Abstract: A production apparatus includes the following stations juxtaposed in the following sequence: a parison forming station for forming a parison; a built-in part attachment station where opposite sides of a center die provided with a built-in part are held between a pair of molding dies to locate the center die in the molding dies with the parison between the center die and the molding dies, and the built-in part being attached to the parison transferred to the molding dies; a molding station where the molding dies are closed to mold the hollow molded product; and a conveyance station for taking the hollow molded product out of the molding dies and conveying the hollow molded product. The center die is fixed at the built-in part attachment station, and the molding dies are configured to be movable back and forth between the built-in part attachment station and the molding station.
Type:
Grant
Filed:
April 29, 2016
Date of Patent:
October 11, 2016
Assignees:
YACHIYO INDUSTRY CO., LTD., THE JAPAN STEEL WORKS, LTD.
Abstract: A screw extruder for industrially mass-producing a cellulose-containing composition having a high saccharification performance by continuously conducting pretreatment of cellulose-containing biomass to pretreatment, which screw extruder is characterized as including a raw-material feed portion, a pulverization section, a heating section and a cooling section, and having a plurality of seal rings arranged in the heating section.
Type:
Application
Filed:
September 9, 2014
Publication date:
September 8, 2016
Applicants:
SHOWA DENKO K.K., THE JAPAN STEEL WORKS, LTD.
Abstract: A production method for a fiber-reinforced component according to the present invention includes: a step 1, in which a melt of a thermoplastic resin is formed in a lower die, a mat-shaped material formed from a reinforcing fiber B is placed on the melt, an upper die for pressing is closed on the lower die and is pressed, and an impregnation treatment is performed, and then, the mat-shaped material impregnated with the resin is cooled and solidified, whereby a main body part formed from a fiber-reinforced resin is molded; and a step 2, in which the upper die for pressing is opened, an upper die for injection molding is closed on the lower die to form an injection molding die, and then, injection molding is performed to form an additional part, whereby a fiber-reinforced component having the additional part combined with the main body part is molded.
Abstract: A cylindrical screw feeder main body, catalyst feeding portions for introducing a catalyst into the screw feeder main body, low hydrocarbon feeding portions for introducing a low hydrocarbon into the screw feeder main body as a raw material, a screw for conveying the catalyst and nanocarbon produced by pyrolysis of the low hydrocarbon in the feeder main body, a solid matter discharging portion for discharging the catalyst and the nanocarbon conveyed by the screw out of the screw feeder main body and a gas discharging portion for discharging the unreacted low hydrocarbon and hydrogen produced by the pyrolysis of the low hydrocarbon out of the screw feeder main body are provided. Nanocarbon grown with the catalyst as top with time is continuously discharged out of the screw feeder main body while unused catalyst is being fed thereto at the same amount as that of nanocarbon, allowing efficient continuous reaction.
Type:
Grant
Filed:
November 3, 2008
Date of Patent:
August 2, 2016
Assignees:
National University Corporation Kitami Institute of Technology, THE JAPAN STEEL WORKS, LTD., KAJIMA CORPORATION
Abstract: A twin screw extruder (10) according to the present invention is a twin screw extruder (10), in which a reinforcing fiber is fed through an input port (18) into a molten thermoplastic resin having been formed in a resin feed part (13) and the reinforcing fiber and the molten thermoplastic resin pass through a kneading part (15) so that a fiber-reinforced resin composition is manufactured, wherein the kneading part (14) is provided at the discharge-side end part of the extruder (10); a conveying part (14) is provided between the input port (18) and the kneading part (15), and tip clearance (Sc) of a screw element (12b) configuring the conveying part (14) is larger than screw clearance (Ss).
Type:
Application
Filed:
August 15, 2014
Publication date:
July 28, 2016
Applicant:
THE JAPAN STEEL WORKS, LTD.
Inventors:
Daigo SAGA, Jun KAKIZAKI, Toshifumi OHASHI
Abstract: A synthesis gas and nanocarbon production method has a lower hydrocarbon decomposition step for decomposing lower hydrocarbon to produce hydrogen and nanocarbon, a carbon dioxide reduction step for reacting a part of the nanocarbon produced with carbon dioxide to produce carbon monoxide, and a mixing step for mixing the hydrogen and carbon monoxide produced in a predetermined ratio, thereby nanocarbon and a synthesis gas having a desired gas ratio can be simultaneously produced easily.
Type:
Application
Filed:
March 23, 2016
Publication date:
July 14, 2016
Applicants:
THE JAPAN STEEL WORKS, LTD., National University Corporation Kitami Institute of Technology
Abstract: A production apparatus includes the following stations juxtaposed in the following sequence: a parison forming station for forming a parison; a built-in part attachment station where opposite sides of a center die provided with a built-in part are held between a pair of molding dies to locate the center die in the molding dies with the parison between the center die and the molding dies, and the built-in part being attached to the parison transferred to the molding dies; a molding station where the molding dies are closed to mold the hollow molded product; and a conveyance station for taking the hollow molded product out of the molding dies and conveying the hollow molded product. The center die is fixed at the built-in part attachment station, and the molding dies are configured to be movable back and forth between the built-in part attachment station and the molding station.
Type:
Grant
Filed:
March 9, 2012
Date of Patent:
June 7, 2016
Assignees:
YACHIYO INDUSTRY CO., LTD., THE JAPAN STEEL WORKS, LTD.
Abstract: A simulation apparatus includes an 1D analysis unit which performs a low-dimensional fluid-flow analysis of material in an arithmetic object field of a kneading device, based on setting information including physical property of the material, and configuration data and an operation condition of the kneading device for kneading the material, an area selection unit which receives selection of an object area as an object of a high-dimensional fluid-flow analysis in the arithmetic object field, and a 3D analysis unit which extracts physical quantities of the material relating to the object area, based on a result of the low-dimensional fluid-flow analysis, and performs a high-dimensional fluid-flow analysis of the material in the object area, based on the extracted physical quantities and the setting information.
Abstract: A method for producing a cellulose nanofiber-containing polyolefin microporous stretched film according to the invention includes: a first step of obtaining a cellulose powder dispersion mixture by uniformly dispersing a cellulose which has a powder particle shape and whose hydroxyl groups have been subjected to a lipophilizing treatment using a dibasic acid anhydride, in a plasticizer; a second step of melt-kneading the cellulose powder dispersion mixture and a polyolefin to obtain a polyolefin resin composition; a third step of extrusion-molding the polyolefin resin composition to obtain an extrudate; a fourth step of stretching the extrudate with a film stretcher to obtain a film; a fifth step of extracting out the plasticizer from the film; and a sixth step of thermally fixing the film from which the plasticizer has been extracted out for inhibiting contraction, while stretching the film at a temperature not higher than a melting point of the polyolefin, in which a twin-screw kneading extruder is used onl
Abstract: A synthesis gas and nanocarbon production method has a lower hydrocarbon decomposition step for decomposing lower hydrocarbon to produce hydrogen and nanocarbon, a carbon dioxide reduction step for reacting a part of the nanocarbon produced with carbon dioxide to produce carbon monoxide, and a mixing step for mixing the hydrogen and carbon monoxide produced in a predetermined ratio, thereby nanocarbon and a synthesis gas having a desired gas ratio can be simultaneously produced easily.
Type:
Grant
Filed:
March 9, 2012
Date of Patent:
May 3, 2016
Assignees:
THE JAPAN STEEL WORKS, LTD., National Univeristy Corporation Kitami Institute of Technology
Abstract: The present invention provides a production method and the like of a microporous stretched film having a high puncture strength and the like. The method includes: a first step of melt-kneading a cellulose nanofiber and a polyolefin resin to thereby disperse the nanofiber in the resin; a second step of removing water from a kneaded mixture obtained in the first step; a third step of mixing a plasticizer in the nanofiber and the resin and melt-kneading them to prepare a polyolefin resin composition; a fourth step of extrusion-molding the polyolefin resin composition; a fifth step of stretching an extrusion-molded article obtained in the fourth step to form a film; and a sixth step of extracting the plasticizer from the film.
Abstract: A heat resistant cast steel containing, in mass %, C: 0.05-0.15, Si: 0.03-0.2, Mn: 0.1-1.5, Ni: 0.1-1, Cr: 8-10.5, Mo: 0.2-1.5, V: 0.1-0.3, Co: 0.1-5, W: 0.1-5, N: 0.005-0.03, Nb: 0.01-0.2, B: 0.002-0.015, Ti: 0.01-0.1, Fe and unavoidable impurities. A method for manufacturing a heat resistant cast steel, the method including melting raw materials to obtain a molten metal, refining and degassing the molten metal, pouring the molten metal into a predetermined mold to form a shape, performing an annealing treatment at a temperature of 1000 to 1150° C., performing a normalizing treatment at a temperature of 1000 to 1200° C., performing a first stage tempering treatment at a temperature of 500 to 700° C., and performing a second stage tempering treatment at a temperature of 700 to 780° C.
Type:
Grant
Filed:
December 23, 2011
Date of Patent:
March 15, 2016
Assignees:
KABUSHIKI KAISHA TOSHIBA, THE JAPAN STEEL WORKS, LTD.
Abstract: A subject for the invention is to diminish the occurrence of streak-type segregation in producing a material comprising a Ni-based superalloy. The invention relates to a Ni-based superalloy having excellent unsusceptibility to segregation, characterized by comprising: 0.005 to 0.15 mass % of C; 8 to 22 mass % of Cr; 5 to 30 mass % of Co; equal or greater than 1 and less than 9 mass % of Mo; 5 to 21 mass % of W; 0.1 to 2.0 mass % of Al; 0.3 to 2.5 mass % of Ti; up to 0.015 mass % of B; and up to 0.01 mass % of Mg, with the remainder comprising Ni and unavoidable impurities.
Type:
Application
Filed:
October 19, 2015
Publication date:
February 11, 2016
Applicants:
THE JAPAN STEEL WORKS, LTD., MITSUBISHI HEAVY INDUSTRIES, LTD.
Abstract: An object of the invention is to provide a granulation method and a granulation apparatus that can reduce the manufacturing costs of pellets. There is provided a granulation method which uses an underwater cutting (UWC) device 107 that cuts a medium to be processed extruded from holes of a die 106 by using cutter blades provided in a circulation box 109 and conveys the cut pellets from the circulation box 109 while cooling the cut pellets by pellet cooling/transport water (PCW). The granulation method includes circulating the PCW and stopping the circulation of the PCW after pushing the cutter blades against the die 106 while rotating the cutter blades, before the start of the granulation; storing a predetermined amount of PCW in the circulation box 109 by discharging the PCW; and heating the PCW, which is stored in the circulation box 109, up to 69° C. or more.
Abstract: Provided is a laser annealing treatment including a laser light source that outputs pulse laser light, an optical system that shapes the pulse laser light, and leads the shaped pulse laser light to a semiconductor film subject to treatment, and a stage that carries the semiconductor film to be irradiated by the pulse laser light, wherein the pulse laser light irradiating the semiconductor film presents a rising time equal to or less than 35 nanoseconds from 10% of the maximum height to the maximum height in the pulse energy density, and a falling time equal to or more than 80 nanoseconds from the maximum height to 10% of the maximum height, thereby increasing, while an energy density suitable for crystallization and the like is not particularly increased, a margin quantity thereof, and carrying out high quality annealing treatment without decreasing a throughput.
Abstract: The present invention provides a method for manufacturing a fiber-reinforced resin substrate or a resin molded body, the method being capable of effectively performing impregnation of a reinforcing fiber material with a thermoplastic resin and having high productivity and economical efficiency, and an extruder for use in the manufacturing method. The manufacturing method of the invention is a method for manufacturing a fiber-reinforced resin substrate or resin molded body obtained by impregnating a reinforcing fiber material with a thermoplastic resin, including placing the reinforcing fiber material on a molten resin of the thermoplastic resin and pressurizing the same to impregnate the reinforcing fiber material with the molten thermoplastic resin, and subsequently, cooling and solidifying the reinforcing fiber material impregnated with the molten thermoplastic resin.
Abstract: The present invention relates to an Fe—Ni-based alloy having excellent high-temperature characteristics and hydrogen embrittlement resistance, which has a composition containing, in terms of % by mass, C: 0.005% to 0.10%, Si: 0.01% to 0.10%, P: 0.015% or less, S: 0.003% or less, Ni: 23.0% to 27.0%, Cr: 12.0% to 16.0%, Mo: 0.01% or less, Nb: 0.01% or less, W: 2.5% to 6.0%, Al: 1.5% to 2.5%, and Ti: 1.5% to 2.5%, the balance being Fe and other unavoidable impurities.
Abstract: The present invention provides an efficient heat treatment such as activation treatment of impurities on a substrate such as a thick silicon wafer with large heat capacity by laser annealing. Provided is a laser annealing apparatus 1 for heat-treating a surface of a substrate 30 comprising: a pulse oscillation laser source 10 which generates a pulse laser with gentle rise time and long pulse width; a continuous wave laser source 20 which generates a near-infrared laser for assisting annealing; optical systems 12, 22 which shape and guide beams 15, 25 of the two types of lasers respectively so as to irradiate the surface of the substrate 30 therewith; and a moving device 3 which moves the substrate 30 relatively to the laser beams 15, 25 to allow scanning of the combined irradiation of the two types of laser beams.
Abstract: An object of the present invention is to provide a motor rotor support suitable for an axial gap motor and a method for manufacturing the same. The motor rotor support for supporting a magnetic body disposed on a rotor of a motor is configured by a nonmagnetic steel having a relative permeability of less than 1.005 and a 0.2% yield strength at room temperature of 550 MPa or more.
Type:
Application
Filed:
March 27, 2013
Publication date:
November 12, 2015
Applicants:
SANWAKOGYO Ltd., THE JAPAN STEEL WORKS, LTD.
Abstract: The present invention performs, by using a pair of filters, continuous operation of a twin screw extruder even during replacement of a filter. The continuous extrusion device based on a twin screw extruder of the present invention has a pair of filters (6, 6a) provided in a degassing device (5), and a partition valve (24) having a valve (34) for setting the filters (6, 6a) and a screw hole (16) of a cylinder (1) to a communicating or non-communicating state, degassing being performed by using the second filter (6a) during replacement of the first filter (6), and the twin screw extruder being operated continuously even during replacement of the filters (6, 6a).