Abstract: A spray system has a base plate, a support member, a first cylinder mechanism and a second cylinder mechanism, a first slide tube and a second slide tube, a first board portion and a second board portion, a first holding bar, and a second holding bar. Each board portion is so constructed that a nozzle cassette is detachably fitted to a board base plate, the nozzle cassette is equipped with a number of spray nozzles, the first cylinder mechanism is so constructed that the first board portion can be moved relative to the support member, and the second cylinder mechanism is so constructed that the second board portion can be moved relative to the support member.

Abstract: A powdery mold-releasing lubricant according to the present invention uses a powdery mixture of a powdery organic material, which is evaporated or decomposed by heating to generate a gas, and a powdery inorganic material. A gas-solid mixed layer formed with the gas generated from the powdery mixture and the powdery inorganic material is used as a heat-insulating boundary layer. The powdery mold-releasing lubricant is inexpensive and has a superior mold lubricity.

Abstract: A spray system has a base plate, a support member, a first cylinder mechanism and a second cylinder mechanism, a first slide tube and a second slide tube, a first board portion and a second board portion, a first holding bar, and a second holding bar. Each board portion is so constructed that a nozzle cassette is detachably fitted to a board base plate, the nozzle cassette is equipped with a number of spray nozzles, the first cylinder mechanism is so constructed that the first board portion can be moved relative to the support member, and the second cylinder mechanism is so constructed that the second board portion can be moved relative to the support member.

Abstract: There provided a powder supply means for supplying a powdery mold releasing agent to a basin and a pressure reduction means for reducing a pressure in a cavity, and in a casting work the powdery mold releasing agent is supplied through a basin into a cavity while reducing a pressure in the cavity.

Abstract: A method of coating a powder lubricant in a metallic injection molding machine having a die composed of a stationary die (2) and a movable die (10), a sprue hole (4), runner groove (5), gate hole (6) and cavity (7) being formed on parting faces (P) of these dies (2, 10), a cold plug catcher (13) communicating with the sprue hole (4) when the movable die (10) is fastened to the stationary die (2) being formed in the movable die, the method of coating a powder lubricant in a metallic injection molding machine comprising the step of coating the powder lubricant from the cold plug catcher (13) toward the cavity (7) by decompressing the inside of the sprue hole, runner groove, gate hole and cavity from the cavity side.

Abstract: An inlet/outlet pipe extending downward from a bottom face of a body for a ladle is bent at its tip end into an S-shape in an intermediate portion of the pipe, and its tip end is located at a level higher than that of the bent portion. When a negative pressure in the ladle body is increased, a height of range of a molten metal is increased before and after an occurrence of disturbance in the ladle body, so that the negative pressure in the ladle body is made balance with a weight of the molten metal. Thereby, the molten metal is measured and held at a constant volume in the ladle body.

Abstract: A sleeve lubricating mechanism which is able to positively coating a powder lubricant onto an inside surface of a molten metal feeding sleeve for a vertical shot casting machine. This mechanism is composed of an attachment which contacts with a molten metal feeding port of the sleeve to block it so as to bring a sleeve inside to a closed condition, a vacuum device sucking air from the sleeve inside through the attachment, and a powder feeding device discharging the powder lubricant together with air from a nozzle into the sleeve inside through the attachment.

Abstract: In a spray method for spraying and applying a powdery mold coating agent onto both inside surfaces of a movable metal mold and a stationary metal mold for a permanent mold casting device, a spray method of permanent mold casting powdery mold coating agent in which a spray head provided with an electrostatic spray gun is fit to a feeding port so as to shut it tightly and a suction head connected to a suction pump is fit to a riser port so as to shut it tightly under a state where the movable metal mold and the stationary metal mold are closed. An inside of cavity is sucked by the suction pump through the riser port so as to produce a pressure difference between inside and outside of the cavity, and a powdery mold coating agent supplied from a powdery mold coating agent feeding device to the electrostatic spray gun is discharged from the electrostatic spray gun by means of the above pressure difference so as to be electrostatically adsorbed onto the inside surfaces of the foregoing both metal molds.

Abstract: A powdery mold release agent spray device including a nozzle having spray ports on its tip end side wall, a nozzle having spray ports on its tip end surface and shut pins, all of which are assembled in through holes made on both metal molds. The spray ports of the former and latter nozzles are exposed to cavity inside at time of spraying work, the spray ports of the former and latter nozzles are located in the through holes and the cavity is isolated from the spray ports of the latter nozzle by the shut pin. By using this spray device, a powdery mold release agent can be sprayed onto inside surfaces of the metal molds without exception, economically and without worsening a work environment.

Abstract: A nozzle for spraying the mold release agent and a holding body for holding the nozzle are included in the spray device. The holding body is so constructed as to fit in an opening of a mold casting device in which a tip end of a sleeve of a feeder fits in order to feed molten metal, and the nozzle is so held by the holding body that its tip end can be extended from the holding body for a desired length and can be turned in a desired direction.

Abstract: The device has a device body including an inside space having an airtightness able to provide a nonactive gas atmosphere, the inside space having a charging port, a filling port and a melting chamber surrounded by an induction heating coil; a first piston transporting a non-ferrous alloy lump to the melting chamber; and a second piston permitting the melted non-ferrous alloy to flow out of the filling port.

Abstract: An atomizer having a mold release agent passage and a pressure air passage that sprays misty mold release agent by mixing mold release agent coming from the mold release agent passage with pressure air coming from the pressure air passage. A rotor having plural vanes is installed in a course of a mold release agent passage of the atomizer in such a way that the vanes are subjected to a pressure of the mold release agent passing through the mold release agent passage and are rotated by the mold release agent, and a rotating speed sensor for detecting a rotating speed of the rotor is installed therein.