Device and method for low-pressure casting of metal melts

Abstract

A device and a method for the low-pressure casting of metal melts, comprising a casting furnace ( 1 ), a feed channel ( 2 ) for the metal melt, a channel ( 4 ) in the direction toward the casting mold ( 5 ), and a feed ( 6 ) for the gaseous pressure application, an intermediate container ( 7 ) being disposed between the casting mold ( 5 ) and the channel ( 4 ), and an access ( 8 ) for adding an inoculating agent ( 9 ) being provided in the intermediate container ( 7 ).

1 - 6 . (canceled) 
   
   
       7 . An apparatus for the low pressure casting of metal melts, comprising:
 a casting furnace having an inlet feed duct, an outlet duct and a feed for gaseous pressure application;   a casting mold downstream of the outlet duct;   an intermediate vessel located between the outlet duct and the casting mold; and   an access point to the intermediate vessel for the addition of an inoculant to the metal melt in the intermediate vessel.   
   
   
       8 . The apparatus according to  claim 7 , further including an overflow wall arranged in the intermediate vessel. 
   
   
       9 . The apparatus according to  claim 8 , wherein the access point for the inoculant is arranged upstream of the overflow wall. 
   
   
       10 . The apparatus according to  claim 7 , wherein the intermediate vessel has an opening and a riser is arranged inside the intermediate vessel at the opening and the casting mold is connected directly to the riser above the opening. 
   
   
       11 . A process for the low pressure casting of metal melts, comprising:
 providing a casting furnace having an inlet feed duct, an outlet duct and a feed for gaseous pressure application;   providing a casting mold downstream of the outlet duct;   providing an intermediate vessel located between the outlet duct and the casting mold;   providing an access point to the intermediate vessel for the addition of an inoculant to the metal melt in the intermediate vessel; and   introducing an inoculant into the metal melt in the intermediate vessel through the access point.   
   
   
       12 . The process as claimed in  claim 11 , including adding the inoculant in the form of granules.