Mold for hardening fiber-reinforced plastic moldings in aerospace industry, includes extraction strips held by system of projections, depressions and magnets

摘要

The mold body (2) includes removable strips (3). These are used to extract or separate the molding after hardening. The strip has projections (6) and the mold has complementary depressions (7) (or vice versa). There is also a seal (8) for these configurations, separating them from the mold body. The complementary configurations are conical. They are arranged directly on the strip and/or main body. They are formed by metal inserts (10, 11) connected to the strip and/or main body. The inserts are detachably connected, e.g. using screws. Alternatively they are adhered or press-fitted. The seals (8) are ring seals, which are located in a groove surrounding the complementary configurations. They are made from heat-resistant, resilient plastic material. There are at least two configurations per strip. At least one recess is in the form of a long slot. The slot is formed in an insert (11) and holds the orientation relative to the strip or main body. Permanent magnets are incorporated in the configurations by adhesion. The main body of the mold is made from carbon- or glass fiber reinforced plastic. It is alternatively a metal, steel, nickel, iron-nickel alloy or aluminum. The strip is made from one of these metals or a carbon- or glass-reinforced plastic.