Fixed propeller blade type propeller, film coating die and film coating method

The invention discloses a fixed propeller blade type propeller, a film coating die and a film coating method. A propeller blade main body structure is made of stainless steel, dense through holes aremachined in the propeller blade main body structure, and two surface plastic protection layers are connected into an integrated structure through through holes densely distributed in a propeller blade; and the problem that the propeller blade is not firm due to the fact that large-area surface recombination of the propeller blade can generate stripping phenomenon is solved, the abrasion resistanceand the corrosion resistance of the plastic are achieved, the energy transfer efficiency is improved through the interface slippage phenomenon of the propeller blade in water, and impact energy absorptivity reduces the running noise. The film coating die adopts a mode of machining key grooves and installing sliding keys, the positioning problem of parts of the die is solved, dislocation of a female die caused by movement