Composite material blade for wind tunnel
A technology of composite materials and blades, which is applied in the field of composite material blades for wind tunnels, can solve the problems such as the details of the processing are not mentioned, and achieve the effect of excellent aerodynamic shape, low density and strong deformation resistance
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[0021] A composite material blade for a wind tunnel according to the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments:
[0022] Such as Figure 1 to Figure 3 As shown, the composite material blade used in the wind tunnel of the present invention includes a skin 2, a front / rear edge reinforcement area 1, a foam core 3, a main bearing beam 4 and a metal leaf handle. The metal petiole is forged from 35CrMo steel or 42CrMo steel. The foam core material 3 is one or a combination of PMI core material or polyurethane core material. The materials used for the skin 2, the front / rear edge reinforcement area 1 and the main bearing beam 4 are all carbon fiber reinforced epoxy resin-based composite materials.
[0023] Wherein, the metal petiole includes a square-shaped blade part 5 and a long rod-shaped shaft part 6 . The length of the blade part 5 of the metal petiole accounts for 1 / 8-1 / 3 (for example: 1 / ...
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