Sumitomo Heavy Industries

Provided is a method for manufacturing a metal lamination-shaped article in which creep rupture strength satisfies a standard value in Inconel (registered trademark) 718 of a Ni-based alloy. A method for manufacturing a metal lamination-shaped article consisting of a Ni-based alloy includes: a homogenizing treatment step (1) of performing a homogenizing treatment on a metal lamination-shaped article consisting of the Ni-based alloy containing 50% by mass to 55% by mass of Ni, 17% by mass to 21% by mass of Cr, 2.8% by mass to 3.3% by mass of Mo, 4.75% by mass to 5.5% by mass of a total of Nb and Ta, 0.65% by mass to 1.15% by mass of Ti, 0.2% by mass to 0.8% by mass of Al, and the remainder consisting of Fe and inevitable impurities at 1,050°C or higher and 1,250°C or lower; a solutionizing treatment step (2) of performing a solutionizing treatment on the metal lamination-shaped article after the homogenizing treatment step (1); and an aging step (3) of performing an aging treatment at 650°C or higher and 720°C or lower after the solutionizing treatment step (2).

A blow molding mechanism (1) includes an extension rod (16) that is inserted into a bottomed cylindrical intermediate molded product (200) including an opening portion (205) via the opening portion (205) and extends the intermediate molded product (200) when blow molding is performed on the intermediate molded product (200), the extension rod (16) includes a columnar main body (161) that extends inside the intermediate molded product (200) and a tip portion that is formed at a tip portion of the main body (161) and includes a contact portion (162) which is brought into contact with an inner wall (206) of the intermediate molded product (200), and a diameter (b) of the contact portion (162) is larger than a diameter (a) of the main body (161).

A blow molding mechanism (1) includes a second split mold (13) that includes a first region (131) which accommodates at least a part of a portion on an opening portion (205) side from a boundary line (L) between a portion of a bottomed cylindrical intermediate molded product (200) including the opening portion (205), which becomes a neck portion (331) of a final molded product (300), and a portion which becomes the shoulder portion (332), and a second region (132) which accommodates a portion on a side opposite to the opening portion (205) side from the boundary line (L) and an air output portion (11) that outputs air from an output port (112) of a tip portion of a long shaft pipe (111) inserted from the opening portion (205) into the intermediate molded product (200) to expand the intermediate molded product (200), in which the output port (112) is disposed on a first region (131) side of the boundary line (L) between the first region (131) and the second region (132).

A work machine is provided that includes a sensor configured to detect information about stress or load occurring with respect to the work machine; and a controller configured to issue a notice when the stress or load occurring in a predetermined part of the work machine is greater than a predetermined value in magnitude. The stress or load is calculated based on the information obtained from the sensor.

Provided is an actuator (10) that enables identification of the state of rotation of an output shaft (44) and that is advantageous for size reduction of a speed reducer (20) and a motor (18).The actuator (10) includes a motor (18) that includes a motor shaft (16), a speed reducer (20) that is able to output rotation, of which a speed has been reduced to be lower than a speed of rotation of the motor shaft (16), to a driven member (12) via an output shaft (44), a counter-load side rotating body (22) that is disposed on a counter-load side with respect to the motor shaft (16) and that is provided to be relatively rotatable with respect to the motor shaft (16), and a rotation detector (26) for detection of rotation of the counter-load side rotating body (22), in which each of the output shaft (44) and the counter-load side rotating body (22) is couplable to the driven member (12) disposed outside the actuator (10).

Provided is a technique for identifying a lubrication state of a contact unit in an actuator (10) including a motor (14) and a speed reducer. An actuator (10) including a motor (14) and a speed reducer (16), includes: a contact unit (60A to 60F) including a plurality of contact members, in which during an operation of the actuator (10), the contact members adjacent to each other come into contact with each other with relative movement; a plurality of energization members (66A, 66B) provided separately from the contact unit (60A to 60F) and configured to cause an electric current to flow through an energization path (64) configured by a plurality of actuator constituent members via a contact location between the plurality of contact members; and a measurement unit (62) configured to measure a lubrication state between the plurality of contact members in the contact unit (60A to 60F) by causing an electric current to flow through the energization path (64).

An object of the present invention is to provide a motor (100) advantageous for cost reduction while suppressing performance degradation. A motor (100) includes a stator (2) including an iron core (21) having a plurality of teeth (22) and a plurality of slots (24) extending in a radial direction, and a winding wire (25) wound around each of the slots (24), and a rotor (3) including a magnet (32) including magnetic poles (33) facing the plurality of teeth (22) in the radial direction. The iron core (21) is integrally formed in a circumferential direction, and the magnet (32) is formed of a material having a residual magnetic flux density of 1.4 T or more, and an iron core utilization rate of the iron core (21) is less than 60%.

A compressor (12) for a cryocooler (10) includes a compressor casing (24) including an intake port (50) on a surface different from a front surface (24a) of the compressor casing (24) and including an air inlet (52) for the intake port (50) on an edge of the front surface (24a), and an airflow generator (29) disposed inside the compressor casing (24) to generate an airflow into the compressor casing (24) from the air inlet (52) through the intake port (50). The compressor casing (24) may include the intake port (50) on a bottom surface (24d) of the compressor casing (24) facing a compressor installation surface (26), and may include the air inlet (52) between the compressor installation surface (26) and a lower edge of the front surface (24a).

A position of a magnetic pole piece (54a) in an axial direction is easily managed. A magnetic modulator (50) includes the magnetic pole piece (54a), an output shaft portion (51) and a bearing support ring (55) which are disposed in the axial direction of the magnetic pole piece (54a) to rotationally support the magnetic pole piece (54a), and a resin portion (56) that integrates the magnetic pole piece (54a), the output shaft portion (51), and the bearing support ring (55). At least one of both end surfaces (54c) in the axial direction of the magnetic pole piece (54a) is exposed. In this manner, an axial position of an end surface (54c) of the exposed magnetic pole piece (54a) can be directly measured.

A mold device (20) capable of reducing the generation of burrs is provided. A mold device (20) includes a plurality of sets of blow split molds (22) that are disposed side by side in an opening and closing direction, in which one set of blow split mold (22), when closed, forms a blow molding female mold (27) for blow molding, and, when opened, allows a molding product (600) to be removed therefrom; and an interposed member (28) that is interposed between one set of blow split mold (22) of the plurality of sets of blow split molds (22) and the other set of blow split mold (22) of the plurality of sets of blow split molds (22) in a case where the blow split mold (22) is closed.