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.

Abstract: A harness with sensor includes a sensor including a plurality of detection units to detect a physical quantity, a cable including a plurality of electric wires connected to the plurality of sensor units and a sheath collectively covering the plurality of electric wires, and a connector provided at an end portion of the cable opposite to the sensor. The connector includes a plurality of connector-connecting portions to respectively output detection signals of the plurality of sensor units.

Abstract: A new method for evaluating embrittlement of an amorphous alloy ribbon is provided. The method includes: pressing a pressurization member from one side to a plurality of positions of an amorphous alloy ribbon; scattering, in the amorphous alloy ribbon, pressurization portions where the pressurization member is pressed to form indentation; and evaluating embrittlement by the number or distribution of pressurization portions where cracks have occurred.

Abstract: A copper-ceramic joint body having high joint strength is provided. The copper-ceramic joint body includes: a copper member made of Cu or Cu alloy; a ceramic member joined to the copper member and made of nitride of Si or Al; and a joint layer formed on joint surfaces of the copper member and the ceramic member, and containing Cu and Mg and further containing at least one type of active metal elements selected from a group of Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, Ca, Y, Ce, La, Sm, Yb, Nd, Gd and Er, and shear strength of the joint layer is equal to or higher than 10 MPa.

Abstract: A cable with sensor, including a cable including a plurality of electric wires and a sheath collectively covering the plurality of electric wires, and a sensor section provided at an end of the cable. The sensor section includes a plurality of magnetic sensors each including a detection section that includes a magnetism detection element and a cover covering the magnetism detection element, and a housing portion coating the plurality of magnetic sensors, the plurality of electric wires, and the sheath. The cable is extending out of the housing portion. The respective detection sections are arranged to be aligned with each other in a same direction as an extending direction of the cable from the housing portion of the cable.

Abstract: A method for producing an Fe-based nanocrystalline alloy ribbon, the method including a step of supplying a molten Fe-based alloy onto a rotating chill roll, and rapidly solidifying the molten Fe-based alloy that has been supplied onto the chill roll, thereby obtaining an Fe-based amorphous alloy ribbon having a free solidified surface and a roll contact surface, and a step of heat-treating the Fe-based amorphous alloy ribbon, thereby obtaining an Fe-based nanocrystalline alloy ribbon; wherein an outer peripheral part of the chill roll is composed of a Cu alloy, and a thermal conductivity of the outer peripheral part is from 70 W/(m·K) to 225 W/(m·K).

Abstract: A quality control method for a diisononyl phthalate includes a measuring step of irradiating the diisononyl phthalate with a laser to measure a Raman spectrum; and an acceptance or rejection decision step of determining an acceptance or a rejection of a quality of the diisononyl phthalate on the basis of a high and low intensity relationship between an intensity of a first spectral peak, which is ascribed to a vibration of molecular chains in a straight chain hydrocarbon, and an intensity of a second spectral peak, which is ascribed to a vibration of isopropyl groups, in the measured Raman spectrum.

Abstract: A physical quantity sensor-fixing structure includes a holder holding a physical quantity sensor including a detection unit to detect a physical quantity and a plurality of lead wires connected to the detection unit. The holder fixes the physical quantity sensor to a plurality of conductive support members to be respectively connected to the plurality of lead wires. The holder includes a main body member including a housing portion to house at least a portion of the physical quantity sensor, and a lid member covering at least a portion of the housing portion.

Abstract: A silicon carbide ceramic honeycomb structure having large numbers of axially penetrating flow paths partitioned by porous silicon carbide cell walls, the cell walls having porosity of 35-50% and a median pore diameter of 8-18 ?m, when a straight line C is drawn in parallel with the cell wall surface such that it passes a center in the direction of the thickness T of the cell wall, and straight lines are drawn in parallel with the straight line C such that they are separate from the straight line C by ±T/5 and ±2T/5 in the thickness direction of the cell wall, to measure the lengths (pore widths) of pore portions crossing each straight line, and the number of pores crossing each straight line, in a cell wall cross section perpendicular to the axial direction, an average pore width W determined by averaging the lengths (pore widths) of all measured pore portions being 10-25 ?m, and the number N of pores per length determined by dividing the total number of the measured pores by the total length of the straight

Abstract: A ceramic honeycomb filter has (a) cross section areas of intake flow paths being larger than those of discharge flow paths; (b) the intake and discharge flow paths having octagonal cross section shapes with four-fold rotation symmetry each obtained by cutting off four corners from a square; (c) the intake and discharge flow paths being alternately arranged in a first direction and a second direction perpendicular to the first direction, such that their opposing sides are parallel; (d) the opening ratio of the intake flow paths being 45-60%; (e) the number of the flow paths per cm2 being 30-60; (f) the thickness t1 of a cell wall between an intake flow path and a discharge flow path adjacent to that intake flow path being 0.150-0.260 mm; and (g) the thickness t2 of a cell wall between adjacent intake flow paths meeting 1.175<t2/t1<1.6.

Abstract: A first synthesized characteristic value calculated based on a first blending ratio of constituent materials contained in a first composite material and on a first characteristic value corresponding to the constituent materials contained in the first composite material, as well as first blending information of the constituent materials contained in the first composite material are used as input parameters (explanatory variables) for an approximate function to estimate a value of physical quantity (objective variable) for the first composite material.

Abstract: A disconnection detecting system for detecting disconnection of any of a plurality of wires included in a cable is provided. The disconnection detecting system includes: a bending mechanism configured to periodically apply force to the cable so as to cause the cable to reciprocate between a first bending state to be bent in one direction of clockwise and counterclockwise directions and a second bending state to be bent in the other direction; and a measuring apparatus configured to measure a resistance value of the cable, which varies on a time series basis in accordance with the reciprocation of the bending mechanism, and extract a component of a bending frequency for reciprocating between the first and second bending states once from frequency components included in time-series variation in the resistance value of the cable. The disconnection is detected on a basis of amplitude of the component of the bending frequency.