Technological cover plate of combined structure and production method therefor

Abstract

The present invention belongs to the technical field of composite materials manufacturing and particularly relates to a technological cover plate of a combined structure and a production method therefor . The technological cover plate of the combined structure is compsoed of a split forming face plate, a separation area and a connection body. The split forming face plate is of a composite material structure and is formed by sub forming face plates, wherein the sub forming face plates are provided with wedge-shaped boundary structures and are overlapped through the separation area. The separation areas are formed by film structure materials with the single layer having demolding / pasting two functions. The connection body is made of rubber materials. During production, the wedge-shaped boundary structures of the sub forming face plates are produced by a prepreg gradient pasting method, the sub forming face plates are connected to form the split forming face plate through the separation area, the connection body is integrally arranged on the split forming face plate, and the split forming face plate, the seperation area and the conenction body are formed through one-step curing. The technological cover plate of the combined structure is provided with an interior structure having a high motion coordination performance, has a high-quality surface forming effect, and has an important engineering value for production of skins of irregular profile structures made of composite materials.

Description

technical field [0001] The invention belongs to the technical field of composite material manufacturing, and relates to a composite structure process cover plate and a preparation method, in particular to a split forming panel / isolation area / connector composite structure process cover plate and a preparation method. Background technique [0002] The process cover plate is a commonly used auxiliary forming tool for the manufacture of composite skins. Its surface quality determines the outer surface forming effect of the skin part, and the structural characteristics determine its bonding effect with the skin body, and finally Determines the internal quality of the skin formed under the required high pressure conditions. [0003] At present, most of the cover plates of composite material skin technology are integral structures, which are made of rubber materials or composite materials. The former is mostly used for female molding, while the latter is mostly used for male moldin...

AI Technical Summary

Problems solved by technology

As far as the process cover is concerned, the surface shaping quality of the rubber process cover is low, which obviously cannot meet the corresponding technical requirements. Although the current overall structure of the composite material process cover can meet the surface shaping effect requirements, but because of its high rigidity, The coordination of internal structure activities is poor, and it is easy to cause position mismatch with the composite material special-shaped skin body. Internal defects such as protruding corners, resin-rich, and delamination caused by structural mutation areas such as inner / outer R areas and inner / outer corners are obviously impossible. Satisfy the manufacturing technical requirements of composite material profiled skin

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