| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a lost foam casting method, wherein for a mold removal work in lost foam casting, a casting product can be easily taken out without arranging a large-scale dust collector and also without inverting a flask, and simultaneously, the whole of casting sand can be swiftly cooled. <P>SOLUTION: In the lost foam casting method where a lost foam is installed in a flask, and the pressure in the flask is reduced upon pouring, so as to attain the suction of generated gas and the strengthening in the consolidation of casting sand in the flask, prior to a mold removal operation, compressed air is injected into the flask, and, while fluidizing the casting sand at the inside and releasing the consolidated state, a casting product is taken out from the flask, and simultaneously, the casting sand is cooled while being stirred and mixed. <P>COPYRIGHT: (C)2008,JPO&INPIT |
