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1. 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

2. 发明专利

JP2008013818A Powder forged member, powdery mixture for powder forging, method for producing powder forged member and fracture split type connecting rod using the same 有权
$Powder forged member, powdery mixture for powder forging, method for producing powder forged member and fracture split type connecting rod using the same$
标题翻译：粉末成形体，粉末锻造用粉末混合物，粉末成形体的制造方法及使用其的断裂分离型连接棒
公开(公告)号：JP2008013818A
公开(公告)日：2008-01-24
申请号：JP2006186927
申请日：2006-07-06
申请人： Honda Motor Co Ltd , Kobe Steel Ltd , 本田技研工業株式会社 , 株式会社神戸製鋼所
发明人： SATO MASAAKI , TAKADA MINORU , TAKADA KENTARO , IIDA ZENJI , KOGURE RYOSUKE
IPC分类号： C22C38/00 , B21J5/00 , B21K1/14 , B22F1/00 , B22F3/24 , C22C33/02 , C22C38/16
CPC分类号： F16C7/02 , B21J5/002 , B21K1/766 , B22F3/17 , B22F2998/10 , C22C33/0264 , C22C38/04 , C22C38/16 , F16C7/023 , F16C9/045 , Y10T74/2142 , B22F3/10
摘要： PROBLEM TO BE SOLVED: To provide a powder forged member in which fatigue strength is improved while securing its machinability without increasing its hardness, and self-compatibility after a fracture split can be secured, to provide a powdery mixture for powder forging, to provide a method for producing a powder forged member, and to provide a fracture split type connecting rod using the powder forged member. SOLUTION: The powder forged member having excellent machinability and fatigue strength is obtained by forging a sintered preform formed by subjecting a powdery mixture to preliminary compacting and thereafter sintering the same at high temperature. The ratio of free Cu in the sintered preform upon the start of the forging is ≤10%. Further, its componential composition after the forging is composed of, by mass, 0.2 to 0.4% C, 3 to 5% Cu and ≤0.4%(excluding zero) Mn, and the balance iron with inevitable impurities, and also, a ferrite ratio therein is 40 to 90%. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：解决问题：提供一种在不增加其硬度的同时确保其机械加工性的同时提高疲劳强度的粉末锻造构件，并且可以确保断裂后的自相容性，以提供粉末锻造用粉末混合物，提供一种制造粉末锻造件的方法，并提供使用该粉末锻造件的断裂分裂型连杆。解决方案：具有优异的机械加工性和疲劳强度的粉末锻造构件是通过锻造通过将粉末混合物预先压实形成的烧结预制件，然后在高温下烧结而获得的。锻造开始时烧结预成型体中游离Cu的比例≤10％。此外，其锻造后的组成成分以质量计含有0.2〜0.4％的C，3〜5％的Cu和≤0.4％（不包括零）的Mn，余量的铁与不可避免的杂质构成，铁素体比其中40〜90％。版权所有（C）2008，JPO＆INPIT

3. 发明专利

JP2010229516A Powder forging having excellent fatigue strength, powdery mixture for powder forging and fracture split type connecting rod 有权
$Powder forging having excellent fatigue strength, powdery mixture for powder forging and fracture split type connecting rod$
标题翻译：粉末锻造具有优异的疲劳强度，用于粉末锻造和破碎分离类型连接棒的粉末混合物
公开(公告)号：JP2010229516A
公开(公告)日：2010-10-14
申请号：JP2009079660
申请日：2009-03-27
申请人： Honda Motor Co Ltd , Kobe Steel Ltd , 本田技研工業株式会社 , 株式会社神戸製鋼所
发明人： SATO MASAAKI , TAKADA MINORU , AKAGI NOBUAKI , KOGURE RYOSUKE , TAKADA KENTARO
IPC分类号： C22C33/02 , B21J5/00 , B21K1/14 , B22F3/16 , B22F5/00 , C22C38/00 , C22C38/16 , F16C7/02
摘要： PROBLEM TO BE SOLVED: To provide a powder forging which can obtain excellent fatigue properties satisfying a fatigue limit of ≥400N/mm
2 while securing sufficient machinability and toughness even without adding expensive elements; to provide a powder mixture which is used as the raw material of the powder forging; and to provide a fracture split type connecting rod which is produced using the powder forging.
SOLUTION: The powder forging has a true density ratio of ≥97% and has a componential composition containing, by mass, 0 to 0.45% C, 0.5 to 4% Cu and 0.1 to 0.7% P, and the balance iron with inevitable impurities, and in which the content of C, Cu and P satisfies the conditional expression of [Cu]+22[C]+28[P]>14, wherein [ ] represents the content (mass%) of each element.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：即使不添加昂贵的元素，也能够确保足够的机械加工性和韧性，从而能够获得满足疲劳极限≥400N/ mm 2 的优异的疲劳特性的粉末锻造。以提供用作粉末锻造原料的粉末混合物; 并提供使用该粉末锻造制造的断裂分裂型连杆。解决方案：粉末锻造具有≥97％的真实密度比，并且具有以质量计含有0至0.45％C，0.5至4％Cu和0.1至0.7％P的组成成分，余量为不可避免的杂质，其中C，Cu和P的含量满足[Cu] +22 [C] +28 [P]> 14的条件表达式，其中[]表示各元素的含量（质量％）。版权所有（C）2011，JPO＆INPIT

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