B29C70/78

METHOD FOR SECURING CORE TO TOOL DURING MACHINING
20210060874 · 2021-03-04 · ·

A method for preparing a part using a rigid tool surface having a shape. The method includes applying a breather sheet comprising gas-permeable material over the rigid tool surface. A vacuum bag is applied over the breather sheet, and a vacuum pressure is applied underneath the vacuum bag to conform the breather sheet and the vacuum bag to the shape of the rigid tool surface. A resin pre-impregnated ply is applied over the vacuum bag, and the part is positioned over the ply.

COMPOSITE OF METAL AND CARBON-FIBER-REINFORCED PLASTIC AND METHOD FOR MANUFACTURING COMPOSITE OF METAL AND CARBON-FIBER-REINFORCED PLASTIC

A composite of metal and carbon-fiber-reinforced plastic according to the present invention comprising a predetermined metal member, a resin layer positioned at a surface of at least part of the metal member and containing an inorganic filler having a thermal conductivity of 20 W/(m.Math.K) or more, and carbon fiber reinforced plastic positioned on the resin layer and containing a predetermined matrix resin and carbon reinforcing fiber present in the matrix resin, the carbon reinforcing fiber being at least one of pitch-based carbon reinforcing fiber having a thermal conductivity of 180 to 900 W/(m.Math.K) in range or PAN-based carbon reinforcing fiber having a thermal conductivity of 100 to 200 W/(m.Math.K) in range, a content of the inorganic filler in the resin layer being 10 to 45 vol % in range with respect to a total volume of the resin layer, a number density of the inorganic filler present in a region of a width X m from an interface of the resin layer and the carbon fiber reinforced plastic in a direction of the resin layer being 300/mm.sup.2 or more, where X m is an average particle size of the inorganic filler.

COMPOSITE OF METAL AND CARBON-FIBER-REINFORCED PLASTIC AND METHOD FOR MANUFACTURING COMPOSITE OF METAL AND CARBON-FIBER-REINFORCED PLASTIC

A composite of metal and carbon-fiber-reinforced plastic according to the present invention comprising a predetermined metal member, a resin layer positioned at a surface of at least part of the metal member and containing an inorganic filler having a thermal conductivity of 20 W/(m.Math.K) or more, and carbon fiber reinforced plastic positioned on the resin layer and containing a predetermined matrix resin and carbon reinforcing fiber present in the matrix resin, the carbon reinforcing fiber being at least one of pitch-based carbon reinforcing fiber having a thermal conductivity of 180 to 900 W/(m.Math.K) in range or PAN-based carbon reinforcing fiber having a thermal conductivity of 100 to 200 W/(m.Math.K) in range, a content of the inorganic filler in the resin layer being 10 to 45 vol % in range with respect to a total volume of the resin layer, a number density of the inorganic filler present in a region of a width X m from an interface of the resin layer and the carbon fiber reinforced plastic in a direction of the resin layer being 300/mm.sup.2 or more, where X m is an average particle size of the inorganic filler.

RESIN MEMBER, RESIN MOLDED BODY, CARTRIDGE, IMAGE FORMING APPARATUS, AND METHOD FOR MANUFACTURING RESIN MEMBER
20210031498 · 2021-02-04 ·

A resin member includes a base material and a resin molded body disposed on the base material, the resin molded body containing a main component constituted by an ethylene-vinyl acetate copolymer resin and a carbon black. The resin molded body has two or more peaks within a range of 25 C. to 80 C. in an endothermic curve obtained through measurement performed by heating from 25 C. to 150 C. at 5 C./min with a differential scanning calorimetry (DSC) apparatus.

RESIN MEMBER, RESIN MOLDED BODY, CARTRIDGE, IMAGE FORMING APPARATUS, AND METHOD FOR MANUFACTURING RESIN MEMBER
20210031498 · 2021-02-04 ·

A resin member includes a base material and a resin molded body disposed on the base material, the resin molded body containing a main component constituted by an ethylene-vinyl acetate copolymer resin and a carbon black. The resin molded body has two or more peaks within a range of 25 C. to 80 C. in an endothermic curve obtained through measurement performed by heating from 25 C. to 150 C. at 5 C./min with a differential scanning calorimetry (DSC) apparatus.

MANUFACTURING METHOD FOR FIBER-REINFORCED PLASTIC COMPOSITE

Provided is a method for manufacturing a fiber-reinforced plastic composite containing a fiber-reinforced plastic part having a plate-like portion and a rib protruding from one surface of the plate-like portion, and a metal part, having an average thickness of 0.5-3.0 mm, laminated on part of or all of the plate-like portion of the fiber-reinforced plastic part, comprising: a lamination step for stacking a plurality of incised prepreg layers as a plurality of sheets of base material to form a base laminate, each prepreg layer containing unidirectionally oriented fibers and resin, and a plurality of incisions crossing the fibers, a base material heating step for heating the base laminate, and a molding step for integrating the base laminate and the metal part by pressing them between a rib molding member having a recessed portion for forming a rib and a skin molding member free of such a recessed portion in a pressing device.

MANUFACTURING METHOD FOR FIBER-REINFORCED PLASTIC COMPOSITE

Provided is a method for manufacturing a fiber-reinforced plastic composite containing a fiber-reinforced plastic part having a plate-like portion and a rib protruding from one surface of the plate-like portion, and a metal part, having an average thickness of 0.5-3.0 mm, laminated on part of or all of the plate-like portion of the fiber-reinforced plastic part, comprising: a lamination step for stacking a plurality of incised prepreg layers as a plurality of sheets of base material to form a base laminate, each prepreg layer containing unidirectionally oriented fibers and resin, and a plurality of incisions crossing the fibers, a base material heating step for heating the base laminate, and a molding step for integrating the base laminate and the metal part by pressing them between a rib molding member having a recessed portion for forming a rib and a skin molding member free of such a recessed portion in a pressing device.

ABILITY TO THREE-DIMENSIONALLY PRINT AN APERTURE MASK ON A MULTI SPECTRAL FILTER ARRAY
20210206156 · 2021-07-08 ·

A three-dimensional inkjet printer and method for printing an aperture mask on a multi-spectral filter array. A custom tray is used by the printer allowing for printing on a prefabricated filter array. Photopolymer resin is deposited on the prefabricated filter array to form the aperture mask of dark mirror coating. An ultraviolet lamp illuminates the deposited photopolymer resin on the surface of the prefabricated multi-spectral optical filter array to cure the resin, thereby forming the mask. The prefabricated multi-spectral optical filter array includes an optical coating on at least one side, the aperture mask being formed on the optical coating, without the use of heat, chemical etching, or deformation of the optical coating.

ABILITY TO THREE-DIMENSIONALLY PRINT AN APERTURE MASK ON A MULTI SPECTRAL FILTER ARRAY
20210206156 · 2021-07-08 ·

A three-dimensional inkjet printer and method for printing an aperture mask on a multi-spectral filter array. A custom tray is used by the printer allowing for printing on a prefabricated filter array. Photopolymer resin is deposited on the prefabricated filter array to form the aperture mask of dark mirror coating. An ultraviolet lamp illuminates the deposited photopolymer resin on the surface of the prefabricated multi-spectral optical filter array to cure the resin, thereby forming the mask. The prefabricated multi-spectral optical filter array includes an optical coating on at least one side, the aperture mask being formed on the optical coating, without the use of heat, chemical etching, or deformation of the optical coating.

Method of fabricating a composite material blade having an integrated metal leading edge for a gas turbine aeroengine
10899051 · 2021-01-26 · ·

A method of fabricating a blade of composite material having an incorporated metal leading edge for a gas turbine aeroengine, the method including in succession placing a metal strip for making the leading edge of a blade in a cavity of an injection mold for making the blade, closing the injection mold, injecting a thermoplastic resin under pressure into the cavity of the mold so as to shape and overmold the metal strip, compacting the assembly, solidifying the resin by regulating the temperature of the injection mold, and unmolding the resulting blade.