Abstract: The invention relates to a maraging steel containing C: 0.02% (mass %, hereinafter the same) or less, Si: 0.3% or less, Mn: 0.3% or less, Ni: 7.0 to 15.0%, Cr: 5.0% or less, Co: 8.0 to 12.0%, Mo: 0.1 to 2.0%, Ti: 1.0 to 3.0%, and Sol.Al: 0.01 to 0.2%, where the balance includes Fe and unavoidable impurities of P: 0.01% or less, S: 0.01% or less, N: 0.01% or less, and O: 0.01% or less. The parent phase of the maraging steel includes a martensitic phase. The parent phase contains a martensitic phase obtained by reverse transformation from a martensitic phase to an austenitic phase and then transformation from the austenitic phase, in an area fraction of 25% to 75%.

Abstract: Provided is a covered electrode for high-Cr ferritic heat-resistant steels with which it is possible to obtain weld metal that has the toughness required for weld parts and has excellent high temperature strength. The covered electrode for high-Cr ferritic heat-resistant steels includes a steel core and a coating agent that coats the core. The covered electrode comprises C, Si, Mn, Ni, Cr, Mo, V, Co, B, Nb, W, N, and Fe each in a predetermined range in the total mass of the covered electrode, contains a slag forming agent, and has a total of the W content and the Co content of 2.8 mass % or more.

Abstract: A welding material may be suitable for high-Cr ferritic heat-resistant steels, and may suppress ?-ferrite occurrence, i.e., a soft structure, thereby improving the toughness, and enabling the achievement of a welded metal that has good cracking resistance and strength at high temperatures. Such welding materials for high-Cr ferritic heat-resistant steels may contain C, Si, Mn, S, Co, V, Nb, W, N, and O, respectively within specific ranges and limits Ni and P respectively to specific ranges, while containing from 8.0% by mass to 9.5% by mass (inclusive) of Cr and from 0.02% by mass to 0.20% by mass (inclusive) of Mo and additionally limiting Cu to less than 0.05% by mass, with the balance being made up of Fe and unavoidable impurities.

Abstract: Aspects of the invention can include a teleconferencing system having a system housing, a speaker enclosure configured within the system housing, a speaker mounted to the speaker enclosure, and one or more damping cushions coupling the speaker enclosure to the system housing. The one or more damping cushions can suspend the speaker enclosure within the system housing such that the speaker enclosure is separated and mechanically isolated from the system housing by at least a minimum distance (e.g., 2 mm). In some cases, the one or more damping cushions provide the only structural coupling between the speaker enclosure and the system housing. The one or more damping cushions can be configured to dampen mechanical energy generated by the speaker thereby preventing at least a portion of the mechanical energy form coupling to the system housing via the one or more damping cushions.

Abstract: The present invention relates to a maraging steel containing C: 0.02% (means mass %, hereinafter the same) or less, Si: 0.3% or less, Mn: 0.3% or less, Ni: 7.0 to 15.0%, Cr: 5.0% or less, Co: 8.0 to 12.0%, Mo: 0.1 to 2.0%, Ti: 1.0 to 3.0%, and Sol.Al: 0.01 to 0.2%, where the balance includes Fe and unavoidable impurities of P: 0.01% or less, S: 0.01% or less, N: 0.01% or less, and O: 0.01% or less. The parent phase of the maraging steel includes a martensitic phase. The parent phase contains a martensitic phase obtained by reverse transformation from a martensitic phase to an austenitic phase and then transformation from the austenitic phase, in an area fraction of 25% to 75%.

Abstract: Aspects of the invention can include a teleconferencing system having a system housing, a speaker enclosure configured within the system housing, a speaker mounted to the speaker enclosure, and one or more damping cushions coupling the speaker enclosure to the system housing. The one or more damping cushions can suspend the speaker enclosure within the system housing such that the speaker enclosure is separated and mechanically isolated from the system housing by at least a minimum distance (e.g., 2 mm). In some cases, the one or more damping cushions provide the only structural coupling between the speaker enclosure and the system housing. The one or more damping cushions can be configured to dampen mechanical energy generated by the speaker thereby preventing at least a portion of the mechanical energy form coupling to the system housing via the one or more damping cushions.

Abstract: Disclosed is a mar aging steel containing, in combination in mass percent, C in a content from greater than 0% to 0.02%, Mn in a content from greater than 0% to 0.3%, Si in a content from greater than 0% to 0.3%, Ni in a content of 10% to 13%, Mo in a content of 0.5% to 3.5%, Co in a content of 9% to 12%, Cr in a content of 1.5% to 4.5%, Ti in a content of 1.5% to 4.5%, and Al in a content of 0.01% to 0.2%, where the total content of Mo and Ti is 5.0 mass percent or less, and the ratio ([Mo]/[Ti]) of the Mo content [Mo] to the Ti content [Ti] is 1.0 or less, with the remainder consisting of iron and inevitable impurities.

Abstract: Provided is soft magnetic powder used to manufacture a dust core having good mechanical strength and superior formability while iron loss is reduced. The soft magnetic powder for dust cores according to the invention is soft magnetic mixed powder that includes pure iron powder and soft magnetic iron-base alloy powder, wherein the proportion of the soft magnetic iron-base alloy powder in the mixture is 5 to 60 mass %, the ratio of the modes of the particle size distributions of the soft magnetic iron-base alloy powder and the pure iron powder ((the mode of the particle size distribution of the soft magnetic iron-base alloy powder)/(the mode of the particle size distribution of the pure iron powder)) is 0.9 or more and less than 5, and the ratio Rover/Runder is 1.

Abstract: This heat-resistant austenitic stainless steel has a specific composition containing Ce and Zr and has an Hv1/Hv0 ratio of 1.20 or higher, where Hv1 is the average hardness of the area ranging from the surface to a thickness-direction depth of 50 ?m and Hv0 is the average hardness of the thickness-direction central part.

Abstract: An austenitic heat-resistant steel containing, by mass, 0.05-0.16% of C, 0.1-1% of Si, 0.1-2.5% of Mn, 0.01-0.05% of P, less than 0.005% of S, 7-12% of Ni, 16-20% of Cr, 2-4% of Cu, 0.1-0.8% of Mo, 0.1-0.6% of Nb, 0.1-0.6% of Ti, 0.0005-0.005% of B, 0.001-0.15% of N, and 0.005% or less of Mg and/or 0.005% or less of Ca, the amounts of Nb and Ti being 0.3% or above in total, with the remainder being made up by Fe and unavoidable impurities. The cumulative number density of a precipitate has a particle diameter of over 0 nm to 100 urn being 0.1-2.0/?m2, the precipitate particle diameter corresponding to half of the cumulative number density in the distribution of the cumulative number density and the precipitate particle diameter is 70 nm or less, the average hardness is 160 Hv or less, and the grain size number is 7.5 or above.

Abstract: Disclosed is an iron-based soft magnetic powder obtained by preparing an iron-oxide-based soft magnetic powder through water atomization, and thermally reducing the iron-oxide-based soft magnetic powder. The iron-based soft magnetic powder has an average particle size of 100 ?m or more and has an interface density of more than 0 ?m?1 and less than or equal to 2.6×10?2 ?m?1, where the interface density is determined from a cross-sectional area (?m2) and a cross-sectional circumference (?m) of the iron-based soft magnetic powder. The iron-based soft magnetic powder obtained by preparing an iron-oxide-based soft magnetic powder through water atomization and thermally reducing the iron-oxide-based soft magnetic powder, when used for the production of a dust core, can give a dust core having a low coercive force. Also disclosed is a duct core having a low coercive force and exhibiting superior magnetic properties.

Abstract: A powder magnetic core which exhibits a high compact density and a reduced iron loss can be obtained by compacting a soft magnetic powder in which the mass ratio of soft magnetic powder particles that pass through a filter having an opening of 75 ?m is 95 mass % or higher relative to the whole amount of the soft magnetic powder and which has a mean strain of less than 0.100%.

Abstract: Provided is soft magnetic powder used to manufacture a dust core having good mechanical strength and superior formability while iron loss is reduced. The soft magnetic powder for dust cores according to the invention is soft magnetic mixed powder that includes pure iron powder and soft magnetic iron-base alloy powder, wherein the proportion of the soft magnetic iron-base alloy powder in the mixture is 5 to 60 mass %, the ratio of the modes of the particle size distributions of the soft magnetic iron-base alloy powder and the pure iron powder ((the mode of the particle size distribution of the soft magnetic iron-base alloy powder)/(the mode of the particle size distribution of the pure iron powder)) is 0.9 or more and less than 5, and the ratio Rover/Runder is 1.

Abstract: A powder magnetic core which exhibits a high compact density and a reduced iron loss can be obtained by compacting a soft magnetic powder in which the mass ratio of soft magnetic powder particles that pass through a filter having an opening of 75 ?m is 95 mass % or higher relative to the whole amount of the soft magnetic powder and which has a mean strain of less than 0.100%.

Abstract: This heat-resistant austenitic stainless steel has a specific composition containing Ce and Zr and has an Hv1/Hv0 ratio of 1.20 or higher, where Hv1 is the average hardness of the area ranging from the surface to a thickness-direction depth of 50 ?m and Hv0 is the average hardness of the thickness-direction central part.

Abstract: A heat-resistant austenitic stainless steel comprising C: 0.05 to 0.2%, Si: 0.1 to 1%, Mn: 0.1 to 2.5%, Cu: 1 to 4%, Ni: 7 to 12%, Cr: 16 to 20%, Nb: 0.1 to 0.6%, Zr: 0.05 to 0.4%, Ce: 0.005 to 0.1%, Ti: 0.1 to 0.6%, B: 0.0005 to 0.005%, N: 0.001 to 0.15%, S: 0.005% or less (not including 0%), and P: 0.05% or less (not including 0%), with the balance of iron and unavoidable impurities.

Abstract: This brushless DC motor (1) is provided with a stator (3) having a main body (312, 322) disposed on both ends thereof in the rotational axis direction with a single exciting coil (2) disposed between the main bodies (312, 322), and with a rotor (4) disposed in the interior of the stator (3), wherein main body (312) is formed with a first magnetic core (31) and main body (322) is formed with a second magnetic core (32), the magnetic cores (31, 32) functioning as a magnetic pole and having protrusions (311, 321), the quantity of which being different for each magnetic core (31, 32). The brushless DC motor (1) uses, as the driving force, the variation in the magnetic resistance between the stator (3) and the rotor (4) in relation to the flow of the magnetic flux generated in the periphery of the exciting coil (2).