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1. 发明专利

JP2008088504A Electron beam welded joint having excellent resistance to occurrence of brittle fracture 有权
$Electron beam welded joint having excellent resistance to occurrence of brittle fracture$
标题翻译：电子束焊接接头对脆性断裂的发生具有良好的抵抗能力
公开(公告)号：JP2008088504A
公开(公告)日：2008-04-17
申请号：JP2006271044
申请日：2006-10-02
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： ISHIKAWA TADASHI , HONMA RYUICHI , KOJIMA AKIHIKO , YOSHIDA YUZURU
IPC分类号： C22C38/00 , B23K15/00 , C22C38/14
摘要： PROBLEM TO BE SOLVED: To form a welded joint having a sufficiently high fracture toughness value δc by subjecting a high-strength steel plate for electron beam welding, which has ≥355 MPa class yield strength and >50 mm plate thickness, to butt welding.
SOLUTION: In butt welded joint of a welded structure formed by applying electron beam welding using steel which contains, by mass, 0.02 to 0.2% C, 0.8 to 3.5% Mn, 0.0005 to 0.0025% S, 2 .
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：通过对具有≥355MPa级屈服强度和> 50mm板厚的电子束焊接用高强度钢板进行处理，形成具有足够高的断裂韧度值δc的焊接接头对接焊。＆lt; P＆gt;解决方案：在通过使用钢的电子束焊接形成的焊接结构的对接焊接中，质量为0.02〜0.2％的C，0.8〜3.5％的Mn，0.0005〜0.0025％的S，<0.02％的Al和 0.01〜0.05％的Ti，其中Pcm值为0.12〜0.5％，焊接金属中所含的O量为≥20ppm，粒径≥2.0μm的氧化物的数量为≤10 个/ mm 2 。版权所有（C）2008，JPO＆INPIT

2. 发明专利

JP2009270632A Manufacturing method of splice plate 审中-公开
标题翻译：制造板的制造方法
公开(公告)号：JP2009270632A
公开(公告)日：2009-11-19
申请号：JP2008121865
申请日：2008-05-08
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： IMAI HIROFUMI , WATABE YOSHIYUKI , YOSHIDA YUZURU , HIRANO KOJI
IPC分类号： F16B43/00 , E04B1/48 , F16D69/00
摘要： PROBLEM TO BE SOLVED: To provide a manufacturing method of a splice plate capable of executing concavo-convex machining to a wide range of area by a simple method, while getting a slipping coefficient more than a predetermined value by forming a concavo-convex having less variation of concavo-convex formation with an enough roughness in a short time and at low cost.
SOLUTION: This manufacturing method is for a splice plate for bolt friction joint having a peaked concavo-convex 9 on its surface in the vicinity of the bolt hole 8. The concavo-convex 9 is formed by laser light irradiation at a power density of 10
5 W/cm
2 to 10
7 W/cm
2 , melting by an assist gas and a removal process. Further, the manufacturing method of the splice plate is characterized by the concavo-convex 9 installed in a radial pattern around the bolt hole 8.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种能够通过简单的方法对宽范围的区域进行凹凸加工的拼接板的制造方法，同时通过形成凹凸加工而获得大于预定值的滑移系数，在短时间内以低成本具有较小粗糙度的凹凸形状变化较小的凸起。解决方案：该制造方法是用于在螺栓孔8附近的表面上具有峰值凹凸9的螺栓摩擦接头的接合板。凹凸9通过激光照射而形成通过辅助气体熔化的10 5 W / cm 2 至10 7 W / cm 2 SP < 删除过程。此外，拼接板的制造方法的特征在于以围绕螺栓孔8的径向图案安装的凹凸9.版权所有（C）2010，JPO＆INPIT

3. 发明专利

JP2008087034A Electron beam welded joint having excellent resistance to generation of brittle fracture 有权
$Electron beam welded joint having excellent resistance to generation of brittle fracture$
标题翻译：电子束焊接接头，具有优异的抗破裂性能
公开(公告)号：JP2008087034A
公开(公告)日：2008-04-17
申请号：JP2006271074
申请日：2006-10-02
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： ISHIKAWA TADASHI , HONMA RYUICHI , KOJIMA AKIHIKO , YOSHIDA YUZURU
IPC分类号： B23K15/00 , B23K103/04
摘要： PROBLEM TO BE SOLVED: To provide a welded joint having a sufficiently high fracture toughness value δc by butt-welding a high-strength steel sheet for electron beam welding having a yield strength of ≥420 MPa class and a sheet thickness of >50 mm.
SOLUTION: In the butt welded joint of a welded structure obtained by subjecting a steel member comprising ≥2.5 mass% Ni to electron beam welding, the content of Ni contained in the weld metal of the welded joint is controlled to >4 to 8%, and hardness of the weld metal part is controlled to >110 to 220% to hardness of the base metal part.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种具有足够高的断裂韧度值δc的焊接接头，通过对屈服强度≥420MPa等级和板厚度>的电子束焊接用高强度钢板进行对焊， 50毫米。解决方案：在通过使包含≥2.5质量％的Ni的钢构件进行电子束焊接而获得的焊接结构的对接焊接中，焊接接头的焊接金属中所含的Ni的含量被控制为> 4〜 8％，焊接金属部件的硬度相对于贱金属部件的硬度控制在> 110〜220％。版权所有（C）2008，JPO＆INPIT

4. 发明专利

JP2007327100A Thick steel plate having excellent toughness in high-heat input weld heat affected zone 有权
标题翻译：在高输入焊接热影响区域内具有优异韧性的厚钢板
公开(公告)号：JP2007327100A
公开(公告)日：2007-12-20
申请号：JP2006159095
申请日：2006-06-07
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： KOJIMA AKIHIKO , TANAKA YOICHI , YOSHIDA YUZURU , NAKAJIMA KIYOTAKA
IPC分类号： C22C38/00 , C22C38/12 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide a thick steel plate having a thickness of 15 to 100 mm and a yield strength in a class of 325 to 500 MPa, and in which the average value of Charpy impact absorbed energy at -20 to 0°C is ≥150 J in a HAZ (Heat Affected Zone) welded by a welding heat input value of 20 to 150 kJ/mm.
SOLUTION: The thick steel plate having excellent toughness in the high heat input weld heat affected zone welded by a welding heat input value of 20 to 150 kJ/mm has a composition comprising, by mass, 0.03 to 0.2% C, ≤0.5% Si, 0.5 to 2.0% Mn, ≤0.02% P, 0.001 to 0.005% S, 0.001 to 0.1% Al, 0.01 to 0.1% V, 0.0001 to
摘要翻译：待解决的问题：提供厚度为15〜100mm，屈服强度为325〜500MPa的厚钢板，其中夏比冲击吸收能量的平均值为-20〜在焊接热输入值为20〜150kJ / mm的HAZ（受热影响区）中，0℃≥150J。解决方案：通过焊接热输入值为20至150kJ / mm焊接的高热输入焊接热影响区域中具有优异韧性的厚钢板具有以质量计0.03至0.2％C，≤ 0.5％Si，0.5-2.0％Mn，≤0.02％P，0.001至0.005％S，0.001至0.1％Al，0.01至0.1％V，0.0001至<0.0003％B，0.001至0.006％N和≤0.004％O ，余铁与不可避免的杂质。版权所有（C）2008，JPO＆INPIT

5. 发明专利

JP2005298900A Thick steel plate having excellent toughness in high heat input weld heat affected zone 有权
标题翻译：在高热输入焊接热影响区域内具有优异韧性的厚钢板
公开(公告)号：JP2005298900A
公开(公告)日：2005-10-27
申请号：JP2004116908
申请日：2004-04-12
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： KOJIMA AKIHIKO , TANAKA YOICHI , YOSHIDA YUZURU , MINAGAWA MASANORI , HOSHINO MANABU , UEMORI RYUJI
IPC分类号： C22C38/00 , C22C38/12 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide a thick steel plate having a thickness of 20 to 100 mm and a yield strength in a class of 325 to 460 MPa, and in which the average value of Charpy impact absorbed energy at -40°C or 0°C is ≥100J in a HAZ (heat affected zone) welded by a welding heat input value of 20 to 150 kJ/mm.
SOLUTION: The thick steel plate having excellent toughness in the high heat input weld heat affected zone has a composition comprising, by mass, 0.03 to 0.2% C, ≤0.5% Si, 0.5 to 2.0% Mn, ≤0015% P, 0001 to 0.005% S, 0001 to 0.1% Al, 0.02 to 0.1% V, 0.001 to 0.02% N and 0.001 to 0.004% O, further comprising one or more kinds of metals selected from 0.0003 to 0.005% Ca and 0.0003 to 0,005% Mg, if required, comprising one or more kinds of metals selected from 0.05 to 1% Cu, 0.05 to 3% Ni, 0.05 to 1% Cr, 0.05 to 1% Mo, 0.003 to 0.03% Nb, 0.003 to 0.03% Ti, 0.0003 to 0.003% B and 0.001 to 0.02% La+Ce, satisfying a specified inequality calculated using mass%, and the balance iron with inevitable impurities, and in which oxides or/and sulfides of 10 to 500 nm comprising Ca or/and Mg are present by ≥1,000 pieces/mm
2 .
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：解决的问题：提供厚度为20〜100mm，屈服强度为325〜460MPa的厚钢板，其中夏比冲击吸收能的平均值为-40° 在焊接热输入值为20〜150kJ / mm的HAZ（热影响区）中，C或0℃≥100J。解决方案：在高热输入焊接热影响区域中具有优异韧性的厚钢板具有质量为0.03〜0.2％C，≤0.5％Si，0.5〜2.0％Mn，≤10015％P ，0001〜0.005％S，0001〜0.1％Al，0.02〜0.1％V，0.001〜0.02％N，0.001〜0.004％O，进一步含有选自0.0003〜0.005％Ca和0.0003〜0,005 ％Mg，如果需要，可以含有选自0.05〜1％Cu，0.05〜3％Ni，0.05〜1％Cr，0.05〜1％Mo，0.003〜0.03％Nb，0.003〜0.03％Ti，，0.0003〜0.003％的B和0.001〜0.02％的La + Ce，满足使用质量％计算的规定的不等式，余量为铁与不可避免的杂质，其中包含Ca或/或 Mg存在≥1,000件/ mm 2 。版权所有（C）2006，JPO＆NCIPI

6. 发明专利

JP2004358546A Flash butt welding apparatus and its method 审中-公开
公开(公告)号：JP2004358546A
公开(公告)日：2004-12-24
申请号：JP2003162903
申请日：2003-06-06
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： ISHIKAWA HAJIME , UEMORI RYUJI , ICHIYAMA YASUTOMO , YOSHIDA YUZURU
IPC分类号： B23K11/04
摘要： PROBLEM TO BE SOLVED: To provide an apparatus and a method for flash butt welding, used for a building work and a civil work, etc.
SOLUTION: In the flash butt welding apparatus for welding steel materials with heat generated at butted part by butting both steel materials and supplying electric power into these steel materials, the flash butt welding apparatus is provided with electrodes for supplying the current by contacting the respective steel materials, an electrode attaching/detaching device for contacting or attaching/detaching the electrodes with the steel materials, a clamping member for holding the steel materials while positioning at the farther side (outside) from the butted part of the steel materials than a distance from the electrode and a pressing force control unit for controlling the butting force (pressing force) of the steel materials.
COPYRIGHT: (C)2005,JPO&NCIPI

7. 发明专利

JP2008087030A Electron beam welded joint having excellent resistance to generation of brittle fracture 审中-公开
$Electron beam welded joint having excellent resistance to generation of brittle fracture$
标题翻译：电子束焊接接头，具有优异的抗破裂性能
公开(公告)号：JP2008087030A
公开(公告)日：2008-04-17
申请号：JP2006270967
申请日：2006-10-02
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： ISHIKAWA TADASHI , HONMA RYUICHI , KOJIMA AKIHIKO , YOSHIDA YUZURU
IPC分类号： B23K15/00 , B23K35/30 , B23K103/04 , C22C38/00 , C22C38/54
摘要： PROBLEM TO BE SOLVED: To form a welded joint having a sufficiently high fracture toughness value δc by butt-welding a high-strength steel sheet for electron beam welding, which has a yield strength of ≥355 MPa class and a sheet thickness of >50 mm.
SOLUTION: In the butt-welded joint with a welded structure being subjected to electron beam welding using a steel member, Ni is contained in a weld metal by 1 to 4 mass%, and Ni content higher than the content of Ni in the base metal by 0.2 mass% or more is contained, and further, the hardness of the weld metal part is controlled to >110 to 220% to the hardness of the base metal.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：通过对具有≥355MPa等级的屈服强度等级和板厚度的电子束焊接用高强度钢板进行对焊，形成具有足够高的断裂韧度值δc的焊接接头 > 50 mm。解决方案：在使用钢构件进行电子束焊接的焊接结构的对接焊接中，焊接金属中含有1〜4质量％的Ni，Ni含量高于Ni的含量贱金属含有0.2质量％以上，另外，焊接金属部的硬度相对于母材的硬度控制在> 110〜220％。版权所有（C）2008，JPO＆INPIT

8. 发明专利

JP2007327099A Thick steel plate having excellent toughness in high-heat input weld heat affected zone 有权
标题翻译：在高输入焊接热影响区域内具有优异韧性的厚钢板
公开(公告)号：JP2007327099A
公开(公告)日：2007-12-20
申请号：JP2006159094
申请日：2006-06-07
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： KOJIMA AKIHIKO , TANAKA YOICHI , YOSHIDA YUZURU , NAKAJIMA KIYOTAKA
IPC分类号： C22C38/00 , C22C38/12 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To inexpensively provide a thick steel plate having a thickness of 15 to 100 mm and a yield strength in a class of 325 to 500 MPa, and in which the average value of Charpy impact adsorbed energy at -20 to 0°C is ≥100 J in a HAZ (Heat Affected Zone) welded by a welding heat input value of 20 to 150 kJ/mm.
SOLUTION: The thick steel plate having excellent toughness has a composition comprising, by mass, 0.08 to 0.2% C, ≤0.5% Si, 0.5 to 2.0% Mn, ≤0.02% P, 0.001 to 0.005% S, 0.001 to 0.1% Al, 0.01 to 0.1% V, 0.001 to 0.006% N and ≤0.004% O, and the balance iron with inevitable impurities.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：解决的问题：为了廉价地提供厚度为15〜100mm，屈服强度为325〜500MPa的厚钢板，其中夏比冲击的平均值吸附在-20℃的能量在焊接热输入值为20〜150kJ / mm的焊接的HAZ（受热影响区域）中，0℃≥100J。＆lt; P＆gt;解决方案：具有优异韧性的厚钢板具有质量分数为0.08〜0.2％，Si≤0.5％，Mn为0.5〜2.0％，≤0.02％P，0.001〜0.005％S，0.001〜 0.1％Al，0.01〜0.1％V，0.001〜0.006％N，≤0.004％O，余量为铁与不可避免的杂质。版权所有（C）2008，JPO＆INPIT

9. 发明专利

JP2003293077A Steel having excellent high heat input held zone property and low yield ratio 有权
标题翻译：具有优异的高热输入区域的钢和低成本率的钢
公开(公告)号：JP2003293077A
公开(公告)日：2003-10-15
申请号：JP2002104870
申请日：2002-04-08
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： KOJIMA AKIHIKO , TERADA YOSHIO , YOSHII KENICHI , YOSHIDA YUZURU
IPC分类号： C22C38/00 , C22C38/14 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide a steel sheet in which a base metal has a tensile strength (TS) in a class of 500 to 600 MPa, and a yield ratio (YR) of ≤80%, and softening in a HAZ (heat affected zone) is reduced. SOLUTION: The steel has chemical components containing, by mass, 0.08 to 0.16% C, ≤0.4% Si, 1.0 to 2.0% Mn, ≤0.02% P, 0.001 to 0.005% S, 0.001 to 0.01% Al, 0.005 to 0.03% Ti, 0.0001 to 0.005% Mg, 0.0003 to 0.003% B 0.001 to 0.004% O and 0.002 to 0.008% N and satisfying the following inequality [1], and the balance iron with inevitable impurities, and in which particles containing Ti and Mg are present in ≥10,000 pieces/mm 2 , particles containing B are present in ≥50 pieces/mm 2 , and particles containing Mn and S are present in ≥10 pieces/mm 2 : (Ti+1.77Al) /N≤10 [1]. COPYRIGHT: (C)2004,JPO
摘要翻译：待解决的问题：提供一种贱金属的拉伸强度（TS）为500〜600MPa，屈服比（YR）为≤80％，软化为 HAZ（热影响区）减少。钢的化学成分含有0.08〜0.16％的C，≤0.4％的Si，1.0〜2.0％的Mn，≤0.02％的P，0.001〜0.005％的S，0.001〜0.01％的Al，0.005 至0.03％的Ti，0.0001至0.005％的Mg，0.0003至0.003％的B为0.001至0.004％的O和0.002至0.008％的N，满足以下不等式[1]，余量为铁与不可避免的杂质，其中含有Ti 和Mg以≥10,000件/ mm 2 存在，含有B的颗粒以≥50件/ mm 2 存在，含有Mn和S的颗粒存在≥10 （Ti + 1.77Al）/N≤10[1]。版权所有（C）2004，JPO

10. 发明专利

JP2012106290A Electronic beam weld joint with excellent resistance to generation of brittle fracture 有权
$Electronic beam weld joint with excellent resistance to generation of brittle fracture$
标题翻译：电子束焊接接头，具有优异的抗破裂性能
公开(公告)号：JP2012106290A
公开(公告)日：2012-06-07
申请号：JP2012038953
申请日：2012-02-24
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： ISHIKAWA TADASHI , HONMA RYUICHI , KOJIMA AKIHIKO , YOSHIDA YUZURU , TANAKA YOICHI
IPC分类号： B23K15/00 , B23K35/02 , B23K35/30 , C22C38/00 , C22C38/06 , C22C38/14
摘要： PROBLEM TO BE SOLVED: To form a weld joint having a sufficiently high fracture toughness value δc by butt-welding a high-strength steel sheet for electron beam welding, which has yield strength of ≥355 MPa class and has a sheet thickness of >50 mm.SOLUTION: The electron beam weld joint with excellent resistance to generation of brittle fracture is a butt-weld joint of a welded structure, which has the following characteristics: (a) the hardness of a weld metal part is ≥110 and ≤220% of that of a base material; and (d) the prior austenite grain size of a weld heat-affected zone (HAZ) which is in contact with a weld fusion line is ≤100 μm; if necessary, (b) the width of the weld metal part is ≤20% of the sheet thickness of the base material; and/or (c) the width of the region of the weld heat-affected zone, which is softened to hardness of ≤95% that of the base material not affected by heat, is ≥3 mm.
摘要翻译：要解决的问题：通过对具有≥355MPa等级的屈服强度的电子束焊接用高强度钢板进行对焊，形成具有足够高的断裂韧度值δc的焊接接头，并且具有板厚 > 50 mm。解决方案：具有优异的脆性断裂产生的电子束焊接接头是焊接结构的对接焊缝，具有以下特性：（a）焊接金属部件的硬度≥110和≤ 220％的基材; 和（d）与焊接熔接线接触的焊接热影响区（HAZ）的原奥氏体晶粒尺寸≤100μm; 如果需要，（b）焊接金属部件的宽度不小于基材的板厚度的20％; 和/或（c）焊接热影响区域的宽度，软化至不受热影响的基材的硬度≤95％的硬度≥3mm。版权所有（C）2012，JPO＆INPIT

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