Abstract: Provided is a steel H-shape for low temperature service including a predetermined chemical composition. A CEV obtained by CEV=C+Mn/6+(Cr+Mo+V)/5+(Ni+Cu)/15 is 0.40 or less. A sum of an area ratio of one or both of ferrite and bainite at a 1/4 position from an outer side across a thickness of a flange and a 1/6 position from an outer side across a flange width is 90% or more, and an area ratio of a hard phase is 10% or less. An effective grain size is 20.0 ?m or less, and a grain size of the hard phase is 10.0 ?m or less. 30 pieces/mm2 or more Ti oxides having an equivalent circle diameter ranging from 0.01 to 3.0 ?m are included. The thickness of the flange ranges from 12 to 50 mm.

Abstract: A rotary head, on which are arranged in a circumferential direction multiple nozzle holders each holding a suction nozzle, is provided with, separately to first negative pressure supply unit that supplies negative pressure to the suction openings of all the suction nozzles, second negative pressure supply unit that supplies negative pressure to the suction nozzle held by the nozzle holder that is lowerable when that nozzle holder is lowered. Accordingly, when performing pickup operation and mounting operation using the suction nozzle, the state of the suction nozzle is not affected by the state of the other suction nozzles.

Abstract: A board work device provided with mounting head that performs work with respect to a circuit board, slider on which the mounting head is mounted, moving device that moves the slider to any position, and support pin gripping device for gripping support pins which is provided on the slider on the opposite side to the side on which the mounting head is mounted.

Abstract: In a steel sheet pile according to the present invention, a carbon equivalent CEN is 0.260 to 0.500, a structure includes a ferrite, a pearlite, a Widmanstätten ferrite, and a precipitate, the precipitate is one or both of Nb carbonitride and V carbonitride, a total number density of the precipitate is 0.10 to 0.30 pieces/?m2, a total area ratio of the ferrite and the pearlite is 70% or more, an area ratio of the Widmanstätten ferrite is 1% or more, an average grain size of the ferrite and the pearlite is 10 to 80 ?m, and a yield strength is 460 MPa or more.

Abstract: A component mounting positional deviation amount measurement unit is set in a feeder setting section of a component mounting machine so as to be exchangeable with a cassette-type feeder, and includes measurement nozzle placement sections in which measurement nozzles exchangeably held in a mounting head of the component mounting machine are placed; measurement component placement sections in which measurement components are placed; and a measurement mounting table on which a measurement fiducial mark is provided.

Abstract: In a rotary head type component mounter, among a specified quantity of suction nozzles held by a rotary head, multiple suction nozzles are lowered simultaneously. When the rotary head is moved by a head moving mechanism to a nozzle exchange area and exchange of suction nozzles is performed, two station reference marks of the nozzle station are imaged by a mark imaging camera, image recognition is performed of the positions of the two station reference marks, and the position and angle of the nozzle station is calculated. Then, the position and angle of the rotary head is corrected to be aligned with the position and angle of the nozzle station, multiple of the suction nozzles held on the rotary head are lowered simultaneously by Z-axis driving mechanisms and simultaneously exchanged with multiple of the suction nozzles in the nozzle station.

Abstract: A nozzle section is held by a nozzle holder to be vertically movable, and the nozzle section is biased downwards by springs. A height position reference section for which image recognition is possible is provided on an outer circumferential section of the nozzle section. Both a component held on the lower end of the nozzle section and the height position reference section are in the field of view of a camera that captures a side view image of an area around the lower end of the nozzle section. The side view image is processed, the height position reference section and a height position of the lower end of the component are recognized, a height difference from the height position reference section to the lower end of the component is measured, and it is determined whether the pickup orientation of the component is acceptable based on the height difference.

Abstract: A revolving nozzle station and a revolving drive device that revolves the revolving nozzle station are housed inside a cassette case of a cassette-type nozzle exchanging unit. In an outer circumferential portion of the revolving nozzle station, multiple nozzles for exchange with a nozzle of component mounter are arranged radially along a revolution path, and the nozzles are held in a detachable manner. A nozzle exchange port is formed in a top end surface of cassette case, and nozzle exchange is performed between the revolving nozzle station and a mounting head of the component mounter through the nozzle exchange port. A shutter mechanism which opens and closes the nozzle exchange port is provided in the cassette case.

Abstract: In rotary head type component mounter, provided at two locations around rotary head are Z1-axis drive mechanism and Z2-axis drive mechanism that lower suction nozzles, and in a case in which the interval between two suction nozzles is a multiple two times or greater than the arrangement pitch of components in tray, component mounter performs consecutive simultaneous pickup operation repeatedly for a quantity corresponding to the quantity of component arrangement pitches between the two suction nozzles, the consecutive simultaneous pickup operation being that of lowering the two suction nozzles simultaneously such that two of the components on tray are picked up simultaneously, then rotating rotary head by one nozzle pitch, moving rotary head in the arrangement direction of the components on tray by one component arrangement pitch, and then lowering the next two suction nozzles simultaneously such that another two of the components on tray are picked up simultaneously.

Abstract: An automatic feeder exchanging system that automatically exchanges a feeder for which exchange is necessary from multiple feeders set in a feeder setting area of a component mounter.

Abstract: In a rotary head type component mounter, before using two suction nozzles of rotary head to pick up the leading components in component supply tape set in two tape feeders, rotary head is moved in the XY directions by head moving mechanism and rotated by head rotating mechanism such that the pickup points of the two suction nozzles are positioned on two straight lines and extending in the tape feeding direction of each tape feeder passing through the ideal pickup points of the leading components of the two tape feeders, and the leading components are fed to component pickup positions and that are the pickup points of the suction nozzles on the two straight lines. Then, the two suction nozzles of rotary head are lowered simultaneously to pick up the two component simultaneously using the two suction nozzles.

Abstract: A component mounting system comprising a feeder stocking area in which feeders to be exchanged with feeders for which exchanging is necessary from among multiple feeders which are set in the feeder setting area of each of the component mounting machines are caused to wait; and an exchanging robot which removes the feeders for which exchanging is necessary from the feeder setting area of each of the component mounting machines, removes the feeders to be exchanged with the feeders for which exchanging is necessary from among the multiple feeders which wait in the feeder stocking area, and sets the feeders in the feeder setting area of the component mounting machine.

Abstract: A work head unit that detects the rotational position of suction nozzle with first Q-axis encoder positioned facing component holding section that holds a component. With the work head unit, it is desirable to detect the orientation of component holding section at two locations: suction nozzle and syringe member.

Abstract: An automatic feeder exchanging system that automatically exchanges a feeder for which exchange is necessary from multiple feeders set in a feeder setting area of a component mounter.

Abstract: A component mounting machine moves a mounting head from a supply position P1 to each of mounting positions P3 and P4 of a circuit board CB via an imaging position P2. Further, the component mounting machine performs control such that the mounting head moves in a direction of movement at the time of imaging that is either of an X-axis direction or a Y-axis direction when passing through the imaging position P2. The component mounting machine determines the direction of movement at the time of imaging, according to a first X-axis distance Lx and a first Y-axis distance Ly from the imaging position P2 to each of the mounting positions P3 and P4.

Abstract: Provided are a first component holding tool operating device which operates one component holding tool which is positioned at a first position set on one circumference among the plurality of component holding tools for holding and disengaging a component, and a second holding tool operating device which operates one component holding tool which is positioned at a second position set on the circumference among the plurality of component holding tools for holding and disengaging the component. The first position and the second position are set so that the second position is positioned in the middle of two adjacent component holding tools among the plurality of component holding tools when one of the plurality of component holding tools is positioned at the first position.

Abstract: A board work device provided with mounting head that performs work with respect to a circuit board, slider on which the mounting head is mounted, moving device that moves the slider to any position, and support pin gripping device for gripping support pins which is provided on the slider on the opposite side to the side on which the mounting head is mounted.

Abstract: A revolving nozzle station and a revolving drive device that revolves the revolving nozzle station are housed inside a cassette case of a cassette-type nozzle exchanging unit. In an outer circumferential portion of the revolving nozzle station, multiple nozzles for exchange with a nozzle of component mounter are arranged radially along a revolution path, and the nozzles are held in a detachable manner. A nozzle exchange port is formed in a top end surface of cassette case, and nozzle exchange is performed between the revolving nozzle station and a mounting head of the component mounter through the nozzle exchange port. A shutter mechanism which opens and closes the nozzle exchange port is provided in the cassette case.

Abstract: A secondary battery includes: a cathode; an anode; and an electrolytic solution. The anode includes a lithium composite oxide represented by following Formula (1), LiwZnxSnyMzO4??(1) where M is one or more of Co, Mg, Ni, Ca, Al, Ti, V, Cr, Mn, Fe, Cu, and Ag; and w to z satisfy 0.3?w?1, 0.3?x?1, 0.8?y?1.2, and (w+x+y+z)=3.

Abstract: An H-section steel has a predetermined chemical composition, an Nb content and a B content satisfy Nb+125×B?0.075%, a thickness of a flange is 12 mm to 40 mm, and in a thickness center portion and ¼ flange width portion of the flange, a metallographic structure of a cross-section perpendicular to a rolling direction contains pearlite having a distribution density of 3.2×10?3 units/?m2 or lower and the remainder is formed of ferrite and bainite.