Kitagawa Industries Co., Inc.

Mitsubishi Heavy Industries Limited

Mitsubishi Jukogyo Kabushiki Kaisha

Mitsubishi Heavy Industries Plastic Technology Co., Ltd.

Takashi Mizuno

Yasuhiro Kawaguchi

Tetsuo Uwaji

Koji Suzuki

Toshihiko Kariya

Hideo Yumi

Yasuo Kondo

Kiyoshi Kinoshita

Yukio Tamura

Satoshi Deguchi

Kazunori Kuga

Kenji Tsutsui

Tomoyuki Suzuki

Kimio Akazawa

Junji Murase

Takeshi Ishiwada

Nobuhiro Uchida

Kouji Kuwabara

A thermally conductive sheet including: an acrylic polymer; a high-soda alumina in an amount of 70 to 75% by volume; and a magnesium hydroxide having a particle size smaller than a particle size of the high-soda alumina in an amount of 2.7 to 5.3% by volume, the magnesium hydroxide is coated with a higher fatty acid. The thermally conductive sheet has a compressive force required in a deformation with a compressibility of 20% or less of 200 N or less, and has a thermal resistance of 0.45&#xb0; C./W or less.

Thermally conductive sheet and method for manufacturing thermally conductive sheet

Provided is a thermally conductive member having excellent thermal resistance and insulating properties.The thermally conductive member includes a silicone resin, a thermally conductive filler having a larger particle diameter from 30 um to 100 &#x3bc;m, a thermally conductive filler having a smaller particle diameter of not greater than 10 um, and mica having a particle diameter of not greater than 10 um and an aspect ratio of not greater than 50. The mica is added at a ratio of from 0.9 to 11 parts by mass relative to 100 parts by mass of the silicone resin.

Thermally conductive member and method for producing thermally conductive member

A thermally conductive material according to the present invention is prepared by allowing silicon carbide having an average particle size of 10 &#x3bc;m or more and less than 50 &#x3bc;m, aluminum hydroxide having an average particle size of 1 &#x3bc;m or more and less than 10 &#x3bc;m, and magnesium hydroxide having an average particle size of 0.5 &#x3bc;m or more and less than 1 &#x3bc;m to be contained in a polymer obtained by polymerizing a monomer containing acrylic acid ester.

Thermally conductive material

The heat conduction member comprises a laminate formed by laminating a resin layer and a metal layer. The resin layer is formed from a thermally conductive resin material. The thickness of the laminate is smaller at the peripheral edge of the laminate than in the center portion of the laminate, and the thickness of the laminate is greater in the intermediate portion of the laminate than in the center portion of the laminate. An inclined surface is formed on the laminate so as to form a falling gradient from the intermediate portion toward the peripheral edge.

Heat conduction member, production method for heat conduction member, and heat conduction structure

A thermally conductive material is provided. The thermally conductive material includes: a polymer containing a thermally conductive filler and an antioxidant; the polymer being a polymer of a monomer containing an acrylic ester, a hindered phenol-based antioxidant being contained as the antioxidant, a thermal conductivity being 3.2 W/m&#xb7;K or greater, and an initial Asker C hardness at ambient temperature being 22 or less.

A thermal conductive electromagnetic wave absorbing sheet to be provided includes: a polymer including acrylate ester as a monomer; a metal magnetic oxide; and flame retardant filler subjected to surface treatment. The metal magnetic oxide includes a small-diameter metal magnetic oxide with an average particle diameter of 1 to 10 &#x3bc;m and a large-diameter metal magnetic oxide with an average particle diameter of 50 to 100 &#x3bc;m. A mixing ratio between the small-diameter metal magnetic oxide and the large-diameter metal magnetic oxide is in a range of 9:13 to 15:7 in volume ratio. The small-diameter metal magnetic oxide and the large-diameter metal magnetic oxide are contained by 55 to 60 vol % in total in the entire thermal conductive electromagnetic wave absorbing sheet. The flame retardant filler subjected to the surface treatment is contained by 8 to 10 vol % in the entire thermal conductive electromagnetic wave absorbing sheet.

Thermal conductive electromagnetic wave absorbing sheet

There is provided a mold clamping apparatus that can prevent a molding material from spouting from a split surface of a mold even if in-cavity resin pressure causes offset of a mold opening force, and can extend the life of the mold. The mold clamping apparatus includes a control device that estimates a mold opening force by mold internal pressure for molding with mold internal pressure being asymmetrical with respect to a center of a mold block, determines a mold clamping hydraulic value applied to each tie bar correspondingly to the estimated mold opening force, and distributes hydraulic pressure supplied to each tie bar so that the determined mold clamping hydraulic value is reached.

Mold clamping apparatus

A method for analyzing injection molding conditions, which takes into consideration the compressibility of molten resin in a barrel and mechanical delays in resin flow caused by constituent elements of an injection molding machine and analysis results thereof are provided. In a method for analyzing injection molding conditions in which, by using input data having shape data () and injection conditions data () to perform flow analysis of the process of filling the inside of the mold with molten resin, analysis of the pressure maintenance process from the filling with molten resin to the gate sealing, and analysis of the cooling process within the mold after gate sealing, the pressure and temperature distributions of resin within the mold are calculated, data () regarding compressibility of molten resin held in the barrel of the cylinder and mechanical data caused by constituent elements of the injection molding machine are added to the input data.

Method of analyzing injection molding conditions

A motor-driven injection driving apparatus for an injection molding machine comprises a fixed frame having an injection cylinder first and second injection drive motors and first and second ball screw shafts first and second power transmission mechanisms for transmitting the rotational forces of the first and second injection drive motors to the first and second ball screw shafts respectively, while reducing the speed; and a movable frame provided with first and second ball screw nuts threaded on the first and second ball screw shafts respectively, and a screw drive motor and capable of being moved in the direction of injection together with an injection screw In the injection process, the movable frame is moved so that a tensile force acts on the first and second ball screw shafts

Motor-driven injection driving apparatus for an injection molding machine

A plasticizing screw for an injection molding machine or the like having one or more lands in a crest portion of a screw flight to prevent the screw flight from coming into contact with a cylinder wall surface when the plasticizing screw is rotated during a molding operation. The land has a smaller diameter than that of a crest portion of the screw flight and is provided at the screw flight crest portion either between leading and trailing surfaces of the screw flight or extending from the leading edge of the screw flight. The land can also be provided as a plurality of circumferentially spaced-apart lands on the side of a front surface of the screw flight, or provided at a central portion between the leading and trailing surfaces of the screw flight.

Growing community of inventors

Kasugai, Japan

Takashi Mizuno