Mitsubishi Heavy Industries Limited

Mitsubishi Aircraft Corporation

Mitsubishi Heavy Industries Plastic Technology

Mitbushi Aircraft Corporation

Mitsubishi Heavy Industries Plastic Technology Co., Ltd.

Masahiro Bessho

Naomoto Ishikawa

Yuichiro Kamino

Wataru Nishimura

Toshikatsu Nohara

Toru Hashigami

Tamaki Tsuzuki

Naoki Toda

Toshio Hattori

Yasuhiro Tsubaki

Tsunetoshi Tanemura

Atsushi Suzuki

Toshihiko Kariya

Hideo Yamakoshi

Nobuyuki Kamihara

Kazuyuki Oguri

Hisashi Tanaka

Masahiro Kashiwagi

Takamitsu Himeno

Takeyasu Tarumi

Takayuki Kobayashi

Takayoshi Hamada

Satoshi Miyagawa

Yoshinori Watanabe

Hideo Kometani

Tetsuo Uwaji

Daisuke Ooi

Toshio Miki

Yoshitomo Sakakibara

Noritaka Hasegawa

Osamu Muranaka

Kimihiko Okamoto

Wataru Nihimura

Shiki Matsuo

Takahisa Masukawa

Takayuki Kobayasi

The present invention effects a reduction in production cost and increases yield of a transparent resin molded article and prevents the generation of defects such as bubbles, weld lines, and sink marks. This injection molding device (A) for a transparent resin molded article is equipped with: a die () for injection molding the transparent resin molded article; and a gate () that is provided to the peripheral edge of the die () and that is the inlet through which a resin material (R) is injected into the die (). The thickness dimensions (Ta) of the die () are in the range of 15-25 mm, and the ratio of the diameter dimensions (D) of the gate () to the thickness dimensions (Ta) of the die () is set in the range of 1:6 to 1:3.

Injection molding method and injection molding device for transparent resin molded article

A cap is applied to a securing structure part for securing structure elements using a fastener passed through through-holes formed in the structure elements, and a collar fastened to the tip part of the fastener. A filler engaging part for engaging a cured filler, configured with a female thread that turns about a center axis, is formed on the inner peripheral surface of the cap. The filler engaging part includes a first helical engagement part formed in the region near the cap inner part of the inner peripheral surface in the center axis direction; and a second helical engagement part formed in the region near the cap opening-end part in the center axis direction, the inner diameter of the second helical engagement part being greater than that of the first helical engagement part, and having a helical direction that is opposite to that of the first helical engagement part.

Cap and securing structure part using cap

There are provided a lightning-resistant fastener and a cap, which, while assuring sufficient insulation properties, provide improved workability and highly stable quality to thereby enable a reduction in the manufacturing cost of an airframe, and a method of mounting the lightning-resistant fastener. A holeis formed in a cap, and a screw grooveis formed in the hole. The configuration enables the capto be reliably and easily positioned and installed on a fastener memberand reliably prevents the capfrom coming off after the installation thereof. This improves the workability to reduce the production cost while assuring sufficient insulation properties and enables the capto be installed with stable quality irrespective of workers. Preferably, the capis made of a resin in view of mass producibility, weight reduction, and the like.

Lightning-resistant fastener, cap, and method of mounting lightning-resistant fastener

A method for manufacturing a fiber-reinforced composite material of the present invention includes: the step (a) of placing a non-woven fabric N made of a reinforcement fiber in a movable mold; and the step (b) of moving the movable moldtoward a fixed moldto close the mold and then injecting a thermoplastic resin into the mold to obtain a molded article formed of the non-woven fabric N and the thermoplastic resin. The mechanical strength of the obtained fiber-reinforced composite material can be enhanced by applying an injection compression molding process as the injection molding process in the step (b).

Method for manufacturing a fiber-reinforced composite material

A lightning-protection fastener is provided that is capable of reliably preventing peeling off of an insulation layer during the operation of an aircraft and improving the anti-lightning-strike capability and reliability. There is a lightning-protection fastener that fastens a skin of an aircraft and a structural member positioned inside the skin, in which an insulation layer is melt adhered so as to cover one end surface of a head portion and also to mechanically engage with a fastener-side engagement portion (engagement portion) formed on the end surface.

Lightning-protection fastener

There is provided a resin fan capable of enhancing the mechanical strength in a weld part in view of the direction of reinforcing fiber. On the outer peripheral surfaceof a cylindrical rib, convex partsare formed in the middle portions between the portions in which radial ribsadjoining each other are connected to the cylindrical rib. The cylindrical ribis formed so that the thickness T in the radial direction thereof is decreased gradually from the base partthereof toward the tip end part. Further, the height Hof the cylindrical ribis set so as to be larger than the height Hof the radial rib. Thereby, at the time of molding, the resin flows in the portions of the cylindrical riband the convex partsare complicated, and thereby the orientation of glass fiber mixed in the resin is complicated.

Resin fan

A lightning-resistant fastener, a cap, a fastener member, and a method for attaching the lightning-resistant fastener are provided, which enhance workability and quality stability besides reliably securing an insulating property, and can lead to enhancement in safety of an airframe and reduction in manufacturing cost. A head portionof a fastener main bodyincludes a head cap, and a shaft portionof the fastener main bodyincludes a shaft cap, whereby a direct strike of lightning to a fastener member, and occurrence of an arc discharge from the fastener memberin the case of a lightning strike can be suppressed. A holeis formed in the head cap, and a thread grooveis formed in the hole, whereby the head capcan be reliably and easily positioned and attached to the fastener member

Lightning-resistant fastener, cap, fastener member, and method for attaching lightning-resistant fastener

A mold temperature adjusting apparatus is provided in which change-over timing of high temperature medium and low temperature medium is adjusted by a heat transmission delay in heating and cooling of a mold being taken into consideration, so that a cycle time of molding steps is shortened, a temperature deflection from a set temperature of the high temperature and low temperature medium is reduced, an energy loss is reduced and an optimal mold temperature for an injection step can be obtained. The mold temperature adjusting apparatus comprises a high temperature fluid tank and a low temperature fluid tank, a high temperature fluid supply system and a high temperature fluid return system between the mold and the high temperature fluid tank, a low temperature fluid supply system and a low temperature fluid return system between the mold and the low temperature fluid tank, a high temperature fluid by-pass system and a low temperature fluid by-pass system, a heat recovery tank connected to the high temperature fluid tank and a pressure adjusting means.

Mold temperature adjusting method

The present invention is an organic halogen compound decomposition device which utilizes a plasma, wherein a stable and reliable ignition at operation commencement is possible, and where following ignition, a good plasma form can be maintained and stable operation is possible. The organic halogen compound decomposition device is equipped with a cylindrical waveguide made up of an outer conductor and an inner conductor , and a dual construction discharge tube made up of an inner tube and an outer tube which is provided inside the cylindrical waveguide and on an identical axis. Furthermore, a probe antenna formed from an extension of the inner conductor is positioned so as to encircle the discharge tube , and the tip of the inner tube is positioned further inwards than the tip of the probe antenna

Organic halogen compound decomposing device and operation control method therefor, and organic halogen compound decomposing method

A product gas generated through the decomposition reaction of organohalogen compounds and steam is neutralized with an alkali solution and is left to stand for a predetermined period of time, while a neutralization product generated in this neutralization reaction is caused to precipitate in the alkali solution and is then removed. In order to remove the neutralization product completely, a takeout tube is disposed to plunge into a waste gas processing tank and a disk-shaped plate is fastened at the distal end of the takeout tube in parallel to the bottom surface of the waste gas processing tank , while the takeout tube opens in the lower surface of the plate at the center thereof. Thus the solid-liquid separation efficiency of the neutralization product and the alkali solution is improved and the quantity of alkali solution remaining in the neutralization product that is disposed of as waste is decreased.

Method for decomposition-treating organic halogen compound and decomposing device

The present invention relates to a casting apparatus for formation of a resin-made membrane, which comprises a temperature adjusting unit (a temperature sensor, a heating wire type heater and a temperature controller) whereby an inner wall surface temperature of a suction chamber can be set to a desired temperature. Thus, if a design is made to prevent the temperature of the inner wall surface of the suction chamber from dropping, no contamination of the inner wall of the suction chamber by a volatile matter occurs, so that it is possible to prevent the volatile matter from dropping onto a cooling roll to make a membrane dirty.

Casting apparatus for formation of resin-made membrane

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Tokyo, Japan

Masahiro Bessho