摘要:
The present invention addresses the problem of providing a powder-filling system capable of filling a container with powder at an approximately uniform filling density. The system has: a hopper 11 having an opening 112 configured to be attached to the container 30 in a removable and hermetically closable fashion so that the hopper 11 communicates with the container 30 at the opening 112 for supplying powder to a container 30; a powder supplier 12 for supplying powder to the hopper 11; a gas supplier 13 for repeatedly supplying compressed gas in a pulsed form to the hopper 11, with the hopper 11 attached to the container 30 in a hermetically closed fashion; and a sieve member 113 provided at the opening 112 and having a smaller openings in a region near a side wall of the hopper 11 than in its central region. The smaller openings in the region near the side wall of the hopper 11 where the powder more easily falls from the hopper 11 into the container 30 impedes the fall of the powder in that region and improves the overall uniformity in the filling density.
摘要:
Provided is a maraging steel excellent in fatigue characteristics, including, in terms of % by mass: C: ≤0.015%, Ni: from 12.0 to 20.0%, Mo: from 3.0 to 6.0%, Co: from 5.0 to 13.0%, Al: from 0.01 to 0.3%, Ti: from 0.2 to 2.0%, O: ≤0.0020%, N: ≤0.0020%, and Zr: from 0.001 to 0.02%, with the balance being Fe and unavoidable impurities.
摘要:
SUBJECT To provide a concentrator solar photovoltaic power generating apparatus with high durability and little deterioration of a transparent resin by light. MEANS FOR SOLUTION In the concentrator solar photovoltaic power generating apparatus 10, since the white resin member (shielding member) 64 to shield the transparent resin member 62 interposed between the bottom end surface of the homogenizer (columnar optical member) 50 and the solar cell 34 is provided, the bonded surface is not damaged due to deterioration of the transparent resin member 62 by light and, consequently, deterioration of the solar cell 34 due to entering moisture is restrained and high durability of the concentrator solar photovoltaic power generating apparatus 10 is achieved. Since the white resin member (shielding member) 64 is non-transparent colored resin member covering the transparent resin member 62, the white resin member 64 prevents deterioration of the transparent resin member 62 by sunlight, for the sunlight is difficult to reach the transparent resin member 62.
摘要:
The present invention relates to a prehardened steel for molds for plastic molding, containing, in terms of % by mass, C: 0.09-0.13%, Si: 0.20-0.40%, Mn: 0.40-0.60%, P: up to 0.100%, Cr: 2.00-3.00%, Cu: 0.60-0.90%, Ni: 2.00-2.45%, Mo: 0.20-0.40%, Mo/Ni: ‰¥0.09, Al: 0.60-0.90%, O: up to 0.0100%, and N: up to 0.0100%, with the remainder being Fe and unavoidable impurities. When the prehardened steel of the present invention is used as a material for molds for plastic molding, molds which have little unevenness in hardness after an aging treatment and which are excellent in terms of mirror surface finishing properties, corrosion resistance, thermal conductivity, and impact resistance can be obtained.
摘要:
A separator material for a fuel cell is provided, in which a uniform first Au-plated layer having a thickness of 0,5-4 nm is formed on one surface of a metal thin plate and a uniform second Au-plated layer having a larger thickness than that of the first Au-plated layer is formed on the other surface of the metal base material, wherein the covering rate of each of the cross-sections of the first Au-plated layer and the second Au-plated layer is 80% or more as observed on a transmission electron microscope. The separator material can have excellent corrosion resistance even when the thicknesses of the Au-plated layers formed on the surface of the base material are small, and can be produced at reduced cost. Further provided are: a separator for a fuel cell and a fuel cell stack, each of which is produced using the separator material.
摘要:
[Problem] When a core is configured by injection-molding a mixture including a soft magnetic powder and a thermoplastic resin and a reactor is manufactured by integrating a coil in a state where the coil is embedded in the inner portion of core, positional misalignment or deformation of coil at the time of molding the core can be effectively prevented, and the core can be favorably molded using an injection molding method. [Solution Means] A reactor 15 is manufactured through a step A or encasing a coil 10 configured by winding a wire in a state where an insulating layer is interposed between the wires with an electrically insulating resin to mold an encased coil body 24, and a step of molding a core 16 by injection-molding a mixture including a soft magnetic powder and a thermoplastic resin in a state where the encased coil body 24 is enclosed. In addition, the injection molding of the core 16 is performed so as to be divided into a step in which a primary molded body 16-1 having a container shape alone is molded and a step in which a secondary molded body 16-2 is molded in a state where the encased coil body 24 is set along with the primary molded body 16-1.
摘要:
The present invention relates to a hollow drilling steel rod including a stem portion and a thread portion positioned at an end portion in an axial direction with respect to the stem portion, the hollow drilling steel rod being constituted of a steel having a specific composition described in the present specification, in which the thread portion includes a thread having been subjected to a high frequency quenching, and the thread portion and the stem portion separate from each other have been joined by a friction welding.
摘要:
The present invention relates to a hollow drilling steel rod including a stem portion and a thread portion positioned at an end portion in an axial direction with respect to the stem portion, the hollow drilling steel rod being constituted of a steel having a specific composition described in the present specification, in which the thread portion includes a thread having been subjected to a high frequency quenching, and the thread portion and the stem portion separate from each other have been joined by a friction welding.
摘要:
SUBJECT To provide a concentrator solar photovoltaic power generating apparatus with high durability and little deterioration of a transparent resin by light. MEANS FOR SOLUTION In the concentrator solar photovoltaic power generating apparatus 10, since the white resin member (shielding member) 64 to shield the transparent resin member 62 interposed between the bottom end surface of the homogenizer (columnar optical member) 50 and the solar cell 34 is provided, the bonded surface is not damaged due to deterioration of the transparent resin member 62 by light and, consequently, deterioration of the solar cell 34 due to entering moisture is restrained and high durability of the concentrator solar photovoltaic power generating apparatus 10 is achieved. Since the white resin member (shielding member) 64 is non-transparent colored resin member covering the transparent resin member 62, the white resin member 64 prevents deterioration of the transparent resin member 62 by sunlight, for the sunlight is difficult to reach the transparent resin member 62.