초록 ▼

A radome being a unitary structure comprised of a fiber reinforced plastic is produced with a large percentage of the fibers being randomly oriented in a plane parallel to the inner surface of the radome. The radome is produced by packing a layer of fiber filled powder around a mandrel having its ou

A radome being a unitary structure comprised of a fiber reinforced plastic is produced with a large percentage of the fibers being randomly oriented in a plane parallel to the inner surface of the radome. The radome is produced by packing a layer of fiber filled powder around a mandrel having its outer contour resemble the inner contour of the radome. The mandrel and packed powder are then subjected to isostatic pressing to properly orient the fibers. The radome is finished by sintering the powder and removing the finished form from the mandrel.

대표청구항 ▼

A method for the production of a complex shape of unitary structure from fiber reinforced polymeric material comprising the steps of: forming a mixture of powdered polymeric material and reinforcing fibers; packing a layer of said mixture around a mandrel having a surface contour which resembles the

A method for the production of a complex shape of unitary structure from fiber reinforced polymeric material comprising the steps of: forming a mixture of powdered polymeric material and reinforcing fibers; packing a layer of said mixture around a mandrel having a surface contour which resembles the interior surface of the complex shape; subjecting said layer of said mixture to a sufficient pressure to compact said layer upon the mandrel to almost the ultimate desired density of said layer; applying said pressure equally over and normal to the entire surface of the mandrel; heating said layer to sinter said mixture; cooling said layer; and machining said layer to the desired contour of the complex shape.