The Japan Steel Works, Ltd.

Daikyo Co., Ltd.

Other

Olympus Optical Company, Ltd.

Hosokawa Yoko Co., Ltd.

Gp Daikyo Corporation

Plalead Co., Ltd.

Shoso Nishida

Yoshihiro Takemoto

Akira Yasue

Shinji Gasami

Kazuya Tsuji

Kazuki Fujita

Akio Ono

Hiroshi Ito

Yoshifumi Iwata

Yasufumi Fujita

Takuya Niyama

Hideki Chiba

Daisuke Kunihiro

Toru Ichikawa

Shigeki Inoue

Takashi Uemura

Ryuki Sakamoto

Daigo Saga

Koki Abe

Akihiro Naito

Masahiko Taketani

Michinori Nishida

Hiroshi Yonekubo

Kaoru Maeda

Yukihiro Sumihiro

Kenji Kikukawa

Takashi Harada

Yusuke Shiotani

Tetsuo Suga

Kazuo Saito

A melting heater configured to melt joining end surfaces of a pair of semi-molded products in a case where the joining end surfaces are melted and joined to manufacture a molded product, the melting heater including: two glass plates arranged in parallel to each other; and a plurality of element heaters arranged in a unit having a flat plate shape as a whole between the two glass plates, in which the glass plate is subjected to surface processing for controlling infrared rays emitted from the plurality of element heaters.

Melting heater and method for manufacturing molded product

The present invention provides a kneading method for a fiber-reinforced thermoplastic resin with which dispersibility of reinforcement fibers is enhanced and sufficient reinforcement fibers having a proper fiber length remain, and a fiber-reinforced thermoplastic resin plasticizing device and an extruding machine for carrying out the method. The kneading method comprises supplying a thermoplastic resin and reinforcement fibers into a cylinder of a plasticizing device, and rotating a screw to obtain a fiber-reinforced thermoplastic resin, wherein the size of a clearance between the bore of the cylinder and the screw is made different between an upstream side in the vicinity of a reinforcement fiber loading port and a downstream side, so that the clearance becomes larger from the vicinity of the reinforcement fiber loading port toward the downstream side compared with the upstream side.

Kneading method for fiber-reinforced thermoplastic resin, plasticizing device, and extruding machine

The present invention addresses the problem of providing a molding method capable of molding a molded article having excellent strength and reducing manufacturing costs by shortening a molding cycle when obtaining a molded article from a fiber-reinforced thermoplastic resin by compression molding. The present invention relates to a molding method which obtains a fiber-reinforced thermoplastic resin by kneading a thermoplastic resin and a reinforcing fiber (), and a molded article from the fiber-reinforced thermoplastic resin by compression molding. The molding method of the molded article comprising the fiber-reinforced thermoplastic resin according to the present invention comprises: a molding step for obtaining a first molded article from a predetermined amount of a fiber-reinforced thermoplastic resin through a molding die (); a carrying-in step for opening the molding die (), taking out the first molded article, and inserting the first molded article into a cooling die (); and a compression cooling step for cooling the first molded article by compressing the first molded article through the cooling die ().

Molding method and molding apparatus of molded article comprising fiber-reinforced thermoplastic resin

[Problem] To provide an injection apparatus including a flow path switching mechanism that is simple in construction and low in cost. [Solution] An injection apparatus () includes a plasticization device () for melting resin, a first and second plunger injection devices () for measuring an amount of resin and injecting the resin, an injecting portion (), and a flow path switching block () that connects the plasticization device, the first and second plunger injection devices and the injecting portion together. A first to fourth connecting flow paths () and a flow path switching valve () are provided in the flow path switching block (). The plasticization device (), the first plunger injection device (), the injecting portion () and the second plunger injection device () are connected to the first to fourth connecting flow paths (), respectively. When the flow path switching valve () is switched to a first position, the first and second connecting flow paths () communicate with each other, and the third and fourth connecting flow paths () communicate with each other, whereas when the flow path switching valve () is switched to a second position, the first and fourth connecting flow paths () communicate with each other and the first and third connecting flow paths () communicate with each other.

Injection device provided with flow path switching block

The present invention provides a method for manufacturing a fiber-reinforced resin substrate or a resin molded body, the method being capable of effectively performing impregnation of a reinforcing fiber material with a thermoplastic resin and having high productivity and economical efficiency, and an extruder for use in the manufacturing method. The manufacturing method of the invention is a method for manufacturing a fiber-reinforced resin substrate or resin molded body obtained by impregnating a reinforcing fiber material with a thermoplastic resin, including placing the reinforcing fiber material on a molten resin of the thermoplastic resin and pressurizing the same to impregnate the reinforcing fiber material with the molten thermoplastic resin, and subsequently, cooling and solidifying the reinforcing fiber material impregnated with the molten thermoplastic resin.

Manufacturing method for fibre-reinforced resin substrate or resin molded article

The method for attaching a thin cylindrical element to a mold core is a method for attaching a film-like thin cylindrical element, which is formed in a cylindrical shape having a constant cross-sectional shape, to an outer surface of a mold core in a manner so as to cover the mold core. The method includes pressing the thin cylindrical element onto a tip portion of the mold core; guiding the thin cylindrical element to the base end side of the mold core while ejecting gas into between the mold core and the thin cylindrical element; and attaching the thin cylindrical element to the outer surface of the mold core in a manner so as to cover the mold core.

Method for attaching thin cylindrical element to mold core

A production method for a fiber-reinforced component according to the present invention includes: a step 1, in which a melt of a thermoplastic resin is formed in a lower die, a mat-shaped material formed from a reinforcing fiber B is placed on the melt, an upper die for pressing is closed on the lower die and is pressed, and an impregnation treatment is performed, and then, the mat-shaped material impregnated with the resin is cooled and solidified, whereby a main body part formed from a fiber-reinforced resin is molded; and a step 2, in which the upper die for pressing is opened, an upper die for injection molding is closed on the lower die to form an injection molding die, and then, injection molding is performed to form an additional part, whereby a fiber-reinforced component having the additional part combined with the main body part is molded.

Production method for fiber-reinforced component

An apparatus for manufacturing a molded product, which has a highly homogeneous thin film, at low cost by operating an injection molding machine and a film forming device at a high rate of operation is provided. A molded product formed by an injection molding machine is conveyed to a temporary stage by a first conveying device. The molded products corresponding to several times of an injection molding step are pooled on the temporary stage by the repetition of an injection molding step. A second conveying device collectively conveys all the molded products, which are pooled on the temporary stage, to a film forming device. Films are formed on the molded products by the film forming device, and the molded products are conveyed to the outside by a third conveying device. The injection molding step is continuously performed while a film forming step is performed.

Apparatus including a fixed temporary stage for manufacturing molded product

A method of deposition is provided in which a deposition operation can be immediately performed when a workpiece for deposition is carried into a deposition chamber irrespective of a shape or a structure of the workpiece for deposition. The workpiece for deposition is integrally molded with an assisting member, which is configured to maintain the workpiece for deposition in a predetermined orientation such that a deposition surface or a deposition portion thereof faces a target material when the workpiece for deposition is carried into a deposition chamber and is placed on a deposition stand, when the workpiece for deposition is injection-molded; and the workpiece for deposition is carried into the deposition chamber and is deposited.

Method of deposition

A movable mold and a slide mold are employed. There is also employed a deposition apparatus which is equipped with a deposition element such as a target electrode in the inside of a depositing chamber. A body portion and a cover member are primarily molded by the movable mold and the slide mold. The molds are opened while the body portion being left in the movable mold and while cover member being left in slide mold. The body portion left in the movable mold is deposited in the molds with its inner surface being covered with the depositing chamber. Next, the slide mold is driven so that the cover member may be registered with the deposited body portion. Then, a secondary molding resin is injected to integrate the body portion and the cover member.

Hollow moldings having thin film on inner surface

Method and apparatus for forming hollow moldings having thin film on inner surface

The method employs a stationary mold having depositing recesses equipped in its inside with a deposition element such as a target electrode, and movable molds made slidable. A primary molding is performed to form a body portion and a cover member to have joint portions around their opening. The body portion left in the vertically sliding mold is deposited after it was densely covered with the depositing recesses. Next, the deposited body portion and the cover member, as left in the molds, are registered and mold clamped, and the molten metal is injected to integrated the joint portions.

Method for forming hollow moldings having thin film on inner surface

A molding apparatus is configured by a first, a second sliding die, a first, a second fixed die, and a sliding film forming chamber. The first, the second sliding dies are moved in directions reverse to each other to take a primary molding position, a film forming position and a secondary molding position. The sliding film forming chamber includes a first, a second masking plate and are arranged to be remote from the first, the second fixed dies. Further, the sliding film forming chamber is slid in an up and down direction. The first, the second sliding dies are respectively formed with recess portions and cores, the first, the second fixed dies are respectively formed with cores and recess portions.

Molding method and molding apparatus of mold product having thin film at inner surface

A molding method involves a first and a second sliding die, a first and a second fixed die, and a sliding film forming chamber. The first, the second sliding dies are moved in directions reverse to each other to take a primary molding position, a film forming position and a secondary molding position. The sliding film forming chamber includes a first, a second masking plate and are arranged to be remote from the first, the second fixed dies. Further, the sliding film forming chamber is slid in an up and down direction. The first, the second sliding dies are respectively formed with recess portions and cores, the first, the second fixed dies are respectively formed with cores and recess portions.

Growing community of inventors

Hiroshima, Japan

Shoso Nishida