| 摘要 |
<p>The invention regards a device for safeguarding the vacuum valves for die-casting Zn+Al+Mg, aluminium, brass and similar alloys, in which each vacuum valve has an inlet connected to the die for die-casting and an outlet passage for connection to a suction apparatus through a composite body with a section 14 for accumulating liquid and solid particles and impurities and an air filtering section 15. Figure 2 <IMAGE></p> |
