D11/00 , B22D11/108 , C21C7/04 , C21D8/02 , C22C38/38 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide a steel material having excellent HAZ toughness and improving fatigue crack progress resistance by restraining the fatigue crack progress speed under repeated stress.
SOLUTION: The steel material comprises 0.03-0.18% C, ≤0.5% Si, 0.9-2.0% Mn, 0.003-0.01 N, and satisfying ≤0.02% P, ≤0.015% S, ≤0.01% Al, and containing 0.001-0.1% REM and/or 0.0003-0.02% Ca and 0.001-0.05% Zn, and the balance Fe with inevitable impurities, wherein; REM and/or Ca and Zn are contained as a single oxide or a compound oxide and also, a composite structure composed of a soft phase and a hard phase, is contained in this steel material, and a ratio (Hv
1 /Hv
2 ) of Vickers hardness Hv
1 of the hard phase and Vickers hardness Hv
2 of the soft phase, is 1.5-5.0, and the grain diameter of the soft phase is ≤20 μm diameter equivalent to the circle.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：通过抑制重复应力下的疲劳裂纹进行速度，提供具有优异的HAZ韧性并提高疲劳裂纹进行阻力的钢材。
解决方案：钢材含有0.03-0.18％C，≤0.5％Si，0.9-2.0％Mn，0.003-0.01N，满足≤0.02％P，≤0.015％S，≤0.01％Al，含 0.001-0.1％REM和/或0.0003-0.02％Ca和0.001-0.05％Zn，余量为Fe与不可避免的杂质，其中; 在该钢材中含有REM和/或Ca和Zn作为单一氧化物或复合氧化物，并且还包含由软质相和硬相组成的复合结构，并且比率（Hv 1 < /软硬相的维氏硬度Hv 1 ，软相的维氏硬度Hv 2 为1.5〜 5.0，软相的粒径相当于圆的直径≤20μm。版权所有（C）2008，JPO＆INPIT

9. 发明专利

JP2007247004A Low yield ratio high tensile steel having excellent toughness of weld heat-affected zone and manufacturing method therefor 有权
标题翻译：焊接热影响区具有优异韧性的低屈服强度高钢及其制造方法
公开(公告)号：JP2007247004A
公开(公告)日：2007-09-27
申请号：JP2006073303
申请日：2006-03-16
申请人： Kobe Steel Ltd , 株式会社神戸製鋼所
发明人： IMAMURA HIROKI , DEURA TETSUSHI
IPC分类号： C22C38/00 , C21C7/04 , C21C7/06 , C21D8/02 , C22C38/28 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide a low yield ratio high tensile steel having excellent toughness of a weld heat-affected zone.
SOLUTION: The low yield ratio high tensile steel having the excellent toughness of the weld heat-affected zone contains 0.03 to 0.2% C, ≤0.5% (not inclusive of 0%) Si, 1.0 to 2.0% Mn, and ≤0.01% (not inclusive of 0%) N, satisfies ≤0.02% (not inclusive of 0%) P, ≤0.015% (not inclusive of 0%) S, and ≤0.01% (not inclusive of 0%) Al, and contains 0.001 to 0.1% REM and/or 0.0003 to 0.005% Ca, and 0.001 to 0.05% Zr, and the balance iron and inevitable impurities, wherein when the composition of the entire oxide included in the steel is measured, the steel contains the oxide of the REM and/or CaO and ZrO
2 and the ferrite fraction occupying in the entire structure is 4 to 24% and the balance bainite structure and/or martensite structure.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供具有优异的焊接热影响区的韧性的低屈服比的高张力钢。解决方案：焊接热影响区具有优异韧性的低屈服比高张力钢包含0.03-0.2％C，≤0.5％（不包括0％）Si，1.0-2.0％Mn和≤ 0.01％（不包括0％）N满足≤0.02％（不包括0％）P，≤0.015％（不包括0％）S，≤0.01％（不包括0％）Al，和含有0.001〜0.1％的REM和/或0.0003〜0.005％的Ca和0.001〜0.05％的Zr，余量为铁和不可避免的杂质，其中，当测量钢中包含的全部氧化物的组成时，钢含有氧化物的REM和/或CaO和ZrO 2 ，占整个结构的铁素体部分为4〜24％，平衡贝氏体组织和/或马氏体组织。版权所有（C）2007，JPO＆INPIT

10. 发明专利

JP2004176077A Method for producing fe-ni base alloy 审中-公开
公开(公告)号：JP2004176077A
公开(公告)日：2004-06-24
申请号：JP2002339904
申请日：2002-11-22
申请人： Kobe Steel Ltd , 株式会社神戸製鋼所
发明人： IWANAGA KOJI , DEURA TETSUSHI , SAKAMOTO KOICHI
IPC分类号： C22B9/04 , C21C7/04 , C21C7/06 , C21C7/10 , C22B9/05 , C22C19/05 , C22C38/00 , C22C38/08 , C22C38/52 , H01J9/14 , H01J29/07
摘要： PROBLEM TO BE SOLVED: To establish a method for producing Fe-Ni base alloy excellent in a surface flaw resistance and a fine etching property at a low cost by reducing the generation of harmful inclusion as less as possible without performing a remelting method after deoxidize-refining.
SOLUTION: When the Fe-Ni base alloy containing 28-50mass% Ni is smelted, after oxygen-blowing to this molten alloy, the deoxidization treatment is performed under vacuum condition by using Si-base deoxidizer, and free-oxygen concentration ([O]
f ) is controlled to 25-40ppm.
COPYRIGHT: (C)2004,JPO

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式