A method is provided for configuring fluid in a programable fluid array which includes applying a sequence of magnetic fields to a movable fluidic network component; which includes a magnetic object to produce a force on the component. In one arrangement the fluid array includes a plurality of pre-formed channels and at least one property of at least one of said pre-formed channels is changed by the movable fluidic network component in another arrangement the fluid array comprises an injection molding system where the programmable fluid array is used to improve the speed and accuracy of the injection molding process and/or to additionally modify the shape and form of a molded object. In this arrangement the fluidic network component follows a path through the mold cavity determined at least in part by a sequence of magnetic fields and exerts a force on molding material therein.

A molding method includes providing a molding device, wherein the molding device includes a first mold and a second mold corresponding to the first mold; moving the first mold towards the second mold to form a first mold cavity; supplying a gas to the first mold cavity; injecting a material into the first mold cavity; and moving the first mold away from the second mold to form a second mold cavity and discharge at least a portion of the gas out of the molding device, wherein a first volume of the first mold cavity is substantially less than a second volume of the second mold cavity.

Provided is a method for manufacturing a fiber reinforced resin molded article capable of effectively reducing the occurrence of a preform with poor resin impregnation, and such a manufacturing device thereof. After it is detected that a predetermined amount (the same amount) of resin has been individually poured into a plurality of cavities provided in a mold, the fiber layers of preforms are impregnated (compressively filled) with resin. Pressure sensors for detecting a resin injection amount are used. When closing runners, a small gap is formed in the runners.

This molding method involves: a first step in which a perforation pin (2) is made to protrude into a cavity (13) in a mold (1); a second step in which a molten resin (16) is injected to fill the cavity (13) so as to envelop the protruding part of the perforation pin (2); a third step in which, in a state in which the resin (16) is in an uncured state, the perforation pin (2) is made to protrude further; and a fourth step in which the resin (16) is cured to obtain a molded resin article.

A vehicle interior and exterior member comprises a fiber molded body (2) and a synthetic resin member (4) fixed to a surface of the fiber molded body (2). The fiber molded body (2) has a fiber layer including thermoplastic synthetic resin (13) as a base material layer (11). The base material layer (11) has fiber layer surfaces on its both surfaces or, the base material layer (11) has another fiber layer including the other type of thermoplastic synthetic resin on one of the fiber layer surface to form a fiber laminated body. The fiber molded body (2) is formed by molding the fiber laminated body into a three-dimensional face shape. The synthetic resin member (4) has a fixed portion (6) which is fixed to the fiber molded body (2) by solidifying it in a state that molten synthetic resin has seeped into the fiber layer of the fiber laminated body.

A method of manufacturing an optical component having micro-structures is described. The method detects a crystallization temperature within a crystallization temperature interval for fully filling the molding material into a mold cavity to rapidly produce the optical element having a micro-structure with a large area.

A mold clamp control method for an injection molding machine having a toggle-type mold clamping mechanism. The mold clamp control method includes: a low-pressure mold clamping step that performs position hold control by which a crosshead is held in a set holding position in a state where a toggle link has been bent, when injection-filling is started; and a compression-press step that performs speed and position control by which the crosshead is advanced toward a set advancement position from the set holding position in a state where a first output upper limit value has been provided to a driving section. Advancement of the crosshead is continued in at least part of the compression-press step in a state where a generated output of the driving section is maintained at the first output upper limit value.

Provided are an injection mold and an injection molding method by which a boundary line between a first material and a second material curved so as to be sharply bent like a round chamfered shape can be formed reliably in a desired position, and a molded article molded using the injection mold and the injection molding method. The sum of a length w of an inclined-part forming part 51a and a length y of a thinned-part forming part 51b in a width direction of a linear part or a width direction of a curved part is at least equal to a prescribed value, and the thinned-part forming part 51b forming the curved part has a second length y longer than a first length in the width direction of the curved part.

Provided are an injection mold and an injection molding method by which a boundary line between a first material and a second material curved so as to be sharply bent like a round chamfered shape can be formed reliably in a desired position, and a molded article molded using the injection mold and the injection molding method. The sum of a length w of an inclined-part forming part 51a and a length y of a thinned-part forming part 51b in a width direction of a linear part or a width direction of a curved part is at least equal to a prescribed value, and the thinned-part forming part 51b forming the curved part has a second length y longer than a first length in the width direction of the curved part.

A method of manufacturing a unitary toothbrush head having a base and filaments extending therefrom. The method includes steps of injecting molten plastic material into a mold cavity having a pre-base cavity and a filament cavity extending therefrom; compressing the molten plastic material, once it is essentially filling the pre-base cavity, by impressing a punching tool into the molten plastic material from the rear side of the pre-base cavity being opposite to a side from which the filament cavity extends; and filling the filament cavity with the molten plastic material under the continuous impression of the punching tool.