公开(公告)号：US20080233421A1

公开(公告)日：2008-09-25

申请号：US12076718

申请日：2008-03-21

申请人： Hitoshi TANINO ,  Kimihiko ANDO ,  Shinya OMURA ,  Toshitake MIYAKE ,  Mikio KONDOH ,  Nobuhiko MATSUMOTO

发明人： Hitoshi TANINO ,  Kimihiko ANDO ,  Shinya OMURA ,  Toshitake MIYAKE ,  Mikio KONDOH ,  Nobuhiko MATSUMOTO

IPC分类号： B32B15/01 ,  B22F3/12

CPC分类号： C22C38/04 ,  B22F5/12 ,  B22F2998/00 ,  B22F2998/10 ,  C22C33/0264 ,  C22C38/12 ,  C22C38/16 ,  Y10T428/12014 ,  B22F1/025 ,  B22F3/17 ,  B22F3/10

摘要： There is provided an iron-based sintered material resistant to the metal fatigue developing from the voids therein functioning as the initial points and improved in the strength and machinability thereof.An iron-based sintered material, including a mixed structure of martensite, bainite, and pearlite and multiple voids formed in the mixed structure, wherein the ratio of martensite and bainite in the mixed structure is 70% or more; the ratio of martensite and/or bainite in the mixed structure forming the void surface is 90% or more; and the density of the iron-based sintered material is 7.4 g/cm3 or more.

摘要翻译： 提供一种铁基烧结材料，其耐金属疲劳从其中作为起始点的空隙显影，并提高了其强度和机械加工性。 在混合结构体中形成马氏体，贝氏体和珠光体的混合结构和多个空隙的铁基烧结体，其中，所述混合结构体中的马氏体和贝氏体的比例为70％以上， 形成空隙面的混合结构体中的马氏体和/或贝氏体的比例为90％以上。 铁基烧结体的密度为7.4g / cm 3以上。

公开(公告)号：US20100074790A1

公开(公告)日：2010-03-25

申请号：US12629239

申请日：2009-12-02

申请人： Mikio KONDOH ,  Nobuhiko Matsumoto ,  Toshitake Miyake ,  Shigehide Takemoto ,  Hitoshi Tanino

发明人： Mikio KONDOH ,  Nobuhiko Matsumoto ,  Toshitake Miyake ,  Shigehide Takemoto ,  Hitoshi Tanino

IPC分类号： B22F1/00 ,  B22F3/12 ,  B22F3/24 ,  C22C33/02

CPC分类号： C22C33/0264 ,  B22F2003/145 ,  B22F2998/10 ,  B22F2999/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/22 ,  B22F1/0003 ,  B22F3/02 ,  B22F3/10 ,  B22F2201/02

摘要： An iron-based sintered alloy of the present invention is an iron-based sintered alloy, which is completed by sintering a powder compact made by press forming a raw material powder composed of Fe mainly, and is such that: when the entirety is taken as 100% by mass, carbon is 0.1-1.0% by mass; Mn is 0.01-1.5% by mass; the sum of the Mn and Si is 0.02-3.5% by mass; and the major balance is Fe. It was found out that, by means of an adequate amount of Mn and Si, iron-based sintered alloys are strengthened and additionally a good dimensional stability is demonstrated. As a result, it is possible to suppress or obsolete the employment of Cu or Ni, which has been believed to be essential virtually, the recyclability of iron-based sintered alloys can be enhanced, and further their cost reduction can be intended.

摘要翻译： 本发明的铁基烧结合金是一种铁基烧结合金，它是通过烧结由主要由Fe组成的原料粉末压制成形的粉末压粉而完成的，并且使得当将整体作为 100质量％，碳为0.1〜1.0质量％ Mn为0.01〜1.5质量％ Mn和Si的总和为0.02〜3.5质量％ 主要的余额是Fe。 发现通过适量的Mn和Si，铁基烧结合金被加强，并且还显示出良好的尺寸稳定性。 结果，可以抑制或过时地使用Cu或Ni，这实际上被认为是必不可少的，因此可以提高铁基烧结合金的可回收性，进一步降低成本。

公开(公告)号：US20100310405A1

公开(公告)日：2010-12-09

申请号：US12794435

申请日：2010-06-04

申请人： Mikio KONDOH ,  Toshitake MIYAKE ,  Kimihiko ANDO ,  Hideo HANZAWA ,  Nobuhiko MATSUMOTO

发明人： Mikio KONDOH ,  Toshitake MIYAKE ,  Kimihiko ANDO ,  Hideo HANZAWA ,  Nobuhiko MATSUMOTO

IPC分类号： B22F3/24 ,  C22C30/00 ,  C22C38/04 ,  C22C38/02

CPC分类号： C22C38/02 ,  C22C22/00 ,  C22C33/0207 ,  C22C33/0264 ,  C22C38/04 ,  C22C38/22

摘要： A ferrous sintered alloy includes a sintered raw-material powder that is made of an Fe—Cr—Mo-system powder, a carbon-system powder and an Mn—Si-system powder before sintering. The ferrous sintered alloy exhibits a density of 7.4 g/cm3 or more, and has a metallic structure that includes martensite and bainite. In the metallic structure, the martensite accounts for an area proportion of 40% or less when the entirety of the metallic structure is taken as 100% by area. Moreover, the martensite exhibits a particle diameter of 20 μm or less. The ferrous sintered alloy is good in terms of machinability.

摘要翻译： 含铁烧结合金包括在烧结之前由Fe-Cr-Mo系粉末，碳系粉末和Mn-Si系粉末制成的烧结原料粉末。 含铁烧结合金的密度为7.4g / cm 3以上，具有包含马氏体和贝氏体的金属结构。 在金属结构体中，当将全部金属结构作为100％面积时，马氏体的面积比例为40％以下。 此外，马氏体的粒径为20μm以下。 铁质烧结合金在切削性方面是良好的。

公开(公告)号：US20130327491A1

公开(公告)日：2013-12-12

申请号：US13966735

申请日：2013-08-14

申请人： Masashi HARA ,  Kazuhiko ITOH ,  Mikio KONDOH ,  Kazuaki NISHINO ,  Isamu UEDA ,  Kimihiko ANDO ,  Yoshihiko ITO

发明人： Masashi HARA ,  Kazuhiko ITOH ,  Mikio KONDOH ,  Kazuaki NISHINO ,  Isamu UEDA ,  Kimihiko ANDO ,  Yoshihiko ITO

IPC分类号： B22D19/00

CPC分类号： B22D19/0027 ,  B23P15/10 ,  F02F3/0084 ,  F02F3/14 ,  F02F3/26 ,  F05C2201/0412 ,  F05C2201/0436 ,  F05C2201/0487 ,  F05C2201/903 ,  F05C2203/0808 ,  F05C2203/0869 ,  Y10T29/49249

摘要： A piston for in-cylinder fuel-injection type internal combustion engine includes a piston body, a low thermal conductor, and a piston head. The low thermal conductor is disposed on the top of the piston body. The low thermal conductor includes a low thermally-conductive substrate, and a coating layer. The low thermally-conductive substrate has opposite surfaces. The coating layer includes alumina fine particles (Al2O3). The coating layer is adhered on at least a part one of the opposite surfaces of the low thermally-conductive substrate that makes a cast-buried or enveloped surface to be cast buried or enveloped in the piston head.