| 摘要 |
A lay-up mold is disclosed. The mold comprises a multi-sided vertically extending frame formed of sheet steel. A plurality of spaced apart vertically extending ribs also formed of sheet steel are positioned within the frame and rigidly affixed thereto, the ribs having upper edges which conform to the shape of the mold surface. The mold also comprises a plurality of spaced apart vertically extending partition elements formed of sheet steel positioned within the frame which transverse the ribs and rigidly and are affixed to the frame, with the partition elements having upper edges which conform to the shape of the mold surface. A layer of perforated sheet steel is rigidly affixed to the frame and the upper edges of the ribs and partition elements, with a coating of polyurethane overlying and bonded to and interlocked with the perforated sheet steel, the coating forming the mold surface.
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