公开(公告)号：US20040123829A1

公开(公告)日：2004-07-01

申请号：US10638971

申请日：2003-08-11

Applicant: Fuji Jukogyo Kabushiki Kaisha ,  NHK Spring Co., Ltd.

Inventor： Kenji Harima ,  Akihiro Katsuya ,  Tohru Shiraishi

IPC: F02F007/00

CPC classification number: F02F7/0053 ,  F02B75/243 ,  F02F7/0009 ,  F02F7/0085 ,  F05C2201/021 ,  F05C2201/0439 ,  F05C2251/042 ,  F05C2253/16

Abstract: A structure of bearing housings of a cylinder block comprises aluminum alloy for constituting the whole cylinder block and a plurality of fiber reinforced metal (FRM) areas. The FRM areas are formed by integrally casting a sheet-like preform containing reinforced metal fibers with aluminum alloy. A plurality of such sheet-like preforms are separately provided in a bearing housing in an axial direction of a crankshaft.

公开(公告)号：US20010028948A1

公开(公告)日：2001-10-11

申请号：US09827606

申请日：2001-04-05

Applicant: NHK Spring Co., Ltd.

Inventor： Toshihiro Takehana ,  Akihiro Katsuya ,  Tohru Shiraishi

IPC: B32B015/14

CPC classification number: B22F1/004 ,  B22D18/02 ,  B22D19/0027 ,  B22D19/14 ,  B22F2003/248 ,  C22C38/02 ,  C22C38/06 ,  C22C38/18 ,  C22C49/14 ,  F02B23/0672 ,  F02F3/045 ,  F05C2201/021 ,  F05C2251/042 ,  F05C2253/16 ,  Y02T10/125 ,  Y10T428/12486 ,  Y10T428/12757 ,  Y10T428/12958 ,  Y10T428/249927

Abstract: A part of a piston is composed of a metal matrix composite. The metal matrix composite is composed of a matrix of a light metal alloy and reinforcements formed of metallic fibers mixed in the matrix. The reinforcements are formed of an alloy that consists mainly of Fe and Cr and contains Al and/or Si. The Cr content and the Al and/or Si content of the reinforcements range from 5 to 30% and from 3 to 10%, respectively. The fiber diameter of the reinforcements ranges from null20 nullm to null100 nullm. The reinforcements are formed by the melt extraction method and have irregular peripheral surfaces. Solution-treatment of the metal matrix composite is carried out within a temperature range from 470null C. to 500null C. such that formation of intermetallic compounds is restrained.

Abstract translation: 活塞的一部分由金属基复合材料组成。 金属基复合材料由轻金属合金基体和由基体中混合的金属纤维形成的增强材料构成。 加强件由主要由Fe和Cr组成并含有Al和/或Si的合金形成。 加强物的Cr含量和Al和/或Si含量分别为5％至30％和3％至10％。 钢筋的纤维直径范围从ø20um到ø100mum。 加强件通过熔体提取法形成，并具有不规则的周边表面。 金属基复合材料的溶液处理在470℃至500℃的温度范围内进行，从而抑制金属间化合物的形成。