Abstract: A method for manufacturing a hot-forged member includes heating an unheated material for hot forging in a furnace to a hot forging temperature; bonding a heat-resistant insulation material to at least a part of a surface of a material for forging removed from the furnace to obtain a material to be hot forged; and compressing a part or all of the material to be hot forged into a predetermined shape using any of a die, an anvil, and a tool.

Abstract: The manufacturing method includes: performing testing of samples having the same configuration as the torque measuring device to be manufactured to find a coil balance Cb that is a ratio (R1×R3)/(R2×R4) of a product R1×R3 of resistance values R1 and R3 of one pair of opposite sides of the four sides of a bridge circuit 8, and a product R2×R4 of resistance values R2 and R4 of another pair of opposite sides of the four sides, and a temperature change rate VT of output voltage Vo of a sensor portion 4, and acquiring a relationship X between the coil balance Cb and the temperature change rate VT from the test results; and measuring the resistance values R1, R2, R3, R4 of the four sides to find the coil balance Cb to find the temperature change rate VT from the relationship X for the torque measuring device to be manufactured.

Abstract: An Fe-based amorphous alloy ribbon reduced in iron loss, less deformed, and highly productive in a condition of a magnetic flux density of 1.45 T is provided. One aspect of the present disclosure provides an Fe-based amorphous alloy ribbon having first and second surfaces, and is provided with continuous linear laser irradiation marks on at least the first surface. Each linear laser irradiation mark is formed along a direction orthogonal to a casting direction of the Fe-based amorphous alloy ribbon, and has unevenness on its surface. When the unevenness is evaluated in the casting direction, a height difference HL×width WA calculated from the height difference HL between a highest point and a lowest point in a thickness direction of the Fe-based amorphous alloy ribbon and the width WA which is a length of the linear irradiation mark on the first surface is 6.0 to 180 ?m2.

Abstract: A magnetic core powder including granular powder A of Fe-based, magnetic, crystalline metal material and granular powder B of Fe-based, magnetic, amorphous metal material; the particle size d50A of granular powder A at a cumulative frequency of 50 volume % being 0.5 ?m or more and 7.0 ?m or less, and the particle size d50B of granular powder B at a cumulative frequency of 50 volume % being more than 15.0 ?m, in a cumulative distribution curve showing the relation between particle size and cumulative frequency from the smaller particle size side, determined by a laser diffraction method; the magnetic core powder meeting (d90M?d10M)/d50M of 1.6 or more and 6.0 or less, d10M being a particle size at a cumulative frequency of 10 volume %, d50M being a particle size at a cumulative frequency of 50 volume %, and d90M being a particle size at a cumulative frequency of 90 volume %.

Abstract: Provided is an alloy material that can improve mechanical properties in a high-temperature environment, an alloy product using the alloy material, and a machine device provided with the alloy product. The alloy material is an alloy material containing each of Co, Cr, Fe, and Ni in a range of 5 at % to 40 at %, Mo in a range of more than 0 at % and 8 at % or less, Ti in a range of 1 at % to 10 at %, and B in a range of more than 0 at % and less than 0.15 at % with a remainder consisting of inevitable impurities. This alloy material may contain B in a range of 0.03 at % to 0.12 at % and may contain at least one of Ta and Nb in a range of 4 at % or less. Preferably, the Ti and the at least one of Ta and Nb are contained at a total of 3 at % to 10 at %.

Abstract: A composite cable is provided with a coaxial wire and an insulated wire. The coaxial wire includes a center conductor, a first insulation covering the center conductor, and plural outer conductors arranged on an outer periphery of the first insulation, and a jacket covering the plural outer conductors. The insulated wire includes a stranded conductor including plural strands twisted together, and a second insulation covering the stranded conductor. The center conductor of the coaxial wire is a single wire. A conductor diameter of the center conductor is not more than a wire diameter of each of the plural strands of the insulated wire.

Abstract: A multilayer magnetic sheet includes at least one first layer in which a plurality of magnetic strips are arranged side by side; at least one second layer in which the plurality of magnetic strips are arranged side by side, a direction of the long side of the at least one second layer intersecting that of the at least one first layer; and at least one third layer in which the plurality of magnetic strips are arranged side by side, a direction of the long side of the at least one third layer being the same as that of the at least one first layer. A position of the long side in the at least one first layer and a position of the long side in the at least one third layer are separated from each other by 0.5 mm or more in a direction in which the short side extends.

Abstract: A method for manufacturing a silicon carbide epitaxial substrate which has a first surface which is a (000-1) C-face, a silicon carbide epitaxial layer located on the first surface of the silicon carbide substrate, and a line-shaped surface defect density on a top surface of the silicon carbide epitaxial layer is less than 1.0 cm?2 and a stacking fault density is less than 1.2 cm?2.

Abstract: A cable includes: a cable core including one or more electrical wires; a shield layer made of a metallic wire arranged on a periphery of the cable core; and a sheath arranged on a periphery of the shield layer. The metallic wire is made of a copper alloy wire made of a copper alloy containing indium, a content of which is equal to or more than 0.3 mass % and equal to or less than 0.65 mass %, and the metallic wire has tensile strength that is equal to or higher than 350 MPa and elongation that is equal to or higher than 7%.

Abstract: A silicon carbide ceramic honeycomb structure having large numbers of axially penetrating flow paths partitioned by porous silicon carbide cell walls and being formed by integrally bonding honeycomb segments by binder layers, the cell walls having porosity of 40-50% and a median pore diameter of 8-18 ?m, an average pore width W determined by averaging the lengths (pore widths) of all measured pore portions being 10-25 ?m, the number N of pores per length determined by dividing the total number of the measured pores by the total length of the straight lines used for measurement being 20-40/mm, and the volume of pores having pore diameters of 20 ?m or more being 10-20% of the total pore volume in the cell walls and the volume of pores having pore diameters of 9 ?m or less being 3-25% of the total pore volume in the cell walls, measured by mercury porosimetry.

Abstract: A nonmagnetic insulating metal oxide powder is made to adhere to a surface of a soft magnetic metal ribbon having an amorphous structure; this is wound in annular fashion and made into a wound body at which the metal oxide powder intervenes between ribbon layers; the wound body is made to undergo heat treatment in a nonoxidizing atmosphere; the wound body is thereafter subjected to treatment for formation of an oxide film in an oxidizing atmosphere adjusted to be at a temperature lower than that at the heat treatment to cause oxidation of the surface of the soft magnetic metal ribbon; and spaces between ribbon layers at the wound body are moreover impregnated with resin and curing is carried out to fuse the metal oxide powder thereto.

Abstract: Provided is a ring-rolled member manufacturing method enabling stabilization of the attitude of the ring material without generating a defect and the like in the resulting ring-rolled member even when the main roll of the ring-rolling device is provided with the flange portions positioned on upper and lower sides of the ring material. A ring-rolling device used in the ring-rolled member manufacturing method of the present invention is provided with a main roll 10 and a mandrel roll 20. An outer peripheral face of the main roll includes a recessed portion 12 to accommodate the ring material and an outer peripheral face of the mandrel roll 20, an upper flange portion 11 positioned on an upper side thereof, and a lower flange portion 13 positioned on a lower side thereof.

Abstract: A signal transmission cable includes a conductor, an insulator covering a periphery of the conductor, and a shield layer covering a periphery of the insulator. The shield layer includes a lateral winding shield portion composed of a plurality of metal wires being helically wrapped around the periphery of the insulator to cover the periphery of the insulator, and a batch plating portion composed of a hot dip plating, which is covering a periphery of the lateral winding shield portion. Where a diameter of the metal wire is d and a thickness of the batch plating portion from an outer surface of the metal wire is t, a formula t<0.5d is met over an entire cable circumference. When the signal transmission cable is bent in a U-shape within a range of a bending strain of 35% or less, no cracks occur in the batch plating portion.

Abstract: This invention provides a composite material that is durable in a hot environment and easily produced. The composite material according to the invention has an overlaid part comprising high-melting-point metal in at least a part on the surface of a low-melting-point alloy member having a melting point of 1600° C. or lower. The overlaid part comprising high-melting-point metal comprises high-melting-point metal particles comprising high-melting-point metal elements having a melting point of 2400° C. or higher scattered therein and comprises the high-melting-point metal elements that account for 50% by mass to 95% by mass thereof.

Abstract: This invention provides a composite material that is durable in a hot environment and easily produced. The composite material according to the invention has an overlaid part comprising high-melting-point metal in at least a part on the surface of a low-melting-point alloy member having a melting point of 1600° C. or lower. The overlaid part comprising high-melting-point metal comprises high-melting-point metal particles comprising high-melting-point metal elements having a melting point of 2400° C. or higher scattered therein, and 40% or more of the high-melting-point metal particles has a roundness of 0.7 or higher. The low-melting-point alloy member comprises one type of a low-melting-point alloy selected from among a Fe-based alloy, a Ni-based alloy, a Co-based alloy, a Ti-based alloy, a Cr-based alloy, and a high-entropy alloy and the high-melting-point metal particles comprise at least one type of high-melting-point metal element selected from among W, Ta, Mo, and Nb.

Abstract: The invention provides a cermet composite material that can improve a bond strength between a cermet part and a non-cermet part without heat treatment at high temperature. The cermet composite material according to the invention comprises a cermet part including hard carbides dispersed in a metallic phase and a non-cermet part consisting of a Ni-based alloy including 50% by mass or more of Ni with the cermet part being formed on the non-cermet part by additive manufacturing, wherein the cermet composite material comprises an intermediate layer including both components of the cermet part and components of the non-cermet part between the cermet part and the non-cermet part, and the non-cermet part consists of the Ni-based alloy including 3.0% by mass to 15.0% by mass of Ti or the Ni-based alloy including 0.5% by mass to less than 3.0% by mass of Ti and 4% by mass to 15% by mass of Nb and Ta in total.

Abstract: A ceramic honeycomb structure comprising pluralities of honeycomb segments each having pluralities of longitudinally penetrating flow paths partitioned by porous cell walls and plugs formed in the end portions of the flow paths, and a bonding material layer boding the peripheral walls of the honeycomb segments, the bonding material layer comprising silicon carbide particles as aggregate and a bonding phase bonding the silicon carbide particles, the bonding phase comprising at least a cordierite phase and a spinel phase, the molar ratio M1 of the cordierite phase [=cordierite phase/(cordierite phase+spinel phase)] being 0.50 or more and less than 1.0, and the content of (cordierite phase+spinel phase) in the bonding phase being 50% or more by mass.

Abstract: A cable status management system for managing a wire-break progress of a cable used in a managed device is provided with a cable status management device having a cable status storage unit that stores a wire-break progress data indicating the wire-break progress in the cable, a device user-side data management device that belongs to a device user that uses the managed device, a device manufacturer terminal that belongs to a device manufacturer that manufactures the managed device, and a cable manufacturer terminal that belongs to a cable manufacturer that manufactures the cable. At least the device manufacturer terminal and the cable manufacturer terminal are configured to be accessible with the wire-break progress data stored in the cable status storage unit via a network.

Abstract: A method that includes performing additive manufacturing using metal powder under a predetermined condition to manufacture an additively manufactured test object including a reference part, a deformation part and a coupling part integrating the reference part and the deformation part arranged in a surface direction of an upper surface of a baseplate on the upper surface of the baseplate such that the reference part, the deformation part, and the coupling part are joined to the upper surface of the baseplate; a separation step of separating the additively manufactured test object from the upper surface of the baseplate; and measuring the deformation amount of the deformation part based on the reference part of the additively manufactured test object separated from the upper surface of the baseplate.

Abstract: A complex harness for vehicle, including power wires for an electric brake or an electric parking brake, each of the power wires comprising a first center conductor and a first insulation that covers the first center conductor, an ABS (Anti-lock Brake System) sensor cable comprising signal wires contacting each other and an inner sheath comprising a thermoplastic resin and covering the signal wires, each of the signal wires comprising a second center conductor and a second insulation that covers the second center conductor and having a cross section smaller than a cross section of each of the power wires, a separator collectively covering the power wires and the ABS sensor cable and comprising a paper, a non-woven fabric, or a resin tape, and an outer sheath covering the separator.