Abstract: The invention relates to a chamber for the crystallization of solid catalyst carrier. The chamber is provided with an acoustic generator (9) for loosening the carrier from the walls of the chamber.

Abstract: A method of producing a high quality bulk single crystal of silicon carbide in a seeded growth system is disclosed. The method includes positioning the seed crystal in a crucible while exerting minimal torsional forces on the seed crystal to thereby prevent torsional forces from warping or bowing the seed crystal in a manner that that would otherwise encourage sublimation from the rear of the seed crystal or undesired thermal differences across the seed crystal.

Abstract: A crystallization apparatus of the present invention irradiates a non-single-crystal semiconductor film with a luminous flux having a predetermined light intensity distribution to crystallize the film, and comprises a phase modulation device comprising a plurality of unit areas which are arranged in a certain period and which mutually have substantially the same pattern, and an optical image forming system disposed between the phase modulation device and the non-single-crystal semiconductor film. The unit area of the phase modulation device has a reference face having a certain phase, a first area disposed in the vicinity of a center of each unit area and having a first phase difference with respect to the reference face, and a second area disposed in the vicinity of the first area and having substantially the same phase difference as that of the first phase difference with respect to the reference face.

Abstract: An apparatus for injection molding comprises an injection unit comprising a plunger, the plunger being translated with accumulation of plasticized material in preparation for injection and being advanced to inject the accumulated plasticized material into mold cavities. At least one electric motor is engaged with the plunger to resist translation as melt is accumulated and to inject plasticized material into the mold cavities. At least one hydraulic actuator selectably operates the plunger during a pack and hold interval to supply supplemental force when force supplied by the electric motors is limited to maintain the operation of the motors within the applicable continuous duty rating thereof. The electric motors are advantageously selectably operatively engaged with the plunger to inject plasticized material into the mold cavities and the hydraulic actuators are operated to inject plasticized material into the mold cavities when the motors are not engaged therefore.

Abstract: An apparatus and a method for producing woodfuel briquettes, pellets, compounds, composites, agglomerates, or granulates as source material for subsequent processing in injection molding or extrusion processes, includes a pressing screw with screw spirals, which rotate around a longitudinal axis and which are arranged inside a screw shell. The feed material is conveyed to the pressing screw via a feed chute located at an input side. At the end of the pressing screw, processing tools are arranged, to which the feed material is conveyed by the rotating screw spirals. In the area of the processing tools, the residual moisture in the feed material evaporates due to the heat generated during the processing procedure, and is vented as a steam flow from the apparatus through the screw shell.

Abstract: It is an object of the present invention to provide a pulling-down apparatus that can breed a crystal having good characteristics of scintillation. The apparatus retains in a container that can control an atmosphere a melting pot having a narrow hole at the bottom side thereof, an induction heating device, and a seed-holding device that holds a seed and is pulled down so that a crystal formed successively to the seed is pulled down. Concurrently, imaging devices are arranged that can pick up images of a solid-liquid interface between the crystal and a melt material, from different directions, and the seed-holding device can be travel along directions perpendicular to respective image pickup directions in a horizontal plane.

Abstract: A method for preparing film oxides deposited on a substrate with a resulting grain boundary junction that is atomistically straight. A bicrystal substrate having a straight grain boundary is prepared as a template. The Miller indices h1, k1, h2, k2 of the two grains of the substrate are chosen such that the misorientation angle of the film is equal to arctan k1/h1+arctan k2/h2. The film is grown on the substrate using a layer-by-layer growth mode.

Abstract: Device for the hot granulation of thermoplastic polymers, optionally expandable, which comprises: a) a die (1) containing a series of small plates (6), equipped with a series of extrusion holes, and a plurality of feeding ducts (3) situated inside the die body (2) in correspondence with the perforated small plates (6), lined with a material having a high thermal conductivity (4); b) a cutting chamber comprising a set of spraying nozzles (17) which create a jet of drops of a thermostat-regulating liquid for cooling the cut granules; c) a cutting system comprising a cutting plate (13) supporting a set of knives (15) arranged so that the cutting profile of the knife is radial with respect to the die.

Abstract: A cutter hub and blade assembly for an underwater pelletizer in which molten polymer is extruded as strands through orifices in a die plate. The cutter hub is rotatably driven and includes cutter blades mounted at a steep angle on the cutter hub and move along the face of the die plate to cut the extruded strands into pellets. The cutter blade support angle on the cutter arms is 60°-79°, preferably about 72° to about 76° and most preferably about 75°. The blade cutting edge is beveled or angled at about 40° to about 50° and preferably about 45° to the opposed planar surfaces of the blade. The included angle between the blade cutting edge and the die face is at least about 20°. The inclination of the cutter blade support angle in combination with the blade cutting edge angle in accordance with the invention provides a clean cut of the pellets and enables faster blade grinding when seating new blades to the die face.

Abstract: A manually operable device for making dough pockets can have a respective frame formed in shells hinged together so that the faces of the frame members can bond dough pockets together around their peripheries and cut off excess dough from the dough pockets. Ribs can be provided to subdivide the frames and the surfaces of the ribs and frames can be toothed where the frames squeeze the dough layers together.

Abstract: A process for manufacturing a quartz crystal element consists of the steps of producing plural quartz layers on a surface of a crystalline substrate having a lattice constant differing from that of quartz crystal, in which each of the quartz layers consists of a crystalline phase and an amorphous phase, and percentage of the crystalline phase in the quartz layer farther from the substrate is larger than percentage of the crystalline phase in the quartz layer adjacent to the substrate; and producing an epitaxially grown quartz crystal film on the surface of the quartz layer farther from the substrate by a reaction between silicon alkoxide and oxygen.

Abstract: In a die plate having a hardened surface for sliding a knife, a plurality of WC alloy plates 1b are diffusion-bonded to a base metal 2b, whereby the hardened surface h is formed. A plurality of nozzle holes 4a, 4a . . . are formed on each of the WC alloy plates 1b. Each of the WC alloy plates 1b is formed into a shape having a thickness of 2.5 mm or more and two adjacent edges 20 mm or more in length, wherein each edge is 200 mm or less in length. The die plate has high freedom in an arrangement of nozzle holes to enable a close arrangement of a number of nozzle holes, has an extended life with hardly causing dropping-off of a member constituting a hardened surface, and can be produced with a minimized number of processes.

Abstract: A cooling system for cooling sleeves (2) fixed to a carrier plate (1), by means of a fluid which is passed from a fluid inlet (15) to a fluid outlet (22) by way of fluid conduits (7, 14, 10, 11, 21) supported by means of the carrier plate (1). The fluid conduits (7, 14, 10, 11, 21) include main supply conduits (7) and supply conduits (10, 11) which extend approximately transversely with respect to each other. The supply conduits extend in a mutually parallel relationship and are arranged in pairs in the carrier plate (1) and are connected to a row of sleeves (2) by way of intake (16) and discharge conduits (17). The row of sleeves (2) is so disposed between the supply conduits (10, 11) of a pair such that each sleeve (2) is connected to both supply conduits (10, 11), and fluid communication is interrupted (plug 24) in at least the one supply conduit (10) of the pair substantially at the middle of its longitudinal extent (l).

Abstract: An injection molding system (10) includes a first mold half (20) and a second mold half (22), which forms a cavity (23) with the first mold half (20). A cavity intrusion element (34) is displaceable to extend within the cavity (23). A displacement mechanism (36) is coupled to the cavity intrusion element (34). A controller (38) is coupled to the displacement mechanism (36) and controls the intrusion depth (D) of the cavity intrusion element (34) during an injection molding process. A method of forming an article includes the pressurizing of the cavity (23) within a mold (14) via a gas. A material having a blowing agent is injected into the cavity (23). The gas pressure within the cavity (23) is released. The cavity intrusion element (34) is backed out from within the cavity (23). The material is cured.

Abstract: Within a cotton candy machine a delay-on-break delay timer is used to delay the de-energization of the spinner-head motor for a predetermined period of time after the heater elements are turned off. Thus, while the heater elements are cooling down, the motor and spinner head continue to rotate. Once the heater elements are cooled to the point where they cannot melt or burn the sugar, then the motor can be de-energized and the spinner head allowed to stop.

Abstract: A granulating die B is provided with a resin discharge surface 5a to which a flow of water is contacted; and a plurality of nozzles 8 which communicate to a cylinder of an extruder are provided in this resin discharge surface 5a. Upon the resin discharge surface 5a, these nozzles 8 are not formed in at least one of its regions P which are in the direction of inflow of the flow of water and in the direction of outflow of the flow of water, and its regions R which are in directions orthogonal to this direction of inflow of said flow of water and this direction of outflow of said flow of water, but are only formed in the other regions Q thereof.

Abstract: An apparatus and method for fabricating the light guide panel reduces the thickness of the stamper and fixes it firmly in place. The apparatus and method for fabricating the light guide panel according to the present invention has a stamper for forming patterns on the light guide panel and first and second side mold frames which are separable so as to hold the stamper in place during the formation of the light guide and so as to easily eject the finished light guide after it has formed and hardened.

Abstract: The needle shut-off nozzle is provided in a housing for delivering polymer melt to an injection molding machine or an injection molding tool. The nozzle is mounted in a channel of the housing for a flow of the polymer melt, a nozzle at an outlet of the channel, a shut-off needle guided in the channel for shutting off the nozzle, and a needle drive for moving the shut-off needle. The needle drive includes a drive cylinder inside said channel, a piston connected to the shut-off needle and a pneumatic circuit for delivering a compressed gas at a pressure greater than 50 bar to the drive cylinder to drive the piston.

Abstract: A composite mold comprising a main body, a molding layer formed on the main body, and a protective layer formed on the molding layer, the protective layer being made from diamond-like carbon. A method for manufacturing the composite mold comprising the following steps: providing a main body; forming a molding layer on the main body; and forming a protective layer on the molding layer, the protective layer being comprised of diamond-like carbon.

Abstract: A dough divider comprises a machine housing (3); a dough collecting container (4) which is mounted on the machine housing (3), receiving dough that is to be metered; a dough delivery arrangement which is connected to the dough collecting container (4), comprising a driven dough delivery piston (15) for the delivery of dough from the dough collecting container (4); and a dough metering arrangement, which comprises a first row of first measuring pistons (40), which are driven for displacement in first piston casings (42), taking dough from the dough delivery arrangement, and at least a second row of second measuring pistons (41), which are driven for displacement in second piston casings (43), taking dough from the dough delivery arrangement, with the first piston casings (42) having a cross-sectional area A1 and the second piston casings (43) having a cross-sectional area A2 so that A1 differs from A2, the dough metering arrangement being displaceable such that dough from the at least one delivery piston (15)