A molding die and trailing edge coating method for an integrally solidified composite stator blade

Abstract

The invention discloses a forming die of an integrally solidified composite material stator blade. The forming die comprises an upper die module, a lower die module, an upper die metal strip (8) and a lower die metal strip (7), the upper die module comprises an upper die main module (3) and an upper die auxiliary module (4), the lower die module comprises a lower die main module (1) and a lower die auxiliary module (2), the upper die main module (3), the upper die auxiliary module (4), the lower die main module (1) and the lower die auxiliary module (2) are respectively provided with a cavity, the upper die main module (3) and the lower die main module (1) are locked to form the cavity of the main body of the processed blade, and the upper die auxiliary module (4) and the lower die auxiliary module (2) are locked to form the cavity of the tail rim of the processed blade. The invention also discloses a tail rim coating method of the stator blade by adopting the die. Tail rim coating, integral solidification of all layers, improvement of the tail rim reliability, blade integrity reinforcement and no high-temperature damages to the blade are realized in the invention.

Description

technical field [0001] The invention relates to the technical field of stator vane molding technology, in particular to a molding die and trailing edge coating method of an integral solidified composite stator vane. Background technique [0002] Composite stator blades with inner and outer edge plates adopt the method of overall curing and compression molding of fabric layers. The trailing edge of the blade is usually stacked and bonded by multiple layers. Cracking, delamination, so often requires wrapping of the trailing edge with a fabric layup. Since the blade body and the inner and outer edge plates are laminated continuously, if a simple mold is used, it is not feasible to directly cover the trailing edge with fabric during molding, and a secondary curing operation is usually required, but after the secondary curing, The bonding effect is often not good, and defects such as depressions and gaps are prone to appear at the overlapping joints, and the high temperature of ...

AI Technical Summary

Problems solved by technology

Since the blade body and the inner and outer edge plates are laminated continuously, if a simple mold is used, it is not feasible to directly cover the trailing edge with fabric during molding, and a secondary curing operation is usually required, but after the secondary curing, The bonding effect is often not good, and defects such as depressions and gaps are prone to appear at the overlapping joints, and the high temperature of the secondary curing is likely to cause adverse effects on the blades

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