Air guide plate and its preparation method and solidification molding method of stiffened wall panel containing it

Abstract

The invention discloses a gas guiding plate, a preparation method and a curing molding method of a stiffened wall plate comprising the gas guiding plate and belongs to the technical field of composite molding. The preparation method of the gas guiding plate includes the steps that a blank gas guiding plate is manufactured through a hard porous material, and holes matched with the bottom faces of ribs in shape are formed in the blank gas guiding plate; and blind holes are formed in the blank gas guiding plate, and the gas guiding plate is obtained. The hard porous material can disengage after the stiffened wall plate is overall molded, and no scrap edge needs to be machined on the edges of the ribs.

Description

Technical field [0001] The invention relates to the technical field of composite material molding, in particular to a gas deflector, a preparation method and a solidification molding method of a stiffened wall panel containing the same. Background technique [0002] Non-autoclave curing (Non-Autoclave or Vacuum-Bag-Only-Curable), also called Out-of-Autoclave (Out-of-Autoclave), was first proposed in the 1990s. Since then, Europe and the United States have invested a lot of energy Used for researching non-autoclave curing prepreg composite material technology. [0003] Compared with traditional autoclave curing technology, non-autoclave curing technology has obvious advantages in cost reduction and process simplification. The non-autoclave curing prepreg system can be heated and cured in the oven, which greatly saves equipment costs; Moreover, when oven curing is used, the curing process system is simple, only the temperature and vacuum level need to be controlled (generally, full ...

AI Technical Summary

Problems solved by technology

However, the limitation of this method is that it is only suitable for non-autoclave prepreg molding of composite laminates, such as skin structures.

For the integrally formed reinforced wall panel structure, such as T-shaped, hat-shaped and I-shaped structures, the layering of the ribs is complicated, and a large number of pores are prone to appear at the R corner, which affects the mechanical properties of the structural parts

When the non-autoclave prepreg technology is used to integrally form the reinforced panel structure, the channel design at the rib is difficult to realize

In the structure shown in Figure 2(a) and Figure 2(b), when the preformed ribs and the skin are integrally solidified, it is difficult to design similar ventilation channels at the edges of positions a and b

Because the air-conducting wire or air-conducting glass cloth placed around the laminate needs to be removed after demoulding, and the ribs are difficult to control the processing depth due to the complex structure, which is easy to cause damage to the skin, so it is difficult to process and trim

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