Abstract: An electric heating support includes a honeycomb structure having an outer peripheral wall and interior porous partition walls defining a plurality of cells forming a flow path. A pair of electrode layers are disposed on a surface of the outer peripheral wall so as to face each other across a central axis of the honeycomb structure. Protective layers cover the electrode layers, respectively, such that at least a part of each electrode layer is exposed. A pair of metal terminals are provided on the electrode layers. Each electrode layer is composed of a metal-ceramic mixed member. A portion of each electrode layer that is exposed from the protective layer is electrically connected to each of the pair of metal terminals.

Abstract: An electric heating support includes a honeycomb structure having an outer peripheral wall and interior porous partition walls defining a plurality of cells forming a flow path. A pair of electrode layers are disposed on a surface of the outer peripheral wall so as to face each other across a central axis of the honeycomb structure. Protective layers cover the electrode layers, respectively, such that at least a part of each electrode layer is exposed. A pair of metal terminals are provided on the electrode layers. Each electrode layer is composed of a metal-ceramic mixed member. A portion of each electrode layer that is exposed from the protective layer is electrically connected to each of the pair of metal terminals.

Abstract: In a power converter for a railroad vehicle, adjacent ones of a plurality of fins are spaced apart from each other from a base connected to a base portion to a distal end, and the plurality of fins further spread to both one side and the other side in an alignment direction from the base toward the distal end.

Abstract: A power converter for a railroad vehicle includes a first fin and a second fin having outer shapes different from each other as viewed in an alignment direction. On both ends of the first fin and the second fin in a running direction, non-overlapping regions in which the first fin and the second fin do not face each other in the alignment direction are located so as to sandwich an overlapping region, in which the first fin and the second fin face each other in the alignment direction, therebetween.

Abstract: This power conversion device for a railway vehicle includes a first radiation fin radiating heat from a semiconductor device and a second radiation fin arranged at a prescribed interval from the first radiation fin in a traveling direction for radiating heat from the semiconductor device. At least either one of the first and second radiation fins includes an air duct formed by partially not providing a plurality of fin portions.

Abstract: A power converter for a railway vehicle includes a power converter body configured to be installed on the railway vehicle; a first radiating fin unit arranged on a front side on the power converter body for dissipating heat from the power converter body; a second radiating fin unit arranged on the power converter body on a rear side for dissipating heat from the power converter body; and an air duct that takes in air from a region other than regions in which the first and second radiating fin units are disposed while the railway vehicle is moving, the air duct extending into a fin separation space that is defined as a space between the first radiating fin unit and the second radiating fin unit so as to guide air that is taken in into the fin separation space.

Abstract: In a power converter for a railroad vehicle, adjacent ones of a plurality of fins are spaced apart from each other from a base connected to a base portion to a distal end, and the plurality of fins further spread to both one side and the other side in an alignment direction from the base toward the distal end.

Abstract: A power converter for a railroad vehicle includes a first fin and a second fin having outer shapes different from each other as viewed in an alignment direction. On both ends of the first fin and the second fin in a running direction, non-overlapping regions in which the first fin and the second fin do not face each other in the alignment direction are located so as to sandwich an overlapping region, in which the first fin and the second fin face each other in the alignment direction, therebetween.

Abstract: A power converter, including a heat generating element, and a cooler that includes a heat receiving plate, a plurality of cooling fins and a baffle plate. The heat generating element and the plurality of cooling fins are respectively mounted on two different surfaces of the heat receiving plate. Each cooling fin is a plate of a rectangular shape, and the plurality of cooling fins are arranged in parallel to one another, surfaces of any adjacent two of the cooling fins defining a course for cooling air to flow therethrough. The baffle plate is provided across the plurality of cooling fins, and has a substantially rectangular surface in a direction perpendicular to a direction of the courses.

Abstract: A power converter for a railway vehicle includes a power converter body configured to be installed on the railway vehicle; a first radiating fin unit arranged on a front side on the power converter body for dissipating heat from the power converter body; a second radiating fin unit arranged on the power converter body on a rear side for dissipating heat from the power converter body; and an air duct that takes in air from a region other than regions in which the first and second radiating fin units are disposed while the railway vehicle is moving, the air duct extending into a fin separation space that is defined as a space between the first radiating fin unit and the second radiating fin unit so as to guide air that is taken in into the fin separation space.

Abstract: This power conversion device for a railway vehicle includes a first radiation fin radiating heat from a semiconductor device and a second radiation fin arranged at a prescribed interval from the first radiation fin in a traveling direction for radiating heat from the semiconductor device. At least either one of the first and second radiation fins includes an air duct formed by partially not providing a plurality of fin portions.

Abstract: A power converter, including a heat generating element, and a cooler that includes a heat receiving plate, a plurality of cooling fins and a baffle plate. The heat generating element and the plurality of cooling fins are respectively mounted on two different surfaces of the heat receiving plate. Each cooling fin is a plate of a rectangular shape, and the plurality of cooling fins are arranged in parallel to one another, surfaces of any adjacent two of the cooling fins defining a course for cooling air to flow therethrough. The baffle plate is provided across the plurality of cooling fins, and has a substantially rectangular surface in a direction perpendicular to a direction of the courses.

Abstract: A second mold is placed on a planar surface of a first mold to form a first mold cavity, which is filled with a first material slurry containing a first material powder and the molded slurry is caused to set, thereby forming a first molded part on the planar surface of the first mold. A third mold is placed on the planar surface of the first mold from which the second mold is removed and on which the first molded part is formed, thereby forming a second mold cavity. The second mold cavity is filled with a second material slurry which contains a second material powder different from the first material powder so as to mold the slurry in contact with the first molded part. The molded slurry is caused to set, thereby forming a second molded part on the planar surface of the first mold.

Abstract: A second mold is placed on a planar surface of a first mold to form a first mold cavity, which is filled with a first material slurry containing a first material powder and the molded slurry is caused to set, thereby forming a first molded part on the planar surface of the first mold. A third mold is placed on the planar surface of the first mold from which the second mold is removed and on which the first molded part is formed, thereby forming a second mold cavity. The second mold cavity is filled with a second material slurry which contains a second material powder different from the first material powder so as to mold the slurry in contact with the first molded part. The molded slurry is caused to set, thereby forming a second molded part on the planar surface of the first mold.

Abstract: A second mold is placed on a planar surface of a first mold to form a first mold cavity, which is filled with a first material slurry containing a first material powder and the molded slurry is caused to set, thereby forming a first molded part on the planar surface of the first mold. A third mold is placed on the planar surface of the first mold from which the second mold is removed and on which the first molded part is formed, thereby forming a second mold cavity. The second mold cavity is filled with a second material slurry which contains a second material powder different from the first material powder so as to mold the slurry in contact with the first molded part. The molded slurry is caused to set, thereby forming a second molded part on the planar surface of the first mold.

Abstract: The frequency and power of ultrasonic waves is adjusted to materialize the relation 0.04f?20.0?P?0.09f?7.5, wherein f (kHz) is the frequency of the ultrasonic waves and P (W/L) is the power per unit fluid volume obtained by dividing the power (W) of the ultrasonic waves by the volume (L) of a cleaning fluid. The discharge condition of the cleaning fluid by a pump is adjusted such that the proportion (C5) of the brightness of the fluid when 5 seconds has passed since the state wherein both an ultrasonic wave irradiation means and a bubble supply means are concurrently operating to the brightness of the fluid when no bubbles exist in the fluid is 0.75 or less. The coalition and crush of bubbles due to the irradiation of ultrasonic waves are suppressed, and the both actions can be utilized for a long period.

Abstract: A forming mold having a base member 10, and a resin layer 20 formed on the base member 10. The base member 10 has a rigidity higher than that of the resin layer 20. On the surface of the base member 10, the resin layer 20 having a thickness (Tb) of 1 mm or more is formed through lining or a similar technique. Then, the surface of the portion of the resin layer 20, the portion to be serve as a forming surface, is machined (e.g., end-milled) for finishing so that the thickness of the portion is reduced from Tb to Ta, whereby a forming surface P1 is completed. The forming surface P1 has a form accuracy as high as that attained by a forming surface of a forming mold produced through machining without employing a resin layer.

Abstract: A forming mold having a base member, a resin layer bonded to the base member and serving as a forming surface, and a bonding layer between the base member and the resin layer, which bonds the base member to the resin layer. The base member has a rigidity higher than that of the resin layer. The forming mold is produced through bonding the resin layer to the base member by use of an adhesive, and the surface of the bonded resin layer is worked, to form the “forming surface” of the resin layer. Alternatively, the forming mold is produced through forming the resin layer having a “forming surface” and bonding the formed resin layer to the base member by use of an adhesive. The present invention enables provision of a forming mold having enhanced dimensional precision of the resin layer actually serving as a forming surface.

Abstract: A second mold is placed on a planar surface of a first mold to form a first mold cavity, which is filled with a first material slurry containing a first material powder and the molded slurry is caused to set, thereby forming a first molded part on the planar surface of the first mold. A third mold is placed on the planar surface of the first mold from which the second mold is removed and on which the first molded part is formed, thereby forming a second mold cavity. The second mold cavity is filled with a second material slurry which contains a second material powder different from the first material powder so as to mold the slurry in contact with the first molded part. The molded slurry is caused to set, thereby forming a second molded part on the planar surface of the first mold.

Abstract: The frequency and power of ultrasonic waves is adjusted to materialize the relation 0.04f?20.0?P?0.09f?7.5, wherein f (kHz) is the frequency of the ultrasonic waves and P (W/L) is the power per unit fluid volume obtained by dividing the power (W) of the ultrasonic waves by the volume (L) of a cleaning fluid. The discharge condition of the cleaning fluid by a pump is adjusted such that the proportion (C5) of the brightness of the fluid when 5 seconds has passed since the state wherein both an ultrasonic wave irradiation means and a bubble supply means are concurrently operating to the brightness of the fluid when no bubbles exist in the fluid is 0.75 or less. The coalition and crush of bubbles due to the irradiation of ultrasonic waves are suppressed, and the both actions can be utilized for a long period.