| 摘要 |
The tool comprises at least two parts such that at least the lower part(2) has a molding cavity area(4) made from material(6) that allows air to escape from the cavity during molding. A base plate (8) and rectangular side blocks(7) around the outside provide stability and/or insulation to the air permeable material. The arrangement allows the air permeable area to be removed from the tool. <??>The upper part(3) of the tool may also have a molding cavity area made of the air permeable material. The air permeable material is heat stable and is preferably a fibrous material, e.g. medium density fiberboard (MDF). |
