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

BRPI1106802A2 未知
公开(公告)号：BRPI1106802A2
公开(公告)日：2013-01-22
申请号：BRPI1106802
申请日：2011-09-28
申请人： NIPPON STEEL CORP
发明人： HARA TAKUYA , WATANABE DAISUKE , DOI NAOKI , SAITO TOSHIAKI
IPC分类号： C21D8/02 , C22C38/00 , C22C38/14

2. 发明专利

JP2012026011A Method for determining furnace temperature of continuous heat treating furnace 有权
标题翻译：连续热处理炉温度测定方法
公开(公告)号：JP2012026011A
公开(公告)日：2012-02-09
申请号：JP2010167232
申请日：2010-07-26
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： USUKINE HIROKAZU , WATANABE DAISUKE , SAITO TOSHIAKI
IPC分类号： C21D1/18 , C21D11/00
摘要： PROBLEM TO BE SOLVED: To determine furnace temperature that can reduce the variation in strength occurred in a steel plate and can increase the productivity of a heat treating furnace, in the heat treatment of a steel plate in which the steel plate is continuously drawn at a temperature lower than a preset furnace temperature.SOLUTION: The method for determining the furnace temperature of the heat treating furnace in which a steel plate is continuously heat-treated includes the steps of: (i-1) determining the range of the heat treatment temperature which falls within the range of the variation in strength acceptable to the steel plate (the temperature difference which is acceptable in the heat treatment operation); (i-2) determining the maximum value of preset furnace temperature in which the temperature difference actually produced in the steel plate does not exceed the range of the heat treatment temperature; (ii-1) determining the maximum in-furnace time in which the steel plate can stay in the heat treating furnace from a target heat treatment capability; (ii-2) determining the minimum value of the preset furnace temperature which is set to a target drawing temperature of the steel plate from the determined maximum in-furnace time; and (iii) determining the furnace temperature of the heat treating furnace between the maximum value and the minimum value of the determined preset furnace temperature, from the viewpoint of reduction of the variation in strength occurred in the steel plate and improvement in the productivity of the heat treating furnace.
摘要翻译：要解决的问题：为了确定可以减少钢板中发生的强度变化的炉温，并且可以提高热处理炉的生产率，在钢板连续地进行的钢板的热处理中在低于预设炉温的温度下拉伸。解决方案：用于确定其中钢板被连续热处理的热处理炉的炉温的方法包括以下步骤：（i-1）确定处于该范围内的热处理温度的范围的钢板可接受的强度变化（热处理操作中可接受的温差）; （i-2）确定在钢板中实际产生的温差不超过热处理温度的预设炉温的最大值; （ii-1）从目标热处理能力确定钢板能够停留在热处理炉中的最大炉内时间; （ii-2）从确定的最大炉内时间确定设定为钢板的目标拉拔温度的预设炉温的最小值; 和（iii）从确定的预定炉温的最大值和最小值之间确定热处理炉的炉温，从减少钢板中发生的强度变化的观点出发，提高生产率热处理炉。版权所有（C）2012，JPO＆INPIT

3. 发明专利

JPH11291084A FLUX-CORED WIRE FOR WELDING HIGH-STRENGTH AND HIGH-TOUGHNESS STEEL 失效
公开(公告)号：JPH11291084A
公开(公告)日：1999-10-26
申请号：JP11138298
申请日：1998-04-08
申请人： NIPPON STEEL CORP
发明人： NAGASAKI HAJIME , MIYAKE SATOYUKI , KANEDA SHINICHI , WATANABE DAISUKE
IPC分类号： B23K9/23 , B23K35/30 , B23K35/368
摘要： PROBLEM TO BE SOLVED: To provide a flux-cored wire for welding a high-strength and high- toughness stainless steel which is unnecessary for pre-heating or post-heating, excellent in cracking resistance, low-temperature cracking resistance, strength and toughness of a welded part, and excellent in corrosion resistance in an environment containing carbon dioxide in welding a high-Cr steel. SOLUTION: A flux-cored wire for welding stainless steel in which a flux is filled in an outer shell formed of stainless steel has a composition consisting of 0.02-0.10% C, 0.1-1.0% Si, 1.0-3.0% Mn, 11.5-16.5% Cr, 6.0-9.0% Ni, and 1.5-3.5% Mo by weight to the whole wire, and satisfies the inequalities (1) 1.3

4. 发明专利

JPH10291093A FLUX-CORED WIRE FOR WELDING STAINLESS STEEL 失效
公开(公告)号：JPH10291093A
公开(公告)日：1998-11-04
申请号：JP11423097
申请日：1997-04-17
申请人： NIPPON STEEL CORP
发明人： NAGASAKI HAJIME , MIYAKE SATOYUKI , KANEDA SHINICHI , WATANABE DAISUKE , ISHITSUBO KIKUO
IPC分类号： B23K9/23 , B21C1/00 , B21C1/22 , B23K35/368
摘要： PROBLEM TO BE SOLVED: To provide a flux-cored wire for welding stainless steel in which no defective welds such as slag inclusion caused by the non-melting of the filled flux are generated, the arc is excellent in stability, and the spatter is less generated in the gas-shielded metal arc welding of stainless steel. SOLUTION: The flux in which the slag material mainly consists of, by the weight % relative to the total weight of the wire, 1.5-3.5% SiO2 , 0.5-2.5% ZrO2 , and 0.5-2.5% TiO2 , the total of the slag composition in the flux is 6.5-9.5% relative to the total weight of the wire, and iron powder whose grain size is =40% is contained by >=35% of the total weight of the flux, is filled in the stainless steel skin by 18-25%, and after the filling the wire is drawn by >=65% in the area reduction ratio.

5. 发明专利

JP2007130667A Method for manufacturing thick steel plate with high flatness 有权
标题翻译：用于制造具有高平坦度的厚钢板的方法
公开(公告)号：JP2007130667A
公开(公告)日：2007-05-31
申请号：JP2005326708
申请日：2005-11-10
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： UENO HIRONORI , WATANABE DAISUKE
IPC分类号： B21B37/00 , B21B1/38
摘要： PROBLEM TO BE SOLVED: To provide a method for manufacturing a thick steel plate, which improves the final flatness of the thick steel plate after being rolled and cooled, by determining a target rolling shape in consideration of a temperature deviation in a width direction and by forming the shape close to the target shape as much as possible at an initial pass schedule. SOLUTION: The method is used to manufacture the thick steel plate with a high flatness. Target variations (ΔRc) of plate crown ratio are previously set for every expected widths of the thick steel plate to be manufactured. When manufacturing the thick steel plate, ΔRc is determined according to the expected width of a thick steel plate by the above setting, a pass schedule capable of obtaining the ΔRc is determined, and rolling is conducted following the pass schedule. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种制造厚钢板的方法，其通过考虑宽度的温度偏差来确定目标轧制形状来提高轧制和冷却后的厚钢板的最终平坦度并且通过在初始通过时间表尽可能多地形成接近目标形状的形状。
解决方案：该方法用于制造具有高平整度的厚钢板。对于要制造的厚钢板的每个预期宽度，预先设定板冠比的目标变化（ΔRc）。当制造厚钢板时，通过上述设置根据厚钢板的预期宽度确定ΔRc，确定能够获得ΔRc的通过程序，并按照通过程序进行滚动。版权所有（C）2007，JPO＆INPIT

6. 发明专利

JP2000343274A COATED ELECTRODE FOR HIGH CHROMIUM STEEL AND WELDING METHOD OF HIGH CHROMIUM STEEL 失效
公开(公告)号：JP2000343274A
公开(公告)日：2000-12-12
申请号：JP15829099
申请日：1999-06-04
申请人： NIPPON STEEL CORP
发明人： KANEDA SHINICHI , MIYAKE SATOYUKI , NAGASAKI HAJIME , WATANABE DAISUKE
IPC分类号： B23K9/23 , B23K35/30
摘要： PROBLEM TO BE SOLVED: To obtain a welding rod, with which the welded metal having excellent low temp. and high temp. crack resistance, high strength and high shock toughness without needing the preheating and the afterheating and good corrosion resistance even under atmosphere containing gaseous carbon dioxide, by containing specified ranges of C, Si, Mn, Cr, Ni, Mo and N contents in the welding rod composed of a welding rod core wire and a coated agent. SOLUTION: The welding rod composed of the welding rod core wire and the coated agent, is contained by wt.% to the whole welding rod, of 0.005-0.1 C, 0.3-1 Si, 0.25-3.5 Mn, 10-19 Cr, 3.5-8 Ni, 1-2.5 Mo and 0.001-0.2 N. Further, the contents of C, Si, Mn, Cr, Ni, Mo, N in the welding rod, are regulated so as to satisfy by wt.% to the whole welding rod, 14

7. 发明专利

JPH11114695A FLUX CORED WIRE FOR STAINLESS STEEL WELDING 失效
公开(公告)号：JPH11114695A
公开(公告)日：1999-04-27
申请号：JP29055597
申请日：1997-10-08
申请人： NIPPON STEEL CORP
发明人： NAGASAKI HAJIME , MIYAKE SATOYUKI , KANEDA SHINICHI , WATANABE DAISUKE
IPC分类号： B23K9/23 , B23K35/30 , B23K35/368
摘要： PROBLEM TO BE SOLVED: To provide a flux cored wire for stainless steel welding excellent in blow hole resistance without causing welding defects such as blow hole and pit, good in arc stability and reduced in spatter generation when executing the welding after long term storage and under high humidity environment in the gas shielded metal-arc welding of a stainless steel. SOLUTION: In this flux cored wire in which a flux 2 consisting of, interns of total weight, 1.5-3.5% SiO, 0.5-2.5% ZrO, 0.5-2.5% TiO as a principal component, 6.5-9.5% slag component is charged inside a stainless outer shell, the sum of Ca and Mg is defined as 0.005-0.050%, the sum of Na and K is defined as 0.005-0.050% and the value obtained by formula: (10×Ca+7×Mg+Na+2×K)/(total of slag component)×100 is defined as 2.0-7.5.

8. 发明专利

JP2012072423A Method of manufacturing high-strength steel plate for line pipe 有权
标题翻译：制造线管用高强度钢板的方法
公开(公告)号：JP2012072423A
公开(公告)日：2012-04-12
申请号：JP2010216822
申请日：2010-09-28
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： HARA TAKUYA , SAITO TOSHIAKI , WATANABE DAISUKE , DOI NAOKI
IPC分类号： C21D8/02 , C22C38/00 , C22C38/14 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide a method of manufacturing a high-strength steel plate for line pipes, which is excellent in productivity.SOLUTION: The method of manufacturing a high-strength steel plate for line pipes comprises a step of making a steel plate with X60 or more by rolling and cooling a billet including, by mass, C: 0.02-0.10%, Si: 0.01-0.50%, Mn: 1.5-2.5%, P: ≤0.01%, S: ≤0.0030%, Nb: 0.0001-0.2%, Al: 0.0005-0.03%, Ti: 0.003-0.030%, and the remainder consisting of iron and unavoidable impurities; and a heat treatment step of heat-treating the steel plate. In the heat treatment step, after the steel plate is heated to a target temperature of 200-520°C at a temperature rise rate of 0.1-1.5°C/sec, the cooling of the steel plate is successively started, and the steel plate is cooled to 200°C or lower.
摘要翻译：要解决的问题：提供一种生产线性优良的线管用高强度钢板的制造方法。解决方案：制造线管用高强度钢板的方法包括以下步骤：通过轧制和冷却质量为C：0.02〜0.10％的钢坯，制造X60以上的钢板，Si： 0.01-0.50％，Mn：1.5-2.5％，P：≤0.01％，S：≤0.0030％，Nb：0.0001-0.2％，Al：0.0005-0.03％，Ti：0.003-0.030％铁和不可避免的杂质; 以及对钢板进行热处理的热处理工序。在热处理工序中，在以0.1-1.5℃/秒的升温速度将钢板加热到200-520℃的目标温度后，依次开始钢板的冷却，钢板冷却至200℃以下。版权所有（C）2012，JPO＆INPIT

9. 发明专利

JP2009155691A Direct-fire type roller hearth continuous heat-treatment furnace 有权
标题翻译：直喷型滚筒式连续式热处理炉
公开(公告)号：JP2009155691A
公开(公告)日：2009-07-16
申请号：JP2007335165
申请日：2007-12-26
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： SAITO TOSHIAKI , WATANABE DAISUKE , OSADA MOTOHIRO
IPC分类号： C21D1/52 , F27B9/10 , F27B9/36
摘要： PROBLEM TO BE SOLVED: To provide a direct-fire type roller hearth continuous heat-treatment furnace which can provide a desirable material in an adequate treatment period of time, through uniformly heating the article to be heat-treated by improving the uniformity of a temperature distribution in the furnace.
SOLUTION: The direct-fire type roller hearth continuous heat-treatment furnace 1 which has spaces inside the furnace partitioned into a plurality of combustion control zones in a transporting direction of the article to be heat-treated and has a thinning-out combustion function as a combustion control function has: burners 4 with relatively low discharging flow rates arranged in combustion control zones in a lower side of a transport roll R among combustion control zones in a prior stage, which heat the article to be heat-treated S almost to a treatment temperature, and combustion control zones in a posterior stage, which keep the temperature of the article to be heat-treated approximately at the treatment temperature; and burners with relatively high discharging flow rates arranged in combustion control zones in the upper side of the transport roll R among the combustion control zones in the posterior stage, which keep the temperature of the article to be heat-treated approximately at the treatment temperature.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种可在足够的处理时间内提供期望材料的直接式炉床连续热处理炉，通过均匀加热待热处理的制品，通过改善均匀性的炉中的温度分布。
解决方案：在炉内具有空间的直接式炉底连续热处理炉1在被热处理的物品的输送方向上分隔成多个燃烧控制区域，并且具有变薄作为燃烧控制功能的燃烧功能具有：燃烧器4，具有相对低的排出流量，布置在前一阶段的燃烧控制区域中的输送辊R的下侧中的燃烧控制区域中，其将待热处理的物体S加热几乎达到处理温度，在后期的燃烧控制区域，其使制品的温度大约在处理温度下进行热处理; 以及在后段的燃烧控制区域中配置在输送辊R的上侧的燃烧控制区域中的相对高的排出流量的燃烧器，其将待处理的物品的温度保持在大约处理温度。版权所有（C）2009，JPO＆INPIT

10. 发明专利

JP2001314995A FLUX-CORED WIRE FOR STAINLESS STEEL WELDING 失效
公开(公告)号：JP2001314995A
公开(公告)日：2001-11-13
申请号：JP2000132133
申请日：2000-05-01
申请人： NIPPON STEEL CORP
发明人： NAGASAKI HAJIME , MIZUMOTO MANABU , WATANABE DAISUKE , INOUE HIROSHIGE
IPC分类号： B23K35/362
摘要： PROBLEM TO BE SOLVED: To provide an improved flux-containing wire for stainless steel welding excellent in posture weldability such as vertical welding, overhead welding, etc., and stability of arc and further brings less spatter. SOLUTION: The slug in a flux is chiefly composed of 0.2-1.2 % of SiO2, 0.2-0.9% of ZrO2, 4.0-6.0 % of TiO2 in mass to the total wire weight. And in such a flux that the sum weight of slug components ranges 5.4-8.4% to the total wire weight is filled by 18-25 % in the outer skin of the stainless steel wire to form the flux-containing wire, Ti (ferrotitanium is shown by Ti converted value) composed of metallic titanium and ferro titanium is contained by 0.3-0.9% to the total wire weight, and the ratio is 20-60% of metallic titanium and 40-80% of ferro titanium.

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