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1. 发明专利

JP2004035974A PRECIPITATION STRENGTHENING TYPE Co-Ni-BASED HEAT RESISTANT ALLOY AND MANUFACTURING METHOD THEREFOR 有权
公开(公告)号：JP2004035974A
公开(公告)日：2004-02-05
申请号：JP2002197142
申请日：2002-07-05
申请人： Daido Steel Co Ltd , Nhk Spring Co Ltd , Tohoku Nippatsu Co Ltd , 大同特殊鋼株式会社 , 日本発条株式会社 , 東北日発株式会社
发明人： CHIBA MASAHIKO , TAKEDA SHIRO , AYADA TOMOHIKO , SATO SHIGEMI , UEDA SHIGENORI , NODA TOSHIHARU
IPC分类号： F01D5/28 , C22C19/00 , C22C19/05 , C22C19/07 , C22C30/00 , C22F1/00 , C22F1/10 , F02C7/00
CPC分类号： C22C30/00 , C22C19/055 , C22C19/056 , C22C19/07 , C22F1/10
摘要： PROBLEM TO BE SOLVED: To provide a precipitation strengthening type Co-Ni-based heat resistant alloy, to be more specific, the precipitation strengthening type Co-Ni-based heat resistant alloy which has Co
3 Mo or Co
7 Mo
6 precipitated in an interface between a fine twin structure and a parent phase, and is suitable for a spring, a bolt or the like used in a site exposed to a high temperature such as an engine exhaust system and a perimeter of a gas turbine, and to provide a manufacturing method therefor.
SOLUTION: This alloy comprises, by wt.%, 0.05% or less C, 0.5% or less Si, 1.0% or less Mn, 25-45% Ni, 13-22% Cr, 10-18% of Mo+1/2W, 0.1-5.0% Nb, 0.1-5.0% Fe, further one or more elements of 0.007-0.10% REM, 0.001-0.010% B, 0.0007-0.010% Mg, and 0.001-0.20% Zr, and 0.1-3.0% Ti as needed, and the balance Co with unavoidable impurities, and has a structure in which Co
3 Mo or Co
7 Mo
6 is precipitated in the interface between the fine twin structure and the parent phase.
COPYRIGHT: (C)2004,JPO

2. 发明专利

JP2002097537A CO-NI BASED HEAT RESISTANT ALLOY AND MANUFACTURING METHOD 失效
公开(公告)号：JP2002097537A
公开(公告)日：2002-04-02
申请号：JP2000282868
申请日：2000-09-19
申请人： NHK SPRING CO LTD , TOHOKU NIPPATSU CO LTD , DAIDO STEEL CO LTD
发明人： CHIBA MASAHIKO , TAKEDA SHIRO , SATO SHIGEMI , UEDA SHIGENORI , NODA TOSHIHARU , OKABE MICHIO
IPC分类号： C22C19/07 , C22C30/00 , C22F1/00 , C22F1/10
摘要： PROBLEM TO BE SOLVED: To provide a heat resistant alloy which has higher strength than a conventionally used Ni-based super heat-resistant alloy, and keeps the strength even after use at high temperatures for a long time, and a manufacturing method therefor. SOLUTION: This Co-Ni based heat resistant alloy includes 0.05% or less C, 0.5% or less Si, 1.0% or less Mn, 25-45% Ni, 13 to less than 18% Cr, 7-20% Mo+1/2W in one or two kinds of Mo and W, 0.1-3.0% Ti, 0.1-5.0% Nb, 0.1-5.0% Fe, by weight %, and Co and inevitable impurities as the balance.

3. 发明专利

JP2010001502A β TYPE TITANIUM ALLOY 有权
标题翻译： β型钛合金
公开(公告)号：JP2010001502A
公开(公告)日：2010-01-07
申请号：JP2008158811
申请日：2008-06-18
申请人： Daido Steel Co Ltd , 大同特殊鋼株式会社
发明人： MIYAWAKI HIROSHI , NODA TOSHIHARU
IPC分类号： C22C14/00 , A61L27/00
摘要： PROBLEM TO BE SOLVED: To provide a β type titanium alloy which achieves a low elastic modulus without using expensive Ta having a high melting point, has a mechanical strength that is equal to or higher than that of a conventional material, and has superior biocompatibility.
SOLUTION: The β type titanium alloy includes, by mass%, 10.5 or more but less than 25% Nb, 0.1 to 10% Zr, and one or more of 0.1 to 10% Mo, 0.1 to 8% Cr, 0.1 to 5.8% Mn, 0.1 to 4% Fe, while satisfying the expression of X=Mo+1.25Cr+1.7Mn+2.5Fe: 4 to 10 and the expression of (Nb/3.5)+X: 11 to 13, wherein the symbols of elements in the expressions represent a content (mass%) of each element. The alloy obtains an elastic modulus of 80 GPa or less.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了提供在不使用具有高熔点的昂贵的Ta的情况下实现低弹性模量的β型钛合金，其机械强度等于或高于常规材料的机械强度，并且具有优良的生物相容性。＆lt; P＆gt;解决方案：β型钛合金以质量％计含有10.5，以上且小于25％的Nb，0.1〜10％的Zr，以及0.1〜10％的Mo，0.1〜8％的Cr，0.1 至5.8％Mn，0.1〜4％Fe，同时满足X = Mo + 1.25Cr + 1.7Mn + 2.5Fe：4〜10的表达式，（Nb / 3.5）+ X：11〜13的表达式，其中，表达式中的元素的符号表示每个元素的内容（质量％）。合金的弹性模量为80GPa以下。版权所有（C）2010，JPO＆INPIT

4. 发明专利

JP2009270163A Titanium alloy 审中-公开
标题翻译：钛合金
公开(公告)号：JP2009270163A
公开(公告)日：2009-11-19
申请号：JP2008121974
申请日：2008-05-08
申请人： Daido Steel Co Ltd , 大同特殊鋼株式会社
发明人： OGAWA MICHIHARU , NODA TOSHIHARU , IKEDA KATSUHIKO , UEDA MASATO
IPC分类号： C22C14/00 , C22F1/00 , C22F1/18
摘要： PROBLEM TO BE SOLVED: To provide a titanium alloy in which the reduction of elasticity and cost reduction can be achieved compared with the conventional one.
SOLUTION: The titanium alloy comprises, by mass, 5 to 15% Cr, 1 to 8% Al and 0.01 to 0.5% O, and the balance Ti with inevitable impurities, and whose Young's modulus after solution treatment is ≤85 GPa. The titanium alloy may comprise at least one element selected from the group consisting of B and Si in 0.01 to 0.5 mass%. Alternatively, the alloy may comprise at least one element selected from the group consisting of C and N in 0.01 to 1.0 mass% in total with the O. Alternatively, the alloy may comprise at least one element selected from the group consisting of Sn and Zr in 1 to 8 mass% in total with the Al. Further alternatively, the alloy may contain 0.01 to 2.0 mass% of Fe.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供与传统的钛合金相比可以实现弹性降低和成本降低的钛合金。解决方案：钛合金以质量计含有5〜15％的Cr，1〜8％的Al和0.01〜0.5％的O，余量为Ti和不可避免的杂质，固溶处理后的杨氏模量≤85GPa 。钛合金可以含有0.01〜0.5质量％的选自B和Si中的至少一种元素。或者，合金可以包括选自由C和N组成的组中的至少一种元素，其总数为0.01至1.0质量％。或者，合金可以包括选自Sn和Zr中的至少一种元素总共为1〜8质量％。或者，该合金可以含有0.01〜2.0质量％的Fe。版权所有（C）2010，JPO＆INPIT

5. 发明专利

JP2009114513A TiAl-BASED ALLOY 审中-公开
标题翻译： TiAl基合金
公开(公告)号：JP2009114513A
公开(公告)日：2009-05-28
申请号：JP2007290405
申请日：2007-11-08
申请人： Daido Steel Co Ltd , 大同特殊鋼株式会社
发明人： KOYANAGI SADAHIKO , NODA TOSHIHARU
IPC分类号： C22C14/00 , C22F1/00 , C22F1/18
摘要： PROBLEM TO BE SOLVED: To provide a TiAl-based alloy which is superior in hot workability and specific strength, and is inexpensive.
SOLUTION: The TiAl-based alloy includes 30 to 45 mol% Al, 0.1 to 10 mol% Fe and the balance Ti with unavoidable impurities. The TiAl-based alloy further preferably contains at least one element among V, Cr and Mn in a total amount of 0.5 mol% to 5.0 mol%. In addition, the TiAl-based alloy further preferably contains at least one element among Nb, Mo, Ta and W in a total amount of 0.5 mol% to 5.0 mol%.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供热加工性和比强度优异的TiAl基合金，成本低廉。解决方案：TiAl基合金包含30至45mol％的Al，0.1至10mol％的Fe，余量为Ti和不可避免的杂质。 TiAl系合金还优选含有V，Cr，Mn中的至少一种元素，总量为0.5摩尔％〜5.0摩尔％。此外，TiAl系合金还优选含有Nb，Mo，Ta和W中的至少一种元素，总量为0.5摩尔％至5.0摩尔％。版权所有（C）2009，JPO＆INPIT

6. 发明专利

JP2007146287A High-nitrogen austenitic stainless steel 有权
标题翻译：高氮奥氏体不锈钢
公开(公告)号：JP2007146287A
公开(公告)日：2007-06-14
申请号：JP2006280918
申请日：2006-10-16
申请人： Daido Steel Co Ltd , 大同特殊鋼株式会社
发明人： NARITA SHUJI , HAMANO SHUJI , SHIMIZU TETSUYA , NODA TOSHIHARU
IPC分类号： C22C38/00 , A61K6/04 , C21D6/00 , C22C38/58 , C22C38/60
CPC分类号： C22C38/58 , C22C38/001 , C22C38/002 , C22C38/02 , C22C38/42 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/52 , C22C38/60
摘要： PROBLEM TO BE SOLVED: To provide a high-nitrogen austenitic stainless steel having both seawater corrosion resistance equivalent to that of an austenitic super stainless steel and high strength equivalent to that of a two-phase stainless steel.
SOLUTION: The high-nitrogen austenitic stainless steel comprises 0.005 to 0.25 mass% C, 15.0 to 35.0 mass% Cr, 0.2 to 10.0 mass% Mn, 0.05 to 8.0 mass% Mo, 0.01 to 4.0 mass% Cu, 0.01 to 5.0 mass% Ni, more than 0.8 to 1.8 mass% N, 2.0 mass% or less Si, 0.03 mass% or less P, 0.05 mass% or less S, 0.030 mass% or less Al, 0.020 mass% or less O, and the balance substantially being Fe and unavoidable impurities; and has PRE value of 5 or larger, where PRE=(Cr+3.3Mo+16N)/Mn (mass%), and CRE value of 27 or larger, where CRE=Cr+1.5Mo+2N+Cu (mass%).
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供具有相当于奥氏体超不锈钢的耐海水腐蚀性和与两相不锈钢相当的强度的高氮奥氏体不锈钢。解决方案：高氮奥氏体不锈钢含有0.005〜0.25质量％的Cr，15.0〜35.0质量％的Cr，0.2〜10.0质量％的Mn，0.05〜8.0质量％的Mo，0.01〜4.0质量％的Cu，0.01〜 5.0质量％Ni，大于0.8〜1.8质量％N，2.0质量％以下Si，0.03质量％以下P，0.05质量％以下S，0.030质量％以下Al，0.020质量％以下O，以及余量基本上是Fe和不可避免的杂质; PRE =（Cr + 3.3Mo + 16N）/ Mn（质量％），CRE值为27以上的PRE值为5以上，其中CRE = Cr + 1.5Mo + 2N + Cu（质量％）。版权所有（C）2007，JPO＆INPIT

7. 发明专利

JP2004217965A Metal wire rod for producing molten metal 审中-公开
公开(公告)号：JP2004217965A
公开(公告)日：2004-08-05
申请号：JP2003004314
申请日：2003-01-10
申请人： Daido Steel Co Ltd , 大同特殊鋼株式会社
发明人： NAKAJOYA MAKOTO , KARIYA KEN , SUZUKI KOJI , HIYAMIZU TAKAO , NODA TOSHIHARU
IPC分类号： B23K35/02 , B23K35/28 , B23K35/30 , B23K35/32 , C23C4/08 , C23C8/12
摘要： PROBLEM TO BE SOLVED: To provide such a metal wire rod for producing a molten metal as to form a stable arc when used for welding or thermal spraying.
SOLUTION: The metal wire rod 301 for producing the molten metal shall produce the molten metal containing any of Fe, Al, Mg, Ni, Co, Be, Ta and Ni-Ti as main components, when sequentially heated and melted from a tip side. The metal wire rod has a part including at least the surface of the wire rod, which is constituted by any metal of Fe, Al, Mg, Ni, Co, Be, Ta and Ni-Ti as a main component; and an oxygen-concentrated layer containing a higher concentration of oxygen than that in an inner layer part, which is formed on the surface layer part including the surface of the wire rod, so as to include a protective oxide layer obtained by positive oxidation for the surface of the metal.
COPYRIGHT: (C)2004,JPO&NCIPI

8. 发明专利

JP2004141934A Ferritic stainless steel welding wire 审中-公开
公开(公告)号：JP2004141934A
公开(公告)日：2004-05-20
申请号：JP2002310349
申请日：2002-10-24
申请人： Daido Steel Co Ltd , 大同特殊鋼株式会社
发明人： INUI KEIGO , NAMIKAWA HIROTAKA , NODA TOSHIHARU
IPC分类号： B23K35/30
摘要： PROBLEM TO BE SOLVED: To provide a ferritic stainless steel welding wire which is allowed to reduce the content of Cr as a high-cost additional element and, nevertheless, has a resistance to oxidation equal to that of the conventional ferric stainless steel welding wire having high Cr content.
SOLUTION: The ferritic stainless steel welding wire, in wt.%, consists of C ≤0.015%, Si 0.9∼1.5%, Mn ≤1.0%, P ≤0.030%, S ≤0.010%, Cr 9.0∼13.0%, N ≤0.02%, Ca ≤0.002%, Nb 0.10∼0.30%, Ti ≤0.20%, Al ≤0.20%, 20×C%≤Nb+Ti+Al and the remainder substantially comprising Fe.
COPYRIGHT: (C)2004,JPO

9. 发明专利

JP2007254884A Ferritic stainless steel cast iron, process for producing cast component using the same, and cast component 审中-公开
标题翻译：铁质不锈钢铸铁，生产使用其的铸件组件的方法和铸件组件
公开(公告)号：JP2007254884A
公开(公告)日：2007-10-04
申请号：JP2007042778
申请日：2007-02-22
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 , NODA TOSHIHARU
IPC分类号： C22C38/00 , B22C9/24 , B22D18/06 , C22C38/38 , C22C38/60
摘要： PROBLEM TO BE SOLVED: To provide a ferritic stainless steel cast iron excellent in resistance to sulfuric acid dew corrosion.
SOLUTION: The ferritic stainless steel cast iron includes: Fe as a main component; C: 0.15 to 0.45 mass%; Si: 1.50 to 3.50 mass%; Mn: 0.10 to 3.00 mass%; Cr: 8.0 to 30.0 mass%; one of Nb and V, or both of Nb and V in total: 0.1 to 5.0 mass%; and Cu: 0.02 to 2.00 mass%.
COPYRIGHT: (C)2008,JPO&INPIT

10. 发明专利

JP2006118048A Exhaust system part for engine with excellent thermal fatigue resistance 有权
标题翻译：具有优异耐热疲劳性能的发动机排气系统部件
公开(公告)号：JP2006118048A
公开(公告)日：2006-05-11
申请号：JP2005317231
申请日：2005-10-31
申请人： Daido Steel Co Ltd , 大同特殊鋼株式会社
发明人： UEDA SHIGENORI , HAMANO SHUJI , NODA TOSHIHARU
IPC分类号： C22C38/00 , C21D6/00 , C22C19/05 , C22C38/48 , C22C38/60 , F01N13/16
摘要： PROBLEM TO BE SOLVED: To provide high durability exhaust system parts, such as an exhaust gas manifold and a turbo housing for an automotive engine, which can be suitably used as parts repeatedly heated to a temperature as high as ≥900°C and cooled.
SOLUTION: As a material, heat resistant cast steel having the following characteristics is used: the steel has an alloy composition consisting of, by mass, 0.2 to 1.0% C, 8.0 to 45.0% Ni, 15.0 to 30.0% Cr, ≤10% W, 0.5 to 3.0% Nb and the balance Fe with inevitable impurities and satisfying [C-0.13Nb]=0.05 to 0.95%; an MC-type carbide and an M
23 C
6 -type carbide are dispersedly present in a cast structure in amounts, by atom, of 0.5 to 3% and 0.5 to 10%, respectively; a matrix phase consists of an austenite phase composed mainly of Fe-Ni-Cr; an average thermal expansion coefficient in a temperature region between room temperature and 1,050°C is ≤20.0×10
-6 ; and a tensile strength at ≤1,050°C is ≥50 MPa.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了提供高耐用性排气系统部件，例如用于汽车发动机的排气歧管和涡轮壳体，其可以被适当地用作被重复加热到高达≥900℃的温度的部件并冷却。解决方案：作为材料，使用具有以下特性的耐热铸钢：该钢具有以质量计0.2〜1.0％，8.0〜45.0％Ni，15.0〜30.0％Cr， ≤10％W，0.5〜3.0％Nb，余量为Fe，不可避免的杂质，[C-0.13Nb] = 0.05〜0.95％一种MC型碳化物和一种M“SB”C“SB”型碳化物以0.5-3％和0.5-10％的原子分散地存在于铸塑结构中％，分别; 基体相由主要由Fe-Ni-Cr组成的奥氏体相组成; 在室温和1050℃之间的温度区域中的平均热膨胀系数为≤20.0×10 -6 ; ≤150℃的拉伸强度≥50MPa。版权所有（C）2006，JPO＆NCIPI

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