Fukui Prefectural Government

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Fukui, Japan
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Patent
Fukui Prefectural Government | Date: 2015-03-23

An object is to provide a suction method and a suction device which depressurize the pressure of the surface of a target installed in an open system to a critical pressure or less and which thereby can suck it and a laser processing device and a laser processing method using these. In a state where a predetermined operating distance is apart from a target installed in an open system and a suction port, the pressure of an inside of a pressure reduction chamber communicating with the suction port is set equal to or less than a critical pressure at which the speed of a gas sucked from the suction port is brought into a critical state; the jet speed of the gas in a jetting port from which the gas is jetted toward the target is set more than a Mach number of 0.2, the Mach number being obtained by dividing a jet speed of the gas by the sound speed of the gas jetted from the jetting port, the gas is jetted from the jetting port and is sucked by the suction port; a swirl flow is formed so as to surround the suction port between the surface of the target and the suction port; and thus the pressure of a central region of the swirl flow from the suction port to the surface of the target is reduced to the critical pressure or less and suction is performed.


Patent
Fukui Prefectural Government | Date: 2017-05-17

The present invention is directed to provide a quasi-isotropic reinforced sheet material and a production method that can realize a preferable fluidity at molding, using a thin chopped semi prepreg sheet material. The quasi-isotropic reinforced sheet material T is formed by integrating a plurality of chopped semi prepreg sheet materials C including a reinforced fiber material and a thermoplastic resin material set in an unimpregnated state such that fiber directions of the reinforced fiber materials are oriented randomly in the two-dimensional direction. The chopped semi prepreg sheet materials C each have the average number of fibers in a thickness direction set in a range from two to ten and also a thickness t set, relative to the thickness (t_(p)) in an impregnated state, in a range of t_(p) < t 2t_(p), and include a layered body M obtained by bonding and integrating the plurality of chopped semi prepreg sheet materials C in a state where fiber directions of the reinforced fiber materials are oriented randomly in a two-dimensional direction and also the plurality of chopped semi prepreg sheet materials is overlapped with each other such that the average number of the chopped semi prepreg sheet materials in the thickness direction is set in a range from two to ten.


Patent
Fukui Prefectural Government | Date: 2015-01-05

Provided is a high-pressure casting method and a high-pressure casting device which are capable of safe and high-quality casting of a high-fusion-point metal having a fusion point exceeding 1000 K. After melting a casting material (1) inside a melting container (2) of cartridge type, the melting container (2) is linearly moved to pass through a guide (14) attached to a casting port bush (13) to thereby be communicated with the casting port bush (13). The melting container (2) is brought into close contact with the guide (14) and is setting to a cooling state. After the elapse of prescribed time, a plunger (50) is brought into contact with a plunger tip (4), and is immediately transferred together with a molten metal to the casting port bush (13). The molten metal is pressurized inside the casting port bush (13), and is injection-filled into a cavity (10).


Patent
Fukui Prefectural Government | Date: 2015-08-04

A method for deriving the position of a pushing roll, applied even when there is a difference between the actual processed shape and a theoretical solution (a numerical analysis solution) due to changes in a state of a processing machine or the bending characteristic of the material to be processed. The rolls have a pyramid-like shape, and the operation amount of a pushing roll is changed while continuously feeding a material, thereby bending the material. Also, for each position of the fixed pushing roll, the radius of curvature of the material is measured and the bending characteristic is grasped in advance. From the design shape, the radius of curvature and the operation amount for bringing the pushing roll into contact are obtained. The operation amount of the pushing roll is then determined.


Patent
Fukui Prefectural Government | Date: 2015-07-03

A quasi-isotropic reinforced sheet material T formed by integrating a plurality of chopped semi prepreg sheet materials C including a reinforced fiber material and a thermoplastic resin material set in an unimpregnated state such that fiber directions of the reinforced fiber materials are oriented randomly in the two-dimensional direction. The average number of fibers in a thickness direction for materials C ranges is from two to ten and a thickness t, relative to the thickness (t_(p)) in an impregnated state, is in a range of t_(p)


Patent
Seiren Co. and Fukui Prefectural Government | Date: 2017-06-07

The present invention has an object of providing a combined filament yarn having a favorable quality in which a synthetic fiber material is dispersed in and combined with a reinforcing fiber material, and a manufacturing method thereof. In the combined filament yarn, with the reinforcing fiber material arranged in a predetermined direction, the synthetic fiber material arranged in the same direction as that of the reinforcing fiber material is combined, the synthetic fiber material is bonded to and integrated with the reinforcing fiber material, and the synthetic fiber material is dispersed so that a standard deviation relating to a rate of a sectional area of the synthetic fiber material in a divided region obtained by dividing a section of the combined filament yarn becomes 25 or less.


Patent
Fukui Prefectural Government, Tomoda and Hokushin Co. | Date: 2016-02-24

The present invention has an object to provide a method and a device for opening a fiber bundle, capable of performing a fluctuating operation, at a high speed, of pushing a part of a conveyed fiber bundle by a contact member into a stress state and then separating the contact member from the fiber bundle so as to temporarily relax the fiber bundle, and also capable of reducing damage to the fiber bundle. The device for opening a fiber bundle includes a conveying portion 5 for pulling out a fiber bundle Tm from a yarn feeding body 11 and conveying it in a fiber length direction, a fiber-opening processing portion 3 for opening the fiber bundle by moving a fiber in a width direction while bending the fiber by letting a fluid pass through the conveyed fiber bundle Tm, and a fluctuation imparting portion 4 for rotating a contact member 42 in a direction inclined with respect to a conveyance direction while bringing it into contact with the conveyed fiber bundle Tm and pushing a part of the fiber bundle Tm into a stress state, and then separating the contact member 42 from the fiber bundle Tm in the stress state so as to temporarily bring the fiber bundle Tm into a relaxed state.


Patent
Hatta Tateami Co., Toyo Senko & Co. and Fukui Prefectural Government | Date: 2015-07-29

An object of the present invention is to provide a thermoplastic resin reinforced sheet material that easily corresponds to a Vf value and that is prevented from being curled and a method for manufacturing such a thermoplastic resin reinforced sheet material. The thermoplastic resin reinforced sheet material (1) includes: a reinforced fiber sheet material (2) which is formed into a sheet shape by drawing and aligning a plurality of reinforcing fibers in a predetermined direction and whose weight per unit area is 80 g/m^(2) or less; a fabric (3) which is formed of a thermoplastic resin fiber material having a fineness of 5.6 decitex to 84 decitex and whose basis weight per unit area is 5 g/m^(2) to 90 g/m^(2); and a thermoplastic resin material for bonding (4) which is melted or softened at a temperature lower than a melting temperature of the fabric (3) and which discretely causes the reinforced fiber sheet material (2) and the fabric (3) to adhere.


Patent
Honda Corporation and Fukui Prefectural Government | Date: 2015-12-10

A matrix material for a carbon fiber-reinforced composite comprises a matrix resin as a resin component. The matrix resin contains both a first epoxy resin and a second epoxy resin or only the first epoxy resin, further contains a third epoxy resin, and has an average epoxy equivalent weight of 109 to 162. The first epoxy resin contains a polyfunctional glycidylamine-type epoxy resin. The second epoxy resin contains at least one of a p-aminophenol-type epoxy resin and a tetramethylbiphenol-type solid epoxy resin. The third epoxy resin contains a bisphenol A-type epoxy resin having a weight-average molecular weight of 8000.


Patent
Fukui Prefectural Government | Date: 2016-02-03

The present invention has an object to provide a laminated molded body in which a thin fiber reinforced layer is laminated and having a favorable strength characteristic. The laminated molded body (1) includes a laminated portion (a laminated portion of SR_(1) on an upper side and SR_(1), for example) in which fiber reinforced layers SR_(1) to SR_(n), each having a thickness of 20 to 80 m in which a reinforcing fiber material is dispersed in a thermosetting resin material which serves as a matrix, are laminated, and a laminated portion in which a resin layer is laminated between the fiber reinforced layers (a laminated portion of SR_(2) on the upper side, TP_(1), and SR_(3), for example).

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