Abstract: A shape sensor is provided for acquiring a shape profile along an extension direction of an existing weld bead, and a control unit includes a welding information acquisition unit for acquiring welding information during formation of an adjacent weld bead when forming the adjacent weld bead at a position adjacent to the existing weld bead, and a defect candidate extraction unit for determining an angle characteristic portion having a base angle equal to or greater than a threshold in the existing weld bead based on the shape profile, determining a welding characteristic portion of the welding information based on the welding information, and extracting the welding characteristic portion corresponding to the angle characteristic portion as a defect candidate by associating the welding characteristic portion with the angle characteristic portion.

Abstract: A defect occurrence prediction method uses a mathematical model to associate input information, which includes various items, namely the material of a built object, welding conditions for welding beads, and a welding track; and output information, which includes defect information regarding the built object where additive manufacturing has been performed under the conditions in the input information. This mathematical model is used to create a database, and the defect information regarding the built object is found by searching the database, and the defect information is then presented. Each item of the input information includes a plurality of input subitems that are mutually different. The output information includes a plurality of individual defect information items which correspond respectively to the input subitems. When the mathematical model is generated, the respective input subitems of the input information are associated with the individual defect information items via the mathematical model.

Abstract: A building plan assistance method by which a mathematical model is used to associate input information, including the respective items of the material of a build object, a weld condition of weld beads, and a weld track, with output information including a characteristic value of the build object when additively manufactured under the condition of the input information, and a database is created using the mathematical model. The database is searched for a build object material, a weld condition, and a weld track corresponding to a target characteristic value of the build object to be manufactured, and the obtained build object material, weld condition, and weld track are presented. In the creating of the database, each of input sub-items of the input information items is associated with an individual characteristic value of the output information by means of the mathematical model.

Abstract: To provide a printing device that can carry out a temperature adjustment of air in a simple manner and also provide superior energy efficiency, the present invention relates to a printing device 100 that is constituted by a printing part 5, a first air heater part 6a and a second air heater part 6b, as well as a control part 4, and each of the first air heater part 6a and the second air heater part 6b is constituted by at least one or more air heaters 6, and the control part 4 carries out a first control in which the first air heater part 6a is turned ON, while the second air heater part 6b is simultaneously turned OFF and a second control in which the first air heater part 6a is turned OFF, while the second air heater part 6b is simultaneously turned ON, with the first control and the second control being alternately switched in each fixed period.

Abstract: [Problem] To provide a printing device that can carry out a temperature adjustment of air in a simple manner and also provide superior energy efficiency. [Solving Means] The present invention relates to a printing device 100 that is constituted by a printing part 5, a first air heater part 6a and a second air heater part 6b, as well as a control part 4, and each of the first air heater part 6a and the second air heater part 6b is constituted by at least one or more air heaters 6, and the control part 4 carries out a first control in which the first air heater part 6a is turned ON, while the second air heater part 6b is simultaneously turned OFF and a second control in which the first air heater part 6a is turned OFF, while the second air heater part 6b is simultaneously turned ON, with the first control and the second control being alternately switched in each fixed period.

Abstract: An inkjet printer capable of suppressing temperature unevenness of a drying drum itself as much as possible having a printing part for applying ink to a medium before printing, a drying drum for heating and drying a medium after printing having the ink applied in contact with an outer circumferential face thereof, and a controller capable of individually controlling heating of a plurality of sections obtained by dividing the drying drum along a plane perpendicular to a shaft direction thereof. Each of the respective sections is mounted with a heater part capable of heating the corresponding section, and heating of the heater parts of all of the sections is continuously controlled individually by the controller.

Abstract: An inkjet printer capable of suppressing temperature unevenness of a drying drum itself as much as possible having a printing part for applying ink to a medium before printing, a drying drum for heating and drying a medium after printing having the ink applied in contact with an outer circumferential face thereof, and a controller capable of individually controlling heating of a plurality of sections obtained by dividing the drying drum along a plane perpendicular to a shaft direction thereof. Each of the respective sections is mounted with a heater part capable of heating the corresponding section, and heating of the heater parts of all of the sections is continuously controlled individually by the controller.

Abstract: A seamless steel pipe for a hollow spring includes C: 0.2 to 0.7 mass %, Si: 0.5 to 3 mass %, Mn: 0.1 to 2 mass %, Cr: 3 mass % or less (excluding 0 mass %), Al: 0.1 mass % or less (excluding 0 mass %), P: 0.02 mass % or less (excluding 0 mass %), S: 0.02 mass % or less (excluding 0 mass %) and N: 0.02 mass % or less (excluding 0 mass %). A residual austenite content in an inner surface layer part of the steel pipe is 5 vol. % or less. An average grain size of a ferrite-pearlite structure in the inner surface layer part of the steel pipe is 18 ?m or less. A number density of a carbide having a circle equivalent diameter of 500 nm or more and being present in the inner surface layer part of the steel pipe is 1.8×10?2 particles/?m2 or less.

Abstract: A hollow seamless pipe for a high-strength spring in the present invention includes a steel material in which chemical component compositions are properly adjusted, wherein a depth of a whole decarburized layer in an inner surface layer part is 100 ?m or less, a depth of a flaw which is present in an inner surface is 40 ?m or less, a width of the flaw is 60 ?m or less, and a number density of a carbide which has a circle equivalent diameter of 500 nm or more and is present in the inner surface layer part is 1.8×10?2 particles/?m2 or less.

Abstract: A hollow seamless pipe for a high-strength spring in the present invention includes a steel material in which chemical component compositions are properly adjusted, wherein a depth of a whole decarburized layer in an inner surface layer part is 100 ?m or less, a depth of a flaw which is present in an inner surface is 40 ?m or less, a width of the flaw is 60 ?m or less, and a number density of a carbide which has a circle equivalent diameter of 500 nm or more and is present in the inner surface layer part is 1.8×10?2 particles/?m2 or less.

Abstract: Disclosed is a high-strength steel plate having a predetermined chemical composition, in which a microstructure of the steel plate at a depth of one-fourth to one half the thickness from a surface has an area fraction of bainite of 90% or more, an average lath width of bainite of 3.5 ?m or less, and a maximum equivalent circle diameter of martensite-austenite constituents in bainite of 3.0 ?m or less. The steel plate exhibits high strengths and good drop weight properties and is useful as structural materials for offshore structure, ships, and bridges, as well as materials for pressure vessels in nuclear power plants.

Abstract: A seamless steel pipe for a hollow spring includes C: 0.2 to 0.7 mass %, Si: 0.5 to 3 mass %, Mn: 0.1 to 2 mass %, Cr: 3 mass % or less (excluding 0 mass %), Al: 0.1 mass % or less (excluding 0 mass %), P: 0.02 mass % or less (excluding 0 mass %), S: 0.02 mass % or less (excluding 0 mass %) and N: 0.02 mass % or less (excluding 0 mass %). A residual austenite content in an inner surface layer part of the steel pipe is 5 vol. % or less. An average grain size of a ferrite-pearlite structure in the inner surface layer part of the steel pipe is 18 ?m or less. A number density of a carbide having a circle equivalent diameter of 500 nm or more and being present in the inner surface layer part of the steel pipe is 1.8×10?2 particles/?m2 or less.

Abstract: Disclosed is a high-strength steel plate having a predetermined chemical composition, in which a microstructure of the steel plate at a depth of one-fourth to one half the thickness from a surface has an area fraction of bainite of 90% or more, an average lath width of bainite of 3.5 ?m or less, and a maximum equivalent circle diameter of martensite-austenite constituents in bainite of 3.0 ?m or less. The steel plate exhibits high strengths and good drop weight properties and is useful as structural materials for offshore structure, ships, and bridges, as well as materials for pressure vessels in nuclear power plants.

Abstract: Provided is a multi-layered sheet which has undergone heating corresponding to brazing, such as an aluminum-alloy radiator tube, or a multi-layered sheet such as an aluminum-alloy brazing sheet. The multi-layered sheet can have a reduced thickness and has excellent fatigue properties. The multi-layered sheet of aluminum alloys comprises a core layer (2) which has been clad at least with a sacrificial layer (3). This multi-layered sheet is a multi-layered sheet to be subjected to brazing or welding to produce a heat exchanger or is a multi-layered sheet which has undergone heating corresponding to brazing. The core layer (2) comprises a specific 3000-series composition. In this core layer (2), the average density in number of dispersed particles having a specific size has been regulated. As a result, fatigue properties, which govern cracking, can be highly improved.

Abstract: Disclosed herein is an aluminum alloy clad sheet for a heat exchanger including a core layer, a sacrificial layer formed on one surface of the core layer, and a filler layer including an Al—Si based alloy formed on the other surface of the core layer. The core layer includes a predetermined amount of Si, Cu, Mn, Ti, and Mg, the remainder including Al and inevitable impurities, and the sacrificial layer includes a predetermined amount of Si, Mn, and Zn, the remainder including Al and inevitable impurities. The core layer has a crystal grain size after the brazing heat treatment at 595° C. for 3 minutes of at least 50 ?m and less than 300 ?m. The filler layer and the sacrificial layer are defined for their thickness, and the number of intermetallic compounds in the core layer is also defined to a predetermined range. By such constitution, the aluminum alloy clad sheet has improved fatigue life and post-braze strength, high corrosion resistance, and excellent erosion resistance and brazeability.

Abstract: Provided is a multi-layered sheet which has undergone heating corresponding to brazing, such as an aluminum-alloy radiator tube, or a multi-layered sheet such as an aluminum-alloy brazing sheet. The multi-layered sheet can have a reduced thickness and has excellent fatigue properties. The multi-layered sheet of aluminum alloys comprises a core layer (2) which has been clad at least with a sacrificial layer (3). This multi-layered sheet is a multi-layered sheet to be subjected to brazing or welding to produce a heat exchanger or is a multi-layered sheet which has undergone heating corresponding to brazing. The core layer (2) comprises a specific 3000-series composition. In this core layer (2), the average density in number of dispersed particles having a specific size has been regulated. As a result, fatigue properties, which govern cracking, can be highly improved.

Abstract: An electronic keyboard instrument which is capable of easily carrying out an arpeggio performance rich in variety by a simple operation on a touch strip. The electronic keyboard instrument has a belt-like touch strip on which a player slides his finger while touching it to carry out an arpeggio performance. A CPU causes musical tones of respective pitch names included in respective designated component pitch names to be sounded, in a predetermined arpeggio pattern having a predetermined sounding order, according to detected touch positions on the touch strip, for the arpeggio performance. A musical tone generating circuit for generating musical tones for the arpeggio performance is switched between first and second tone generator circuits for generating musical tones based on key-on information detected on swingable keys and a third tone generator circuit dedicated to generation of musical tones for the arpeggio performance.

Abstract: Disclosed herein is an aluminum alloy clad sheet for a heat exchanger including a core layer, a sacrificial layer formed on one surface of the core layer, and a filler layer including an Al—Si based alloy formed on the other surface of the core layer. The core layer includes a predetermined amount of Si, Cu, Mn, Ti, and Mg, the remainder including Al and inevitable impurities, and the sacrificial layer includes a predetermined amount of Si, Mn, and Zn, the remainder including Al and inevitable impurities. The core layer has a crystal grain size after the brazing heat treatment at 595° C. for 3 minutes of at least 50 ?m and less than 300 ?m. The filler layer and the sacrificial layer are defined for their thickness, and the number of intermetallic compounds in the core layer is also defined to a predetermined range. By such constitution, the aluminum alloy clad sheet has improved fatigue life and post-braze strength, high corrosion resistance, and excellent erosion resistance and brazeability.

Abstract: An electronic keyboard instrument which is capable of easily carrying out an arpeggio performance rich in variety by a simple operation on a touch strip. The electronic keyboard instrument has a belt-like touch strip on which a player slides his finger while touching it to carry out an arpeggio performance. A CPU causes musical tones of respective pitch names included in respective designated component pitch names to be sounded, in a predetermined arpeggio pattern having a predetermined sounding order, according to detected touch positions on the touch strip, for the arpeggio performance. A musical tone generating circuit for generating musical tones for the arpeggio performance is switched between first and second tone generator circuits for generating musical tones based on key-on information detected on swingable keys and a third tone generator circuit dedicated to generation of musical tones for the arpeggio performance.

Abstract: Some of the repetitively generated impulse response signals are inverted for their polarities, and particular harmonics only are erased/attenuated. The rate of generating the impulse response signals remains constant or changes relative to the pitch, and the tones of the fixed formant type or the tones of the moving formant type are selected. Both ends of the impulse response signals are cut off, whereby the impulse response signals are superposed one upon the other in a decreased amount, and the amount of operation decreases. A plurality of impulse response signals are synthesized to generate impulse response signals different from the impulse response signals of before being synthesized. The rate of generating the impulse response signals changes not in proportion to the pitch, and tones of the moving formant type or generated changing more mildly than a change in the pitch.