专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JP2011115822A Method for manufacturing crankshaft 有权
标题翻译：制造起重机的方法
公开(公告)号：JP2011115822A
公开(公告)日：2011-06-16
申请号：JP2009276043
申请日：2009-12-04
申请人： Daido Steel Co Ltd , 大同特殊鋼株式会社
发明人： TAKADA KATSUNORI , HOBO MAKOTO , KATO SHINICHIRO
IPC分类号： B21K1/08 , C21D1/06 , C21D8/00 , C21D9/30 , C22C38/00 , C22C38/42 , C22C38/50 , C23C8/02 , C23C8/32 , F16C3/08
摘要： PROBLEM TO BE SOLVED: To provide a crankshaft manufacturing method for obtaining a crankshaft member having higher fatigue strength and excellent bend-straightening property as compared to a conventional crankshaft.
SOLUTION: The crankshaft manufacturing method for obtaining a crankshaft via a bend straightening step includes: a hot forging step for executing the rough forging of steel having the composition of the predetermined components at the temperature of ≥1,100°C; a machining step of giving a shape of the crankshaft by the machining; a surface rolling step of executing the cold rolling of a surface of a round corner part of the crankshaft shape; and a soft nitriding step for executing the soft nitriding treatment.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种曲轴制造方法，用于获得与常规曲轴相比具有较高疲劳强度和优异弯曲矫直性能的曲轴件。解决方案：通过弯曲矫直步骤获得曲轴的曲轴制造方法包括：热锻造步骤，用于在≥1,100℃的温度下执行具有预定部件组成的钢的粗锻; 通过加工给出曲轴的形状的加工步骤; 执行曲轴形状的圆角部的表面的冷轧的表面轧制工序; 以及用于执行软氮化处理的软氮化步骤。版权所有（C）2011，JPO＆INPIT

2. 发明专利

JP2009221590A Fracture split connecting rod, and non-heat treated steel used therefor 审中-公开
标题翻译：断裂连接杆及其使用的非热处理钢
公开(公告)号：JP2009221590A
公开(公告)日：2009-10-01
申请号：JP2008070641
申请日：2008-03-19
申请人： Daido Steel Co Ltd , Honda Motor Co Ltd , 大同特殊鋼株式会社 , 本田技研工業株式会社
发明人： ASAI TETSUYA , KOGURE RYOSUKE , SUGITA HIROSHI , HOBO MAKOTO , TAKADA KATSUNORI , NAKAJIMA TOMOYUKI , KANO TAKASHI , TSUDA MASASHI
IPC分类号： C22C38/00 , C22C38/14 , C22C38/60 , F16C7/02
CPC分类号： F16C9/045
摘要： PROBLEM TO BE SOLVED: To provide a fracture split connecting rod, wherein fracture splittability and machinability are satisfactory, and the forging finishing temperature capable of sufficiently securing hardness after forging is made low, thus variation in the proof stress of parts is reduced, and forging efficiency is satisfactory.
SOLUTION: In the composition of a non-heat treated steel serving as the constituting stock of the fracture split connecting rod 1, sufficient proof stress and fracture splittability are secured by optimizing the contents of C, V, P and Ti. By making the content of Ti lower than the content level in the conventional non-heat treated steel for a fracture split connecting rod, the forging finishing temperature for sufficiently securing hardness after forging is made lower, and the fracture split connecting rod in which variation in the proof stress of parts is reduced, and forging efficiency is also satisfactory is achieved. On the other hand, by optimizing an Mn content and an S content, an MnS forming amount in the steel structure contributing to the improvement of machinability is increased, and, cutting to a connecting rod shape after forging is efficiently performed.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种断裂分裂连杆，其断裂分裂性和可切削性令人满意，并且能够使锻造后的硬度充分确定的锻造精加工温度降低，因此部件的抗应力变化减小，锻造效率令人满意。解决方案：在作为断裂分裂连接杆1的构成原料的非热处理钢的组成中，通过优化C，V，P和Ti的含量来确保足够的耐力和断裂分裂性。通过使Ti的含量低于用于断裂连接杆的常规非热处理钢中的含量水平，锻造后硬度足够确定的锻造结束温度降低，并且断裂连接杆的变形部件的抗压强度降低，锻造效率也令人满意。另一方面，通过优化Mn含量和S含量，有助于提高机械加工性的钢结构中的MnS形成量增加，并且有效地进行锻造后的连杆形状切断。版权所有（C）2010，JPO＆INPIT

3. 发明专利

JP2010180473A Cracking connecting rod and method for producing the same 有权
标题翻译：破碎连接杆及其制造方法
公开(公告)号：JP2010180473A
公开(公告)日：2010-08-19
申请号：JP2009027755
申请日：2009-02-09
申请人： Daido Steel Co Ltd , 大同特殊鋼株式会社
发明人： MIYAZAKI TAKAHIRO , NAKAJIMA TOMOYUKI , HOBO MAKOTO , KATO SHINICHIRO , KANO TAKASHI , YOSHIDA HIROAKI , FUJIWARA MASANAO , TSUDA MASASHI , YAMAGUCHI KATSUYA
IPC分类号： C22C38/00 , B21J5/00 , B21J5/02 , B21K1/14 , C21D8/00 , C22C38/60 , F16C7/02
摘要： PROBLEM TO BE SOLVED: To provide a cracking connecting rod made of a ferrite-pearlite type non-heattreated steel, and having a high fatigue limit, and to provide a method for producing the same.
SOLUTION: The cracking connecting rod is composed of a ferrite-pearlite type non-heattreated steel comprising essential additional elements and optionally comprisable additional elements, and in which 0.20 to 0.60% C is comprised. The cracking connecting rod is at least provided with: a large edge part and a small edge part respectively engaged with a crankshaft and a piston; and a rod part connecting them and subjected to coining treatment. To this, C, N, Ti, Mn and Cr are added as the essential additional elements, and Si, P, S, V, Pb, Te, Ca and Bi are added as the optional additional elements. In these additional elements, Mn is added, by mass, in the range of 0.30 to 1.50% and Cr is added in the range of 0.05 to 1.00%. The connecting rod further comprises N in the range of 0.005 to 0.03% and also Ti in the range of ≤0.20% so as to satisfy Ti≥3.4N+0.02. The connecting rod further comprises ≤2.0% Si, ≤0.2% P, ≤0.2% S, ≤0.50% V, ≤0.30% Pb, ≤0.3% Te, ≤0.01% Ca and ≤0.30% Bi, and in which the 0.2% proof stress in the rod part is >700 MPa, and further, the 0.2% proof stress in the large edge part is
摘要翻译：要解决的问题：提供一种由铁素体 - 珠光体型非热处理钢制成并具有高疲劳极限的开裂连杆，并提供其制造方法。解决方案：裂解连杆由铁素体 - 珠光体型非加热处理钢构成，其包括必需的附加元素和任选的可包含的附加元素，并且其中包含0.20至0.60％的C。破裂连杆至少设有：分别与曲轴和活塞接合的大边缘部分和小边缘部分; 和连接它们并进行压印处理的杆部分。添加C，N，Ti，Mn和Cr作为必需的附加元素，并且添加Si，P，S，V，Pb，Te，Ca和Bi作为任选的附加元素。在这些附加元素中，Mn以质量计添加在0.30〜1.50％的范围内，Cr的添加量为0.05〜1.00％。连接杆还包括在0.005-0.03％的范围内的N和≤0.20％的Ti，以满足Ti≥3.4N+ 0.02。连杆还包括≤2.0％Si，≤0.2％P，≤0.2％S，≤0.50％V，≤0.30％Pb，≤0.3％Te，≤0.01％Ca和≤0.30％Bi，其中0.2 杆部的耐屈曲应力> 700MPa，大边缘部的0.2％的屈服应力<650MPa。版权所有（C）2010，JPO＆INPIT

4. 发明专利

JP2007107028A Steel material 审中-公开
标题翻译：钢材料
公开(公告)号：JP2007107028A
公开(公告)日：2007-04-26
申请号：JP2005296843
申请日：2005-10-11
申请人： Daido Steel Co Ltd , Honda Motor Co Ltd , 大同特殊鋼株式会社 , 本田技研工業株式会社
发明人： USUI KOKI , SATO YUTAKA , IGARASHI MASAHIKO , YANAGIDA WATARU , WATANABE HIDEO , ISOGAI HIDETOSHI , HOBO MAKOTO , TADA MASAHITO
IPC分类号： C22C38/00 , C21D9/28 , C22C38/06 , C22C38/54
CPC分类号： C22C38/04 , C21D1/10 , C21D9/28 , C21D9/30 , C21D2221/10 , C22C38/06 , C22C38/54 , Y02P10/253
摘要： PROBLEM TO BE SOLVED: To provide a steel material, even in the case a drive shaft or the like with small dimensions are produced, which can secure excellent strength, toughness or the like, and also exhibits satisfactory machinability. SOLUTION: A steel material comprising prescribed amounts of C, Si, Mn, S, Al and B, and preferably comprising one or more kinds selected from Nb and Ti and one or more kinds selected from Ni and Cr as well is subjected to induction hardening. The surface of the steel material after being subjected to the hardening shows 640 to 730 by H V . Further, provided that the distance from the surface to a part showing 392 by H V is defined as effective hardened layer depth (t), and the radius of the steel material is defined as (r), t/r is 0.4 to 1.0, and the ratio between the effective hardened layer depth (t) and the total hardened layer depth Rγ, t/Rγ is ≥0.7. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：解决的问题：为了提供钢材，即使在制造具有小尺寸的驱动轴等的情况下，可以确保优异的强度，韧性等，并且还表现出令人满意的切削性。解决方案：将含有规定量的C，Si，Mn，S，Al和B，优选包含选自Nb和Ti中的一种或多种以及选自Ni和Cr中的一种或更多种的钢材也被进行感应淬火。经硬化后的钢材表面通过H V SB显示为640〜730。此外，只要从表面到由H V>显示392的部分的距离定义为有效硬化层深度（t），并且钢材的半径被定义为（r），t / r为0.4〜1.0，有效硬化层深度（t）与总硬化层深度Rγ，t /Rγ的比为≥0.7。版权所有（C）2007，JPO＆INPIT

5. 发明专利

JP2006206934A High proof stress ratio non-heat-treated steel 有权
标题翻译：高抗应力比非热处理钢
公开(公告)号：JP2006206934A
公开(公告)日：2006-08-10
申请号：JP2005017353
申请日：2005-01-25
申请人： Daido Steel Co Ltd , 大同特殊鋼株式会社
发明人： TAKADA KATSUNORI , HOBO MAKOTO , KATO SHINICHIRO
IPC分类号： C22C38/00 , B21J5/00 , C21D8/06 , C22C38/60
摘要： PROBLEM TO BE SOLVED: To provide a non-heattreated steel which always exhibits a proof stress ratio of ≥0.08 being the level of a heat-treated steel even without being subjected to low temperature forging, and to provide a method for producing machine parts using the same.
SOLUTION: The non heat-treated steel has an alloy composition comprising, by weight, 0.10 to 0.35% C, 0.4 to 1.0% Si, 0.6 to 1.5% Mn, 0.06 to 0.15% P, 0.07 to 0.15% S, 0.05 to 0.50% Cu, 0.05 to 0.50% Ni, 0.05 to 0.50% Cr, ≤0.05% Mo, 0.20 to 0.45% V and 0.008 to 0.025% N, and the balance Fe with inevitable impurities; wherein, P+S ≥0.14%, Mn+Cr+2Mo ≤1.8%, Ceq=C+0.07Si+0.16Mn+0.61P+0.19Cu+0.17Ni+0.2Cr+0.4Mo+V is 0.80 to 1.15, and whose structure after forging is mainly made up of ferrite+pearlite. In the production of machine parts, after hot working, cooling is performed in the temperature range of 800 to 500°C at a rate of ≥0.8°C/sec as the average value.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：待解决的问题：为了提供即使不经受低温锻造也总是表现出≥0.08的耐压应力比为热处理钢的水平的非加热处理钢，并且提供一种生产方法机器零件使用相同。解决方案：非热处理钢具有合金组成，其包含C：0.10〜0.35％，Si：0.4〜1.0％，Mn：0.6〜1.5％，P：0.06〜0.15％，S：0.07〜0.15％ 0.05〜0.50％的Cu，0.05〜0.50％的Ni，0.05〜0.50％的Cr，≤0.05％的Mo，0.20〜0.45％的V和0.008〜0.025％的N，余量为Fe与不可避免的杂质; 其中，P +S≥0.14％，Mn + Cr +2Mo≤1.8％，Ceq = C + 0.07Si + 0.16Mn + 0.61P + 0.19Cu + 0.17Ni + 0.2Cr + 0.4Mo + V为0.80〜1.15，其锻造结构主要由铁素体+珠光体组成。机械部件的制造中，在热加工后，以800℃〜500℃的温度范围内以≥0.8℃/秒的速度进行冷却。版权所有（C）2006，JPO＆NCIPI

6. 发明专利

JP2003293025A Method for preventing elution of fluorine from slag 审中-公开
标题翻译：防止荧光素从SLAG中提取的方法
公开(公告)号：JP2003293025A
公开(公告)日：2003-10-15
申请号：JP2002102901
申请日：2002-04-04
申请人： Daido Steel Co Ltd , 大同特殊鋼株式会社
发明人： HAYASHI HIDESATO , HOBO MAKOTO , SHIBATA TOMOKI
IPC分类号： B09B3/00 , C21C7/00 , F27D15/00
摘要： PROBLEM TO BE SOLVED: To provide a method which can prevent the elution of fluorine by relatively rapidly, efficiently and cost effectively fixing the fluorine in slag mainly composed of a CaO-SiO
2 phase.
SOLUTION: The slag mainly composed of the CaO-SiO
2 phase is aged in a heated steam atmosphere by adding SiO
2 thereto in such a manner that the ratio thereof attains 1 to 30 pts.wt. per 100 pts.wt. slag.
COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供一种可以通过相对快速，有效和经济有效地将氟固定在主要由CaO-SiO 2 SBS相组成的炉渣中来防止氟的洗脱的方法。解决方案：主要由CaO-SiO 2 SBS相组成的炉渣在加热蒸汽气氛中通过以其比例加入SiO 2 来老化达到1〜30重量每100 pts.wt 矿渣。版权所有（C）2004，JPO

7. 发明专利

JP2013023708A Prehardened steel for plastic molding die 有权
标题翻译：用于塑料模具的预制钢
公开(公告)号：JP2013023708A
公开(公告)日：2013-02-04
申请号：JP2011157331
申请日：2011-07-19
申请人： Daido Steel Co Ltd , 大同特殊鋼株式会社
发明人： IBUKI MOTOHIRO , KONO MASAMICHI , HOBO MAKOTO
IPC分类号： C22C38/00 , C22C38/44 , C22C38/60
CPC分类号： C22C38/06 , B29C33/38 , C21D6/00 , C21D6/002 , C21D6/004 , C22C38/001 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/42 , C22C38/44 , C22C38/60
摘要： PROBLEM TO BE SOLVED: To provide a prehardened steel for a plastic molding die, which does not easily cause variation in hardness of a die after aging treatment while keeping specularity, corrosion resistance, thermal conductivity and impact resistance.SOLUTION: The prehardened steel includes, by mass, 0.09-0.13% C, 0.20-0.40% Si, 0.40-0.60% Mn, 0.100% or less P, 2.00-3.00% Cr, 0.60-0.90% Cu, 2.00-2.45% Ni, 0.20-0.40% Mo, Mo/Ni being ≥0.09, 0.60-0.90% Al, 0.0100% or less O, 0.0100% or less N, and the balance being Fe and inevitable impurities.
摘要翻译：要解决的问题：提供一种用于塑料成型模具的预硬化钢，其在保持镜面反射性，耐腐蚀性，导热性和耐冲击性的同时，不容易引起时效处理后的模具的硬度变化。解决方案：预硬化钢包括0.09-0.13％C，0.20-0.40％Si，0.40-0.60％Mn，0.100％或更少的P，2.00-3.00％的Cr，0.60-0.90％的Cu，2.00 -2.45％Ni，0.20-0.40％Mo，Mo / Ni≥0.09,0.60-0.90％Al，0.0100％以下O，0.0100％以下N，余量为Fe和不可避免的杂质。版权所有（C）2013，JPO＆INPIT

8. 发明专利

JP2008088473A Method for manufacturing crankshaft 有权
标题翻译：制造起重机的方法
公开(公告)号：JP2008088473A
公开(公告)日：2008-04-17
申请号：JP2006268327
申请日：2006-09-29
申请人： Daido Steel Co Ltd , 大同特殊鋼株式会社
发明人： HOBO MAKOTO , KUREBAYASHI YUTAKA
IPC分类号： C21D9/30 , B21J5/00 , B21K1/08 , C21D1/06 , C22C38/00 , C22C38/60 , F16C3/08
摘要： PROBLEM TO BE SOLVED: To provide a method for manufacturing a crankshaft having excellent bending straightening property and strength characteristic as compared with the conventional crankshaft.
SOLUTION: The method for manufacturing the crankshaft includes: a process in which a steel is hot-forged into a crankshaft shape at ≥1,100°C; a process in which the corner round part in this pin part and/or a journal par of the obtained forged product are worked at 5-50% working ratio within the temperature range of 800-1,000°C; and a process in which the obtained worked product is subjected to a soft-nitriding treatment or a nitriding treatment.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种与常规曲轴相比具有优异的弯曲矫正性和强度特性的曲轴的制造方法。解决方案：制造曲轴的方法包括：将钢锻造成曲面形状为≥1,100℃的工序; 在800-1000℃的温度范围内以5-50％的工作比加工所获得的锻造产品的该销部分的角部圆周部分和/或轴颈部件的加工过程; 以及对所得到的加工品进行软氮化处理或氮化处理的工序。版权所有（C）2008，JPO＆INPIT

9. 发明专利

JP2007197812A Soft-nitrided non-heat-treated steel member 审中-公开
标题翻译：软氮化非热处理钢构件
公开(公告)号：JP2007197812A
公开(公告)日：2007-08-09
申请号：JP2006138299
申请日：2006-05-17
申请人： Daido Steel Co Ltd , Honda Motor Co Ltd , 大同特殊鋼株式会社 , 本田技研工業株式会社
发明人： ASAI TETSUYA , TAKITANI YOSHIHIRO , AMANO MASAKI , HOBO MAKOTO , KIMURA KAZUYOSHI , TAKADA KATSUNORI
IPC分类号： C22C38/00 , C21D1/06 , C21D9/30 , C22C38/60 , C23C8/26
CPC分类号： C22C38/60 , C22C38/001 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/42 , C22C38/50 , C23C8/32 , F16C3/08 , F16C2204/64
摘要： PROBLEM TO BE SOLVED: To provide a soft-nitrided non-heat treated steel member having sufficient bending fatigue strength while controlling the hardness of the steel member into a level at which a soft-nitrided steel member can be easily corrected even when normalizing treatment is omitted after a hot forging step.
SOLUTION: The soft-nitrided non-heat-treated steel member has a soft-nitrided layer on its surface; is made from a non-heat-treating steel which has a ferrite+pearlite structure in a section except the layer; and has a composition (hereinafter, mass% as unit) comprising Fe as a main component, 0.30% to 0.50% C, 0.05% to 0.30% Si, 0.50% to 1.00% Mn, 0.03% to 0.20% S, 0.05% to 0.60% Cu, 0.02% to 1.00% Ni, and 0.05% to 0.30% Cr, so that when contents of Cu, Ni and Cr are represented by WCu, WNi and WCr respectively, and composition parameters F1 and F2 are expressed by F1=185WCr+50WCu and F2=8+4WNi+1.5WCu-44WCr respectively, the contents satisfy F1>20 and F2>0.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了提供具有足够的弯曲疲劳强度的软氮化非热处理钢构件，同时将钢构件的硬度控制在柔软的氮化钢构件即使在热锻造工序后，省略标准化处理。解决方案：软氮化非热处理钢构件表面具有软氮化层; 由除了层之外的部分具有铁素体+珠光体组织的非热处理钢制成; 并且具有以Fe为主成分的组成（以下以质量％计为单位），0.30〜0.50％的C，0.05〜0.30％的Si，0.50〜1.00％的Mn，0.03〜0.20％的S，0.05〜当Cu，Ni和Cr的含量分别由WCu，WNi和WCr表示时，组成参数F1和F2由F1 = F2表示，Cu = 0.02％〜1.00％，Ni为0.05〜0.30％ 185WCr + 50WCu，F2 = 8 + 4WNi + 1.5WCu-44WCr，满足F1> 20和F2> 0。版权所有（C）2007，JPO＆INPIT

10. 发明专利

JP2004323938A Bearing steel having excellent rolling life characteristic and its producing method 审中-公开
公开(公告)号：JP2004323938A
公开(公告)日：2004-11-18
申请号：JP2003122541
申请日：2003-04-25
申请人： Daido Steel Co Ltd , 大同特殊鋼株式会社
发明人： HAYASHI HIDESATO , HOBO MAKOTO
IPC分类号： C21C7/04 , C21C7/06 , C22C23/00 , C22C33/06 , C22C38/00 , C22C38/02
摘要： PROBLEM TO BE SOLVED: To provide a bearing steel which has excellent rolling life characteristic and can cope with the recent severe specifications by reforming ≥80% of Al
2 O
3 in the structure into MgO-Al
2 O
3 , in the bearing steel.
SOLUTION: In the bearing steel, the ratio of pieces of MgO-Al
2 O
3 to pieces of the whole oxide-based inclusions in the structure, is not less than 80%. This bearing steel is produced by using a method with which molten steel having the composition for bearing steel is melted, and Mg alloy having ≤0.1 mass% Ca content is added into the molten steel and successively, Al is added, or a method with which the molten steel composed of composition in the bearing steel is refined by using CaO-Al
2 O
3 -MgO based slag having ≥5 basicity and Al is added to the obtained molten steel as deoxidizing agent.
COPYRIGHT: (C)2005,JPO&NCIPI

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式