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1. 发明专利

JP2014114466A Cladding material of duplex stainless clad steel having excellent pitting-corrosion resistance, duplex stainless clad steel using the same, and method for producing the same 有权
标题翻译：具有优异耐蚀耐腐蚀性的双相不锈钢剥离材料的粘合材料，使用其的双相不锈钢剥离钢及其制造方法
公开(公告)号：JP2014114466A
公开(公告)日：2014-06-26
申请号：JP2012267775
申请日：2012-12-07
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： KURONUMA YOTA , YAZAWA YOSHIHIRO , KISHI KEIICHIRO , TACHIBANA SHUNICHI , MITAO SHINJI
IPC分类号： C22C38/00 , B21B1/38 , B21B3/02 , B23K20/04 , C21D8/02 , C22C38/58 , C23C24/08
摘要： PROBLEM TO BE SOLVED: To provide a cladding material of duplex stainless clad steel having excellent pitting-corrosion resistance, duplex stainless clad steel, and a method for producing the same.SOLUTION: The cladding material of duplex stainless clad steel has a componential composition comprising, by mass, 0.03% or lower of C, 0.001 to 0.15% Si, 2% or lower of Mn, 0.05% or lower of P, 0.01% or lower of S, 2 to 10% Ni, 20 to 28% Cr, 1 to 5% Mo and 0.01 to 0.30% N, and the balance Fe with inevitable impurities.
摘要翻译：要解决的问题：提供具有优异的耐点蚀性，双相不锈钢复合钢的双相不锈钢复合钢包层材料及其制造方法。解决方案：双相不锈钢复合钢包层材料具有组成成份，，0.03％以下的C，0.001〜0.15％的Si，2％以下的Mn，0.05％以下的P，0.01％以下的S，2〜10％的Ni，20〜28％的Cr， 1〜5％Mo和0.01〜0.30％N，余量为Fe与不可避免的杂质。

2. 发明专利

JP2014101555A Stainless clad steel excellent in sea water pitting corrosion resistance and appearance 审中-公开
标题翻译：海水不锈钢耐腐蚀耐腐蚀外观
公开(公告)号：JP2014101555A
公开(公告)日：2014-06-05
申请号：JP2012254811
申请日：2012-11-21
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： YAZAWA YOSHIHIRO , KISHI KEIICHIRO , TACHIBANA SHUNICHI , KURONUMA YOTA , MITAO SHINJI
IPC分类号： C22C38/00 , B21B1/38 , B21B3/02 , C21D8/00 , C21D8/02 , C22C38/54 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide a stainless clad steel excellent in sea water pitting corrosion resistance and appearance.SOLUTION: The stainless clad steel excellent in sea water pitting corrosion resistance and appearance is a stainless clad steel obtained by using as a clad material, a stainless steel having a Pitting Index represented by Cr (mass%)+3.3 Mo (mass%)+16 N (mass%) of 40.0 or more, containing 10 to 40 ppm of B and having σ phase area percentage of a surface of 1.0% or less. The stainless clad steel excellent in sea water pitting corrosion resistance and appearance has glossiness in a rolling direction, a rolling vertical direction and rolling 45° direction measured at a measurement angle of 60° according to JISZ8741 "specular glossiness-measurement method" of each 60 or more.
摘要翻译：要解决的问题：提供优异的耐海水蚀点腐蚀性和外观的不锈钢复合钢。解决方案：海水耐点腐蚀性和外观优异的不锈钢复合钢是通过使用作为包覆材料获得的不锈钢复合钢，具有由Cr（质量％）+ 3.3Mo（质量％）+ 16N（质量％）表示的点蚀指数为40.0以上的不锈钢，含有10〜40ppm的B且具有＆Gr; 表面的相面积百分比为1.0％以下。根据JISZ8741“各种60°的”镜面光泽度测定法“，测定角度为60°时，耐海水腐蚀性和外观优异的不锈钢复合钢在轧制方向，轧制垂直方向和轧制45°方向上具有光泽度或者更多。

3. 发明专利

JP2013255936A Method for manufacturing austenitic stainless-clad steel excellent in marine corrosion resistance and low-temperature toughness 有权
标题翻译：在海洋耐腐蚀和低温韧性下制造奥氏体不锈钢优良的方法
公开(公告)号：JP2013255936A
公开(公告)日：2013-12-26
申请号：JP2012133772
申请日：2012-06-13
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： KISHI KEIICHIRO , YAZAWA YOSHIHIRO , TACHIBANA SHUNICHI , KURONUMA YOTA , HOSHINO TOSHIYUKI
IPC分类号： B21B1/38 , B23K20/04 , C21D8/02 , C22C38/00 , C22C38/38 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide an austenitic stainless-clad steel excellent in marine corrosion resistance and low-temperature toughness.SOLUTION: In a method for manufacturing austenitic stainless-clad steel with 30 mm or more total thickness excellent in marine corrosion resistance and low-temperature toughness, a carbon steel contains, by mass%, 0.10-0.15% C; 0.25-0.40% Si; 0.45-2.0% Mn; ≤0.015% P; ≤0.004% S; ≤0.006% N; 0.01-0.1% Cr; 0.005-0.05% Nb; and 0.005-0.05% Al, and is composed of the balance Fe and unavoidable impurities, regarding the component composition. A clad steel material including the carbon steel as a base material and austenitic stainless steel as a laminated material is heated to temperature of 1,000-1,250°C before starting hot rolling, in which a cumulative rolling reduction of control rolling in a temperature range of 730-950°C is set to be 30% or more, and rolling finishing temperature is set to be 730-850°C.
摘要翻译：要解决的问题：提供优异的海洋耐腐蚀性和低温韧性的奥氏体不锈钢复合钢。解决方案：在具有30mm以上的总厚度的奥氏体不锈钢复合钢的制造方法中，耐海洋性耐腐蚀性低， - 高温韧性，碳钢以质量％计含有0.10-0.15％C; 0.25-0.40％Si; 0.45-2.0％Mn; ≤0.015％P; ≤0.004％S; ≤0.006％N; 0.01-0.1％Cr; 0.005-0.05％Nb; 和0.005-0.05％的Al，并且由组分组成的余量为Fe和不可避免的杂质构成。将作为基材的碳素钢和作为层压材料的奥氏体不锈钢的复合钢材在起动热轧之前加热至1000〜1,250℃的温度，其中在730℃的温度范围内的控制轧制的累积压下率 -950℃设定为30％以上，轧制终轧温度设定为730〜850℃。

4. 发明专利

JP2013194314A Steel material superior in corrosion resistance after coating 有权
标题翻译：涂层后耐腐蚀性的钢材料
公开(公告)号：JP2013194314A
公开(公告)日：2013-09-30
申请号：JP2012066277
申请日：2012-03-22
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： MURASE MASAJI , YAZAWA YOSHIHIRO , TACHIBANA SHUNICHI , HOSHINO TOSHIYUKI
IPC分类号： C22C38/00 , C21D8/02 , C22C38/16 , C22C38/60
摘要： PROBLEM TO BE SOLVED: To provide a steel material superior in corrosion resistance after coating capable of enhancing corrosion resistance of steel itself, and extending corrosion resistance period after coating for every environment by changing a kind of steel corresponding to an environment.SOLUTION: A steel material has a composition including, by mass%, C: 0.03-0.3%, Si: 0.01-1.0%, Mn: 0.1-2.0%, P: 0.03% or less, S: 0.005% or less, W: 0.01% or more but less than 0.10% and Cu: 0.01-0.5%, while satisfying a relation of 0.3≤10 W+Cu≤1.0 in the sum of W and Cu, and the remainder being Fe and inevitable impurities. According to four environmental regions (region I, region II, region III and region IV) shown in Fig.1, the mass ratio of W to Cu is adjusted to the ranges shown by the following expressions. For the region I, 0.1≤10W/Cu≤1, for the region II, 3≤10W/Cu≤30, for the region III, 1≤10W/Cu≤3, and for the region IV, 3≤10W/Cu≤30.
摘要翻译：要解决的问题：提供一种在涂层后耐腐蚀性优异的钢材，其能够提高钢本身的耐腐蚀性，并且通过改变对应于环境的钢种，在每个环境中涂覆后的耐腐蚀时间延长。解决方案：钢材料具有以质量％计含有C：0.03〜0.3％，Si：0.01〜1.0％，Mn：0.1〜2.0％，P：0.03％以下，S：0.005％以下，W：0.01％更多但小于0.10％，Cu：0.01-0.5％，同时在W和Cu之和中满足0.3≤10W +Cu≤1.0的关系，其余为Fe和不可避免的杂质。根据图1所示的四个环境区域（区域I，区域II，区域III和区域IV），W与Cu的质量比被调整到由下式表示的范围。对于区域I，对于区域II，0.1≤10W/Cu≤1，对于区域III，3≤10W/Cu≤30，对于区域III，1≤10W/Cu≤3，对于区域IV，3≤10W/ Cu ≤30。

5. 发明专利

JP2012092404A Steel for ship having excellent coating corrosion resistance 审中-公开
标题翻译：具有优异涂层耐腐蚀性能的钢
公开(公告)号：JP2012092404A
公开(公告)日：2012-05-17
申请号：JP2010241674
申请日：2010-10-28
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： TACHIBANA SHUNICHI , SHIOTANI KAZUHIKO , KOMORI TSUTOMU , HOSHINO TOSHIYUKI
IPC分类号： C22C38/00 , B32B15/08 , C22C38/60 , C23C26/00
摘要： PROBLEM TO BE SOLVED: To provide a steel for a ship having excellent coating corrosion resistance, which has no need of performing repair coating for up to 25 years which is a ship design life even in a severe seawater corrosive environment of the ballast tank, etc. of the ship.SOLUTION: The steel having high coating corrosion resistance has a chemical composition including, by mass%, 0.01 to 0.20% C; 0.01 to 2.5% Si; 0.1 to 2.0% Mn; ≤0.03% P; ≤0.01% S; 0.005 to 0.3% Al; and ≤0.008% N; and further contains one or more elements selected from 0.005 to 3.0% Mo; 0.005 to 3.0% W; 0.005 to 2.0% Cu; 0.005 to 5.0% Cr; 0.005 to 5.0% Ni; 0.005 to 1.0% Sb; 0.005 to 1.0% Sn; 0.001 to 0.5% V; 0.0001 to 0.01% Mg, the steel including a specific zinc primer.
摘要翻译：要解决的问题：提供具有优异的耐腐蚀性的船舶的钢，其不需要执行修复涂层长达25年，即使在严格的海水腐蚀性环境中的船舶设计寿命坦克等。解决方案：具有高涂层耐腐蚀性的钢具有以质量％计含有0.01至0.20％C的化学组成; 0.01〜2.5％Si; 0.1〜2.0％Mn; ≤0.03％P; ≤0.01％S; 0.005〜0.3％的Al; 和≤0.008％N; 并且进一步含有选自0.005〜3.0％Mo的一种或多种元素; 0.005〜3.0％W; 0.005〜2.0％的Cu; 0.005〜5.0％Cr; 0.005〜5.0％Ni; 0.005〜1.0％Sb; 0.005〜1.0％Sn; 0.001〜0.5％V; 0.0001〜0.01％的Mg，钢包含特定的锌底漆。版权所有（C）2012，JPO＆INPIT

6. 发明专利

JP2014189886A Production method of extra thickness martensitic stainless thick steel plate excellent in inner quality characteristic, and extra thickness martensitic stainless thick steel plate excellent in inner quality characteristic 有权
标题翻译：外径厚度不均匀的厚钢板的生产方法优质的内部质量特性和超厚度的马氏体不锈钢厚度优于内部质量特性的厚钢板
公开(公告)号：JP2014189886A
公开(公告)日：2014-10-06
申请号：JP2013069082
申请日：2013-03-28
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： YAZAWA YOSHIHIRO , TACHIBANA SHUNICHI
IPC分类号： C21D8/02 , C22C38/00 , C22C38/40
摘要： PROBLEM TO BE SOLVED: To provide a production method of an extra thickness martensitic stainless thick steel plate excellent in an inner quality characteristic; and an extra thickness austenitic stainless thick steel plate excellent in the inner quality characteristic.SOLUTION: A production method of an extra thickness martensitic stainless steel palate of at least 80 mm thickness includes the following processes. 1: A process in which a slab by continuous casting is heated at 1010°C-1150°C, both ends of a crosswise direction of the slab is performed by forging draft from the crosswise direction, a slab width is shortened by at least 300 mm, and these both ends are thickened. 2: A process in which forging is performed to draft in a slab thickness direction by a draft ratio exceeding 10% at a temperature of at least Atransformation point (830°C). 3: A process in which the slab is heated at a range of 1090°C-1150°C, and rolling is performed by a working condition in which the total draft ratio in which a forging draft ratio and a rolling draft ratio in the 2 are summed is at least 20% and less than 60%. The extra thickness martensitic stainless steel plate is that a number of a porosity of a 0.1 mmφ-1.0 mmφ radius in a slab rolling vertical direction full width, and a board thickness of 1/2 thickness ±10 mm position is at most 10/100 mm.
摘要翻译：要解决的问题：提供优异的内部质量特性的超厚度马氏体不锈钢厚钢板的制造方法; 以及内部品质特性优异的奥氏体不锈钢厚板。另外，厚度为80mm以上的超厚度马氏体不锈钢颚板的制造方法包括以下工序。 1：将通过连续铸造的板坯在1010℃〜1150℃下加热的方法，通过横向的锻压进行板坯横向的两端，板坯宽度缩短至少300 mm，这两端增厚。 2：在至少变形点（830℃）的温度下，通过牵伸比超过10％的板坯厚度方向进行锻造的方法。 3：将板坯加热到1090℃〜1150℃的范围的加工方法，通过将2号锻造牵伸比和轧制牵伸比的总牵伸比进行轧制，总和至少为20％且小于60％。额外的厚度马氏体不锈钢板的孔隙率为0.1mm＆phgr。-1.0mm＆phgr; 板坯纵向方向全宽的半径，1/2厚度±10mm的板厚度最多为10/100mm。

7. 发明专利

JP2014132113A Stainless clad steel plate excellent in seawater corrosion resistance 有权
标题翻译：不锈钢板在海水腐蚀电阻中表现优异
公开(公告)号：JP2014132113A
公开(公告)日：2014-07-17
申请号：JP2013250801
申请日：2013-12-04
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： KISHI KEIICHIRO , YOKOTA TOMOYUKI , YAZAWA YOSHIHIRO , TACHIBANA SHUNICHI , KURONUMA YOTA , SUEYOSHI HITOSHI
IPC分类号： C22C38/00 , C22C38/58
CPC分类号： C22C38/54 , B23K35/004 , B23K35/3053 , B23K35/308 , B23K35/3086 , B32B15/011 , C22C38/001 , C22C38/004 , C22C38/02 , C22C38/04 , C22C38/40 , C22C38/42 , C22C38/44 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide a stainless clad steel plate which is excellent in seawater corrosion resistance and simultaneously satisfies both corrosion resistance and mechanical characteristics.SOLUTION: There is provided a stainless clad steel plate which is excellent in seawater corrosion resistance, in which a cladding material for the stainless clad steel plate is composed by mass of 0.030% or less of C, 0.02 to 1.50% of Si, 0.02 to 2.0% of Mn, 0.040% or less of P, 0.030% or less of S, 22.0 to 25.0% of Ni, 22.0 to 26.0% of Cr, 3.5 to 5.0% of Mo and 0.10 to 0.25% of N, the remainder of Fe and inevitable impurities and further satisfies the following expression (1), and 0.3 mass% or less of Cr and 0.2 mass% or less of Mo are present in a precipitated state in the steel. Cr+3.3Mo+16 N≥40 (1): in which, each symbol of element represents the mass% of each element.
摘要翻译：要解决的问题：提供一种耐海水腐蚀性优异且同时满足耐腐蚀性和机械特性的不锈钢复合钢板。解决方案：提供一种耐海水腐蚀性优异的不锈钢复合钢板，其中不锈钢复合钢板的覆层材料由C：0.030％以下，Si：0.02〜1.50％，Mn：0.02〜2.0％，P：0.040％以下，S：0.030％以下，22.0〜 25.0％的Ni，22.0〜26.0％的Cr，3.5〜5.0％的Mo和0.10〜0.25％的N，剩余的Fe和不可避免的杂质进一步满足下式（1），和0.3质量％以下的 Cr和0.2质量％以下的Mo以钢的析出状态存在。 Cr + 3.3Mo +16N≥40（1）：其中，元素的每个符号表示每个元素的质量％。

8. 发明专利

JP2011162849A Zinc primer-coated corrosion resistant steel material 审中-公开
标题翻译： ZINC镀层耐腐蚀钢材
公开(公告)号：JP2011162849A
公开(公告)日：2011-08-25
申请号：JP2010027555
申请日：2010-02-10
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： SHIOTANI KAZUHIKO , TACHIBANA SHUNICHI , KOMORI TSUTOMU
IPC分类号： C22C38/00 , B05D7/14 , C22C38/60 , C23F11/00
摘要： PROBLEM TO BE SOLVED: To provide a zinc primer-coated corrosion resistant steel material which has excellent corrosion resistance.
SOLUTION: The zinc primer-coated corrosion resistant steel material having excellent corrosion resistance is obtained by forming a zinc primer coating film containing 5 to 30 g/m
2 Zn in terms of coating weight and 0.003 to 3 g/m
2 P in terms of coating weight on the surface of a steel material containing, by mass, 0.01-0.25% C, 0.05-0.50% Si, 0.1-2.0% Mn, ≤0.035% P, ≤0.01% S, ≤0.10% Al, 0.005-0.030% Ti and 0.0010-0.0070% N, further containing one or two selected from 0.01-0.5% W and 0.02-0.5% Mo, further containing one or two selected from 0.001-0.2% Sn and 0.01-0.2% Sb, and containing Cu, Ni, Cr and Co each of which the mixing amount is controlled to
摘要翻译：要解决的问题：提供耐腐蚀性优异的锌底漆涂层耐腐蚀钢材。解决方案：具有优异耐腐蚀性的锌底漆涂层耐腐蚀钢材料通过以涂层重量计含有5至30g / m 2 SP / Zn Zn的锌底漆涂层获得，并且0.003 以质量计含有0.01-0.25％C，0.05-0.50％Si，0.1-2.0％Mn，≤1.0％的钢材表面上的涂层重量计，以3g / m 2 / 0.035％P，≤0.01％S，≤0.10％Al，0.005-0.030％Ti和0.0010-0.0070％N，还含有选自0.01-0.5％W和0.02-0.5％Mo中的一种或两种，还含有一个或两个选自0.001-0.2％的Sn和0.01-0.2％的Sb，并且含有Cu，Ni，Cr和Co，其中混合量控制在<0.20％，余量为Fe与不可避免的杂质。版权所有（C）2011，JPO＆INPIT

9. 发明专利

JP2011117065A Highly corrosion-resistant mill scale steel 审中-公开
标题翻译：耐高温耐磨钢坯
公开(公告)号：JP2011117065A
公开(公告)日：2011-06-16
申请号：JP2010084277
申请日：2010-03-31
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： KOMORI TSUTOMU , TACHIBANA SHUNICHI
IPC分类号： C23C22/40
摘要： PROBLEM TO BE SOLVED: To provide a highly corrosion-resistant mill scale steel in which removal of surface scale and priming treatment are unnecessary, and the desired corrosion resistance is demonstrated even when mill scale steel is used without machining.
SOLUTION: In the steel whose surface is covered with an oxide layer essentially consisting of iron, a substance covering a cracking part or a peeling part in the iron-based oxide layer is applied for the purpose of preventing the intrusion of a corrosive factor from the cracking part or the peeling part. Further, the substance covering the cracking part or the peeling part is composed of a substance made of the oxide of tungsten or molybdenum, tungstate or molybdate. Since the substance forms the film burying the cracking part or peeling part, its corrosion resistance improves. Further, by the improvement of the corrosion resistance, upon an actual operation, mill scale steel can be used outdoors without machining, further, rust generation in an application process is remarkably reduced; thus its adhesion with the steel is further satisfactory even in use in combination with concrete or the like. Also, excessive time is not taken in a coating pretreatment step by remarkable rust formation in the case that coating is performed, and coating finishability is made satisfactory as well.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：为了提供不需要去除表面粗糙度和起泡处理的高度耐腐蚀的轧钢，并且即使在不加工的情况下使用轧机钢也能够证明所需的耐腐蚀性。解决方案：在其表面被基本上由铁组成的氧化物层覆盖的钢中，为了防止腐蚀性的侵入，施加覆盖铁基氧化物层中的裂化部分或剥离部分的物质因素来自裂化部分或剥离部分。此外，覆盖裂解部或剥离部的物质由钨或钼的氧化物，钨酸盐或钼酸盐构成的物质构成。由于该物质形成了掩埋裂纹部分或剥离部分的膜，所以其耐蚀性得到改善。此外，通过提高耐腐蚀性，在实际操作中，可以在不进行机械加工的情况下在户外使用轧制钢，进一步减少施加工序中的生锈。因此即使与混凝土等结合使用，其与钢的粘合性也更令人满意。此外，在进行涂布的情况下，通过显着的锈蚀形成，并且涂布整理性也令人满意，在涂布预处理步骤中不会花费过多的时间。版权所有（C）2011，JPO＆INPIT

10. 发明专利

JP2011089177A Method for manufacturing surface treated steel sheet excellent in rust prevention property 有权
标题翻译：表面处理钢板的制造方法优良的防腐性能
公开(公告)号：JP2011089177A
公开(公告)日：2011-05-06
申请号：JP2009243759
申请日：2009-10-22
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： AOYAMA TOMOHIRO , NAGOSHI MASAYASU , TACHIBANA SHUNICHI , SHIOTANI KAZUHIKO
IPC分类号： C23C22/40
摘要： PROBLEM TO BE SOLVED: To provide method for improving primary rust prevention property of a steel sheet by applying a coating film, in which problems such as changes in the color tone or occurrence of color irregularity in the steel sheet, changes in the color tone or occurrence of color irregularity caused by heating of the steel sheet, and peeling of the coating film during working, are avoided, and the treatment liquid has high safeness, and to provide a steel sheet excellent in the primary rust prevention property.
SOLUTION: A coating film containing W is formed by immersing a steel sheet in the aqueous solution of a neutral salt containing tungstic acid, or by applying the aqueous solution to the surface of a steel and drying it.
COPYRIGHT: (C)2011,JPO&INPIT

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