| 摘要 |
<p>An injector (10) particularly for a vacuum die-casting apparatus, comprising an injector body (12) provided with at least one first opening (13) for injecting/aspirating a protective gas and at least one second opening (15) for loading molten material, which are arranged in order of operation. The injector body (12) is further provided with a chamber (17) for containing material and for the sliding of a piston (19) for pushing the material into a die. The injector also comprises elements for cleaning (22) and lubricating (23) the external surface of the piston which are arranged in order of operation on a corresponding supporting element (21) which is separate from the injector body. <IMAGE></p> |
