| 摘要 |
<p>A method of squeezing a foundry sand capable of solving a problem in upper and lower molds manufactured by a mold manufacturing apparatus, in which the foundry sand is squeezed by moving upper and lower squeeze plates close to each other after the foundry sand is filled in upper and lower molding spaces formed by the upper and lower flasks, match plates, and upper and lower squeeze means, wherein the hardness and strength thereof near the inner surfaces of the upper and lower flasks are not sufficient. The method is characterized in that the upper and lower squeeze plates are moved close to each other to squeeze the foundry sand in upper and lower molding chambers, and the pattern parts of the match plates are advanced to the upper and lower squeeze plate sides to further squeeze the foundry sand in the upper and lower molding chambers.</p> |
