| 摘要 |
<p>The mold comprises two profiled portions (1a, 1b) adapted internally to match the shapes of a piece to be compacted defining a casting core. The mold is made of an elastomeric shape memory material. The portions comprise a collar (1c) of half-portions forming an introduction chute made of a material to be compacted when the portions are assembled. The portions to be assembled have a plane of peripheral joints (1d). A plug (3) assures the sealing of the mold and the maintenance of portions to be joined together. The mold comprises two profiled portions (1a, 1b) adapted internally to match the shapes of a piece to be compacted defining a casting core. The mold is made of an elastomeric shape memory material. The portions comprise a collar (1c) of half-portions forming an introduction chute made of a material to be compacted when the portions are assembled. The portions to be assembled have a plane of peripheral joints (1d). A plug (3) assures the sealing of the mold and the maintenance of portions to be joined together. The mold closing the peripheral surfaces of contact of the mold portions forms the plane of joints. The mold, after formation of a casting core, has an internal volume that is greater than the volume of the core. The casting core is demolded in a pulling direction. The portions and the plane of peripheral joints forming an edge are assembled with a pin (4) disposed around a perimeter of the plane of joint. An independent claim is included for a method of making a casting core made of a powder material implementing the characteristics of a mold.</p> |
