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1. 发明专利

JP2002339047A CORROSION-RESISTANT STEEL 失效
公开(公告)号：JP2002339047A
公开(公告)日：2002-11-27
申请号：JP2001147026
申请日：2001-05-16
申请人： ISHIDA KIYOHITO , NAT INST OF ADV IND & TECHNOL , TOHOKU STEEL , DAIDO STEEL CO LTD
发明人： ISHIDA KIYOHITO , OIKAWA MASANARI , EHATA TAKASHI , ISHIKAWA KOICHI , NODA TOSHIHARU , SHIMIZU TETSUYA
IPC分类号： F16C3/02 , C21D8/06 , C22C38/00 , C22C38/42 , C22C38/50 , C22C38/60
摘要： PROBLEM TO BE SOLVED: To provide inexpensive steel which has excellent machinability, has sufficient corrosion resistance and weather resistance, in an indoor environment, requires no plating and is suitable for a printer shaft. SOLUTION: The corrosion resistance steel has a composition containing 0.005 to 0.200% C,

2. 发明专利

JP2008045177A High strength high elasticity stainless steel and stainless steel wire 有权
标题翻译：高强度高弹性不锈钢和不锈钢丝
公开(公告)号：JP2008045177A
公开(公告)日：2008-02-28
申请号：JP2006223056
申请日：2006-08-18
申请人： Daido Steel Co Ltd , Nippon Seisen Co Ltd , 大同特殊鋼株式会社 , 日本精線株式会社
发明人： ISHIKAWA KOICHI , SHIMIZU TETSUYA , TANIMOTO YOSHINORI , AKIZUKI TAKAYUKI
IPC分类号： C22C38/00 , B21C1/00 , C21D8/06 , C22C38/46 , C22C38/52
摘要： PROBLEM TO BE SOLVED: To provide a high-strength high-elasticity stainless steel having excellent strength, elastic modulus, twisting properties, settling resistance and corrosion resistance, and to provide a stainless steel wire obtainable by subjecting the same to wire drawing.
SOLUTION: The high-strength high-elasticity type stainless steel has a comprises, by mass, 0.08 to 0.35% C, 0.20 to 1.00% Si, 0.50 to 1.50% Mn, 7.0 to 11.0% Ni, 12.0 to 22.0% Cr, 0.002 to 0.08% N and 2.0 to 8.0% V, and the balance Fe with inevitable impurities, wherein second phase grains including V are dispersed into a matrix. The stainless steel wire is obtained by using the same.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供具有优异的强度，弹性模量，扭转性能，耐沉降性和耐腐蚀性的高强度高弹性不锈钢，并且提供一种不锈钢丝，其可通过对其进行拉丝。解决方案：高强度高弹性不锈钢的质量分数为C：0.08〜0.35％，Si：0.20〜1.00％，Mn：0.50〜1.50％，Ni：7.0〜11.0％，12.0〜22.0％ Cr，0.002〜0.08％N，2.0〜8.0％V，余量为Fe与不可避免的杂质，其中包含V的第二相晶粒分散在基体中。通过使用不锈钢丝来获得。版权所有（C）2008，JPO＆INPIT

3. 发明专利

JP2007238981A Ferritic free-cutting stainless steel 有权
标题翻译：自由切割不锈钢
公开(公告)号：JP2007238981A
公开(公告)日：2007-09-20
申请号：JP2006060497
申请日：2006-03-07
申请人： Daido Steel Co Ltd , 大同特殊鋼株式会社
发明人： ISHIKAWA KOICHI , SHIMIZU TETSUYA
IPC分类号： C22C38/00 , C22C38/60
摘要： PROBLEM TO BE SOLVED: To provide a ferritic free-cutting stainless steel having satisfactory machinability, corrosion resistance, hot workability, cold workability and toughness.
SOLUTION: The stainless steel has a composition containing, by weight, 0.005 to 0.05% C, 0.10 to 0.50% Si, 0.05 to 0.50% Mn, 0.005 to 0.10% P, 0.20 to 0.35% S, 0.01 to 2.0% Cu, 0.01 to 2.0% Ni, 17.0 to 25.0% Cr, 0.01 to 1.0% Mo, 0.03 to 0.30% Pb, 0.01 to 0.10% Te, 0.003 to 0.010% B, 0.005 to 0.030% O and ≤0.030% N, and the balance substantially Fe with inevitable impurities, satisfying 0.30≤Mn/S≤1.50, 50≤Cr/Mn≤125, 0.04≤Te/S and 10≤S/O≤50, comprising ≥20% Cr as a constituting metallic element, and in which sulfides having a diameter of the equivalent circle of ≥2.0 μm and an acicular ratio of ≤10 are also present in ≥0.50% by area ratio.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供具有令人满意的机械加工性，耐腐蚀性，热加工性，冷加工性和韧性的铁素体自由切削不锈钢。解决方案：不锈钢具有以下成分：含有0.005〜0.05％的C，0.10〜0.50％的Si，0.05〜0.50％的Mn，0.005〜0.10％的P，0.20〜0.35％的S，0.01〜2.0％ Cu，0.01〜2.0％Ni，17.0〜25.0％Cr，0.01〜1.0％Mo，0.03〜0.30％Pb，0.01〜0.10％Te，0.003〜0.010％B，0.005〜0.030％O和≤0.030％N，余量基本为Fe，不可避免的杂质，满足0.30≤Mn/S≤1.50,50≤Cr/Mn≤125,0.04≤Te/ S和10≤S/O≤50，包含≥20％的Cr作为构成金属元素，其中直径为≥2.0μm的直径和≤10的针状比的硫化物也以≥0.50面积比存在。版权所有（C）2007，JPO＆INPIT

4. 发明专利

JP2006316310A Material for component in electronic equipment 审中-公开
标题翻译：电子设备中组件的材料
公开(公告)号：JP2006316310A
公开(公告)日：2006-11-24
申请号：JP2005139309
申请日：2005-05-12
申请人： Daido Steel Co Ltd , 大同特殊鋼株式会社
发明人： ISHIKAWA KOICHI , SHIMIZU TETSUYA
IPC分类号： C22C38/00 , C21D8/06 , C22C38/60
CPC分类号： Y02P10/212
摘要： PROBLEM TO BE SOLVED: To provide a material for a component in electronic equipment, which has improved corrosion resistance and outgas resistance, and simultaneously has sufficient machinability. SOLUTION: The material for the component in electronic equipment is made from ferritic free-cutting stainless steel comprising, by wt.%, 0.005-0.10% C, 0.01-2.0% Si, 0.10-1.5% Mn, 0.010-0.10% P, 0.05-0.50% S, 0.05-2.0% Cu, 0.05-2.0% Ni, 16.0-25.0% Cr, 0.01-4.0% Mo, 2.0% or less Ti, 0.03% or less O, 0.05% or less N, 0.001-0.100% Al, and the balance Fe with unavoidable impurities. The stainless steel also has a content ratio of Mn to S controlled to 3.0 or less, and a content ratio of Mn to Cr controlled to 0.1 or less. The manufacturing method includes heat-treating the stainless steel having the above composition to dissolve Cr into sulfides. Thereby, the sulfides existing in the steel contain Cr in an amount of 5.0% or more. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供具有改善的耐腐蚀性和耐气体性的电子设备中的部件的材料，并且同时具有足够的机械加工性。解决方案：电子设备中组件的材料由铁素体自由切削不锈钢制成，重量％为0.005-0.10％C，0.01-2.0％Si，0.10-1.5％Mn，0.010-0.10 ％P，0.05-0.50％S，0.05-2.0％Cu，0.05-2.0％Ni，16.0-25.0％Cr，0.01-4.0％Mo，2.0％以下Ti，0.03％以下O，0.05％以下N ，0.001-0.100％Al，余量为不可避免杂质的Fe。另外，不锈钢的Mn〜S的含有比控制在3.0以下，Mn与Cr的含有率控制在0.1以下。该制造方法包括对具有上述组成的不锈钢进行热处理以将Cr溶解成硫化物。因此，存在于钢中的硫化物含有5.0％以上的Cr。版权所有（C）2007，JPO＆INPIT

5. 发明专利

JP2003247049A AUSTENITE-CONTAINING FREE CUTTING STAINLESS STEEL 审中-公开
公开(公告)号：JP2003247049A
公开(公告)日：2003-09-05
申请号：JP2002043761
申请日：2002-02-20
申请人： DAIDO STEEL CO LTD
发明人： ISHIKAWA KOICHI , NODA TOSHIHARU , SHIMIZU TETSUYA
IPC分类号： C22C38/00 , C22C38/60
摘要： PROBLEM TO BE SOLVED: To provide austenite-containing free cutting stainless steel which has hot workability and cold workability not inferior to those of the conventional stainless steel in addition to corrosion resistance, and remarkably improved machinability, and has remarkably improved outgas resistance. SOLUTION: The austenite-containing free cutting stainless steel contains, by mass, 2 to 30% Ni, 12 to 30% Cr and 0.02 to 0.4% C. Then, provided that respective mass contents of Ti, Zr, C, S and Se are defined as WTi, WZr, WC, WS and WSe, WTi+0.52WZr is 0.03 to 3 mass%, At least either of 0.01 to 0.7 mass% S and 0.01 to 0.5 mass% Se is contained, and, 0.4≤4×WC/(WTi+0.52×WZr)≤1.2 is satisfied. In the case drill cuttability is seriously considered, 0.5≤1.5×(WS+0.40WSe)/(WTi+0.52×WZr)≤1.2 is set, and in the case hot workability is seriously considered, 0.2≤1.5×(WS+0.40WSe)/(WTi+0.52×WZr)≤0.5 is set. COPYRIGHT: (C)2003,JPO

6. 发明专利

JP2008115424A Austenitic free-cutting stainless steel 有权
标题翻译：奥氏体自由切削不锈钢
公开(公告)号：JP2008115424A
公开(公告)日：2008-05-22
申请号：JP2006299583
申请日：2006-11-02
申请人： Daido Steel Co Ltd , 大同特殊鋼株式会社
发明人： ISHIKAWA KOICHI , SHIMIZU TETSUYA
IPC分类号： C22C38/00 , C22C38/60
摘要： PROBLEM TO BE SOLVED: To provide an austenitic free-cutting stainless steel which acquires improved machinability by having MnS with a necessary size formed therein while having the quantity of S to be added controlled to be small, and can satisfactorily solve a problem that anisotropy occurs in characteristics of the steel, by making MnS extended in a rolling direction in a rolling step.
SOLUTION: The austenitic stainless steel has a composition comprising, by mass, 0.01 to 0.20% C, 0.10 to 2.00% Si, 0.80 to 2.50% Mn, 0.10% or less P, 0.10 to 0.40% S, 5.0 to 15.0% Ni, 15.0 to 25.0% Cr, 0.01 to 0.10% Te, 0.003 to 0.010% B, 0.006 to 0.030% O, 0.050% or less N, and the balance Fe with unavoidable impurities, while satisfying the following expressions (1) to (3): Expression (1): 3.0≤[Mn]/[S]≤15.0; Expression (2): 0.10≤[Te]/[S]≤0.50; and Expression (3): 10≤[S]/[O]≤40.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种奥氏体切削不锈钢，其通过在其中添加必要的尺寸的MnS来获得改进的机械加工性，同时将S的量控制在较小的范围内，并且可以令人满意地解决问题通过在轧制步骤中使轧制方向上的MnS延伸，在钢的特性中发生各向异性。＆lt;解决方案＆gt;奥氏体系不锈钢的组成为：质量分数为0.01〜0.20％，Si：0.10〜2.00％，Mn：0.80〜2.50％，P：0.10％以下，S：0.10〜0.40％，5.0〜15.0 ％Ni，15.0〜25.0％Cr，0.01〜0.10％Te，0.003〜0.010％B，0.006〜0.030％O，0.050％以下N，余量为Fe，不可避免的杂质，同时满足下列表达式（1）〜（3）：式（1）：3.0≤[Mn] / [S]≤15.0; 表达式（2）：0.10≤[Te] / [S]≤0.50; 和表达式（3）：10≤[S] / [O]≤40。版权所有（C）2008，JPO＆INPIT

7. 发明专利

JP2008106306A Ferritic free-cutting stainless steel 审中-公开
标题翻译：自由切割不锈钢
公开(公告)号：JP2008106306A
公开(公告)日：2008-05-08
申请号：JP2006290290
申请日：2006-10-25
申请人： Daido Steel Co Ltd , 大同特殊鋼株式会社
发明人： ISHIKAWA KOICHI , SHIMIZU TETSUYA
IPC分类号： C22C38/00 , C22C38/60
摘要： PROBLEM TO BE SOLVED: To provide ferritic free-cutting stainless steel having excellent machinability and corrosion resistance.
SOLUTION: The ferritic free-cutting stainless steel comprises, by weight, 0.005 to 0.020% C, 0.10 to 0.50% Si, 0.05 to 0.50% Mn, 0.005 to 0.10% P, 0.20 to 0.35% S, 17.0 to 25.0% Cr, 0.03 to 0.30% Pb, 0.01 to 0.10% Te, 0.005 to 0.020% O, 0.005 to 0.030% N, 0.03 to 0.50% Nb, 0.001 to 0.100% Al, and the like, and the balance substantially Fe and satisfies the following inequalities: [Nb]≥4×([C]+[N]); [Te ]/[S]≥0.5; and 10≤[S]/[O]≤50, wherein the total quantity of sulfides having the circle-equivalent diameter of ≥2.0 μm and an aspect ratio of ≤10 is ≥0.50% by area ratio and Vickers hardness is ≤160.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供具有优异的机械加工性和耐腐蚀性的铁素体自由切削不锈钢。解决方案：铁素体自由切削不锈钢的重量含有C：0.005〜0.020％，Si：0.10〜0.50％，Mn：0.05〜0.50％，P：0.005〜0.10％，S：0.20〜0.35％，17.0〜25.0 ％Cr，0.03〜0.30％Pb，0.01〜0.10％Te，0.005〜0.020％O，0.005〜0.030％N，0.03〜0.50％Nb，0.001〜0.100％Al等，余量基本为Fe，满足以下不等式：[Nb]≥4×（[C] + [N]）; [Te] / [S]≥0.5; 10≤[S] / [O]≤50，其中圆当量直径≥2.0μm，纵横比≤10的硫化物的总量为≥0.50面积比，维氏硬度≤160。版权所有（C）2008，JPO＆INPIT

8. 发明专利

JP2007131939A Ferritic free-cutting stainless steel 有权
标题翻译：自由切割不锈钢
公开(公告)号：JP2007131939A
公开(公告)日：2007-05-31
申请号：JP2005355278
申请日：2005-12-08
申请人： Daido Steel Co Ltd , 大同特殊鋼株式会社
发明人： ISHIKAWA KOICHI , OGAWA MICHIHARU , SHIMIZU TETSUYA
IPC分类号： C22C38/00 , C21D8/06 , C22C38/60
摘要： PROBLEM TO BE SOLVED: To provide a ferritic free-cutting stainless steel having satisfactory machinability and corrosion resistance.
SOLUTION: The ferritic free-cutting stainless steel has a composition comprising, by mass, 0.005 to 0.05% C, 0.10 to 2.0% Si, 0.05 to 0.6% Mn, 0.01 to 0.10% P, 0.30 to 0.60% S, 0.01 to 2.0% Cu, 0.01 to 2.0% Ni, 16.0 to 25.0% Cr, 0.01 to 4.0% Mo, 0.10 to 1.0% Ti, ≤0.015% O, ≤0.020% N and 0.010 to 0.100% Al, and the balance Fe with inevitable impurities, and satisfies inequalities (1) to (3): 0.08≤[Mn(%)]/[S(%)]≤1.66 (1), 0.50≤[Ti(%)]/[S(%)]≤1.5 (2), and [S(%)]/[C(%)]≥10.0 (3).
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供具有令人满意的切削性和耐腐蚀性的铁素体自由切削不锈钢。解决方案：铁素体自由切削不锈钢具有质量分数为0.005〜0.05％的Si，0.10〜2.0％的Si，0.05〜0.6％的Mn，0.01〜0.10％的P，0.30〜0.60％的S， 0.01〜2.0％的Cu，0.01〜2.0％的Ni，16.0〜25.0％的Cr，0.01〜4.0％的Mo，0.10〜1.0％的Ti，≤0.015％的O，≤0.020％的N和0.010〜0.100％的Al，余量的Fe 具有不可避免的杂质，满足不等式（1）〜（3）：0.08≤[Mn（％）] / [S（％）]≤1.66（1），0.50≤[Ti（％）] / [S（％ ]≤1.5（2）和[S（％）] / [C（％）]≥10.0（3）。版权所有（C）2007，JPO＆INPIT

9. 发明专利

JP2006152354A Free-cutting soft magnetic stainless steel 有权
标题翻译：自由切削软磁性不锈钢
公开(公告)号：JP2006152354A
公开(公告)日：2006-06-15
申请号：JP2004343109
申请日：2004-11-26
申请人： Daido Steel Co Ltd , Kiyohito Ishida , National Institute Of Advanced Industrial & Technology , Tohoku Tokushuko Kk , 大同特殊鋼株式会社 , 東北特殊鋼株式会社 , 独立行政法人産業技術総合研究所 , 清仁石田
发明人： ISHIDA KIYOHITO , OIKAWA MASANARI , EHATA TAKASHI , ISHIKAWA KOICHI , SHIMIZU TETSUYA
IPC分类号： C22C38/00 , C22C38/60 , H01F1/16
摘要： PROBLEM TO BE SOLVED: To provide a free-cutting soft magnetic stainless steel to which excellent machinability is imparted while having satisfactory magnetic properties and corrosion resistance. SOLUTION: The free-cutting soft magnetic stainless steel has a composition comprising, by mass, 0.02 to 0.15% C, 0.5 to 3.0% Si, ≤2.0% Mn, 0.1 to 0.5% S, 10 to 22% Cr, 0.01 to 4.0% Al and 0.5 to 1.5% Ti, and the balance Fe with inevitable impurities. COPYRIGHT: (C)2006,JPO&NCIPI

10. 发明专利

JP2010174334A Duplex stainless steel, and steel material and steel product using the same 有权
标题翻译：双相不锈钢，钢材和使用该钢的钢产品
公开(公告)号：JP2010174334A
公开(公告)日：2010-08-12
申请号：JP2009018536
申请日：2009-01-29
申请人： Daido Steel Co Ltd , Nippon Seisen Co Ltd , 大同特殊鋼株式会社 , 日本精線株式会社
发明人： UEDA SHIGENORI , ISHIKAWA KOICHI , KAWABATA NAOYUKI
IPC分类号： C22C38/00 , C21D8/06 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide a duplex stainless steel including a ferritic phase and a martensitic phase which can exhibit satisfactory corrosion resistance and strength while achieving the reduction of cost, and to provide a steel material and a steel product using the same.
SOLUTION: The duplex stainless steel has a composition containing, by mass, 0.080 to 0.120% C, 0.20 to 1.00% Si, 1.00 to 3.00% Mn, more than 1.00 to 3.00% Cu, 20.0 to 23.0% Cr, 0.50 to 1.00% Ni and at most 0.030% N, and in which [A] expressed by formula (1) satisfies 0.15≤[A]≤0.30, and also contains a ferritic phase and a martensitic phase, and in which the area ratio of the martensitic phase in the cross-sectional structure is 10 to 60%; wherein formula (1) is [A]=(1.4[Mn]+[Cu])/[Cr].
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供包括铁素体相和马氏体相的双相不锈钢，其可以显示出令人满意的耐腐蚀性和强度，同时实现成本的降低，并且提供钢材和使用其的钢产品。解决方案：双相不锈钢具有以质量计含有0.080至0.120％的C，0.20至1.00％的Si，1.00至3.00％的Mn，大于1.00至3.00％的Cu，20.0至23.0％的Cr，0.50 至1.00％Ni和至多0.030％N，其中由式（1）表示的[A]满足0.15≤[A]≤0.30，并且还含有铁素体相和马氏体相，其中，横截面结构中的马氏体相为10〜60％。其中式（1）为[A] =（1.4 [Mn] + [Cu]）/ [Cr]。版权所有（C）2010，JPO＆INPIT

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