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1. 发明授权

US06637400B2 Internal combustion engine connecting rod 有权
公开(公告)号：US06637400B2
公开(公告)日：2003-10-28
申请号：US10088510
申请日：2002-04-12
申请人： Zenji Iida , Yasunori Satou , Shigeru Suzuki , Teruaki Midorikawa
发明人： Zenji Iida , Yasunori Satou , Shigeru Suzuki , Teruaki Midorikawa
IPC分类号： F02B7532
CPC分类号： F16C33/08 , F16C9/04 , F16C17/02 , F16C17/022 , F16C2226/50 , F16C2360/22
摘要： An internal combustion engine connecting rod capable of preventing rotation or relative slippage of a slide metal piece even if the nail of the slide metal piece is not abutted. An internal combustion engine connecting rod comprising a hole in the end of the connecting rod main body, the end being divided into a plurality of parts circumferentially of the hole, and a slide metal piece (10) disposed on the inner peripheral surface of the hole, wherein the inner peripheral surface of the hole is provided with slits (L, L′) extending in one direction at an angle of 13-90° with respect to the circumferential direction.

2. 发明申请

US20090311122A1 POWDER FORGED MEMBER, POWDER MIXTURE FOR POWDER FORGING, METHOD FOR PRODUCING POWDER FORGED MEMBER, AND FRACTURE SPLIT TYPE CONNECTING ROD USING THE SAME 审中-公开
标题翻译：粉末成形体，粉末用粉末混合物，粉末成形体的制造方法以及使用其的断裂分离型连接棒
公开(公告)号：US20090311122A1
公开(公告)日：2009-12-17
申请号：US12307662
申请日：2007-07-04
申请人： Masaaki Sato , Minoru Takada , Kentaro Takada , Zenji Iida , Ryosuke Kogure
发明人： Masaaki Sato , Minoru Takada , Kentaro Takada , Zenji Iida , Ryosuke Kogure
IPC分类号： B22F3/12 , C22C38/16 , B22F3/24
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： A member produced by powder forging which retains machinability and improved fatigue strength without having an increased hardness and can retain self conformability after fracture splitting; a powder mixture for powder forging; a process for producing a member by powder forging; and a fracture splitting connecting rod obtained from the member produced by powder forging. The member produced by powder forging is one obtained by preforming a powder mixture, subsequently sintering the preform, and forging the resultant sintered preform at a high temperature. The free-copper proportion in the sintered preform at the time when the forging is started is 10% or lower, and the member obtained through the forging has a composition containing, in terms of mass %, 0.2-0.4% C, 3-5% Cu, and up to 0.4% Mn (excluding 0), the remainder being iron and incidental impurities, and has a ferrite content of 40-90%.
摘要翻译：通过粉末锻造制成的构件，其保持机械加工性和改善的疲劳强度，而不增加硬度并且可以在断裂后保持自适应性; 用于粉末锻造的粉末混合物; 通过粉末锻造制造构件的方法; 以及由由粉末锻造制成的构件获得的断裂连接杆。通过粉末锻造制造的构件是通过预先形成粉末混合物，随后烧结预成型件和在高温下锻造所得到的烧结预成型体而获得的构件。锻造开始时的烧结预成型体中的游离铜比例为10％以下，通过锻造得到的成分的组成为以质量％计含有0.2〜0.4％的C，3-5 ％Cu和高达0.4％的Mn（不包括0），其余为铁和杂质，铁素体含量为40-90％。

3. 发明授权

US08152939B2 Non-heat treated connecting rod and method of manufacturing the same 有权
标题翻译：非热处理连杆及其制造方法
公开(公告)号：US08152939B2
公开(公告)日：2012-04-10
申请号：US11221853
申请日：2005-09-09
申请人： Tatsuya Hasegawa , Zenji Iida , Kentaro Takada
发明人： Tatsuya Hasegawa , Zenji Iida , Kentaro Takada
IPC分类号： C22C38/00 , C21D8/00
CPC分类号： F16C7/023 , F16C9/045 , Y10T29/49288 , Y10T29/49291 , Y10T74/2142
摘要： A non-heat treated connecting rod which comprises, by mass %, C: 0.25-0.35%, Si: 0.50-0.70%, Mn: 0.60-0.90%, P: 0.040-0.070%, S: 0.040-0.130%, Cr: 0.10-0.20%, V: 0.15-0.20%, Ti: 0.15-0.20% and N: 0.002-0.020%, and the balance Fe and impurities, with chemical compositions being less than 0.80 in the value of C+(Si/10)+(Mn/5)+(5Cr/22)+1.65 V−(5S/7) using the symbol of the element as its content, the microstructure of the Big end of the said connecting rod being ferrite-pearlite, all-region hardness of the said big end being 255 to 320 in Vickers hardness, the ferrite-region hardness in the said ferrite-pearlite of the Big end being 250 or more in Vickers hardness and the ratio of the said ferrite-region hardness to the said all-region hardness of the said Big end being 0.80 or more, is excellent in machinability, fracture splitting ability, and fatigue resistance, although no Pb at all is added. Therefore, this non-heat treated connecting rod can be utilized as a low cost type connecting rod in automobile engines or the like.
摘要翻译： 1.一种非热处理连杆，其以质量％计含有C：0.25-0.35％，Si：0.50-0.70％，Mn：0.60-0.90％，P：0.040-0.070％，S：0.040-0.130％，Cr ：0.10-0.20％，V：0.15-0.20％，Ti：0.15-0.20％和N：0.002-0.020％，余量为Fe和杂质，化学成分小于0.80（C +（Si / 10））+（Mn / 5）+（5Cr / 22）+1.65V-（5S / 7），使用元素的符号作为其含量，所述连杆的大端的微结构为铁素体 - 珠光体，所述大端的区域硬度维氏硬度为255〜320，所述大端的所述铁素体 - 珠光体的铁素体区硬度为维氏硬度为250以上，所述铁素体区硬度与所述所述大端的全区域硬度为0.80以上，尽管不添加Pb，但是其切削性，断裂能力和耐疲劳性优异。因此，这种未经热处理的连杆可用作汽车发动机等中的低成本型连杆。

4. 发明申请

US20070187003A1 High-strength bolt superior in delayed fracture and resistance and relaxation resistance 审中-公开
$High-strength bolt superior in delayed fracture and resistance and relaxation resistance$
标题翻译：高强度螺栓优于延迟断裂和抗张力和抗张力
公开(公告)号：US20070187003A1
公开(公告)日：2007-08-16
申请号：US10591475
申请日：2005-03-01
申请人： Mitsuo Takashima , Kentaro Takada , Zenji Iida , Katsuhiro Tsukiyama , Takehiko Egawa , Yuichi Namimura , Nobuhiko Ibaraki
发明人： Mitsuo Takashima , Kentaro Takada , Zenji Iida , Katsuhiro Tsukiyama , Takehiko Egawa , Yuichi Namimura , Nobuhiko Ibaraki
IPC分类号： C22C38/00
CPC分类号： C22C38/02 , C22C38/04 , C22C38/18 , F16B35/00
摘要： Disclosed is a high-strength bolt having a tensile strength of 1,200 N/mm2 or more and superior in delayed fracture resistance and relaxation resistance, prepared by wire-drawing a bolt steel containing the following elements: C: 0.5 to 1.0% (mass %, the same shall apply hereinafter), Si: 0.55 to 3%, Mn: 0.2 to 2%, P: 0.03% or less (but not 0%), S: 0.03% or less (but not 0%), and Al: 0.3% or less (but not 0%), and containing proeutectoid ferrite, proeutectoid cementite, bainite and martensite at a total areal rate of less than 20% and pearlite in balance; cold-heading the wire into a bolt shape; and then bluing the bolt in a temperature range of 100 to 500° C.
摘要翻译：公开了通过拉拔含有以下元素的螺栓钢制备的拉伸强度为1200N / mm 2以上的耐久性和耐松弛性优异的高强度螺栓：C ：0.5〜1.0％（质量％，以下相同），Si：0.55〜3％，Mn：0.2〜2％，P：0.03％以下（但不为0％），S：0.03％以下但不是0％），Al：0.3％以下（但不是0％），并且总共面积率小于20％的前共析铁素体，共析铁素体，贝氏体和马氏体，平衡的珠光体; 将钢丝冷拔成螺栓形状; 然后在100〜500℃的温度范围内使螺栓上蓝。

5. 发明授权

US06655026B1 Production process for connecting rod for internal combustion engine 失效
标题翻译：内燃机连杆生产工艺
公开(公告)号：US06655026B1
公开(公告)日：2003-12-02
申请号：US09490149
申请日：2000-01-24
申请人： Zenji Iida , Mitsuo Takashima , Shigeki Muroga , Seiichi Koike
发明人： Zenji Iida , Mitsuo Takashima , Shigeki Muroga , Seiichi Koike
IPC分类号： B23P1700
CPC分类号： C23C8/80 , C21D7/06 , C21D9/0068 , F16C9/04 , F16C33/12 , F16C33/14 , F16C2204/60 , Y10T29/49288 , Y10T29/49995
摘要： Material for a connecting rod for an internal combustion engine is carburized and quenched, a carburized layer formed on the bearing portion is ground until the portion which exhibits the maximum compressive residual stress, and a shot-peening processing is performed on the ground surface. The invention produces a bearing portion having surface characteristics in which maximum compressive residual stress is imparted, and therefore, remarkable improvement in the fatigue strength in the bearing portion can be obtained. Furthermore, a large number of concavities formed by the shot-peening processing can be efficiently employed as an oil reservoir, so that sliding properties and lubrication can be improved, and the occurrence of problems such as fretting corrosion, galling, and seize can also be solved, and the galling and problems of the seize can be prevented.
摘要翻译：用于内燃机的连杆的材料被渗碳淬火，将形成在轴承部分上的渗碳层研磨直到在地面上进行表现出最大压缩残余应力的部分和喷丸处理。本发明产生具有赋予最大压缩残余应力的表面特性的轴承部，因此可以获得轴承部的疲劳强度的显着提高。此外，通过喷丸处理形成的大量凹部可以有效地用作储油器，从而可以提高滑动性能和润滑性，并且也可以发生诸如微动腐蚀，磨损和卡住等问题的发生解决了这个问题，可以防止劫持和抓住的问题。

6. 发明申请

US20060000088A1 Non-heat treated connecting rod and method of manufacturing the same 有权
标题翻译：非热处理连杆及其制造方法
公开(公告)号：US20060000088A1
公开(公告)日：2006-01-05
申请号：US11221853
申请日：2005-09-09
申请人： Tatsuya Hasegawa , Zenji Iida , Kentaro Takada
发明人： Tatsuya Hasegawa , Zenji Iida , Kentaro Takada
IPC分类号： B21D53/84
CPC分类号： F16C7/023 , F16C9/045 , Y10T29/49288 , Y10T29/49291 , Y10T74/2142
摘要： A non-heat treated connecting rod which comprises, by mass %, C: 0.25-0.35%, Si: 0.50-0.70%, Mn: 0.60-0.90%, P: 0.040-0.070%, S: 0.040-0.130%, Cr: 0.10-0.20%, V: 0.15-0.20%, Ti: 0.15-0.20% and N: 0.002-0.020%, and the balance Fe and impurities, with chemical compositions being less than 0.80 in the value of C+(Si/10)+(Mn/5)+(5Cr/22)+1.65 V−(5S/7) using the symbol of the element as its content, the microstructure of the Big end of the said connecting rod being ferrite-pearlite, all-region hardness of the said big end being 255 to 320 in Vickers hardness, the ferrite-region hardness in the said ferrite-pearlite of the Big end being 250 or more in Vickers hardness and the ratio of the said ferrite-region hardness to the said all-region hardness of the said Big end being 0.80 or more, is excellent in machinability, fracture splitting ability, and fatigue resistance, although no Pb at all is added. Therefore, this non-heat treated connecting rod can be utilized as a low cost type connecting rod in automobile engines or the like.
摘要翻译： 1.一种非热处理连杆，其以质量％计含有C：0.25-0.35％，Si：0.50-0.70％，Mn：0.60-0.90％，P：0.040-0.070％，S：0.040-0.130％，Cr ：0.10-0.20％，V：0.15-0.20％，Ti：0.15-0.20％和N：0.002-0.020％，余量为Fe和杂质，化学成分小于0.80（C +（Si / 10））+（Mn / 5）+（5Cr / 22）+1.65V-（5S / 7），使用元素的符号作为其含量，所述连杆的大端的微结构为铁素体 - 珠光体，所述大端的区域硬度维氏硬度为255〜320，所述大端的所述铁素体 - 珠光体的铁素体区硬度为维氏硬度为250以上，所述铁素体区硬度与所述所述大端的全区域硬度为0.80以上，尽管不添加Pb，但是其切削性，断裂能力和耐疲劳性优异。因此，这种未经热处理的连杆可用作汽车发动机等中的低成本型连杆。

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