| 摘要 |
<p>PURPOSE:To improve operability of molding for self-curing mold and dimensional accuracy in the mold. CONSTITUTION:A molding flask 2 is placed on a stool 14 and a pattern 1 is placed in the molding flask 2 and the molding board 14 is set on the three- dimensional manual molding machine and self-molding sand 3 is charged into the molding flask 2, and while giving the three-dimensional vibration, the molding sand 3 is packed between the pattern 1 and the molding flask 2, and further, by sacking the inside of the molding flask 2 into the reduced pressure, moisture incorporated in the molding sand 3 and moisture generated by reaction between resin in an adhesive and curing agent, mixed in the molding sand 3, are evaporated and removed with suction.</p> |
