| 摘要 |
<p>The present invention relates to a die-casting device, and more specifically to a die-casting device whereby superior moulded articles can be obtained by ensuring good hermetic sealing properties in the moulding space and the melt sleeve space of the mould, and by expelling internal air to the outside and so precisely maintaining the degree of vacuum. The present invention is a die-casting device in which cast moulding is carried out by injecting a melt into the hollow part of a melt-pressurizing sleeve provided between an immobile-side mould base and a mobile-side mould base and then pressurizing the melt into the moulding space between the mobile mould and immobile mould by means of a melt-pressurizing plunger, wherein the die-casting device comprises: a sealing ring which is disposed on the outer circumferential surface of the melt-pressurizing sleeve; a heating part which is provided on the inside of the melt-pressurizing sleeve and is disposed so as to surround the hollow part of the melt-pressurizing sleeve; and a cooling part which is provided on the inside of the melt-pressurizing sleeve and is disposed adjacent to the sealing ring, and wherein first packing is provided on the diametrically outer surface of the sealing ring, second packing is provided on the diametrically inner surface of the sealing ring, on the first packing there is outer packing which extends into a structure enveloping the periphery of the immobile mould, formed on the immobile-side mould base there is an insertion recess with a structure enveloping the periphery of the immobile mould, and the outer packing is inserted into the insertion recess.</p> |
