Abstract: After molten metal has been poured from a ladle 6 into a converter, metal 6b adhering to the ladle 6 is dropped into the ladle 6 on-line, and molten metal is poured from an electric furnace into the ladle 6 into which the metal 6b has been dropped. As a result, the metal 6b is melted and is recovered as a material.

Abstract: The device and method handles increases in power consumed by an inkjet head. When greater-than-specified electric power is being input from both the first input section and the second input section, the control section controls the state of connection so as to prioritize connection of the second power source to the inkjet head driving system over the first power source.

Abstract: The device and method handles increases in power consumed by an inkjet head. When greater-than-specified electric power is being input from both the first input section and the second input section, the control section controls the state of connection so as to prioritize connection of the second power source to the inkjet head driving system over the first power source.

Abstract: A pneumatic tire includes a tread that has: land portions formed and segmented by a plurality of circumferential grooves extending in a tire circumferential direction and by a plurality of widthwise grooves extending in a tire width direction; and sipes formed in contact patches of the land portions. The pneumatic tire includes: recessed sections (groove-bottom recessed sections) that are formed in tire-width-direction lateral surfaces of the land portions provided in tire-width-direction outermost parts, so as to connect to the widthwise grooves; and indents/lugs that are formed in bottom surfaces of the recessed sections such that indents/lugs thereof are arranged alternately and continuously in a linear manner.

Abstract: After molten metal has been poured from a ladle 6 into a converter, metal 6b adhering to the ladle 6 is dropped into the ladle 6 on-line, and molten metal is poured from an electric furnace into the ladle 6 into which the metal 6b has been dropped. As a result, the metal 6b is melted and is recovered as a material.

Abstract: There is provided an actuator in which an worm is rotationally driven by an electric motor, and in which an angular velocity of the electric motor is repeatedly fluctuated so that the rotation of the worm is carried out as if the worm is oscillated in the rotational direction thereof, to thereby decrease contact friction of the worm against a worm wheel, resulting in an improvement of an efficiency of force transmission of the worm gear mechanism.

Abstract: In an actuator, an electric power supply to a position-detecting detector for an object to be driven can be carried out in a timely manner during a power failure to thereby suppress an electric power consumption in the position-detecting detector, whereby duration time of a power-failure compensation battery can be prolonged, and a variety of detectors can be selected and utilized without limitation in accordance with a use environment and usefulness. During the power failure, a switching means 40 establishes a linking state in which an input shaft 11 of a reduction mechanism 10 and a manual inputting means 30 are linked to each other. When the linking state is detected by a detecting means, an electric power is fed from a battery 80 to a rotation detector by a control section 70, so that the control section 70 can obtain a displacement of the object to be driven, based on a signal output from the rotation detector.

Abstract: Chrome-containing molten iron and slag are to be obtained in an electric furnace operation using CaF2-free slag. In order to reduce and collect chrome from the slag while simultaneously promoting desulfurization of molten iron, a chrome-containing molten iron produced in an electric furnace and having a Cr content of from 8.0 to 35.0% by mass, and a CaF2-free electric furnace slag formed during the molten iron production, including Cr2O3, SiO2 and CaO as the constituent components and having a basicity CaO/SiO2 of from 0.7 to 1.7, are mechanically stirred with an impeller in a refining vessel. A metal Al-containing substance and CaO are put into the vessel before the end of stirring to thereby control the basicity of the slag after the end of stirring to at least 1.

Abstract: A method for stirring chrome-containing molten iron comprises mechanically stirring chrome-containing molten iron contained in a refining vessel by the use of an impeller having a rotation axis in the vertical direction where the refining vessel is such that the horizontal cross section of the inner wall thereof is circular around the central axis of the vessel in the vertical direction and the impeller, as integrated with the axial rod covered with a refractory, rotates around the central axis of the axial rod, as the rotation axis thereof. The stirring mode is regularly or irregularly switched between a concentric stirring of the molten iron in a state where the rotation axis of the impeller is centered in the central axis of the vessel and an eccentric stirring of the molten iron in a state where the rotation axis of the impeller is decentered from the central axis of the vessel.

Abstract: A pneumatic tire provided with run-flat reinforcing layers 10 in left and right sidewall portions 2 that enable run-flat traveling. A tread reinforcing layer 12 formed from a thermoplastic resin or a thermoplastic elastomer composition including a blend of a thermoplastic resin component and an elastomer component is provided on an inner side of a tread portion 1.

Abstract: Chrome-containing molten iron and slag are to be obtained in an electric furnace operation using CaF2-free slag. In order to reduce and collect chrome from the slag while simultaneously promoting desulfurization of molten iron, a chrome-containing molten iron produced in an electric furnace and having a Cr content of from 8.0 to 35.0% by mass, and a CaF2-free electric furnace slag formed during the molten iron production, including Cr2O3, SiO2 and CaO as the constituent components and having a basicity CaO/SiO2 of from 0.7 to 1.7, are mechanically stirred with an impeller in a refining vessel. A metal Al-containing substance and CaO are put into the vessel before the end of stirring to thereby control the basicity of the slag after the end of stirring to at least 1.

Abstract: A method for stirring chrome-containing molten iron comprises mechanically stirring chrome-containing molten iron contained in a refining vessel by the use of an impeller having a rotation axis in the vertical direction where the refining vessel is such that the horizontal cross section of the inner wall thereof is circular around the central axis of the vessel in the vertical direction and the impeller, as integrated with the axial rod covered with a refractory, rotates around the central axis of the axial rod, as the rotation axis thereof. The stirring mode is regularly or irregularly switched between a concentric stirring of the molten iron in a state where the rotation axis of the impeller is centered in the central axis of the vessel and an eccentric stirring of the molten iron in a state where the rotation axis of the impeller is decentered from the central axis of the vessel.

Abstract: There is provided an actuator in which an worm is rotationally driven by an electric motor, and in which an angular velocity of the electric motor is repeatedly fluctuated so that the rotation of the worm is carried out as if the worm is oscillated in the rotational direction thereof, to thereby decrease contact friction of the worm against a worm wheel, resulting in an improvement of an efficiency of force transmission of the worm gear mechanism.