摘要:
A ring molded article manufacturing method capable of reliably and efficiently producing a ring molded article in which dead metal regions are reduced, and a ring material used for producing the ring molded article, are provided. The present invention relates to the method for manufacturing a ring molded article having two convex portions which respectively protrude on both sides of the ring molded article in a direction of a center axis thereof and extend in a direction of a circumeference of the ring molded article. In the manufacturing method, the ring material is placed inside two molds on which concave portions respectively corresponding to the convex portions are formed, in a condition in which the ring material is supported by a region on an outer peripheral side from an outer peripheral side corner in the concave portion of one of the two molds and a region on an inner peripheral side from an inner peripheral side corner in the concave portion of another of the two molds, the ring material is then forged so as to be pressed by the two molds in a direction of a center axis of the ring material, and the ring molded article is thus produced. In addition, the present invention relates to the ring material used for producing the ring molded article.
摘要:
A device for rolling a self-contained endless band (10) for a metal push belt, which is provided with a first and a second rotatable bearing roller (6, 7) around which the band (10) is intended to be placed and held in an elongated form, the second bearing roller (6) being accommodated in a movable manner in the device, with a rolling roller (11) that is in contact with the band (10) and with a central roller (7) that is in contact with the band (10) opposite to the rolling roller (11), in which device a pushing force (Fu) can be generated between the rolling roller (11) and the central roller (7), to which pushing force the band (10) is subjected, wherein one or both of the rolling roller (11) and the central roller (7) is provided with a concave, hourglass-like shape such that the respective roller (7; 11).
摘要:
A rolling device capable of rolling a metal ring to a ring with an accurate peripheral length and preventing the metal ring from dropping, comprising a metal ring supporting means having tension rollers (2a, 2b) having the metal ring (W) applied thereto, a rolling means having a rolling roller (5) for rolling the metal ring (W) and a rolling cylinder (14) for pressing the rolling roller (5) against the metal ring (W), a tensioning means having a tension cylinder (23) engaged with tension roller supporting members (8, 10, 25) for pivotally supporting one tension roller (2b) and displacing the tension roller (2b) to provide a tension to the metal ring (W) and providing a tension to the metal ring (W), and a rolling completion means (27) for detecting the completion of the rolling to stop the rolling means and the tension providing means, the rolling means further comprising a first elastic member (18) installed between the rolling cylinder (5) and the cylinder rod (15), and the tension providing means further comprising a second elastic member (28) installed between the cylinder rod (24) of the tension cylinder (23) and the tension roller supporting member (25).
摘要:
A process for rolling a self-contained endless band (10) for a metal push belt, in which in a first process step the band (10) is placed in unrolled form over at least two rotatable bearing rollers (6, 7) which are movable relative to each other, in a second step at the position of the first bearing roller (7) said band is brought into contact with a rolling roller (11), and in a third process step during a rotating movement driven by at least one of the rollers (6, 7, 11), with the exertion locally of a pushing force (Fu), said band is introduced between the first bearing roller (7) and the rolling roller (11), the band (10) by way of movement of a second (6) of the bearing rollers (6, 7) being subjected to a pulling force (Fl), characterized in that the rolling process is controlled depending upon a specific or given measurement for the material volume of the band (10), on the basis of which a specific rolling process setting is determined.
摘要:
A rolling device for rolling a self-contained endless band (10) for a metal push belt, which is provided with a first and a second rotatable supporting rollers (6, 7) around which the band (10) is intended to be placed and held in an elongated form, the second bearing roller (6) being accommodated in a movable manner in the device during the rolling of a band (10), with a rolling roller (11) that is contact with the band (10) and with a pressure roller (13) that by way of a support roller (12) is in contact with the first bearing roller (7), which opposite the rolling roller (11) is in contact with the band (10) and in which device a pushing force (Fu) can be generated between the rolling roller (11) and the first bearing roller (7), to which pushing force the band (10) is subjected.
摘要:
A laminated ring 6 is manufactured by severing a cylindrical drum 2, which comprises a sheet 1 of maraging steel with welded opposite ends, into a plurality of rings 4 of predetermined width, rolling the rings 4 to a predetermined target circumferential length, correcting circumferential lengths of the rings 4 aging and nitriding the rings 4, and laminating the rings 4 into a laminated ring 6 for transmitting power in a continuously variable transmission. A load applied to a circumferential edge of each of the rolled rings 4 and a load applied to another circumferential edge thereof are measured while supporting an inner circumferential surface of the ring 4 and applying a tensile load in a direction to expand the ring 4. The difference between circumferential lengths of the circumferential edges of the ring 4 is detected based on the difference between the loads applied to the circumferential edges when the difference between the loads is maximum.
摘要:
A ring molded article manufacturing method capable of reliably and efficiently producing a ring molded article in which dead metal regions are reduced, is provided. In the present invention, a material is processed by first forging so as to be shaped in a shape including a bottom which is formed in a substantially disk shape, and a peripheral wall which is inclined to a direction from a center of the bottom toward an outer periphery thereof, in a direction from the outer periphery of the bottom toward one side in a direction of a center axis of the bottom, the bottom of a first forged article obtained by the first forging is drilled, a drilled article obtained by the drilling is ring-rolled, a ring material obtained by the ring rolling is placed inside two molds, the ring material is then processed by second forging so as to be pressed by the two molds in a direction of a center axis of the ring material, and the ring molded article is thus produced.
摘要:
Reflectors for solar concentration and methods for formation thereof. A reflective assembly (1340) may include a plurality of elongate panels (370) forming a continuous trough (1330), and a frame (1230) configured to support the panels, with the frame with attached panels defining a parabolic contour on the top side of the trough.