摘要:
A receiving chamber receives a material heated in a heating chamber. An injecting shaft of an injecting machine slurries the material crushed by cutters downstream of the receiving chamber and feeds the slurried material to an injection port formed between the fore ends of the shaft and injecting chamber so that the slurried material is gradually accumulated in the port. The shaft is retracted by counteraction from the slurried material accumulated in the port, over a distance proportional to a current accumulated amount of the material in the port. The current accumulated amount of the material in the port can be detected from a current position of the shaft, and then it is determined whether the detected current accumulated amount has reached a predetermined amount. When the current accumulated amount has not reached the predetermined amount, the cutters and injecting shaft are further driven until the predetermined amount is reached. The receiving chamber has a pair of passage sections on its outer surface in opposed relation to each other, which function both as light beam passages for light emitting and receiving elements that are provided on the sections for detecting whether a heated material is in the receiving chamber, and as inert gas supply passages to direct inert gas into the receiving chamber.
摘要:
An upper unit of an injecting molding apparatus includes an ingot entry for introducing into the apparatus an ingot to be molded and an ingot heating chamber for heating the ingot supplied via the entry, and a lower unit includes a crusher for crushing the heated ingot and an injecting machine having an axially movable screw shaft for slurring and injecting the crushed ingot into a mold. The upper and lower units are interconnected via a flexible connector unit which is flexible in a vertical direction to allow the lower unit to vertically displace relative to the upper unit. By disengaging the connector unit from the upper unit, the lower unit can be disconnected from and laterally pivoted with respect to the upper unit to permit easy access to both the units. This displacement of the lower unit permits facilitated maintenance operations of the apparatus. A lower door provided for openably closing an ingot exit hole of the heating chamber is a vertically pivotable door that does not require a large operating space.
摘要:
A heating machine for heating an ingot of a metal such as a magnesium alloy. The heating machine has a heating chamber equipped with a RF induction coil capable of swinging about a horizontally axis. The coil is placed horizontally, and the metal ingot is fed into the coil from an introduction chamber by a pushrod. Stoppers prevent the ingot from falling from the RF induction coil when it is switched from its horizontal posture to its vertical posture. The coil is wound on a cylindrical member. A rotatable hollow shaft is firmly mounted to the holder in a perpendicular relation to a substantially axially central portion of the cylindrical member. A part of the coil is inserted in the hollow shaft via an insulating material. The rotatable hollow shaft is swung by a swinging mechanism. The induction heating coil is wound on a ceramic holder. A metal ingot is inserted in the holder with a given clearance. A plurality of pillars of L-shaped cross section are fitted over the holder to place it in position vertically and horizontally.
摘要:
A method for heating a metal ingot for a injection molding comprising steps of finding out a time in advance relating to the time required for heating up to a set temperature in a test by using a thermocouple and a timer in a test furnace, of heating the ingot to the set temperature by heating it for that period of time in an actual furnace and of measuring a temperature at that time by a radiation thermometer to reserve the temperature based on the measurement. Further, it comprises steps of detecting an oxygen concentration within an atmosphere of the heating chamber after evacuating the heating chamber of the metal ingot to fill with an inert gas and of controlling power fed to an induction heating coil to heat the metal ingot when the detected oxygen concentration within the atmosphere is below a predetermined value.
摘要:
A predetermined amount of molten metal 12 is supplied to a heat-insulating crucible 18. After that, a chill block 46, which is cooled to a predetermined temperature of not more than a temperature of the molten metal 12, is immersed and rotated in the molten metal 12. Accordingly, the molten metal 12 is agitated while being cooled to give no directivity of cooling. It is possible to obtain semisolidified metal 20 which is formed into slurry uniformly and effectively as a whole. The semisolidified metal 20 is discharged from the heat-insulating crucible 18, and it is supplied to a forming machine 22 to apply a forming treatment thereto. Accordingly, it is possible to produce the desired slurry efficiently and economically.
摘要:
An apparatus for producing a metal formed product comprises a molten metal-holding furnace; a semisolidified metal-producing mechanism; a cooling member-restoring mechanism arranged adjacent to the semisolidified metal-producing mechanism, for applying a restoring treatment so that chillers have a desired function; a forming machine for forming semisolidified metal to have a predetermined shape; and an articulated robot capable of transporting a crucible to the molten metal-holding furnace, the semisolidified metal-producing mechanism, and the forming machine. The semisolidified metal-producing mechanism includes first to third agitators. The cooling member-restoring mechanism includes first to third treating sections. These components are arranged in a direction of back and forth movement of the articulated robot. Accordingly, it is possible to efficiently obtain the metal formed product having a high quality.
摘要:
In a recording system in which a digital still camera and a photo-direct printer are directly connected to each other via a general interface, image data is transmitted to the printer from the camera, and the data is printed. A communication procedure is established by applications installed into the printer and the camera, each of a plurality of functions serving as the printing system are assigned to either the camera or the printer, data and a command are transferred between the functions assigned to the camera and the printer, and recording is performed by the printer based on image data supplied from the camera.
摘要:
A method of manufacturing a heat transport device includes injecting a working fluid that transports heat by a phase change into a casing through an injection opening of the casing under reduced pressure, sealing an injection path by caulking under the reduced pressure, the injection path being provided in the casing into which the working fluid is injected and causing the injection opening and an action area in which the phase change of the working fluid occurs to communicate with each other, contacting a peripheral area of the injection opening of the casing with an inner surface of the injection path by caulking the peripheral area, the peripheral area including the injection opening, and sealing the injection opening by welding a part of the casing contacted.
摘要:
A printing system in which a DSC and a PD printer are directly connected to each other via a general interface, image data is transmitted from the DSC to the PD printer, and the data is printed, wherein the number of offset bytes and a data amount of the image data are designated from a print controller to a storage controller to specify partial image data, the storage controller reads the partial image data from the storage device of the DSC based on the specification, the partial image data is supplied to a print controller of the PD printer, and printing is performed.
摘要:
An outer cylindrical section is rotatable with a first shaft. Magnetic shielding portions are formed of a magnetic shielding or antimagnetic substance and arranged on a surface of a nonmagnetic and nonconductive cylindrical base. The magnetic shielding portions are spaced apart from each other by a predetermined interval in a circumferential direction of the cylindrical base so that non-magnetically-shielding portions are formed between the magnetic shielding portions. A plurality of coils are provided on a periphery of the outer cylindrical section and excitable by a predetermined A.C. signal. An inner cylindrical section is inserted in the outer cylindrical section and rotatable with a second shaft. The inner cylindrical section includes magnetic portions each provided to present a different characteristic with respect to an arrangement of the plurality of coils. Degree of overlap between the non-magnetically-shielding portions of the outer cylindrical section and the magnetic portions of the inner cylindrical section varies in response to a variation in the relative rotational position between the first shaft and the second shaft, and each of the coils presents impedance corresponding to the degree of overlap.