Nissan Motor Company Limited

Renault S.a.s.

Takashi Oda

Katsumi Morohoshi

Yasuaki Kai

Tomohiro Ito

Masaki Koyama

Hironobu Muramatsu

Zhe Jiang

Shinichiro Takemoto

Takashi Seino

Naoya Matsuoka

Toshikazu Torigaki

Kenji Uesugi

Haruo Unno

Minoru Souma

Tomohiro Itou

Kenichi Horai

Takashi Komiyama

A molding mold for a composite bodyfor forming a composite body A that integrally molds a resin member R on one main surface of a metal panel P, including at least a fixed moldand a movable mold, and including, in a mold on the resin member side among the fixed moldand the movable mold, a panel fixing mechanismthat fixes an edge portion of the metal panel Pin a state in which the fixed moldand the movable mold are open. The molding mold for a composite bodyeliminates a movable body with respect to a molding space of the resin member R and overcomes the generation of burr in the resin member R, and forms an exposed metal portion B on the edge portion of the metal panel Pon the resin member R side by the panel fixing mechanism

Molding mold for composite body

Provided is a method of molding, by using a mold, a component including a metal plate and a thermoplastic resin containing a thermoplastic resin arranged on a surface on one side of the metal plate, the mold including at least a movable mold and a fixed mold including a support portion. Specifically, the molding method includes: an arranging step of arranging a premolded metal plate within the mold; a fixing step of fixing the metal plate by pressing the metal plate against the movable mold with use of the support portion; and a molding step including forming a cavity between the fixed mold and the metal plate by closing the mold, bringing the thermoplastic resin into close contact with the metal plate, and forming an exposed portion by exposing the metal plate out of the softened thermoplastic resin with use of the support portion. With this, without leakage of the thermoplastic resin, a joint region to a metal surface of another component can be reliably secured.

Method of forming component using metal-resin composite and mold for forming said component

A vehicle body structure includes a body side section () configured of a first composite component () and a body lower section () configured of a second composite component (). Each of the first and second composite components () comprises a metal plate () and a fiber reinforced thermoplastic portion () that contains discontinuous fibers. The fiber reinforced thermoplastic portion () of the first composite component () includes a lining layer formed on the metal plate () and reinforcing ribs raised from the lining layer. The fiber reinforced thermoplastic portion () of the second composite component () includes a planar portion () infilled in an opening () opened on the metal plateThe discontinuous fibers in the fiber reinforced thermoplastic portion () of the second composite component () are longer than the discontinuous fibers in the fiber reinforced thermoplastic portion () of the first composite component ().

Vehicle body structure

Provided is a composite (A) including a metal plate (B) and a reinforcing member (C) that is made of a resin. The metal plate (B) includes a joint portion () that is continuous with one end of a body portion (), a hole that is formed through the body portion () in a thickness direction of the body portion () in the proximity of the joint portion (), and a guide portion provided around the hole. The reinforcing member (C) continuously includes a main portion (), a coupling portion () formed in the hole (), and a locking portion () that is held in close contact with a surface on another side of the body portion (). The guide portion () is at least one of a protruding portion provided on at least one of a rear side and a lateral side relative to the hole () in a direction from the body portion () to the joint portion (), and a recessed portion extended from a front side relative to the hole () to the hole () in the direction from the body portion to the joint portion. In insert molding of the composite (A), a molten resin is introduced preferentially into the hole (). With this, the joint portion () is formed reliably in good condition free from adhesion of the resin.

Composite

A method for producing carbon fiber reinforced resin molded article of the present invention includes press-molding a mixture-made body including carbon fiber and thermoplastic resin to produce the article that is composed of CFRP. The method further includes perforating pores into the mixture-made body, before press-molding mentioned above. As, in perforating, at least the pores are formed so as to penetrate through a hardened part of a surface of the mixture-made body, the article made of the CFRP that does not have poor appearance, such as whitening or marble pattern, can be produced.

Method for producing carbon fiber reinforced resin molded article, and apparatus for producing carbon fiber reinforced resin molded article

A carbon fiber-reinforced resin molded body of the present invention derives from kneaded materials of a thermoplastic resin and a carbon fiber and includes at least a three-dimensional complex shaped region and a substantially flat plate-shaped region arranged in a profile direction. Fluidity of the kneaded materials at predetermined temperature is such that fluidity of the kneaded material forming the substantially flat plate-shaped region is lower than fluidity of the kneaded material forming the three-dimensional complex shaped region, which makes it unlikely to cause defects in ribs, posses, and other portions. Thus, a carbon fiber-reinforced resin molded body with low cost and high strength can be provided.

Carbon fiber-reinforced resin molded body and manufacturing method thereof

An alumina particle composite () includes an alumina particle () and an organic acid () chemically bonded to a surface of the alumina particle (). Further, the alumina particle () has a short axis length of 1 to 10 nm, a long axis length of 20 to 400 nm, and an aspect ratio of 5 to 80, and is represented by Formula I,AlO&#xb7;nHO&#x2003;&#x2003;Formula I

Alumina particle composite, method of manufacturing the alumina particle composite, resin composition and method of manufacturing the resin composition

There is provided a polycarbonate resin composition containing aluminum oxide nanoparticles and being capable of showing good moldability and retention heat stability and combining high transparency and dimensional stability with excellent mechanical properties. The polycarbonate resin composition is characterized by containing an organic acid and aluminum oxide and in that: the resin composition has a melt mass flow rate of 11 g/10 min or higher as measured according to JIS K 7210 under the conditions of a temperature of 280&#xb0; C., a nominal load of 2.16 Kg and a nozzle dimension L/D of 8/2; and a No. 2 dumbbell-shaped specimen according to JIS K 7113 formed by heat-press molding the resin composition into a film of 0.2 mm in thickness and cutting the film has a breaking stress of 8 MPa or higher as measured under the conditions of a temperature of 23&#xb0; C., a humidity of 50% RH and a tensile rate of 50 mm/min. The organic acid is preferably an organic sulfonic acid having a carbon number of 8 or greater, more preferably the one containing an aromatic ring in the molecule.

Polycarbonate resin composition and process for producing the same

An alumina particle () of the present invention has an alumina body with a short axis length (b) of 1 to 10 nm, a long axis length (a) of 20 to 400 nm and an aspect ratio (a/b) of 5 to 80. The alumina body is expressed by a Formula I, and n is not less than 0.AlO.nHO&#x2003;&#x2003;Formula I

Alumina particles of high aspect ratio, alumina particle manufacturing method, resin composition, and resin composition manufacturing method

An alumina particle () of the present invention has an alumina body with a short axis length (b) of 1 to 10 nm, a long axis length (a) of 20 to 400 nm and an aspect ratio (a/b) of 5 to 80. The alumina body is expressed by a Formula I, and n is not less than 0.AlOHO&#x2003;&#x2003;Formula I

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Yokosuka, Japan

Takashi Oda