Jamco Corporation

Ishikawajima-harima Jukogyo Kabushiki Kaisha

Jamco Technical Center Co., Ltd.

Shuntaro Kuriyama

Toru Kasai

Makoto Okamoto

Tsunehiko Nakano

Katsuhiko Umeda

Kazumi Asari

Masatada Yamashita

Keiichi Miwa

The invention provides a method for continuously forming a composite material shape member having a varied cross-sectional shape. A C-shaped movable moldhaving a center portionand both end portionsandwith a smaller surface dimension than the center portion is prepared, and prepreg sheets are laminated in advance to the both end portionsandand the center portion, then these plies of prepreg sheets are denoted as the laminate, so that the whole body has a flat planar surface. Prepreg sheetsare drawn out from rollsandand passed through a preforming deviceso that a C-shaped memberhaving a uniform cross-sectional shape is preformed. The movable moldwith pre-laminateis superposed to the preformed member, which is passed through a hot press device, an after-cure furnacewhere thermosetting of the member is completed, and then the movable moldis removed to complete a formed product.

Method for continuously forming composite material shape member having varied cross-sectional shape

The invention provides an improved method for forming a composite material mainly composed of carbon fiber. It is difficult to form an H-shaped structural member formed of a prepreg material having carbon fiber fabric impregnated with epoxy resin into a member having curvature. Thus, the structural member is divided into two bendable constructional elementsand, which are bent to given curvature then adhesively-bonded to form a structural member having curvature.

Method for continuously forming structural member

The invention provides a method for simultaneously forming a surface texturing pattern (embossed pattern) on the surface of an FRP product when manufacturing the FRP product by hot-pressing a prepreg material. A prepreg materialis a woven sheet formed by weaving a weftand a warpwhich is impregnated with thermosetting resin. A release film laminateformed by sandwiching an adhesive filmbetween release filmsandis placed on a surface to be provided with surface texturing, before subjecting the same to hot-pressing. The softening temperature of the adhesive filmis close to the curing temperature of the thermosetting resin, so as to allow the thermosetting resinto be pushed into the space between hard FRP fibers during hot-pressing and to form the surface texturing pattern on the surface of the member.

Method for manufacturing thermosetting fiber reinforced plastic

In a continuous molding apparatus equipped with a long corehaving a curvature disposed on a plane, a release film supplied from a lower release film feederis sent onto the core, and prepreg sheets supplied from a prepreg sheet feederare laminated thereon and preformed. A release film supplied from a release film feederis disposed on top of the laminated body, before the body is sent into a hot press. A pullermoves the laminated body without loading tension thereto. The laminated body enters a postcure devicein which thermosetting of the material is completed.

Method and apparatus for continuous molding of fiber reinforced plastic member with curvature

An apparatusfor continuously forming an FRP square pipe comprises a long corefor laminating prepreg sheets, and to this coreare fed prepreg sheets from prepreg laminating devicesandwith a release film interposed between the core, so as to be laminated into square pipe form. The corehas an outer diameter size smaller than the inner diameter size of the square pipe to be formed. The outer circumference of the square pipe is wrapped with a tape-like film fed from a tape-like release film wrapping devicein spiral fashion, and the work is heated and pressed in a hot pressThe work is then subjected to additional heating in a postcure furnaceto form the FRP square pipe. The square pipe is intermittently pulled by a pullerdisposed downstream of a clampThe pipe is then cut to predetermined lengths by a cutter not shown to be completed as a product.

Apparatus for continuously forming FRP square pipe

The present invention treats crushed pieces of a nonmetallic honeycomb panel together with a process water under high-temperature and high-pressure for a predetermined time so as to separate components. Water or alkali-added water is used as process water. The method comprises a first process for treating the crushed pieces for a predetermined time with the water heated and pressurized to a subcritical range to hydrolyze aromatic polyamide, and a second process for treating the same with the water heated and pressurized to a supercritical range, wherein the aromatic polyamide is hydrolyzed and separated in the first process, and dehalogenation is carried out in the second process.

Method for decomposing nonmetallic honeycomb panel, and method for recycling the same

A heater unit mounted on a tray utilizes a PTC heater having a positive temperature coefficient (PTC), and a sheet heater superposed thereto. The PTC heater includes PTC members buried within an insulating substrate and on both sides of the PTC members are placed copper foils functioning as electrodes. When the PTC heater is heated up to a preset temperature, the electric resistance of the heater is increased greatly, and the heating is stopped, maintaining the preset temperature. The sheet heater contributes to reduce the time the heater needs to rise to the preset temperature during initial startup.

Growing community of inventors

Tokyo, Japan

Shuntaro Kuriyama