Abstract: A heating apparatus, a heat treatment apparatus, and a heating method are provided. The heating apparatus includes a workpiece support on which a ring-shaped workpiece is placed, a rotary drive assembly, and a heater configured to heat the workpiece. The workpiece support includes a plurality of rotating rollers arranged in a circumferential direction. The rotary drive assembly is configured to rotate the plurality of rotating rollers to rotate the workpiece placed on the workpiece support along a ring shape of the workpiece. The heater includes a heating coil configured to induction-heat the workpiece on the workpiece support at a heating position, and an actuator configured to move the heating coil at the heating position relative to the workpiece to adjust a distance between the workpiece and the heating coil.

Abstract: Various enhanced features are provided for centrifugal casting apparatuses, rotatable assemblies, and molds for casting products from molten material. These enhanced features include, among others, tapered gate portions positioned adjacent to the cavities of a mold, extended and shared gating systems, and detachable mold structures for modifying the thermodynamic characteristics and behavior of molds during casting operations.

Abstract: An array of valves are arranged in n columns and m lines and which are each designed to control a fluid flow in an associated flow channel in a lab-on-a-chip system. The array includes at least two valves, every column having not more than one valve and every line having from zero to n valves. A device is used for actuating the valves. The valves are pressure-actuated. To produce the device, the flow channels are arranged in accordance with the arrangement of the valves.

Abstract: A bearing arrangement for a centrifugation injection mold, comprising an upper mold portion (10) and a lower mold portion (20), which are respectively and rotatively mounted to an upper bearing (30) and to a lower bearing (40), the latter comprising: a first flat ring (41) affixed to a machine structure (E) and presenting a radial gap that is internal in relation to the lower mold portion (20); an annular cage (42) bearing spheres (44) seated on the first flat ring (41), said annular cage (42) presenting radial gaps that are external and internal in relation to the machine structure (E) and to the lower mold portion (20), respectively; and a second flat ring (45) inferiorly seated on the spheres (44) of the annular cage (42) and maintaining radial gaps that are external and internal in relation to the machine structure (E) and to the lower mold portion (20), respectively, axially bearing the latter.

Abstract: A stabilizing ring assembly for stabilizing a mold in a centrifugal pipe casting machine during operation includes a plurality of ring segments mounted on the mold and cooperating to form an annular ring retained in the mold by a plurality of resilient O-rings positioned in grooves extending around the annular ring with the O-rings fitting within and being compressed radially by the casting machine housing surrounding and rotating with the mold, and water flow passages are formed in the ring segments to permit the flow of cooling water axially of the casting machine between the internal surface of the housing and the external surface of the mold.

Abstract: In inclined type centrifugal casting apparatus for producing cylindrical castings, such as rigid rolls, or hollow cylindrical castings, such as thick sleeves, an axial component of force of a rotating molding box is so great as to require being supported by a tail stock. An inclined type centrifugal casting apparatus according to this invention is arranged such that eccentricity occurring between an axis of rotation of the tail stock and that of the molding box is adjusted for smooth operation by an Oldham's coupling mechanism provided between a tail stock shaft and a rotating plate mounted on an end surface of the rotating molding box, the coupling mechanism including a face plate provided on its opposite surfaces with guide grooves or projecting members extending perpendicularly to each other, the face plate being made of a pressure-resisting and anti-seizing alloy metal and there being further provided with a rotating member.