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US 4,730,658 AGranted
Injection method in a hot chamber type die casting machine and injection apparatus for carrying the method
OwnerAkio Nakanoinventor
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OwnerAkio Nakanoinventor
Estimating the term…
The present invention relates to an injection method and apparatus for carrying out the method in a hot chamber type die casting machine for injecting and filling melting metal or so-called molten metal stored in a retaining furnace into a mold in a system of a thermally pressurizing chamber to cast and mold metal products, wherein brought into communication with a drawing-up cylindrical body stood upright with a lower opened end dipped into the retaining furnace is an injection cylindrical body with one opened end connected to a sprue of a mold to form a cross-shape sleeve, by which molten metal within the retaining furnace is drawn up outside the retaining furnace by a suction force, and the thus drawn-up molten metal is injected and filled into the mold by a pressing force.
An injection method in a hot chamber type die casting machine of the type having an injection cylindrical body having one open end and connected to a sprue of a mold and a drawing-up cylindrical body in fluid communication with the injection cylindrical body and positioned crosswise thereto with a lower open end of the drawing-up cylindrical body dipped into molten metal within a retaining furnace to form a cross-shape sleeve, said method comprising the steps of:
An injection apparatus in a hot chamber type die casting machine, comprising:
The injection apparatus according to claim 11, wherein the retaining furnace is constructed such that a heat retaining ladle is a single body for storing molten metal and is calcined with a heat retaining ceramic having excellent heat and shock resistance characteristics so as to be capable of withstanding temperatures in the range of approximately 600.degree. C. to 1,650.degree. C., said ceramics-made heat retaining ladle being disposed within a machine frame, and a ceramics heat retaining material with a heat generating member embedded into the ceramics and integrally calcined is closely internally interposed between an inner surface of the machine frame and an outer surface of the heat retaining ladle.
Dependencies are inferred from the claim text.