| 摘要 |
A vacuum die casting system is provided to extrude a mold without vacuum control with regard to a cavity in the mold by receiving a molding device in a main chamber, making vacuous the main chamber, and injecting a release agent dispenser in the molten iron. A vacuum die casting system comprises a main chamber(6), a vacuum pump(8), a molten liquid supplier, a product extractor, and an extracting device(17). The main chamber includes a molding device(1) having fixed and moving dies(2,3) formed with a cavity(5) to mold a product(W), and a release agent dispenser(7). The vacuum pump extracts air in the main chamber to form vacuum. The molten liquid supplier has a molten liquid tank(14), and a sleeve(10) for injecting the molten liquid into the cavity through a molten liquid gate(4). The extracting device includes an extracting chamber(18) which is placed at a first extracting door(16), an air pump(19) driven by a controller, and a second extracting door(20) extracting the product of the extracting chamber. The main chamber includes a vacuum gauge(9) for measuring pressure of the vacuum. The sleeve includes a molten liquid cylinder(11) connected with a connecting pipe(13), and an injection piston(12) for supplying the molten liquid into the cavity through the molten liquid gate.
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