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1. 发明专利

JP2014012887A Maraging steel 有权
标题翻译： MARAGING钢铁
公开(公告)号：JP2014012887A
公开(公告)日：2014-01-23
申请号：JP2013108556
申请日：2013-05-23
申请人： Daido Steel Co Ltd , 大同特殊鋼株式会社 , Ihi Corp , 株式会社Ihi
发明人： UEDA SHIGENORI , TAKABAYASHI HIROYUKI , KIMURA EI , TANAKA YUUTAI , TAKAHASHI SATOSHI , NAKANOWATARI ISAO , SASAKI KOTA , YAMANE KOSHIRO , YUSA SATORU
IPC分类号： C22C38/00 , C21D1/18 , C21D6/00 , C21D6/04 , C22C38/52
CPC分类号： C21D6/004 , C21D1/25 , C21D6/007 , C21D6/02 , C21D6/04 , C21D7/13 , C22C38/06 , C22C38/44 , C22C38/50 , C22C38/52
摘要： PROBLEM TO BE SOLVED: To provide a maraging steel having a tensile strength of 2300 MPa or more and excellent in ductility, toughness and fatigue characteristic.SOLUTION: A maraging steel contains 0.10≤C≤0.30 mass%, 6.0≤Ni≤9.4 mass%, 11.0≤Co≤20.0 mass%, 1.0≤Mo≤6.0 mass%, 2.0≤Cr≤6.0 mass%, 0.5≤Al≤1.3 mass% and Ti≤0.1 mass% and the balance Fe with inevitable impurities and satisfies 1.00≤A≤1.08 (A=0.95+0.35×[C]-0.0092×[Ni]+0.011×[Co]-0.02×[Cr]-0.001×[Mo], and [] representing the content of each chemical element (mass%)).
摘要翻译：要解决的问题：提供拉伸强度为2300MPa以上的马氏体时效钢，延展性，韧性和疲劳特性优异。解决方案：马氏体时效钢含有0.10≤C≤0.30质量％，6.0≤Ni≤9.4质量％，11.0≤Co≤20.0质量％，1.0≤Mo≤6.0质量％，2.0≤Cr≤6.0质量％，0.5≤Al≤3.3质量％，Ti≤0.1质量％，余量为Fe的不可避免的杂质，满足1.00≤A ≤1.08（A = 0.95 + 0.35×[C] -0.0092×[Ni] + 0.011×[Co] -0.02×[Cr] -0.001×[Mo]和[]表示各化学元素的含量（质量％））。

2. 发明专利

JP2013253277A MARAGING STEEL 审中-公开
公开(公告)号：JP2013253277A
公开(公告)日：2013-12-19
申请号：JP2012128501
申请日：2012-06-06
申请人： IHI CORP , DAIDO STEEL CO LTD
发明人： TANAKA YUTA , YAMANE KOSHIRO , TAKAHASHI SATOSHI , YUSA SATORU , SASAKI KOTA , UEDA SHIGENORI , TAKABAYASHI HIROYUKI , KIMURA EI
IPC分类号： C22C38/00 , C21D8/00 , C22C38/12
摘要： PROBLEM TO BE SOLVED: To provide a maraging steel having a high fatigue strength and sufficiently high tensile strength, hardness, toughness and ductility in comparison with a conventional one.SOLUTION: A maraging steel includes, as a main component, Fe and Ni, Co, and Mo, wherein the content of Co is ≥7.0 mass% and the content of C is

3. 发明专利

JP2015045034A マルテンサイト系Ｂｉ快削ステンレス鋼有权
标题翻译： MARTENSITIC双自由切割不锈钢
公开(公告)号：JP2015045034A
公开(公告)日：2015-03-12
申请号：JP2013175185
申请日：2013-08-27
申请人：大同特殊鋼株式会社 , Daido Steel Co Ltd
发明人： AKASHI MARI , UEDA SHIGENORI
IPC分类号： C22C38/00 , C22C38/60
摘要：【課題】快削元素としてのPbを含まず、Pbに代えてBiをS,Teとともに複合添加して成るマルテンサイト系快削ステンレス鋼において、Pbに代えてBiを添加することにより良好な被削性を確保しつつ熱間加工性の低下の問題を解決することを目的とする。【解決手段】マルテンサイト系Bi快削ステンレス鋼を、質量%でC:0.10超〜0.35%未満,Si:0.10〜2.0%,Mn:0.80〜2.0%,P:0.005〜0.050%,S:0.10〜0.30%,Cr:10.0〜18.0%,Bi:0.01〜0.30%,Te:0.01〜0.10%,O:0.005〜0.030%,B:0.0005〜0.0100%,N:0.04%以下,残部Fe及び不可避的不純物の組成を有し、下記式(1),式(2),式(3)5?[C]+2?[S]+10?[Te]+3?[Bi]≦̸2.90・・式(1)3.0≦̸[Mn]/[S]≦̸15.0・・式(2)10≦̸[S]/[O]≦̸40・・式(3)を満たし、且つ円相当径が2.0μm以上でアスペクト比が10以下である硫化物が総量として面積率で0.50〜10.0%存在するようにする。【選択図】なし
摘要翻译：要解决的问题：为了解决热加工性降低的问题，同时通过在不含Pb的马氏体不含切削不锈钢中添加Bi代替Pb来确保良好的切削加工性，作为自由切削元件，并且通过复合添加Bi代替 Pb与S和Te一起使用。马氏体Bi自由切削不锈钢具有以质量％计含有C：0.10〜0.35％以下，Si：0.10〜2.0％，Mn：0.80〜2.0％，P ：0.005〜0.050％，S：0.10〜0.30％，Cr：10.0〜18.0％，Bi：0.01〜0.30％，Te：0.01〜0.10％，O：0.005〜0.030％，B：0.0005〜0.0100，N： 0.04％以下，余量为不可避免的杂质，满足下式（1），式（2）和式（3），5×[C] + 2×[S] + 10×[Te] + 3× [Bi]≤2.90式（1），3.0≤[Mn] / [S]≤15.0式（2），10≤[S] / [O]≤40式（3）为2.0μm以上，纵横比为10以下，面积比为0.50〜10.0％。

4. 发明专利

JP2013221158A Precipitation hardening stainless steel 审中-公开
标题翻译：降低硬化不锈钢
公开(公告)号：JP2013221158A
公开(公告)日：2013-10-28
申请号：JP2012091324
申请日：2012-04-12
申请人： Daido Steel Co Ltd , 大同特殊鋼株式会社
发明人： AKASHI MARI , UEDA SHIGENORI
IPC分类号： C22C38/00 , C21D8/00 , C22C38/52 , C22C38/54
摘要： PROBLEM TO BE SOLVED: To provide a precipitation hardening stainless steel having both high corrosion resistance and high hardness.SOLUTION: A precipitation hardening stainless steel contains, by mass, C≤0.05%, 0.5≤Si
摘要翻译：要解决的问题：提供具有高耐腐蚀性和高硬度的沉淀硬化不锈钢。溶液：沉淀硬化不锈钢以质量计含有C≤0.05％，0.5≤Si<2.0％，Mn≤1.50％ 0.5

5. 发明专利

JP2011006776A High corrosion-resistant, high-strength and non-magnetic stainless steel, high corrosion-resistant, high-strength and non-magnetic stainless steel product and method for producing the same 有权
标题翻译：高耐腐蚀性，高强度和非磁性不锈钢，高耐腐蚀性，高强度和非磁性不锈钢产品及其生产方法
公开(公告)号：JP2011006776A
公开(公告)日：2011-01-13
申请号：JP2010015591
申请日：2010-01-27
申请人： Daido Steel Co Ltd , 大同特殊鋼株式会社
发明人： ISHIKAWA KOICHI , UEDA SHIGENORI
IPC分类号： C22C38/00 , C21D8/06 , C22C38/58
CPC分类号： C22C38/18 , C21D8/12 , C21D9/22 , C22C38/04 , C22C38/20
摘要： PROBLEM TO BE SOLVED: To provide a high corrosion-resistant, high-strength and non-magnetic stainless steel having high corrosion resistance, high strength and non-magnetism, and is suitably used for oil well evacuation products in particular.SOLUTION: The high corrosion-resistant, high-strength and non-magnetic stainless steel contains: C: 0.01% to 0.05% by mass, Si: 0.05 to 0.50% by mass, Mn: more than 16.0% by mass but 19.0% by mass or less: P: 0.040% by mass or less: S: 0.010% by mass or less, Cu: 0.50% to 0.80% by mass, Ni: 3.5% to 5.0% by mass, Cr: 17.0% to 21.0% by mass, Mo: 1.80% to 3.50% by mass, B: 0.0010% to 0.0050% by mass, O: 0.010% by mass or less, and N: 0.45% to 0.65% by mass, with the balance substantially composed of Fe and unavoidable impurities, the steel satisfying the following equations: [Cr]+3.3×[Mo]+16×[N]≥30, [Cr]/[C]≥330, [Cr]/[Mn]>1.0 and ([Ni]+3×[Cu])/([Cr]+[Mo])>0.25.
摘要翻译：要解决的问题：提供具有高耐腐蚀性，高强度和无磁性的高耐腐蚀，高强度和非磁性的不锈钢，特别适用于油井疏散产品。解决方案：高耐腐蚀性，高强度，非磁性的不锈钢含有：C：0.01〜0.05质量％，Si：0.05〜0.50质量％，Mn：16.0质量％以上19.0质量％以下： P：0.040质量％以下S：0.010质量％以下Cu：0.50〜0.80质量％，Ni：3.5〜5.0质量％，Cr：17.0〜21.0质量％，Mo： 1.80〜3.50质量％，B：0.0010〜0.0050质量％，O：0.010质量％以下，N：0.45〜0.65质量％，余量基本上由Fe和不可避免的杂质组成，满足以下等式：[Cr] + 3.3×[Mo] + 16×[N]≥30，[Cr] / [C]≥330，[Cr] / [Mn]> 1.0和（[Ni] +3 ×[铜]）/（[CR] + [Mo]的）> 0.25。

6. 发明专利

JP2009228024A Co-BASED ALLOY 有权
标题翻译：共同合金
公开(公告)号：JP2009228024A
公开(公告)日：2009-10-08
申请号：JP2008072104
申请日：2008-03-19
申请人： Daido Steel Co Ltd , Honda Motor Co Ltd , Tohoku Univ , 国立大学法人東北大学 , 大同特殊鋼株式会社 , 本田技研工業株式会社
发明人： OSAKI MOTOTSUGU , UEDA SHIGENORI , SHIMIZU TETSUYA , ISHIDA KIYOHITO , OMORI TOSHIHIRO , NAGAHAMA DAISUKE , HAYASHI SUKEHIRO , WAJIMA YOSHIHIKO
IPC分类号： C22C19/07 , C22F1/00 , C22F1/10
摘要： PROBLEM TO BE SOLVED: To provide a Co-based alloy having high temperature strength, and also having excellent hot workability. SOLUTION: Disclosed is a Co-based alloy having a composition comprising, by mass, 0.1 to 20.0% Cr, 1.0 to 6.0% Al, 3.0 to 26.0% W and ≤50.0% Ni, and the balance Co with inevitable impurities, and satisfying 5.0≤Cr+Al≤20.0 mass%, and in which the volume ratio of a second phase composed of a μ phase expressed by A 7 B 6 and a Laves phase expressed by A 2 B is ≤10%. The Co-based alloy is preferably obtained by performing homogenizing heat treatment at 1,000 to 1,250°C for ≥10 hr after melting and casting. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供具有高温强度的Co基合金，并且还具有优异的热加工性。解决方案：公开了一种组合物，其组成包括：质量分数为0.1〜20.0％的Cr，1.0〜6.0％的Al，3.0〜26.0％的W和≤50.0的Ni，余量为Co，不可避免的杂质，满足5.0≤Cr+Al≤20.0质量％，其中由A B 6 表示的μ相的第二相的体积比和由A 2 B表示的Laves相≤10％。钴基合金优选通过在熔融和铸造后在1000至1250℃进行均匀热处理≥10小时而获得。版权所有（C）2010，JPO＆INPIT

7. 发明专利

JP2006225756A HEAT RESISTANT ALLOY FOR EXHAUST VALVE ENDURING USE AT 900°C AND EXHAUST VALVE USING THE ALLOY 审中-公开
公开(公告)号：JP2006225756A
公开(公告)日：2006-08-31
申请号：JP2005341574
申请日：2005-11-28
申请人： DAIDO STEEL CO LTD , HONDA MOTOR CO LTD
发明人： UEDA SHIGENORI , KURATA SEIJI , SHIMIZU TETSUYA , NODA TOSHIHARU , TOMINAGA KATSUHIKO , ASAMI MAKOTO
IPC分类号： C22C19/05 , C22F1/00 , C22F1/10 , F01L3/02
摘要： PROBLEM TO BE SOLVED: To provide an exhaust valve for automobile engine which is usable at 900°C and also has a high fatigue strength and oxidation resistance. SOLUTION: The exhaust valve is obtained by hot forging a Ni-based alloy comprising, by weight, 0.01-0.15% C; not more than 2.0% Si; not more than 1.0% Mn; not more than 0.02% P; not more than 0.01% S; 0.1-15% Co; 15-25% Cr; 3-10% (Mo+0.5 W) in one or two of 0.1-10% Mo and 0.1-5% W; 1.0-3.0% Al and 2.0-3.5% Ti but 6.3-8.5 atomic% (Al+Ti) and 0.4-0.8 of Ti/Al ratio; moreover, by weight, 0.001-0.01% B; not more than 3% Fe; and the balance Ni and inevitable impurities, to prepare the exhaust valve shape, and then by performing solution treatment at a temperature of 1,000-1,200°C and aging treatment at a temperature of 700-950°C. COPYRIGHT: (C)2006,JPO&NCIPI

8. 发明专利

JP2005320612A Thin steel strip for metallic strip ring of belt in continuously variable transmission, and manufacturing method therefor 审中-公开
标题翻译：连续可变传动带钢金属条带钢薄钢带及其制造方法
公开(公告)号：JP2005320612A
公开(公告)日：2005-11-17
申请号：JP2004141716
申请日：2004-05-11
申请人： Daido Steel Co Ltd , 大同特殊鋼株式会社
发明人： TAKABAYASHI HIROYUKI , UEDA SHIGENORI , SHIMIZU TETSUYA
IPC分类号： F16G5/16 , C21D9/46 , C22C38/00 , C22C38/44 , C22C38/54
摘要： PROBLEM TO BE SOLVED: To provide a high-strength thin steel strip for a metallic strip ring of a belt in a continuously variable transmission, which has higher fatigue resistance than 18Ni maraging steel, superior mechanical properties, adequate corrosion resistance, a low cost, and adequate nitrided characteristics.
SOLUTION: The thin steel strip for the metallic strip ring of the belt in the continuously variable transmission has a composition comprising, by wt.%, 0.05-0.15% C, less than 1.0% Si, 0.2-1.5% Mn, 4.0-5.0% Ni, 15.0-17.0% Cr, 2.5-3.5% Mo+1/2W, 0.5% or less Cu, 0.05-0.15% N, 0.0100% or less O, 0.01% or less Al, 0.05% or less Ti, 0.025% or less P, 0.010% or less S and the balance substantially Fe.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了提供一种无级变速器中用于带的金属带环的高强度薄钢带，其具有比18Ni马氏体时效钢更高的抗疲劳性，优异的机械性能，足够的耐腐蚀性，成本低，氮化特性充分。解决方案：用于无级变速器中的带的金属带环的薄钢带具有以重量％计含有0.05-0.15％C，小于1.0％的Si，0.2-1.5％的Mn， 4.0-5.0％Ni，15.0-17.0％Cr，2.5-3.5％Mo + 1 / 2W，0.5％以下Cu，0.05-0.15％N，0.0100％以下O，0.01％以下Al，0.05％以下 Ti，0.025％以下P，0.010％以下S，余量基本上为Fe。版权所有（C）2006，JPO＆NCIPI

9. 发明专利

JP2005320611A Thin steel strip superior in strength, fatigue strength, corrosion resistance and abrasion resistance, and manufacturing method therefor 有权
标题翻译：薄钢筋强度，耐疲劳强度，耐腐蚀和耐磨性及其制造方法
公开(公告)号：JP2005320611A
公开(公告)日：2005-11-17
申请号：JP2004141715
申请日：2004-05-11
申请人： Daido Steel Co Ltd , 大同特殊鋼株式会社
发明人： TAKABAYASHI HIROYUKI , UEDA SHIGENORI , SHIMIZU TETSUYA
IPC分类号： C21D9/46 , C21D1/06 , C22C38/00 , C22C38/50 , C22C38/54
摘要： PROBLEM TO BE SOLVED: To provide a thin steel strip which has higher fatigue resistance than 18Ni maraging steel, superior mechanical properties, a low cost, adequate nitrided characteristics, and superior strength, fatigue strength, corrosion resistance and abrasion resistance.
SOLUTION: The thin steel strip has a composition comprising, by wt.%, 0.05-0.15% C, less than 1.0% Si, 0.2-1.5% Mn, 4.0-5.0% Ni, 15.0-17.0% Cr, 2.5-3.5% Mo+1/2W, 0.5% or less Cu, 0.05-0.15% N, 0.0100% or less O, 0.01% or less Al, 0.05% or less Ti, 0.025% or less P, 0.010% or less S and the balance substantially Fe.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供具有比18Ni马氏体时效钢更高的抗疲劳性，优异的机械性能，低成本，充分的氮化特性，优异的强度，疲劳强度，耐腐蚀性和耐磨性的薄钢带。解决方案：薄钢带具有以重量％计含有0.05-0.15％C，小于1.0％Si，0.2-1.5％Mn，4.0-5.0％Ni，15.0-17.0％Cr，2.5％ -3.5％Mo + 1 / 2W，0.5％以下Cu，0.05〜0.15％N，0.0100％以下O，0.01％以下Al，0.05％以下Ti，0.025％以下P，0.010％以下S 余额基本上是Fe。版权所有（C）2006，JPO＆NCIPI

10. 发明专利

JP2005320606A Austenitic steel casting and its production method 有权
标题翻译：奥氏体铸钢及其生产方法
公开(公告)号：JP2005320606A
公开(公告)日：2005-11-17
申请号：JP2004141161
申请日：2004-05-11
申请人： Daido Castings:Kk , Daido Steel Co Ltd , 大同特殊鋼株式会社 , 株式会社大同キャスティングス
发明人： UEDA SHIGENORI , ABE NAOHIRO
IPC分类号： B22D31/00 , C21D6/00 , C21D7/06 , C22C38/00
摘要： PROBLEM TO BE SOLVED: To provide an austenitic steel casting having satisfactory machinability, and to provide its production method.
SOLUTION: In the austenitic steel casting, the matrix phase is composed of an austenite phase composed essentially of Fe-Ni-Cr. It is characterized in that the hardness of the surface layer in the face freed from scale is ≤350 HV and/or the thickness of the work hardened layer in the surface layer of the face freed from scale is ≤0.05 mm (inclusive of zero).
COPYRIGHT: (C)2006,JPO&NCIPI

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