An injection molding system includes a first unit in which an injection molding machine is disposed and an option unit. The injection molding machine is configured to be attachable with a stationary die and a movable die that moves with respect to the stationary die. The option unit includes at least one of a second unit in which a robot that moves a molded article molded by the injection molding machine is disposed and a third unit in which at least one of a material drier that dries a material supplied to the injection molding machine and a material supply section that supplies the material to the injection molding machine is disposed. The first unit is configured to be detachably attachable with the option unit.

A subject of the invention is a process for surfacing or resurfacing a metal part by laser-assisted deposition of a filler material in order to produce an abradable coating of the part, the process being characterized in that the filler material is an iron-based powder comprising vanadium, chromium, nickel, boron, silicon and carbon, in that the laser has an operational wavelength ranging from 900 nm to 1100 nm and in that it comprises the irradiation of the part by a laser beam such that the specific energy (SE) varies from 5 J/mg to 10 J/mg and such that the linear density (LD) varies from 25 mg/mm to 55 mg/mm. Another subject of the invention is the surfaced or resurfaced metal part. Another subject of the invention is a pre-alloy in iron-based powder form, comprising vanadium, chromium, nickel, boron, silicon and carbon.

A subject of the invention is a process for surfacing or resurfacing a metal part by laser-assisted deposition of a filler material in order to produce an abradable coating of the part, the process being characterized in that the filler material is an iron-based powder comprising vanadium, chromium, nickel, boron, silicon and carbon, in that the laser has an operational wavelength ranging from 900 nm to 1100 nm and in that it comprises the irradiation of the part by a laser beam such that the specific energy (SE) varies from 5 J/mg to 10 J/mg and such that the linear density (LD) varies from 25 mg/mm to 55 mg/mm. Another subject of the invention is the surfaced or resurfaced metal part. Another subject of the invention is a pre-alloy in iron-based powder form, comprising vanadium, chromium, nickel, boron, silicon and carbon.

In an injection molding method, using a heating cylinder having on the front end thereof a discharge nozzle, a single axis screw is rotatable inside the heating cylinder, a fiber-supplying device fills reinforcing fiber into the heating cylinder, and injection molding is performed while supplying the reinforcing fiber and the resin starting material separately and supplying the reinforcing fiber on the front side of the resin starting material. The method includes a plasticization process for obtaining a specified amount of a kneaded product by retracting the screw while rotating in the normal direction to melt the resin starting material and knead reinforcing fiber into the melted resin starting material, and an injection process for discharging the kneaded product from the discharge nozzle by advancing the screw. Reinforcing fiber is supplied into the heating cylinder in the injection process.

In an injection molding method, using a heating cylinder having on the front end thereof a discharge nozzle, a single axis screw is rotatable inside the heating cylinder, a fiber-supplying device fills reinforcing fiber into the heating cylinder, and injection molding is performed while supplying the reinforcing fiber and the resin starting material separately and supplying the reinforcing fiber on the front side of the resin starting material. The method includes a plasticization process for obtaining a specified amount of a kneaded product by retracting the screw while rotating in the normal direction to melt the resin starting material and knead reinforcing fiber into the melted resin starting material, and an injection process for discharging the kneaded product from the discharge nozzle by advancing the screw. Reinforcing fiber is supplied into the heating cylinder in the injection process.

Provided are a carbon fiber composite material having high strength and elasticity and containing recycled carbon fibers, and a method for producing same. When a raw material is transported along the outer circumferential surface of a screw main body 37 having a passage 88 therein, the transport of the raw material is restricted by a barrier portion 82 provided on the outer circumferential surface, a shearing force is applied to the raw material by the screw main body 37, and a stretching force is applied to the raw material by passing the raw material from the inlet 91 of the passage 88 provided on the outer circumferential surface to the outlet 92 of the passage 88, thereby obtaining a carbon fiber composite material having good strength and elasticity and containing 50-70 wt % of recycled carbon fibers well dispersed therein.

Provided are a carbon fiber composite material having high strength and elasticity and containing recycled carbon fibers, and a method for producing same. When a raw material is transported along the outer circumferential surface of a screw main body 37 having a passage 88 therein, the transport of the raw material is restricted by a barrier portion 82 provided on the outer circumferential surface, a shearing force is applied to the raw material by the screw main body 37, and a stretching force is applied to the raw material by passing the raw material from the inlet 91 of the passage 88 provided on the outer circumferential surface to the outlet 92 of the passage 88, thereby obtaining a carbon fiber composite material having good strength and elasticity and containing 50-70 wt % of recycled carbon fibers well dispersed therein.

Provided are a molding screw and an FBI molding machine using the same for manufacturing resin molded articles for reduced manufacturing variation with use of a resin powder, an additive, and a mixture material constituted by an inorganic material or an organic material. The molding screw can include a feeding portion for feeding a molding material, a compressing portion, and a metering portion that extend continuously from the feeding portion. The feeding portion and the compressing portion each can be provided with a spiral flight. The flight of the compressing portion can include multiple sub flights that extend in a spiral manner in a screw axis direction. The sub flights can each have a polygonal shape with rounded corner portions, and are arranged such that the corner portions are shifted by a set angle with respect to the screw axis.

Provided are a molding screw and an FBI molding machine using the same for manufacturing resin molded articles for reduced manufacturing variation with use of a resin powder, an additive, and a mixture material constituted by an inorganic material or an organic material. The molding screw can include a feeding portion for feeding a molding material, a compressing portion, and a metering portion that extend continuously from the feeding portion. The feeding portion and the compressing portion each can be provided with a spiral flight. The flight of the compressing portion can include multiple sub flights that extend in a spiral manner in a screw axis direction. The sub flights can each have a polygonal shape with rounded corner portions, and are arranged such that the corner portions are shifted by a set angle with respect to the screw axis.

A plasticizing apparatus, includes: a drive motor; a rotor that is rotated around a rotation axis by the drive motor and that has a groove forming surface on which a groove is formed; a barrel that has a facing surface facing the groove forming surface and that includes a communication hole in the facing surface; a heating portion that heats a material supplied to between the groove and the barrel; and a controller that controls the drive motor and the heating portion to plasticize the material supplied to between the groove and the barrel and discharge the material from the communication hole, the facing surface includes a first region and a second region that is closer to the communication hole than is the first region, the controller controls the heating portion to set a temperature of the second region to be higher than a temperature of the first region, and the controller controls the heating portion to reduce a temperature difference between the first region and the second region when the material includes a crystalline resin as compared with a case where the material includes an amorphous resin.